Protocol description for IEC 61850 - myprotectionguide.com · Voltage regulator TAPCON® 260 Operating Instructions 1801003/05 Protocol description for IEC 61850

Voltage regulator TAPCON® 260

Operating Instructions 1801003/05Protocol description for IEC 61850

© All rights reserved by Maschinenfabrik Reinhausen

Copying and distribution of this document and utilization and communication of its contents are strictly prohibited unless expressly authorized.

Offenders will be held liable for the payment of damages. All rights reserved in the event of the grant of a patent, utility model or ornamental design registration.

The product may have been modified after this document went to press.

We expressly reserve the right to make changes to the technical data, the design or the scope of delivery.

Generally, the information provided and the arrangements agreed during processing of the relevant quotations and orders are binding.

The original operating instructions were drawn up in German.

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© Maschinenfabrik Reinhausen 2013 1801003/05 EN TAPCON® 260 3

Table of Contents

1 Introduction .................................................................................. 9

1.1 Manufacturer ........................................................................................... 9

1.2 Subject to change without notice ............................................................. 9

1.3 Completeness ......................................................................................... 9

1.4 Supporting documents ........................................................................... 10

1.5 Safekeeping .......................................................................................... 10

1.6 Notation conventions ............................................................................. 10

1.6.1 Abbreviations used ............................................................................................. 11 1.6.2 Hazard communication system ........................................................................... 12 1.6.3 Information system .............................................................................................. 13

2 Safety .......................................................................................... 15

2.1 General safety information ..................................................................... 15

2.2 Appropriate use ..................................................................................... 15

2.3 Inappropriate use .................................................................................. 16

2.4 Personnel qualification .......................................................................... 16

2.5 Operator duty of care ............................................................................. 16

3 Product description ................................................................... 19

3.1 Performance features ............................................................................ 21

3.2 Relay of the signals via IEC 61850 ........................................................ 22

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4 TAPCON® 260 1801003/05 EN © Maschinenfabrik Reinhausen 2013

3.2.1 LLN0 - Logical node ............................................................................................ 22 3.2.2 LPHD - Physical device ...................................................................................... 22 3.2.3 LPHD - Physical device ...................................................................................... 23 3.2.4 GGIO1 - IO card inputs ....................................................................................... 25 3.2.5 GGIO2 - UC1 card inputs ................................................................................... 26 3.2.6 GGIO3 - UC2 card inputs ................................................................................... 27 3.2.7 GGIO4 - UC3 card inputs (optional) ................................................................... 28

3.3 Operating modes ................................................................................... 29

3.4 Scope of delivery ................................................................................... 29

3.5 Hardware description ............................................................................ 30

3.5.1 Internal design .................................................................................................... 31 3.5.2 Communication Interfaces .................................................................................. 31

3.6 Operation and indicator elements .......................................................... 36

3.6.1 Operating concept .............................................................................................. 37 3.6.2 Description of the display.................................................................................... 38 3.6.3 Description of key functions ................................................................................ 40 3.6.4 Description of LEDs ............................................................................................ 41

4 Packaging, Transport and Storage ........................................... 43

4.1 Packaging ............................................................................................. 43

4.1.1 Purpose............................................................................................................... 43 4.1.2 Suitability, structure and production ................................................................... 43 4.1.3 Markings ............................................................................................................. 44

4.2 Transportation, receipt and handling of shipments ................................ 44

4.3 Storage of shipments ............................................................................ 45

5 Mounting ..................................................................................... 47

5.1 Unpacking ............................................................................................. 47

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5.2 Mounting ............................................................................................... 47

5.3 Connection ............................................................................................ 48

5.3.1 Cable recommendation for standard connections .............................................. 48 5.3.2 Cable recommendation for optional connections ............................................... 49 5.3.3 Electromagnetic compatibility ............................................................................. 49 5.3.4 Connecting lines to the system periphery ........................................................... 56 5.3.5 Voltage regulator power supply .......................................................................... 57 5.3.6 Wiring the voltage regulator ................................................................................ 57

5.4 Function check ...................................................................................... 58

6 Commissioning .......................................................................... 59

6.1 Configuration ......................................................................................... 59

6.1.1 Setting the language ........................................................................................... 59 6.1.2 Selecting the control mode ................................................................................. 60 6.1.3 Controlling remote tap position indicator with BCD signal .................................. 61

6.2 Function tests ........................................................................................ 63

6.2.1 Function tests for control functions ..................................................................... 63 6.2.2 Function tests for additional functions ................................................................ 65 6.2.3 Function tests for parallel operation .................................................................... 68

7 Functions and settings .............................................................. 73

7.1 Key lock ................................................................................................. 73

7.1.1 Activating key lock .............................................................................................. 73 7.1.2 Deactivating key lock .......................................................................................... 73

7.2 NORMset .............................................................................................. 74

7.2.1 Entering NORMset desired value 1 .................................................................... 76 7.2.2 Setting the primary voltage ................................................................................. 77 7.2.3 Setting the secondary voltage ............................................................................ 78

7.3 Parameters ............................................................................................ 79

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7.3.1 Setting control parameters.................................................................................. 79 7.3.2 Setting desired value 1 ....................................................................................... 80 7.3.3 Setting desired value 2 ....................................................................................... 81 7.3.4 Setting desired value 3 ....................................................................................... 82 7.3.5 Bandwidth ........................................................................................................... 83 7.3.6 Setting delay time T1 .......................................................................................... 87 7.3.7 Setting control response T1 ................................................................................ 89 7.3.8 Activating/deactivating delay time T2 ................................................................. 90 7.3.9 Setting delay time T2 .......................................................................................... 91 7.3.10 Limit values ......................................................................................................... 91 7.3.11 Abnormal control response ............................................................................... 101 7.3.12 Compensation ................................................................................................... 105 7.3.13 Cross-monitoring .............................................................................................. 114

7.4 Configuration ....................................................................................... 123

7.4.1 Transformer data .............................................................................................. 123 7.4.2 General ............................................................................................................. 132 7.4.3 Parallel operation .............................................................................................. 145 7.4.4 Configuring analog inputs ................................................................................. 156 7.4.5 LED selection .................................................................................................... 164 7.4.6 Configuring transducer function ........................................................................ 167 7.4.7 Configuring measured value memory function (optional) ................................. 173 7.4.8 Communication interface SID ........................................................................... 190

7.5 Info ...................................................................................................... 195

7.5.1 Carrying out LED test ....................................................................................... 197 7.5.2 Querying status ................................................................................................. 198 7.5.3 Resetting parameters ....................................................................................... 200 7.5.4 Displaying real-time clock ................................................................................. 200 7.5.5 Displaying parallel operation ............................................................................ 200 7.5.6 Displaying data on CAN bus ............................................................................. 201 7.5.7 Displaying measured value memory ................................................................ 203 7.5.8 Displaying peak memory .................................................................................. 203 7.5.9 Displaying CIC1 card SCADA information ........................................................ 204 7.5.10 Displaying CIC2 card SCADA information ........................................................ 205 7.5.11 Displaying upcoming messages ....................................................................... 206

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8 Interface description for IEC 61850 protocol ......................... 207

8.1 Physical connection ............................................................................. 207

8.2 Device-specific data points for TAPCON® 260 .................................... 207

8.3 Downloading the ICD file ..................................................................... 208

9 Fault elimination ....................................................................... 209

9.1 Operating faults ................................................................................... 209

9.1.1 No control in AUTO mode ................................................................................. 209 9.1.2 Man Machine Interface ..................................................................................... 210 9.1.3 Incorrect measured values................................................................................ 211 9.1.4 Parallel operation faults .................................................................................... 212 9.1.5 Tap position capture incorrect .......................................................................... 213 9.1.6 Digital inputs ..................................................................................................... 214 9.1.7 General fault ..................................................................................................... 214 9.1.8 No solution ........................................................................................................ 214

9.2 Event message .................................................................................... 216

10 Technical Data .......................................................................... 217

10.1 Indicator elements ............................................................................... 217

10.2 Electrical data ...................................................................................... 217

10.3 Inputs and outputs ............................................................................... 217

10.4 Dimensions and weight ....................................................................... 218

10.5 Voltage and current measurement ....................................................... 219

10.6 Ambient conditions .............................................................................. 219

10.7 Tests ................................................................................................... 219

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10.7.1 Electrical safety ................................................................................................. 219 10.7.2 EMC tests ......................................................................................................... 220 10.7.3 Environmental durability tests ........................................................................... 220

11 MR worldwide ........................................................................... 221

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Introduction

This technical file contains detailed descriptions on the safe and proper mounting, connection, commissioning and monitoring of the product.

It also includes safety instructions and general information about the product.

This technical file is intended solely for specially trained and authorized per-sonnel.

1.1 Manufacturer

The product is manufactured by:

Maschinenfabrik Reinhausen GmbH Falkensteinstraße 8 93059 Regensburg Tel.: (+49) 9 41/40 90-0 Fax: (+49) 9 41/40 90-7001 E-Mail: [email protected]

Further information on the product and copies of this technical file are availa-ble from this address if required.

1.2 Subject to change without notice

The information contained in this technical file comprise the technical specifi-cations approved at the time of printing. Significant modifications will be in-cluded in a new edition of the technical file.

The document and version numbers of this technical file are shown in the footer.

1.3 Completeness

This technical file is incomplete without the supporting documentation.

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1.4 Supporting documents

The following documents apply to this product:

• Operating instructions

• Quick reference guide

• Connection diagrams

In addition, generally applicable legal and other binding regulations of Euro-pean and national law and the regulations for accident prevention and envi-ronmental protection in force in the country of use must be complied with.

1.5 Safekeeping

This technical file and all supporting documents must be kept ready to hand and accessible for future use at all times.

1.6 Notation conventions

This section contains an overview of the abbreviations, symbols and textual emphasis used.

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1.6.1 Abbreviations used

Abbreviation Definition

°C Degrees Celcius A Ampere AC Alternating Current B Bandwidth BCD Binary Coded Decimal ca. circa CAN Regulator Area Network CIC Communication Interface Card CPU Central Processing Unit CT Current Transformer DC Direct Current

DIN Deutsches Institut für Normung (German Institute for Standardization)

DNP Distributed Network Protocol EMC Electromagnetic compatibility ESC Escape Hz Hertz I Current IEC International Electrotechnical Commission IP Internet Protocol kBaud Kilobaud kg Kilogram kV Kilovolt LDC Line Drop Compensation LED Light Emitting Diode Fiber-optic cable Fiber-optic cable max. maximum MB Megabyte MR Maschinenfabrik Reinhausen MHz Megahertz min. minimum mm Millimeter ms Millisecond N Neutral PH Phase Phi (φ) Phase angle ppm Parts per million

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Abbreviation Definition

s Second SCADA Supervisory Control and Data Acquisition T Time TCP Transmission Control Protocol V Voltage VAct Actual voltage VRef Reference voltage V Volt VT Voltage Transformer

Table 1 Abbreviations used

1.6.2 Hazard communication system

Warnings in this technical file use the following format:

DANGER!

Danger

Consequences

Action

Action

The following signal words are used:

Signal word Hazard level Consequence of failure to comply

Danger Immediate threat of danger Death or serious injury could occur Warning Possible threat of danger Death or serious injury could occur

Attention Possible dangerous situation Minor or moderate injury could oc-cur

Note Possible dangerous situation Damage to property could occur Table 2 Signal words in warning notices

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Pictograms warn of dangers:

Picto gram

Meaning

Danger

Dangerous electrical voltage

Fire hazard

Danger of tipping

Table 3 Symbols used in warning notices

1.6.3 Information system

Information is designed to simplify and improve understanding of particular procedures. In this technical file they are laid out as follows:

Important information

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2 Safety

2.1 General safety information

This technical file contains detailed descriptions on the safe and proper mounting, connection, commissioning and monitoring of the product.

Read this technical file through carefully to familiarize yourself with the prod-uct.

Particular attention should be paid to the information given in this chapter.

2.2 Appropriate use

The product and associated equipment and special tools supplied with it comply with the relevant legislation, regulations and standards, particularly health and safety requirements, applicable at the time of delivery.

If used as intended and in compliance with the specified requirements and conditions in this technical file as well as the warning notices in this technical file and attached to the product, then the product does not present any ha-zards to people, property or the environment. This applies throughout the product's full life, from delivery through installation and operation to disas-sembly and disposal.

The operational quality assurance system ensures a consistently high quality standard, particularly in regard to the observance of health and safety re-quirements.

Use is considered to be appropriate if

• the product is operated in accordance with this technical file and the agreed delivery conditions and technical data, and

• the associated equipment and special tools supplied with it are used solely for the intended purpose and in accordance with the specifications of this technical file.

• the product is used only with the transformer specified in the order.

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2.3 Inappropriate use

Use is considered to be inappropriate if the product is used other than as de-scribed in Appropriate use on page 15.

Maschinenfabrik Reinhausen does not accept liability for damage resulting from unauthorized or inappropriate changes to the product. Inappropriate changes to the product without consultation with Maschinenfabrik Reinhausen can lead to personal injury, damage to property and operational disruption.

2.4 Personnel qualification

The product is designed solely for use in electrical energy systems and facili-ties operated by appropriately trained staff. This staff comprises people who are familiar with the installation, assembly, commissioning and operation of such products.

2.5 Operator duty of care

To prevent accidents, disruptions and damages as well as unacceptable ad-verse effects on the environment, those responsible for transport, installation, operation, maintenance and disposal of the product or parts of the product must ensure the following:

• All warning and hazard notices are complied with.

• Personnel are instructed regularly in all relevant aspects of operational safety, the operating instructions and particularly the safety instructions contained therein.

• Regulations and operating instructions for safe working as well as the re-levant instructions for staff procedures in the case of accidents and fires are kept on hand at all times and are displayed in the workplace where applicable.

• The product is only used when in a sound operational condition and safety equipment in particular is checked regularly for operational reliabil-ity.

• Only replacement parts, lubricants and auxiliary materials which are au-thorized by the manufacturer are used.

• The specified operating conditions and requirements of the installation location are complied with.

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• All necessary devices and personal protective equipment for each activity are made available.

• The prescribed maintenance intervals and the relevant regulations are complied with.

• Fitting, electrical connection and commissioning of the product may only be carried out by qualified and trained personnel in accordance with this technical file.

• The operator must ensure appropriate use of the product.

3 Product description



The voltage regulator serves to keep constant the output voltage of a trans-former with an on-load tap-changer.

To do this, the voltage regulator compares the transformer's measured output voltage (Vactual) with a defined reference voltage (Vreference). The difference be-tween Vactual and Vdesired is the control deviation (dV).

If the control deviation is greater than the specified bandwidth (B%), the vol-tage regulator emits a switching pulse after a defined delay time T1. The switching pulse triggers an on-load tap-changer tap change which corrects the transformer's output voltage.

The voltage regulator parameters can be optimally adjusted to the line voltage behavior to achieve a balanced control response with a small number of on-load tap-changer operations.

The following diagram (on page 20) shows an overview of voltage regulation.



Figure 1 Overview of voltage regulation



3.1 Performance features

The voltage regulator is responsible for controlling tapped transformers.

Apart from control tasks, the voltage regulator provides additional functions such as:

• Integrated protective functions:

Undervoltage and overcurrent blocking

Overvoltage detection with high-speed return

• Line drop compensation

• Z compensation to compensate for voltage fluctuations in the meshed grid

• Digital inputs and outputs which can be individually programmed on-site by the user

• Additional indicators using LEDs outside the display for freely selectable functions

• Display of all measured values such as voltage, current, active power, apparent power or reactive power, cos φ

• Cable connection using modern plug terminals

• Selection of 3 different desired values

• When ordering you can choose between tap position capture using

analog signal 4…20 mA

analog signal via resistor contact series

digital signal via BCD code

• Additional digital inputs and outputs which can be freely parameterized by the customer

• Parallel operation of up to 16 transformers in 2 groups using the methods

Master / Follower

Circulating reactive current minimization



3.2 Relay of the signals via IEC 61850

The following signals are relayed via IEC 61850.

3.2.1 LLN0 - Logical node

LLN0 class Attribute

Name Attribute

Type Explanation M/O/E Remarks

LN0 Logical node zero Name

Data

Common Logical Node Information

Mod ENC Mode M Status-only

Beh INS Behaviour M

Health INS Health M

NamPlt LPL Name plate M

Table 4 IEC 61850 data points (LLNO - Logical node)

3.2.2 LPHD - Physical device

LPHD class Attribute

Name Attribute

Type Explanation M/O/E Remarks

LPHD Physical device information M

Data


PhyNam DPL Physical device name plate M

PhyHealth INS Physical device health M

Proxy SPS Indicates if this LN is a proxy M

Table 5 IEC 61850 data points (LPHD - Physical device)



3.2.3 LPHD - Physical device

ATCC class

Attribute Name

Attribute Type Explanation M/O/E Remarks

ATCC1 AVR


Mod ENC Mode O status-only Beh INS Behaviour M Health INS Health O 1:=OK; 2:=function moni-

toring; 3:=no internal communication or para-meter error

NamPlt LPL Name plate O

Controls

TapChg BSC Change Tap Position C direct-with-normal-securityParOp DPC Parallel Independend M direct-with-normal-securityLTCBlk SPC Block Automatic Control O direct-with-normal-securityCirCur SPC Circulating current (paral-

lel control) E direct-with-normal-security

Master SPC Master mode (parallel control)

E direct-with-normal-security

Follower SPC Follower mode (parallel control)


SICmd1 SPC Serial Interface Command 1






VoltLvl1 SPC Voltage level 1 E direct-with-normal-securityVoltLvl2 SPC Voltage level 2 E direct-with-normal-securityVoltLvl3 SPC Voltage level 3 E direct-with-normal-security

Measured values

CtlV MV Control Voltage M Unit: V Multiplier: none

LodA MV Load Current (transformer secondary current)

O Unit: A Multiplier: none

Status Information

Loc SPS Local operation M Auto SPS Automatic Manual O



OverV SPS Voltage high limit reached E UnderV SPS Voltage low limit reached E OverC SPS Current overload E MotDrv SPS Motor drive running E UInd1 SPS User indication 1 E UInd2 SPS User indication 2 E UInd3 SPS User indication 3 E UInd4 SPS User indication 4 E FuncMon SPS Function monitoring E ParErr SPS Parameter error E

Settings

BndCtr ASG Band center voltage (ac-tual reference)

O Unit: V Multiplier: none

BndWid ASG Band width voltage (as percent of nominal vol-tage, FPF presumed)

O Unit: none Multiplier: c

CtlDlTmms ING Control intentional time delay (FPF presumed, in seconds)

O

LDCR ASG Line drop voltage due to line resistance component (voltage)


LDCX ASG Line drop voltage due to line reactance component (voltage)


BlkLV ASG Control voltage below which auto Lower com-mands blocked (relative)


LimLodA ASG Limit Load Current (LTC Block Load Current, per-centage)


LDC SPG Line Drop Compensation is R and X or Z model (0=R and X, 1=Z com-pensation)

O

TmDlChr SPG Time delay linear or in-verse characteristic (0=lin., 1=inv.)

O

LDCZ SPG Line drop voltage due to line total impedance (percentage of nominal voltage)


TapBlkR ING Tap position of Load Tap Changer where automatic Raise commands are blocked

O

TapBlkL ING Tap position of Load Tap Changer where automatic

O



Lower commands are blocked

Table 6 IEC 61850 data points (ATCC - Voltage regulation)

3.2.4 GGIO1 - IO card inputs

GGIO class

Attribute Name


GGIO1 GPIO IO


Mod ENC Mode O status-only Beh INS Behaviour M Health INS Health O 1:=OK; 3:=no

internal com-munication


Controls

- - - - -

Measured values

- - - - -

Status Information

Ind1 SPS IO X1:31 O Ind2 SPS IO X1:33 O Ind3 SPS IO X1:16 O Ind4 SPS IO X1:17 O Ind5 SPS IO X1:14 O Ind6 SPS IO X1:13 O Ind7 SPS IO X1:11 O Ind8 SPS IO X1:12 O Ind9 SPS IO X1:29 O Ind10 SPS IO X1:28 O

Settings

- - - - - Table 7 IEC 61850 data points (GGIO1 - IO card inputs)



3.2.5 GGIO2 - UC1 card inputs

GGIO class

Attribute Name


GGIO2 GPIO UC1





Controls

- - - - -

Measured values

- - - - -

Status Information

Ind1 SPS UC1 X1:11 O Ind2 SPS UC1 X1:12 O Ind3 SPS UC1 X1:14 O Ind4 SPS UC1 X1:15 O Ind5 SPS UC1 X1:16 O Ind6 SPS UC1 X1:17 O Ind7 SPS UC1 X1:30 O Ind8 SPS UC1 X1:31 O Ind9 SPS UC1 X1:32 O Ind10 SPS UC1 X1:33 O

Settings

- - - - - Table 8 IEC 61850 data points (GGIO2 - UC1 card inputs)



3.2.6 GGIO3 - UC2 card inputs

GGIO class

Attribute Name


GGIO3 GPIO UC2





Controls

- - - - -

Measured values

- - - - -

Status Information


Settings




3.2.7 GGIO4 - UC3 card inputs (optional)

GGIO class

Attribute Name


GGIO4 GPIO UC3





Controls

- - - - -

Measured values

- - - - -

Status Information


Settings




3.3 Operating modes

The voltage regulator can be operated in the following operating modes:

AUTO/MANUAL

In automatic mode (AUTO), the voltage is automatically controlled in accor-dance with the set parameters. The voltage regulator settings cannot be changed in automatic mode.

In manual mode (MANUAL), no automatic control occurs. The motor-drive unit can be controlled via the voltage regulator's operating panel. The voltage reg-ulator settings can be changed.

LOCAL/REMOTE

In remote mode (REMOTE), commands from an external control interface are executed. In this mode, manual operation of the RAISE, LOWER, MANUAL and AUTO keys is disabled.

3.4 Scope of delivery

The following items are included in the delivery:

Scope of delivery

Voltage regulator TAPCON® 260

Technical files

Table 13 Scope of delivery

Please note the following:

1. Use dispatch documents to check that the delivery is complete.

2. Store the parts in a dry place until installation.

The functional range of the product is dependent on the equipment ordered or the product version and not on the content of this technical file.



3.5 Hardware description

The individual assemblies are fitted in a standardized 19-inch plug-in housing. The front panels of the assemblies are secured to the plug-in housing at the top and bottom. An IEC 60603-2 plug connector provides the electrical con-nection.

The assemblies are connected to one another via a data bus and separate direct current (DC) supply. This allows for an upgrade with additional plug-in units and extension cards at a later date.

An LCD graphic display, LEDs and function keys are integrated in the front panel of the product.

Figure 2 Front view of device

1 19-inch plug-in housing (in accordance with DIN 41494 Part 5) 2 Operating panel with display and LEDs 3 Assembly for optional add-ons (e.g. TAPCON 240 LV)



3.5.1 Internal design

The device is controlled by a microregulator and includes isolated optocoupler inputs and floating output relay contacts in addition to the voltage and current transformers.

3.5.2 Communication Interfaces

3.5.2.1 Serial interface

The parameters for the product can be set using a PC. The COM 1 (RS232) serial interface on the front panel is provided for this purpose.

TAPCON®trol software is needed for parameterization. It can be obtained from the Download Center on the Maschinenfabrik Reinhausen website (www.reinhausen.com).

Figure 3 Voltage regulator connection to a PC.

1 PC with TAPCON®-trol software 2 Connection cable with RS232 / USB port 3 Voltage regulator



3.5.2.2 SID card

The SID interface card is used to connect the device to the control station system. The IEC 61850 protocol transfers the data.

The diagram below shows the interfaces available and the operating and dis-play elements on the SID card.

Figure 4 SID card

1 Reset key 2 Status LED 3 Interface for SIC card updates 4 Ethernet RJ45



3.5.2.3 MC1 card

The optional MC1 card is used to convert the SID card's electrical connection into a FH-ST type fiber-optic cable connection. In this case the wave length of the fiber-optic cable is 1300 nm.

Terminals 1 and 2 on the MC1 card should be used to connect the voltage supply. Before commissioning, the TAPCON® 260 connection diagrams should be checked.

The diagram below shows the interfaces available and the operating and dis-play elements on the MC1 card.

Figure 5 MC1 card

1 Terminal 1 and terminal 2 for the voltage supply 2 Switch M/L ON/LINK TST 3 Switch A/N ON/OFF



3.5.2.3.1 Technical Data

Power supply

Voltage 85~ V AC 110 V DC, 220 V DC

Frequency 47...63 Hz Power consumption approx. 6 W Insulation 4242 V DC

Temperature range

Operation 0...40 °C Transportation and storage -20...85 °C

Requirement of the fiber-optic cable

Connection type FH-ST Fiber type Multimode Max. cable length 2 km Wave length 1310 nm Transmitted power (dBm) Max. -14.0; typ. -16.8; min. -19.0

Received power (dBm) Min. rec. -31.8; typ. rec. -34.5; saturation -14.0

Table 14 Technical data for MC1 card

3.5.2.3.2 Voltage supply connection

The voltage is supplied via terminals 1 and 2 on the MC1 card.

Terminal AC DC

1 85...264 V

110/220 V 2 GND

Table 15 Voltage supply connection



3.5.2.3.3 Configuration

The table below lists the positions and descriptions of the switches on the MC1 card.

Switch Description Switch position

MDI MDI-X

When using a crossed or so-called patch cable between SID and MC1 card.

Button not pressed

A/N ON A/N OFF

100 Mbit for TX and RX position in "full duplex" or "half duplex" mode.

Button pressed

M/L ON LNK TST

If "M/L" (“missing link”) is activated, an incorrect fiber-optic cable con-nection also indicates a fault with the electrical cable between the SID and MC1 card.

Button pressed

Table 16 Positions and descriptions of the switches on the MC1 card

3.5.2.3.4 LED status

The MC1 card features various LEDs for displaying the current status. You will find an overview in the table below.

LED Status Color Description

PWR ON ON Green Supply created on MC1 card

FDX ON OFF

Green The connection operates in full duplex mode The connection operates in half duplex mode

LINK ON Green A connection has been established on the port

ACT ON Green Network traffic on port

M/L ON ON OFF

Green MissingLink is activated MissingLink is deactivated, the MC1 card op-erates in link test mode

Table 17 LED status of MC1 card



3.6 Operation and indicator elements

The front of the voltage regulator is split into different areas for operating the device and displaying information. Below you can see an overview of the indi-vidual elements.

Figure 6 Voltage regulator operating panel

1 LEDs 2 Keys for parameterization and configuration 3 COM1 serial interface (RS232) 4 Keys for operating the device 5 Labeling strip for LEDs 6 Setting options for display contrast



3.6.1 Operating concept

The voltage regulator's operating panel is split into an operation control level and a level for parameterization and configuration.

The keys for operating the device are completely separate from those used for parameterization. At the operation control level, key activation is signaled visually by means of LEDs.

The LEDs integrated in the RAISE/LOWER keys are illuminated during the entire tap change operation of the on-load tap-changer if "motor running" is signaled at the status input. This signal must have previously been paramete-rized.

This visual monitoring option simplifies operation of the voltage regulator.

The voltage regulator is equipped with a key lock to protect against uninten-tional operation. To activate or deactivate, press the ESC and F5 keys simul-taneously.



3.6.2 Description of the display

Figure 7 Main screen

1 Status line 2 Measured voltage Vactual 3 Reference voltage Vreference

4 Other measured values (use or to switch between them) 5 Tap position (n-1, n, n+1) 6 Bandwidth (upper and lower limit) 7 Time bar for delay time T1 8 Highlighting for reference voltage 9 Highlighting for measured voltage 10 Remaining delay time T1

In auto and manual mode the measured value display can be set using the

or keys. The following measured values can be displayed:

• Control deviation (dV:)

• Current (I:)



• Apparent power (Powr.:)

• Active power (P:)

• Reactive power (Q:)

• Phase angle (Phase:)

• Cosine (Cos:)

In the case of an event or a setting, the associated comments are displayed in the status line (display text "Messages").



3.6.3 Description of key functions

Key Symbol Function

RAISE

In manual mode the motor-drive unit can be operated directly using the RAISE key. When RAISE is used, the motor-drive unit changes the on-load tap-changer and therefore the step voltage.

LOWER

In manual mode the motor-drive unit can be operated directly using the LOWER key. When LOWER is used, the motor-drive unit changes the on-load tap-changer and therefore the step voltage.

REMOTE

Key without function. "Remote" operating mode is enabled or disabled via input IO-X1:31.

MANUAL

Manual mode. For manual control of the motor-drive unit and parameterization of the voltage regulator.

AUTO

Auto mode. Voltage is controlled automatically.

Arrow keys NEXT/ PREV

In auto and manual mode, the measured value display can be set using the arrow keys. They can also be used to switch between windows in the submenus.

ENTER

Confirms or saves a changed parameter in the parameter menu.

ESC

Pressing the ESC key takes you to the menu level above, in other words, always back one menu level.

MENU

Pressing this key displays the menu selection window.

F1-F5

The function keys are menu selection keys. They are also used to scroll through the menu subgroups and input screens and to highlight decimal points which can be set by the user.

The parameters can only be changed in manual mode, see key in the table above.



3.6.4 Description of LEDs

The voltage regulator has 10 LEDs above the display. These indicate various operating statuses or events.

Figure 8 Description of LEDs

1 Green Operating display 2 Red Overcurrent blocking 3 Red Undervoltage blocking 4 Red Overvoltage blocking 5 Green Parallel operation On 6 Green NORMset On 7 Yellow Freely configurable (LED1) 8 Yellow Freely configurable (LED2) 9 Yellow Freely configurable (LED3) 10 Green/yellow/red Freely configurable (LED4)

4 Packaging, Transport and Storage



4.1 Packaging

4.1.1 Purpose

The packaging is designed to protect the packaged goods both during trans-port and for loading and unloading as well as during periods of storage in such a way that no (detrimental) changes occur. The packaging must protect the goods against permitted transport stresses such as vibration, knocks and moisture (rain, snow, condensation).

The packaging also prevents undesired position changes of the packaged goods within the packaging during storage. The packaged goods must be prepared for shipment before actually being packed so that the goods can be transported safely, economically and in accordance with regulations.

4.1.2 Suitability, structure and production

The goods are packaged in a sturdy cardboard box. This ensures that the shipment remains in the intended transport position and that none of its com-ponents touches the load surface during transport or the floor after it is un-loaded.

The box is designed for a maximum load of 10 kg.

Inlays inside the box stabilize the goods, preventing impermissible changes of position, and protect them from vibration.



4.1.3 Markings

The packaging bears a signature with symbols with instructions for safe transport and correct storage. The following symbols apply to the dispatch (of non-hazardous goods). Adherence to these symbols is mandatory.

Protect against moisture Top Fragile

Figure 9 Shipping pictograms

4.2 Transportation, receipt and handling of shipments

In addition to oscillation and shock stress, jolts must also be expected during transportation. In order to prevent possible damage, avoid dropping, tipping, knocking over and colliding with the product.

If a crate falls from a particular height (e.g. when slings tear) or experiences an unbroken fall, damage must be expected regardless of the weight.

Before acceptance, all deliveries must be checked by the recipient (acknowl-edgement of receipt) for the following:

• Completeness based on the delivery slip

• External damage of any type.

The checks must take place after unloading when the crate can be accessed from all sides.

If external transport damage is detected on receipt of the shipment, proceed as follows:

• Immediately record the transport damage found in the shipping docu-ments and have this countersigned by the carrier.

• In the event of severe damage, total loss or high damage costs, imme-diately notify the sales department at Maschinenfabrik Reinhausen and the relevant insurance company.



• After identifying the damage do not modify the condition of the shipment further and also retain the packaging material, until an inspection decision has been made by the transport company or the insurance company.

• Record the details of the damage immediately together with the carrier involved. This is essential for any claim for damages!

• If possible, photograph damage to packaging and packaged goods. This also applies to signs of corrosion on the packaged goods due to moisture inside the packaging (rain, snow, condensation).

• Name the damaged parts.

When damages are hidden, i.e. damages which are not determined until un-packing after the receipt of the shipment, proceed as follows:

• Make the party responsible for the damage liable as soon as possible by telephone and in writing, and prepare a damage report.

• Observe, in this regard, the time periods applicable to such actions in the respective country. Inquire about these in good time.

With hidden damage, it is very hard to make the transportation company (or other responsible party) liable. Any insurance claims for such damages can only be successful if relevant provisions are expressly included in the insur-ance terms and conditions.

4.3 Storage of shipments

Selection and arrangement of the storage location should meet the following requirements:

• Stored goods are protected against moisture (flooding, water from melt-ing snow and ice), dirt, pests such as rats, mice, termites and so on, and against unauthorized access.

• Store the box on timber beams and planks as a protection against rising damp and for better ventilation.

• Carrying capacity of the ground under the goods is sufficient.

• Entrance and exit paths are kept free.

Check stored goods at regular intervals. Also take appropriate action after storms, heavy rain or snow and so on.

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5 Mounting

5.1 Unpacking

The goods are packaged in a sturdy cardboard box. This ensures that the shipment remains in the intended transport position and that none of its com-ponents touches the load surface during transport or the floor after it is un-loaded.

Inlays inside the box stabilize the goods, preventing impermissible changes of position, and protect them from vibration.

Unpack the voltage regulator as follows:

1. Remove the lid from the lower part of the cardboard box.

The upper inlay contains the accessories supplied, the separate box la-beled "Documentation" contains the device documents.

2. Check scope of supply for accessories.

3. Take the box labeled "Documentation" out of the cardboard box.

4. Remove the upper inlay from the packaging.

5. The voltage regulator in the underlying inlay can now be freely accessed.

6. Remove voltage regulator from the packaging.

The voltage regulator has been unpacked and can be mounted. For mounting, proceed as described in the Mounting section.

5.2 Mounting

After unpacking, the voltage regulator can be mounted.

The voltage regulator's standardized plug-in housing is intended for fitting in a 19-inch control cabinet. We would recommend a design with a pivoting frame to allow easy access to the connections on the rear of the voltage regulator.

The voltage regulator can be mounted in 4 different ways:

• Flush panel mounting 19" housing

• Flush panel mounting for half 19" housing

• Wall mounting for half 19" housing

• Wall mounting with terminal strip for half 19" housing

5 Mounting


5.3 Connection

5.3.1 Cable recommendation for standard connections

When wiring the voltage regulator, comply with the following recommenda-tions from Maschinenfabrik Reinhausen.

Cable Card Terminal Cable type Wire diameter Max. length

Power supply SU X1: 1/2 unshielded 1.5 mm² - Voltage measurement MI/MI1 1/2 shielded 1.5 mm² - Current measurement MI/MI1 5/6/9/10 unshielded 4 mm² - Relay* IO X1:1...10

X1:19...26 unshielded 1.5 mm² -

Relay* UC X1:1...10 unshielded 1.5 mm² - Signal inputs IO X1:11...17

X1:27...34 shielded 1.0 mm² -

Signal inputs UC X1:11...17 X1:27...34

shielded 1.0 mm² -

CAN bus CPU 1...5 shielded 1.0 mm² 2000 m * Observe notices (see below)

Table 18 Recommendation for connection cable

NOTE

Output relay malfunction

Excessive electrical power can prevent the relay contacts from breaking the contact current.

The effect of the cable capacitance of long control lines in control cir-cuits operated with alternating current on the function of the relay con-tacts must be taken into account.

5 Mounting


5.3.2 Cable recommendation for optional connections

Cable Card Terminal Cable type Wire diameter Max. length

AC SU X1/2:1/2 unshielded 1.5 mm² - Analog inputs AD/AD

1 X1:1...3 shielded 1.5 mm² 400 m (<

25 Ω/km) Analog outputs AN/AN

1 X1 shielded 1mm² -

RS-232 CIC X8 shielded 0.25 mm² 25 m RS-485 CIC X9 shielded 0.75 mm² 1000 m (<

50 Ω/km) Ethernet SID

CIC RJ45 X7

shielded, CAT 7

- 100 m

Media converter MC1 Optical fiber with MTRJ-ST duplex patch cable

- -

Table 19 Recommendation for connection cable

5.3.3 Electromagnetic compatibility

The product was developed in compliance with the relevant EMC standards. To ensure compliance with the EMC standards, please note the following points.

5.3.3.1 Wiring requirement of installation site

Note the following when selecting the installation site:

• The system's overvoltage protection must be effective.

• The system's ground connection must comply with all technical regula-tions.

• Separate system parts must be joined by a potential equalization.

• The voltage regulator and its wiring must be at least 10 m away from cir-cuit-breakers, load disconnectors and busbars.

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5.3.3.2 Wiring requirement of operating site

Note the following when wiring the operating site:

• The connection cables must be laid in metallic cable ducts with a ground connection.

• Do not route lines which cause interference (e.g. power lines) and lines susceptible to interference (e.g. signal lines) in the same cable duct.

• Maintain a gap of at least 10 cm between lines causing interference and those susceptible to interference.

• Reserve lines must be grounded at both ends.

• The voltage regulator must never be connected using four-pin collective cables.

Figure 10 Recommended wiring

1 Cable duct for lines causing interference 2 Interference-causing line (e.g. power line) 3 Cable duct for lines susceptible to interference 4 Line susceptible to interference (e.g. signal line)

5 Mounting


• Signal lines must be routed in shielded cables.

• The individual conductors in the cable core (outgoing/return conductors) must be twisted in pairs.

• The shield must be fully (360º) connected to the voltage regulator or a nearby ground rail.

Figure 11 Recommended shielding connection, do not extend the shield to the

grounding point with a wire (pigtail).

NOTE

Reduced effectiveness of the shielding.

Using "pigtails" may considerably reduce the effectiveness of the shielding.

Connect shield to cover all areas.

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5.3.3.3 Wiring requirement in control cabinet

Note the following when wiring the control cabinet:

• The control cabinet for fitting the voltage regulator must be prepared in accordance with EMC requirements:

functional division of control cabinet (physical separation)

constant potential equalization (all metal parts are joined)

line routing in accordance with EMC requirements (separation of lines which cause interference and those susceptible to interference)

optimum shielding (metal housing)

overvoltage protection (lightning protection)

collective grounding (main grounding rail)

cable bushings in accordance with EMC requirements

any protective inductors present must be interconnected

• The voltage regulator's connection cables must be laid in contact with the grounded metal housing or in metallic cable ducts with a ground connec-tion.

• Signal and power/switching lines should be laid in separate cable ducts.

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• The voltage regulator must be grounded at the screw provided using a ground strap (cross-section min. 8 mm²). The voltage regulator's ground connection is a functional ground and serves to dissipate interfering cur-rents.

Figure 12 Ground strap connection

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5.3.3.4 Information about shielding the CAN bus

To ensure that the CAN bus operates correctly, the shielding must be con-nected as detailed for the following variants.

Both voltage regulators share the same potential

To ensure potential equalization between the voltage regulators, all voltage regulators must be connected to the same potential equalization rail.

If the voltage regulators share the same potential, the CAN bus cable's shiel-ding must be connected to both voltage regulators.

Both voltage regulators have different potentials

If the voltage regulators have different potentials, the CAN bus cable's shiel-ding may only be connected to one voltage regulator. Note that the effective-ness of the shielding is less than if connected to both voltage regulators.

NOTE

Damage to the voltage regulator

If the CAN bus cable's shielding is connected to 2 voltage regulators with different potentials, current may flow over the shielding. This current may damage the communication cards.

Ensure that the CAN bus cable's shielding is only connected to one vol-tage regulator if both voltage regulators have different potentials.

If neither connection variant is possible, we would recommend using fiber optic cables. Fiber optic cables decouple the voltage regulators and are not sensitive to electromagnetic interferences (surge and burst).

5 Mounting


Connecting the shielding

The CAN bus cable's shielding must be secured to the intended point on the housing using the cable clips provided (see diagram below).

Figure 13 Securing the CAN bus cable's shielding to the intended point on the

housing

1 Securing the CAN bus cable's shielding

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5.3.4 Connecting lines to the system periphery

Connect the lines, which are to be wired with the voltage regulator, to the system periphery, as shown in the connection diagrams supplied.

WARNING!

Electric shock

Connection mistakes may endanger life

Earth the voltage regulator using the grounding screw attached to the housing.

Pay attention to the phase difference of the secondary terminals for the current and voltage transformers.

Connect the output relays correctly to the motor-drive unit.

NOTE

Damages to the voltage regulator and system periphery

An incorrectly connected voltage regulator can lead to damages in the monitoring system and system periphery.

Prior to commissioning, be sure to check the entire configuration and the measuring and operating voltage.

To obtain a better overview when connecting cables, only use as many leads as necessary.

Use only the specified cables for connection. You will find a cable recom-mendation in the corresponding section (see "Cable recommendation for standard connections" on page 54).

The voltage regulator is fully connected and can be wired up. To carry out the wiring, proceed as described in the Wiring (see "Wiring the voltage regu-lator" on page 63) section.

5 Mounting


5.3.5 Voltage regulator power supply

In the standard design, the voltage regulator is supplied with power via a mul-ti-voltage mains unit. The permissible supply voltage is 93...265 V AC, DC.

Alternatively the voltage regulator can be supplied with a supply mains unit for the 18...36 V DC or 36...72 V DC range.

5.3.6 Wiring the voltage regulator

Wire the voltage regulator as shown in the connection diagram.

WARNING!

Electric shock

Connection mistakes may endanger life

Earth the voltage regulator using the grounding screw attached to the housing.

Pay attention to the phase difference of the secondary terminals for the current and voltage transformers.

Connect the output relays correctly to the motor-drive unit.

NOTE




To obtain a better overview when connecting cables, only use as many leads as necessary.

5 Mounting


5.4 Function check

Carry out a function check to test that the voltage regulator is wired correctly.

Check the following:

• After being switched on, the screen displays the MR logo and then a vol-tage value.

• The green "Operating display" LED in the top left on the voltage regulator lights up.

The voltage regulator can now be configured. The actions required for this are described in the following chapter (see "Commissioning" on page 65).

6 Commissioning


6 Commissioning

Several parameters need to be set and function tests performed before com-missioning the device. These are described in the following chapter.

6.1 Configuration

The relevant settings for commissioning are described in more detail in the following sections.

A detailed description of the functions can be found in the associated operat-ing instructions.

6.1.1 Setting the language

The display language can be set or changed as desired. The following lan-guages are available:

• English

• German

• French

• Spanish

• Italian

• Portuguese

1. > Configuration > General. <00> Language.

2. Press or to select the required language.

3. Press .

The language is set.

6 Commissioning


6.1.2 Selecting the control mode

The voltage regulator can be commissioned in NORMset mode or manually.

Instead of parameterizing the voltage regulator manually, the NORMset mode enables easy and user-friendly commissioning of the voltage regulator with a limited set of parameters. When this mode is selected, the factory settings for voltage regulation are accepted.

NOTE




We recommend using a registration device to record the transformer voltage (actual value) in order to evaluate how the voltage regulator is functioning.

1. Press to select manual mode.

2. Select the NORMset mode.

3. Set desired value 1.

4. Set the primary voltage.

5. Set the secondary voltage.

6. Execute one tap-change operation manually.

When these parameters have been set, the regulator is ready to operate.

The compensation settings cannot be carried out in NORMset mode. The de-sired value will be compared with the measured voltage on the voltage regu-lator.

The actual value display can be set in V (voltage transformer secondary vol-tage) or kV (voltage transformer primary voltage) depending on the setting.

6 Commissioning


6.1.3 Controlling remote tap position indicator with BCD signal

The voltage regulator is equipped with a digital tap position indicator. The in-dicator is controlled as standard with a BCD signal or optionally with an ana-log signal.

The tap position indicator signal must be converted into and transferred in BCD code if the digital remote tap position indicator is to function. The following is necessary in the motor-drive unit:

• a resistor contact series

• a downstream diode matrix

• the corresponding transfer lines between motor-drive unit and voltage regulator

Figure 14 BCD signal transfer between motor-drive unit and voltage regulator

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1 Resistor contact series 2 Diode matrix 3 Transfer line 4 Voltage regulator

Thanks to the diode matrix's linking function, the relevant parallel BCD signal is assigned to every on-load tap-changer operating position which is repro-duced by the motor-drive unit's resistor contact series.

Operating position BCD signal

10 8 4 2 1

1 0 0 0 0 1 2 0 0 0 1 0 3 0 0 0 1 1 4 0 0 1 0 0 5 0 0 1 0 1 6 0 0 1 1 0 7 0 0 1 1 1 8 0 1 0 0 0 9 0 1 0 0 1 10 1 0 0 0 0 11 1 0 1 0 1 12 1 0 0 1 0 13 1 0 0 1 1 14 1 0 1 0 0 15 1 0 1 0 1 16 1 0 1 1 0 17 1 0 1 1 1 18 1 1 0 0 0 19 1 1 0 0 1

Table 20 BCD code table for operating positions

6 Commissioning


6.2 Function tests

Before switching the voltage regulator from manual to automatic mode and therefore activating the automatic voltage regulation for your system, Ma-schinenfabrik Reinhausen recommends carrying out function tests. These function tests are described in the following sections.

HINWEIS

Schäden an Spannungsregler und Anlagenperipherie

Ein unsachgemäß angeschlossener Spannungsregler kann zu Schäden an Spannungsregler und Anlagenperipherie führen.

Kontrollieren Sie vor Inbetriebnahme die Gesamtschaltung sowie Ist- und Betriebsspannung.

We recommend using a registration device to record the transformer voltage (actual value) in order to evaluate how the voltage regulator is functioning.

6.2.1 Function tests for control functions

The on-load tap-changer can only be controlled in manual mode using the

or keys.

1. Establish supply voltage


3. Set transformation ratios for voltage and current transformers and mea-suring set-up.

4. Measure actual voltage and compare with that displayed by the voltage regulator.

5. Press several times to display the operating values for current, output and phase angle.

6. Compare operating values with operating measurement devices.

6 Commissioning


7. To set the desired value, manually control the on-load tap-changer until the desired voltage value is reached.

8. Set desired voltage value Vdesired to this value.

9. Set bandwidth "B %" depending on step voltage.

[±B % ] ≥ 0.6 • Vn-1 − Un

•100 % Vnominal

10. Set switch time delay T1 to 20 s and control response to T1 linearly.

11. Press to raise the on-load tap-changer 1 step.

12. Press to select automatic mode.

After 20 s, the voltage regulator returns the on-load tap-changer to the original operating position.


14. Press to lower the on-load tap-changer 1 step.

15. Activate the time delay T2 and set it to 10s.

16. Press twice to raise the on-load tap-changer 2 steps.


After 20 s, the voltage regulator lowers the on-load tap-changer one step and after another 10 seconds another step.


19. Set the delay times T1 and T2 to the desired values. If T2 is not used, it must be set to "OFF".

We recommend a temporary setting of 100 seconds for the delay time T1 when commissioning the transformer. Depending on the operating condi-tions, you can also specify the delay time following a longer observation period. In this regard, it is useful to register the actual voltage process and the number of tap-change operations per day.

If you wish the voltage regulator to exhibit an integral time response, set an integral control response for time delay T1. The greater the control deviation, the shorter the delay time.

6 Commissioning


6.2.2 Function tests for additional functions

The on-load tap-changer can only be controlled in manual mode using the

or keys.

Checking and setting undervoltage blocking V<


2. Set the undervoltage blocking V< to 85 %.

3. The desired voltage value should be adjusted such that the actual voltage is below the undervoltage blocking V<.

Example: Actual voltage = 100 V, set desired value to a value greater than 100 V / 0.85 = 117 V.

The undervoltage V< LED will light up.

After around 10 seconds the undervoltage message appears and the signaling relay is activated. Contact IO-X1:18/19 opens and contact IO-X1:18/20 closes.


The regulator is blocked and does not therefore issue any control commands.


6. Set the operating values you want for desired value and undervoltage blocking.

Checking and setting overvoltage detection V>


2. Set overvoltage detection V> to 115 %.

3. The desired voltage value should be adjusted such that the actual voltage is above the overvoltage detection V>.

Example: Actual voltage = 100 V, set desired value to a value less than 100 V / 1.15 = 87 V.

The overvoltage V> LED will light up.

6 Commissioning


The overvoltage message appears and the signaling relay is acti-vated. Contact IO-X1:18/19 opens and contact IO-X1:18/20 closes.


The LOWER output relay periodically emits a control command at ap-prox. 1.5 s intervals.


6. Set the operating values you want for desired value and overvoltage de-tection.

Set overcurrent blocking I> (and optionally undercurrent blocking I<).

1. Set overcurrent blocking I> (optionally undercurrent blocking I<) to the desired value.

A function test is not necessary.

Checking and setting activation of desired value 2 and desired value 3

1. Set desired value 2 to the value you want.


3. Apply voltage L+ to terminal X4:17 (X4:17 = default setting).

Desired value 2 is shown on the main screen.

4. Set desired value 3 to the value you want.


6. Apply voltage L+ to terminal X4:18 (X4:18 = default setting).

Desired value 3 is shown on the main screen.


Checking and setting line drop compensation (LDC)

A load current of ≥ 10 % of the nominal transformer current is needed for the following function tests in order to better detect the effects of control devia-tion.

Before you can check Z compensation, you must use the control system (IEC 61850) to check that the value of the LDC attribute in the ATCC node is 0.

6 Commissioning



2. Set parameters for line drop compensation and Z compensation to 0.

3. Select the control deviation (dV) display on the main screen (press if necessary).

The measured voltage must be within the bandwidth.

4. Set line drop compensation "Vr line drop comp." to 20.0V.

The control deviation dV must be negative.

5. Set line drop compensation "Vr line drop comp." to -20.0V.

The control deviation dV must be positive.

If the control deviation appears in the opposite direction, change the polarity of the current transformer.

6. Set line drop compensation "Vr line drop comp." to the operating value you want.

Checking and setting Z compensation

Before you can check Z compensation, you must use the control system (IEC 61850) to check that the value of the LDC attribute in the ATCC node is 1.


2. Set parameters for line drop compensation and Z compensation to 0.

3. Select the control deviation (dV) display on the main screen (press if necessary).

The measured voltage must be within the bandwidth.

4. Set the "Z compensation" and "Z comp. limit value" parameters to 15 %.

The control deviation dV must be negative.

If the control deviation appears in the opposite direction, change the polarity of the current transformer.

5. Set the "Z compensation" and "Z comp. limit value" parameters to the operating values you want.

6 Commissioning


Installation of the voltage regulator is now complete and it is commissioned for simplex mode. During operation, note the operating instructions provided.

If the voltage regulator is to be used for parallel operation, then continue to the next section.

6.2.3 Function tests for parallel operation

To obtain perfect functioning in parallel operation, the voltage regulator must be commissioned in simplex mode. Make sure that the conditions below have been fulfilled.

All voltage regulators are set to the same operating parameters for vol-tage value, sensitivity and delay time T1.

Set the circulating reactive current sensitivity to 0 % and the circulating reactive current blocking to 20 % (see operating instructions) for all vol-tage regulators.

All settings should be undertaken in manual mode.

Give each voltage regulator an individual address on the CAN bus (see operating instructions).

6.2.3.1 Function tests in accordance with the circulating reactive current me-thod

The following sections describe how to carry out function tests for parallel op-eration in accordance with the circulating reactive current method.

6.2.3.1.1 Setting circulating reactive current sensitivity 1. Adjust both transformers in simplex mode to the same voltage by means

of the on-load tap-changer.

When both voltage regulators are in a state of equilibrium, then the value of the control deviation "dV [%]" is smaller than the set band-width "B %" and the time bar is not filled.

2. Connect the transformers in parallel and enable the parallel control.

The two voltage regulators must still be in a state of equilibrium.

The "Parallel operation" LED on the front panel is illuminated.

3. Switch one of the two transformers up one voltage step and the other transformer down one voltage step.

The two voltage regulators must still be in a state of equilibrium.

6 Commissioning


4. Adjust the "circulating reactive current sensitivity" until the result dis-played exceeds the set value for the bandwidth by approx. 0.2 % to 0.3 %.

The value for the result changes in the help text in the last line of the display.

5. Set the value given in step 4 for all voltage regulators in parallel opera-tion.

6. Select the AUTO operating mode for both voltage regulators.

The voltage regulators return the on-load tap-changers to the earlier operating positions.

If the earlier operating positions are not reached, then the "circulating reactive current sensitivity" should be increased.

If the on-load tap-changers pass each other, then the "circulating reactive current sensitivity" should be reduced.

After the parameter "circulating reactive current sensitivity" has been set, con-tinue by setting the circulating reactive current blocking (see "Setting cir-culating reactive current blocking" on page 75).

6.2.3.1.2 Setting circulating reactive current blocking

1. Press on 1 voltage regulator to select manual mode.

2. Using manual control, adjust the relevant motor-drive unit upwards (e.g. 1 - 2 steps) by the maximum permitted difference in operating positions between the parallel operating transformers.

When setting the circulating reactive current blocking in the following process step, wait approx. 2 to 3 seconds between the individual steps.

3. From the set value of 20 %, reduce the circulating reactive current block-ing in 1% intervals until the message "Parallel operation error: circulating reactive current limit exceeded" appears.

The LED lights up when the circulating reactive current blocking limit is reached.

The voltage regulators block any further regulation.

After 30 seconds (time adjustable) the signaling relay X5:12 (X5:12 = default setting) responds.

4. Increase the circulating reactive current blocking again until the message "Parallel operation error: circulating reactive current limit exceeded" dis-appears.

6 Commissioning



The motor-drive unit is automatically returned to the original operating position.

6. Set the value determined for the circulating reactive current blocking on the other regulators as well.

If one or all voltage regulators indicate "Parallel operation error: circulating reactive current limit exceeded" although the control inputs are correctly connected for all the voltage regulators, then all the voltage regulators block. This could be due to various causes. Further information is given in the chapter "Troubleshooting" in the operating instructions.

6.2.3.2 Function tests in accordance with tap synchronization (mas-ter/follower/auto)

The following sections describe how to carry out function tests for parallel op-eration in accordance with the master/follower tap synchronization method.

Before starting the function test carry out the following steps:

Select the relevant method and assign the master function to a voltage regulator.

Assign the follower function to the other voltage regulators.

Check the tap position display. The master and follower must be in the same step.

The function test can now be started.

1. Set the tapping direction.

2. Set master to manual mode and proceed manually.

3. Set follower to automatic mode.

The follower must follow the master control command.

4. Set master to AUTO mode.

5. Set follower to MANUAL mode.

6. Change follower by one step manually.

After expiry of the set delay time for parallel operation errors, the error message "Tap difference to follower" appears on the master.

7. Set follower to AUTO mode.

6 Commissioning


The follower must follow the master control command.

8. Set master to AUTO mode.

9. Set follower to MANUAL mode.

10. Change the follower manually by the maximum permitted tap difference +1.

After expiry of the set delay time for parallel operation errors, the error message "Parallel operation error: permitted tap difference to master exceeded" appears on the follower AND the error message "Parallel operation error: tap difference to follower" appears on the master.

11. Set follower to AUTO mode.

There is no response. All regulators remain blocked.

12. Set master and follower to MANUAL mode and adjust manually to the target step.

Since, in parallel operation, the tap positions of the transformers which are running in parallel with one another are compared using the "automatic tap synchronization" method, it is absolutely essential that these transformers share the same position designation and that the "Raise" or "Lower" signals produce the same voltage change in all transformers.

If instances arise where the follower voltage regulator(s) switch(es) in the op-posite direction from the master voltage regulator step change, then the set-ting for the follower parameter must be changed from "Default" to "Swapped".

The voltage regulator is now completely installed and commissioned.

During operation, note the operating instructions provided.

7 Functions and settings



This chapter describes all the functions and setting options for the voltage regulator. The setting values appear in the relevant sections or in summary in a table. The chapters are laid out following the menu structure of the device.

The voltage regulator functions are set using the keys on the device. Settings can only be carried out in manual mode (MANUAL) with the key lock deacti-vated. The procedure for activating or deactivating the key lock is described in the following sections.

7.1 Key lock

The voltage regulator is equipped with a key lock to protect against uninten-tional operation. Parameters can only be carried out in manual mode (MA-NUAL) with a deactivated key lock.

7.1.1 Activating key lock

To activate the key lock, proceed as follows:

Press and at the same time.

A confirmation (see diagram) appears on screen for a short period. The key lock is activated. Pa-rameters can no longer be entered.

7.1.2 Deactivating key lock

To deactivate the key lock, proceed as follows:

Press and at the same time.

The key lock is deactivated. Parameters can be entered.



7.2 NORMset

As an alternative to parameterizing the voltage regulator manually, the NORMset mode enables easy commissioning of the voltage regulator with a limited set of parameters. When this mode is selected, the factory settings required for voltage regulation are adopted.

When commissioning the voltage regulator in NORMset mode, the following parameters must be set:

• Desired value 1

• Primary voltage

• Secondary voltage

When these 3 parameters have been set, the voltage regulator is ready to operate.

Once NORMset has been activated, no additional settings can be undertaken for line drop compensation.

The desired value is compared with the measured voltage present on the vol-tage regulator depending on the unit defined, i.e. V (secondary voltage of vol-tage transformer) or kV (primary voltage of voltage transformer). If additional information on current and phase angle are required, connect the current transformer and adjust the current connection data (see "Setting the current transformer connection" on page 133).

After the desired voltage level and voltage transformer data have been en-tered, if NORMset is activated the voltage regulator checks the grid conditions and automatically adapts other settings, composed partly of predefined pa-rameters and default values.

All other parameters required for simple voltage regulation are predefined in the factory.

The procedure for activating or deactivating NORMset mode is described in the following sections.

A manual tap-change operation is required once NORMset has been acti-vated. This is how the voltage regulator determines the bandwidth required. If the transformer has been switched off, another manual tap-change opera-tion is required.



If NORMset is activated, the bandwidth and delay time settings will be un-dertaken automatically by the voltage regulator. The following control parameters must be set in NORMset mode: • Desired value 1

• Primary voltage

• Secondary voltage

The following parameters are not set automatically using the NORMset mode: • Undervoltage limit

• Overvoltage limit

• Undercurrent limit

• Overcurrent limit

If required, these parameters must be set manually.

1. > Normset. <00> Normset activation.

2. To activate Normset, press or to select "On" .

3. Press .

4. Press or to perform a manual tap-change operation.

The LED for the NORMset operating display lights up. The NORMset mode is activated.



7.2.1 Entering NORMset desired value 1

Desired values set in kV apply to the primary voltage of the connected voltage transformer. Desired values set in V apply to the secondary voltage of the connected voltage transformer. All transformer data (see "Transformer da-ta" on page 129) must be entered correctly.

Settings in kV are only possible if you have previously entered the para-meters for primary and secondary voltage.

Setting range Step size Factory setting

49 V – 140 V 0.1 V 100 V Table 21 Setting range for NORMset desired value 1 in V


0 kV...9999 kV 0 kV...999.9 kV 0 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

1 kV

Table 22 Setting range for NORMset desired value 1 in kV

To set desired voltage value 1, proceed as follows:

1. > Normset > 1x . <01> Desired value 1.

2. Press to highlight a digit. The digit position you want is highlighted

and the value can be changed.

3. Press to increase the value or to reduce it.

4. Press .

Desired value 1 is set.



7.2.2 Setting the primary voltage

In general, the regulator only indicates the secondary voltage in V if you have not set the primary voltage. The primary voltage is only displayed if parameter "Display kV / V" has been set to kV (see "Setting the voltage display kV/V" on page 141).

Example:

Primary voltage Secondary voltage kV or V Display

No parameterization 100 V V 100 V 110 kV 100 V kV 110 kV

Table 23 Example of displayed values in V or kV


0 kV...9999 kV 0 kV...999.9 kV 0 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

0 kV

Table 24 Setting range for primary voltage in kV

To set the primary voltage, proceed as follows:

1. > Normset > 2x . <02> Primary voltage.

2. Press to highlight the decimal place. The decimal place is defined and the value

can be changed.




5. Press .

The primary voltage is set.



7.2.3 Setting the secondary voltage

The secondary voltage is displayed and entered in V.


57 V – 125 V 0.1 V 100 V Table 25 Setting range for secondary voltage in V

To set the secondary voltage, proceed as follows:

1. > Normset > 3x . <03> Secondary voltage.

2. If necessary Press to highlight the de-cimal place. The decimal place is defined and the value

can be changed.




5. Press .

The secondary voltage is set.



7.3 Parameters

This section describes all the functions, parameters and recommended setting ranges for voltage regulation with the voltage regulator. To make it easier for you to find specific parameters, the description refers to subgroups of individ-ual parameters with related functions.

7.3.1 Setting control parameters

This submenu contains all the parameters required for the control function.

• Desired values 1/2/3

• Bandwidth

• Delay time T1

• Control response T1

• Delay time T2

The desired voltage level, Vtarget is specified as a fixed value. The desired val-ue can be entered using the voltage regulator user interface, both in the NORMset mode subgroup and in the parameter mode subgroup.

In addition, the voltage regulator also allows you to change the desired value during operation if this is necessary.

The desired values are activated using binary inputs. Up to 3 desired values can be entered in parameter mode:

• Desired value 1

• Desired value 2

• Desired value 3

Desired value 1 is the default desired value.Desired values 2 or 3 are acti-vated if there is a continuous signal at the pre-assigned IO-X1/17 or IO-X1/16 inputs (factory preset).If there is a signal at both inputs at the same time, de-sired value 2 is active.

The following sections describe how to set the desired values.



7.3.2 Setting desired value 1

Desired values set in kV apply to the primary voltage of the voltage transfor-mer. Desired values set in V apply to the secondary voltage of the voltage transformer. The transformer data (see "Transformer data" on page 129) must be entered correctly.


49 V – 140 V 0.1 V 100 V Table 26 Setting range for desired value 1 in V


0.1 kV...999.9 kV 0.1 kV...99.9 kV 0.1 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

1kV

Table 27 Setting range for desired voltage value 1 in kV


1. > Parameter > Control pa-rameter. <00> Desired value 1.

2. If you have already entered the transformer

data, press to select the unit you want: "V" or "kV".




5. Press .





Desired value 2 is activated if there is a continuous signal at IO X1/17 or IO-X1/16 provided you previously programmed the IOs accordingly (on page 146).


49 V – 140 V 1 V 100 V Table 28 Setting range for desired value 2 in V


0.1 kV...999.9 kV 0.1 kV...999.9 kV 0.1 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

1 kV



1. > Parameter > Control pa-

rameter > 1x . <01> Desired value 2





4. Press to increase the value or to reduce it..

5. Press .





Desired value 3 is activated if there is a continuous signal at IO X1/17 or IO-X1/16 provided you previously programmed the IOs accordingly (see "Configuring control inputs IO1-X1:33/31" on page 145).


49 V – 140 V 1 V 100 V Table 30 Setting range for desired value 3 in V


0 kV...999.9 kV 0 kV...999.9 kV 0 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

1 kV


To set desired value 3, proceed as follows:

1. > Parameter > Control pa-rameter.

> 2x . <02> Desired value 3.






5. Press .




7.3.5 Bandwidth

The bandwidth is the permitted deviation of the measured voltage from the selected desired value. If the measured voltage is inside the bandwidth, then no control commands are issued to the on-load tap-changer.

If the measured voltage deviates from the specified bandwidth, a tap-change command occurs after the set delay time T1. The on-load tap-changer carries out a tap-change in a positive or negative direction.

If the level is persistently above or below the bandwidth, the "Function moni-toring" alarm message is triggered after 15 minutes. The corresponding relay is also activated. The alarm message is only reset when the measured vol-tage returns to within the set.

Figure 15 Measured voltage and bandwidth over time

1 ΔVstep: Step voltage 2 Vdesired: Desired value in V 3 B%: Bandwidth range 4 T1: Set delay time 5 Vactual: Measured voltage a Vactual outside the bandwidth, T1 starts b Vactual within bandwidth before T1 lapses, no tap-change operation c Vactual outside the bandwidth, T1 starts d Vactual outside B% before T1 lapses, tap-change operation initiated e Tap-change operation complete, Vactual within the bandwidth



7.3.5.1 Visual display

The deviation from the set bandwidth is shown visually in the voltage regulator display. The measured voltage mark shows whether the measured voltage is above, inside or below the set bandwidth. Progress of delay time T1 is indi-cated by the gradual filling of the time bar in the voltage regulator's display. The seconds display above this indicates the remaining delay time T1.

Figure 16 Visual display of deviation from desired value

1 Bandwidth (upper and lower limit) 2 Time bar for delay time T1 3 Desired voltage value 4 Measured voltage 5 Remaining delay time T1

7.3.5.2 Determining bandwidth

In order to be able to set the value correctly, the transformer's step voltage and nominal voltage must be known.

The following value is recommended for the bandwidth "B %":

[±B % ] ≥ 0.6 • Vn-1 − Un

•100 % Vnominal



where:

Vn-1: Step voltage of position n-1

Vn: Step voltage of position n

Vnominal Nominal voltage

The bandwidth must be selected in such a way that the output voltage of the transformer (Vactual) returns to within the specified tolerance range after the tap change. If too small a bandwidth is defined, the output voltage exceeds the band-width selected and the voltage regulator must immediately issue a tap-change command in the opposite direction. If a very large bandwidth is selected, this results in a major control devia-tion.

Sample calculation

The following transformer parameters are used by way of example for deter-mining the recommended bandwidth:

Nominal voltage: Vnominal = 11000 V Step voltage of position 4: Vstep4 = 11275 V Step voltage of position 5: Vstep5 = 11000 V

Following the recommendation for calculating bandwidth, our example results in:

[±B % ]≥0.6 • UStep4−UStep5

•100 % Vnominal

[±B % ]≥0.6 • 11275 V−11000 V

•100 % 11000 V

[±B % ]≥1.5 %



7.3.5.3 Setting the bandwidth


0.5 %...9 % 0.01 %...1 % 1 % Table 32 Setting range for bandwidth

The calculated bandwidth is entered as follows:


rameter > 3x . <03> Bandwidth.




4. Press .

The bandwidth is set.



7.3.6 Setting delay time T1

Delay time T1 delays the issuing of a tap-change command for a defined pe-riod. This function prevents unnecessary tap-change operations if the toler-ance bandwidth is exited for a short time.

If the current measured voltage leaves the bandwidth, delay time T1 starts. This is shown visually in the display by the time bar filling and the remaining time being indicated.

If the control deviation is still present after the delay time, a tap-change com-mand is issued.

If during the delay time the measured voltage returns to within the bandwidth range, the delay time still running is counted down in seconds starting from the time already expired. The absolute time display disappears from the dis-play. The time bar graph is shown hatched and shrinks steadily. If the meas-ured voltage exceeds the set bandwidth once more whilst the time is not displayed, then the time delay is restarted from the remaining time.

The advantage of counting the time back down is that, if the bandwidth is ex-ceeded frequently, the voltage regulator does not start counting again at 0 seconds, but uses the time already elapsed as the starting point for beginning the next delay time.




0 s...600 s 1 s 40 s Table 33 Setting range for delay time T1

To set the delay time T1, proceed as follows:


rameter > 4x . <04> Delay time T1.



3. Press to increase the time or to reduce it.

4. Press .

The delay time T1 is set.



7.3.7 Setting control response T1

The delay time T1 can be set to linear or integral. With "Linear time" the vol-tage regulator responds with a constant delay time which is independent of the control deviation.

If "Integral time" is set, the delay time decreases depending on the ratio of current control deviation to set bandwidth B, to a minimum of 1 second. The greater the control deviation (ΔV) the shorter the response time. This means that the voltage regulator reacts faster to unexpectedly large voltage changes in the grid. The regulation accuracy therefore increases at the expense of switching frequency (see diagram).

Figure 17 ∆V/B voltage change

1 "Delay time T1" parameter

ΔV/B: Control deviation "ΔV" as % of desired value as ratio to the set band-width "B" as % of desired value.



To set the control response T1, proceed as follows:


rameter > 5x . <05> Control response T1.

2. Press to select "T1 linear" or to select "T1 integral".

3. Press .

The control response T1 is set.

7.3.8 Activating/deactivating delay time T2

The delay time T2 only takes effect if more than one tap-change operation is required for returning the voltage to within the specified bandwidth.With integral control response in particular, the time until release of an output pulse would increase after each tap change process.

The first output pulse occurs after the set delay time T1. After the set delay time T2 has elapsed, additional pulses occur. These are needed to correct the existing control deviation.

To activate/deactivate the delay time T2, proceed as follows:


rameters > 6x . <06> T2 activation.

2. Press or to activate/deactivate T2.

3. Press .

The delay time T2 is activated/deactivated.



7.3.9 Setting delay time T2

The following section describes how to set the delay time T2.


1 s...10 s 0.1 s 10 s Table 34 Setting range for delay time T2

In general, the delay time T2 should be greater than the pulse duration and the maximum operating time of the motor-drive unit. This applies to continuous settings in particular.

To set the delay time T2, proceed as follows:


rameter > 7x . <07> Delay time T2.


3. Press .

The delay time T2 is set.

7.3.10 Limit values

This subgroup contains all the parameters required for monitoring the limit values. The limit values can be set as percentages or absolute values.

For the "undervoltage" and "overvoltage" parameters, the inputs basically re-late to the specified desired value. For "overcurrent" and "undercurrent", the values relate to the set rated current of the current transformer or the selected current transformer connection, respectively.



7.3.10.1 Activating/deactivating absolute limit values

When you activate absolute limit values, these are used in place of those re-lating to the desired value. The following settings are possible:

Setting Effect

Off The percentage values entered are used On The absolute values entered are used

Table 35 Activation/deactivation of absolute limit values

To activate/deactivate the absolute limit values, proceed as follows:

1. > Parameter > Limit values. <00> Absolute limit values.

2. Press for "On" setting or for "Off" setting.

3. Press .

The absolute limit value is activated/deactivated.

7.3.10.2 Setting the undervoltage V< limit value

Undervoltage blocking prevents tap-change operations if there is a power cut. The voltage regulator output pulses are blocked and the red "V<" LED lights up as soon as the measured voltage falls below the set blocking value.



If the measured voltage falls below the set limit value, the signaling relay is permanently activated after around 10 seconds (IO-X1/18, IO-X1/19, IO-X1/20 contacts). If the measured voltage and/or supply voltage fails (< 30 V), the signaling relay is not activated. This function is a default setting and you can deactivate it (see "Activating/deactivating signal for undervoltage V< below 30 V" on page 106).

The limit value for undervoltage blocking is set as a percentage of the set de-sired value.


60 %...100 % of desired value 1 % 90 %

Table 36 Setting range for undervoltage blocking V< as percentage

To set the overvoltage blocking, proceed as follows:

1. > Parameter > Limit values

> 1x . <01> Undervoltage V< [%].


3. Press .

The undervoltage blocking V< is set.



You can also set the "Undervoltage blocking" function as an absolute value. To do this, you must have also activated the "On" selection under "Absolute limit values".

This setting is made as an absolute value in unit V. This value relates to the secondary transformer voltage.


34 V – 160 V 0.1 V 90 V Table 37 Setting range for undervoltage blocking V< in V, absolute values

If you use the key to change the display to unit kV, the value relates to the primary transformer voltage.


34 %...160 % of the primary transformer

voltage 1 kV 1 kV

Table 38 Setting range for undervoltage blocking V<, absolute values in kV

This, for example, results in a setting range of 17 kV to 80 kV at a primary transformer voltage of 50 kV.

To set the overvoltage blocking, proceed as follows:


> 2x . <02> Undervoltage V< [V].

2. If necessary press to select the unit you want, "V" or "kV".


4. Press .

The undervoltage blocking V< is set.



7.3.10.3 Setting the V> overvoltage limit value [%]

When the overvoltage detection responds, the on-load tap-changer is acti-vated by periodical control of the motor-drive unit until the measured voltage is less than the set overvoltage limit value. This is controlled by the output re-lay for the "Lower" switching direction at the intervals dictated by the set switching pulse duration without the set switching delay becoming active. At the same time, the "V>" LED is illuminated and a signaling relay is activated (IO-X1-X1/19, IO-X1/20 contacts) as long as there is overvoltage. You can set the interval for LOWER (see "Setting the switching pulse time" on page 142).

Instead of the high-speed return control function, the control can also be blocked if the overvoltage value is exceeded.

The V> overvoltage limit is entered as a percentage of the set desired value.


100 %...140 % of desired value

1 % 110 %

Table 39 Setting range for V> overvoltage limit as percentage

To set overvoltage blocking, proceed as follows:


> 3x . <03> Overvoltage V> [%].


3. Press .

V> overvoltage blocking is set.



7.3.10.4 Setting the V> overvoltage limit value as an absolute value

You can also set the "Overvoltage blocking" function as an absolute value. To do this, you must have also activated the "On" selection under "Absolute limit values".

This setting is made as an absolute value in unit V. This value relates to the secondary transformer voltage.


100 V – 160 V 0.1 V 110 V Table 40 Setting range for overvoltage blocking V> in V, absolute value

If you use the key to change the display to unit kV, this value relates to the primary transformer voltage.


100 %...160 % of the primary transformer

voltage 1 kV 1 kV

Table 41 Setting range for overvoltage blocking V> in kV, absolute value

This, for example, results in a setting range of 50 kV to 80 kV at a primary transformer voltage of 50 kV.

To set overvoltage blocking, proceed as follows:


> 4x . <04> Overvoltage V> [V].



4. Press .

V> overvoltage blocking is set.



7.3.10.5 Setting limit value I> overcurrent

The I> overcurrent blocking prevents tap-change operations during load cur-rents which are higher than the selected limit value (e.g. overload).

As soon as the measured current exceeds the set blocking value, control is blocked. The "I>" LED lights up and the relevant signaling relay is perma-nently activated (IO-X1/18, IO-X1/19, IO-X1/20 contacts).

The value is entered as a percentage. You can use the key to change the input from a percentage [%] to absolute values in amps [A]. In both cases, the value relates to the primary transformer current.


50 %...210 % 1 % 110 % Table 42 Setting range for I> overcurrent blocking as %


50 %...210 % of primary transformer current 1 A 1 A

Table 43 Setting range for I> overcurrent blocking in A

This, for example, results in a setting range of 50 A to 210 A at a primary transformer current of 100 A.

To set the limit value I> overcurrent for overcurrent blocking, proceed as fol-lows:


> 5x . <05> Overcurrent I>.

2. If necessary press to select the unit you want: "%" or "A".


4. Press .

I> overcurrent blocking is set.



7.3.10.6 Activating/deactivating function monitoring

If the measured value leaves the current bandwidth (desired val-ue+/- bandwidth) for more than 15 minutes, the function monitoring relay is activated. This results in an alarm message on the display which is only reset when the measured value returns to within the current bandwidth.

If the measured voltage is below 30 V, then the measured value is outside the bandwidth and the relevant relay is also activated after 15 minutes. You can deactivate this function if you want to avoid a function monitoring message when the transformer is switched off:


> 6x . <11> Function monitoring.

2. Press or to activate (On)/deactivate (Off) function monitoring.

3. Press .

The function monitoring is activated/deactivated for voltages <30 V.



7.3.10.7 Setting signaling delay time for undervoltage V<

To prevent the undervoltage relay from activating as soon as a short-lived voltage dip occurs, a delay time can be set for this signal. The undervoltage LED will light up immediately in any case.


0 s...20 s 0.1 s 10 s Table 44 Setting range for undervoltage V< delay for signal

To set the delay time for this signal, proceed as follows:


> 7x . <12> Delay time V<.




4. Press .

The signaling delay time for undervoltage V< is set.



7.3.10.8 Activating/deactivating undervoltage blocking V<

The undervoltage blocking can either be activated or deactivated. If blocking is deactivated and the value falls below that specified for blocking, then a signal appears via the relay and LED. Control is not however blocked.

To activate/deactivate the undervoltage blocking V<, proceed as follows:


> 8x . <15> Blocking V<.

2. Press or to to activate/deactivate undervoltage blocking.

3. Press .

Undervoltage blocking is activated/deactivated.

7.3.10.9 Activating/deactivating signal for undervoltage V< below 30 V

Disabling the "undervoltage V<" signal can be useful in order to avoid error signals when the transformer is switched off (measured voltage V< 30 V at the voltage regulator).

To disable the signal for undervoltage V<, proceed as follows:


> 9x . <18> V< also below 30 V.

2. Press or to activate (on)/deactivate (Off) the signal for undervoltage V<.

3. Press .

The signal for undervoltage V< is acti-vated/deactivated.



7.3.11 Abnormal control response

You can use this function to set how the voltage regulator responds during an abnormal control response. To do this, the voltage regulator monitors, in au-tomatic mode, the number of consecutive RAISE operations within a defined time period.

If the maximum permissible number of tap-change operations is exceeded, the voltage regulator blocks any more RAISE operations for a time that you can set. As an option, MR can parameterize the voltage regulator such that a signal is output via a relay during the blocking time.

An example of how the voltage regulator responds in this case is shown be-low.

Figure 18 Example of normal control response (left) and abnormal control re-

sponse (right)

1 Controller blocked 2 Defined time period for monitoring RAISE operations T1 Delay time T1 B% Bandwidth B%



7.3.11.1 Setting maximum number of RAISE operations

This parameter is used to define the maximum permissible number of con-secutive RAISE operations.


0...20 1 0 Table 45 Setting range for maximum number of RAISE operations

Setting 0 deactivates the function for monitoring abnormal control response. There is no limit to the maximum number of consecutive RAISE operations.

To set the maximum number of RAISE operations, proceed as follows:


> 10x . <24> Max. operations in time.


3. Press .

The maximum number of RAISE operations is set.

7.3.11.2 Setting time window for monitoring RAISE operations

This parameter is used to define the time window for monitoring the number of consecutive RAISE operations.


0...1800 s 1 s 120 s Table 46 Setting range for time period for monitoring RAISE operations



To set the time window, proceed as follows:


> 11x . <25> Time window for steps.


3. Press .

The time window is set.

7.3.11.3 Setting maximum number of RAISE operations

This parameter is used to define the blocking time after the maximum per-missible number of consecutive RAISE operations has been reached. Any further RAISE command during this blocking time is blocked.


0...600 s 1 s 300 s Table 47 Setting range for blocking time after the maximum permissible num-

ber of RAISE operations has been reached

To set the blocking time, proceed as follows:


> 12x . <26> T block max. number of steps


3. Press .

The blocking time is set.



7.3.11.4 Setting counting behavior

This parameter can be used to define the counting behavior. All RAISE opera-tions within the defined time period are counted as standard, even if they have been interrupted by a LOWER operation. Alternatively, you can stipulate that the counter is set to 0 during a LOWER operation.

Parameters Function

Off LOWER operations do not affect the counting method. On The counter is reset during a LOWER operation.

Table 48 Setting range for blocking time after the maximum permissible num-ber of RAISE operations has been reached

To set the blocking time, proceed as follows:


> 13x . <27> Lower -> Raise counter 0.

2. Press or to set the option you want.

3. Press .

The required option is selected.



7.3.12 Compensation

The quality of the energy supply depends not only on the voltage at the bus-bar of the supply transformer (measurement value V), but also the voltage di-rectly at the equipment.

In some cases the line impedance - of the cables or overhead lines - needs to be taken into account for voltage regulation. A significant (load-dependent) voltage drop can occur in these cables. This voltage drop is dependent on the following factors at the consumer:

• Impedance (apparent resistance)

• Cable

• Electrical current

• Phase angle φ

The voltage regulator has two possible ways of balancing a load-related vol-tage drop between the transformer and the consumer:

• Line drop compensation

• Z compensation

Comparison between line drop compensation and Z Compensation

Line drop compensation (vectorial compensation):

• provides more precise compensation of cable voltage drops

• requires several parameters

• requires full knowledge of the cable data

Z compensation:

• can be used with minor changes in the phase angle cos φ

• is not dependent on phase angle cos φ

• is simple to set

• can also be used in meshed grids

Both methods are described in more detail in the following sections.



7.3.12.1 Line drop compensation

Line drop compensation requires exact cable data. Line voltage drops can be compensated very accurately using LDC.

To set the line drop compensation correctly, you have to calculate the ohmic and inductive voltage drop, in relation to the secondary side of the voltage transformer in V. The existing measuring circuit also has to be set correctly.

The setting values must first be calculated in order to enter the correct values for the ohmic and inductive voltage drops.

Sample calculation:

Vr LDC setting for ohmic line voltage drop in V Vx LDC setting for inductive line voltage drop in V

IN Nominal current in A of selected current transformer connection on voltage regulator: 0.2 A; 1 A or 5 A

kCT Current transformer ratio; for example 200 A/5 A kVT Voltage transformer ratio r Ohmic line resistance in Ω/km per phase x Inductive line resistance in Ω/km per phase L Length of line in km

Formula for calculating the ohmic voltage drop:

Formula for calculating the inductive voltage drop:



Calculation:



If the active and reactive voltage drops "Vr" and "Vx" are set correctly, then the voltage at the line end remains constant irrespective of the load. Figure name

Table 49 Line drop equivalent circuit

Table 50 Line drop compensation

The settings for the compensation methods are described in more detail be-low:

7.3.12.2 Setting the ohmic voltage drop Vr

The calculated ohmic voltage drop must be entered in the "Vr" display.

The compensation effect can be rotated by 180° in the display using a plus or minus sign.

Line drop compensation and Z compensation can be used at the same time. So make sure that you set the parameter for the method of compen-sation not used to "0".




-25 V...25 V 0.1 V 0 V Table 51 Setting range for ohmic voltage drop Vr

To set the ohmic voltage drop Vr, proceed as follows:

1. > Parameter > Compensa-tion. <00> Line drop compensation Vr.




4. Press .

The ohmic voltage drop Vr is set.

7.3.12.3 Setting the inductive voltage drop Vx

The calculated inductive voltage drop must be entered in the "Vx" display.

The compensation effect can be rotated by 180° in the display using a plus or minus sign.

If you do not want to use a method of compensation, a "0" must be entered for both methods.

Line drop compensation and Z compensation can be used at the same time. So make sure that you set the parameter for the method of compen-sation not used to "0".




-25 V...25 V 0.1 V 0 V Table 52 Setting range for inductive voltage drop Vx

To set the inductive voltage drop Vx, proceed as follows:

1. > Parameter > Compensa-

tion > 1x . <01> I> Line drop compensation Vx.




4. Press .

The inductive voltage drop Vx is set.

7.3.12.4 Setting Z compensation

Z compensation can be used for example for minor changes to the phase an-gle cos φ. It can also be used for meshed grids. Z compensation is not how-ever dependent on cos φ.

To correctly set the parameters, you need to calculate the voltage increase (ΔV) taking the current into account.

Sample calculation:

ΔV Z compensation setting as % VTr Transformer voltage with current I

VLa Voltage on line end with current I and on-load tap-changer in same operating position

I Load current in A

IN Nominal current in A of selected current transformer connection on voltage regulator: 0.2 A, 1 A or 5 A

kCT Current transformer ratio; for example 200 A or 5 A



Formula for determining the voltage increase ΔV:

Calculation:

The calculated voltage increase percentage relates to the desired voltage value and must be entered in this display.

If you do not want to use a method of compensation, a "0" must be entered for both methods.





0.1 % 0 %

Table 53 Setting range for Z compensation

To set the Z compensation, proceed as follows:


tion > 2x . <02> I> Z compensation.


3. Press .

The Z compensation is set.



7.3.12.5 Setting the Z compensation limit value ΔV

If Z compensation is activated, you must limit the maximum permissible in-crease in voltage, with reference to the desired value, to avoid excessive vol-tage on the transformer.



0.1 % 0 %

Table 54 Setting range for Z compensation limit value ΔV

To set the limit value ΔV, proceed as follows:


tion > 3x . <03> Z compensation limit value.


3. Press . The limit value ΔV is set.



7.3.13 Cross-monitoring

Cross-monitoring permits the reciprocal monitoring of 2 voltage regulators.

The voltage regulator detects potential errors in the following parts and re-ports them via the standard self-monitoring:

• Mains unit

• Processor error

• No program

Should an error occur, this is signaled via the status contact. The reciprocal cross-monitoring can therefore only be restricted to the following:

No measured value and/or measurement card error

With voltage regulators which check one another, the measured value of the other voltage regulator is supplied via second measurement inputs.

The measured values calculated accordingly for the voltage regulators are obtained via the CAN bus and compared with the original measured values. If the measured values deviate, the "Measured value error" signal is issued via an output relay.

The second measurement inputs should be considered separately from the first ones. This allows voltage regulators from different voltage levels to be checked.

Checking voltage regulation within definable upper and lower limits

A measured voltage is supplied to a voltage regulator via a second mea-surement input. In addition to this measured value, a separate desired value, a lower limit and an upper limit and a time delay can be set. If one of these limits is exceeded, a signal is issued via an output relay after the set time. If wired accordingly, relay contacts can block the raise/lower pulse to the mo-tor-drive unit.

Regulation of individual voltage regulators is not affected by limit value moni-toring.

In order to ensure communication between the monitoring voltage regulators via the CAN bus interface, the CAN address must be entered. "1" must be as-signed as the CAN address for the first voltage regulator and "2" for the second one.



7.3.13.1 Setting V-desired for regulator 2

You can set the desired value of the voltage regulator to be monitored as an absolute value in V or kV units under this menu item.

If you use the key to change the display, this value relates to the pri-mary transformer voltage. If you change the display to V, this relates to the secondary voltage.


49 V – 140 V 0.1 V 100 V Table 55 Setting range for desired value for regulator 2 (V)

To enter the desired value for voltage regulator 2, proceed as follows:

1. > Parameter > Cross-monitoring. <00> Vdesiredregulator 2.


3. Press .

The desired value for voltage regulator 2 is set.



7.3.13.2 Setting undervoltage blocking V< (%) for regulator 2

You can set the limit value for undervoltage blocking of the voltage regulator to be monitored as an absolute value under this menu item.


34 V – 160 V 1 V 60 V Table 56 Setting range for undervoltage blocking for regulator 2 (V)

To enter the limit value for undervoltage blocking for voltage regulator 2, pro-ceed as follows:

1. > Parameter >

Cross-monitoring > 2x . <02> V< regulator 2.


3. Press .

The limit value for undervoltage blocking is set as an absolute value.



7.3.13.3 Setting undervoltage blocking V< (%) for regulator 2

You can set the limit value for overvoltage blocking of the voltage regulator to be monitored as a percentage in this display.


60 %...100 % 1 % 60 % Table 57 Setting range for undervoltage blocking for regulator 2 (%)

To enter the limit value for undervoltage blocking for voltage regulator 2, pro-ceed as follows:

1. > Parameter >



3. Press .

The limit value for undervoltage blocking is set as a %.



7.3.13.4 Setting V> overvoltage blocking for regulator 2 (%)

You can set the limit value for overvoltage blocking of the voltage regulator to be monitored as a percentage in this display.


100 %...140 % 1 % 140 % Table 58 Setting range for overvoltage blocking for regulator 2 (%)

To enter the limit value for overvoltage blocking for voltage regulator 2, pro-ceed as follows:

1. > Parameter >



3. Press .

The limit value for overvoltage blocking is set as a %.



7.3.13.5 Setting V> overvoltage blocking for regulator 2 (absolute values)

You can set the limit value for overvoltage blocking of the voltage regulator to be monitored as an absolute value in this display.


34 V – 160 V 1 V 140 V Table 59 Setting range for overvoltage blocking for regulator 2 (V)

To enter the limit value for overvoltage blocking for voltage regulator 2, pro-ceed as follows:

1. > Parameter >



3. Press .

The limit value for overvoltage blocking is set as an absolute value.



7.3.13.6 Setting delay time for error message

If an error is recorded by a monitoring voltage regulator, you can set the error message delay time in this display.


0 s...10 s 1 s 10 s Table 60 Setting range for error message delay time

To set the error message delay time for voltage regulator 2, proceed as fol-lows:

1. > Parameter >

Cross-monitoring > 5x . <05> Error message.


3. Press .

The error message delay time for regulator 2 is set.



7.3.13.7 Setting the secondary transformer voltage for regulator 2

In this display, you can set the secondary transformer voltage of the voltage regulator to be monitored.


57 V – 110 V 1 V 100 V Table 61 Setting range for secondary transformer voltage for regulator 2 - V


0 kV...9999 kV 0 kV...999.9 kV 0 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

0 kV

Table 62 Setting range for secondary transformer voltage for regulator 2 - kV

To set the secondary transformer voltage of voltage regulator 2, proceed as follows:

1. > Parameter >

Cross-monitoring > 6x . <06> V sec regulator 2.


3. Press .

The secondary transformer voltage of voltage regulator 2 is set.



7.3.13.8 Setting primary transformer voltage for regulator 2

In this display you can set the primary transformer voltage of the voltage reg-ulator to be monitored.


0 kV...9999 kV 0 kV...999.9 kV 0 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

0 kV

Table 63 Setting range for primary transformer voltage for voltage regulator 2

To set the primary transformer voltage of voltage regulator 2, proceed as fol-lows:

1. > Parameter >

Cross-monitoring > 7x . <07> V prim voltage reg 2.


can be changed.


4. Press .

The primary transformer voltage of voltage regu-lator 2 is set.



7.4 Configuration

This section describes how to carry out all the settings for configuring sys-tem-specific data. To make it easier for you to find specific parameters, the description refers to subgroups of individual parameters with related functions.

7.4.1 Transformer data

The transformation ratios and measuring set-up for the voltage and current transformers used can be set in the relevant displays.

The relevant settings are described in the following sections.

7.4.1.1 Setting the primary transformer voltage

In general, the regulator only displays the secondary transformer voltage in V if you have not set the primary transformer voltage. The primary voltage is only displayed if you have previously set the "Display V / kV" parameter. The setting variants are shown in the table below.

Primary voltage Secondary voltage With a kV or V set-ting Display

No parameterization 100 V V 100 V 110 kV 100 V kV 110 kV

Table 64 Example of display variants


0 kV... 9999 kV 0 kV...999.9 kV 0 kV...99.99 kV

1 kV 0.1 kV 0.01 kV

100 kV

Table 65 Setting range for primary transformer voltage

To set the primary transformer voltage, proceed as follows:



1. > Configuration > Transfor-mer data. <00> Primary voltage.


can be changed.




5. Press .

The primary transformer voltage is set.



7.4.1.2 Setting the secondary transformer voltage

The secondary transformer voltage is displayed and entered in V.


100 V – 110 V 0.1 V 100 V Table 66 Setting range for secondary transformer voltage

To set the secondary transformer voltage, proceed as follows:

1. > Configuration > Transfor-

mer data > 1x . <01> Secondary voltage.




4. Press . The transformer secondary voltage is set.



7.4.1.3 Setting the primary transformer current

In general the voltage regulator displays the percentage current of the chosen measurement input. As soon as the primary rated current (e.g. 50 A) is set on the voltage regulator, the display in the Info menu switches over to "A" (am-peres). The primary current is always displayed in "A" on the main screen or as "0" if no primary current is specified.

Setting parameter Current feed

Display

Primary current Secondary cur-rent

Electrical con-nection

Info screen Primary / sec-ondary current

Main screen

No parameterization

Unknown 1 A 100 % 0 A

No parameterization

1 A 1 A 1 A 0 A

50 A Unknown 1 A 100 %

(of primary current)

50 A (of primary

current)

50 A 1 A 1 A 1 A

(of secondary current)

50 A (of primary

current) Table 67 Example of unit displayed: % / A




100 A – 10,000 A 1 A 200 A Table 68 Setting range for primary transformer current

To set the primary transformer current, proceed as follows:


mer data > 2x . <02> Primary current.




4. Press ..

The primary transformer current is set.

7.4.1.4 Setting the current transformer connection

The current transformer connection must be selected in order to obtain the correct display. If you set the current transformer connection to "Unknown" in the display, the percentage value is shown. However, if a connection is se-lected, the absolute value (in amps) is displayed. The following values can be set:

• 0.2 A

• 1 A

• 5 A



To set the current transformer connection, proceed as follows:


mer data > 3x . <03> Current transformer connection.

2. Press or to select the required terminal.

3. Press .

The current transformer connection has been set.

7.4.1.5 Setting the phase difference for the current/voltage transformer

The normal measuring circuit values can be set as follows:

System Setting Display

Single-phase 0 0 1PH Three-phase 0 0 3PH Three-phase 90 90 3PH Three-phase 30 30 3PH Three-phase -30 -30 3PH

Table 69 Setting options for the measuring circuits

Circuit a:

Figure 19 Circuit a - phase angle to be set 0;1PH

• Voltage transformer VT is connected to phase and neutral.

• Current transformer CT is looped in phase.



• Voltage VU and current IU are in phase.

• The line phase voltage drop is determined by current IU.

Circuit a:

Figure 20 Circuit a - phase angle to be set 0;3PH

• Voltage transformer VT is connected to U and N.

• Current transformer CT is looped in U.

• Voltage VU and current IU are in phase.

• The line phase voltage drop is determined by current IU.

Circuit b:

Figure 21 Circuit b - phase angle to be set 0;3PH

• Voltage transformer VT is connected to U and V.

• Current transformer CT1 is looped in U and CT2 in V.

• Current transformer CT1and CT2 are connected crosswise in parallel. Current summation = IU + IV.

• Current IU + IV and voltage VU V are in phase.

• The line phase voltage drop is determined by current: (IU + IV)/ √3.



Circuit c:

Figure 22 Circuit c - phase angle to be set 90;3PH


• Current transformer CT is looped in W.

• Current IW ahead of voltage VU V by 90°.

• The line phase voltage drop is determined by current IW.

Circuit d:

Figure 23 Circuit d - phase angle to be set 30;3PH


• Current transformer CT is looped in V.

• Current IV ahead of voltage VU v by 30°.

• The line phase voltage drop is determined by current IV.



Circuit e

Figure 24 Circuit e - phase angle to be set -30;3PH


• Current transformer CT is looped in U.

• Current IU lags behind voltage VU V by -30°. The line phase voltage drop is determined by current IU.

To set the phase difference for the measured transformer circuit, proceed as follows:


mer data > 4x . <04> Transformer circuit.

2. Press or to select the required phase difference.

3. Press .

The phase difference is set.



7.4.2 General

This submenu enables general settings, which are also required for commis-sioning, to be made on the device. You can change the following general set-tings:

• Language

• Regulator ID

• Baud rate (COM1 setting)

• Voltage display kV / V

• Current display %/A

• Duration of raise and lower pulse

• Configuration of free inputs/outputs (IOs)

• Display dimming

• Motor runtime

7.4.2.1 Setting the language

The display language can be set or changed as desired. The following lan-guages are available:

• English

• German

• French

• Spanish

• Italian

• Portuguese

1. > Configuration > General. <00> Language.

2. Press or to select the required language.

3. Press .

The language is set.



7.4.2.2 Setting the regulator ID

The regulator ID consists of a 4-digit sequence of digits and is used as addi-tional identification for a voltage regulator.

Identification is only used for the "TAPCON®-trol - Software" visualization. If you do not want to set the regulator ID, the serial number and firmware ver-sion are the only features.

The regulator ID can be used to ensure that the connection is established between the visualization software and a specific voltage regulator. During on-line communication, the software running on the PC queries this ID and com-pares it with the regulator data available. This enables accurate assignment of data or parameters.



To set the regulator ID, proceed as follows:

1. > Configuration > General >

1x . <01> Regulator ID.

2. Press to change the first digit.

If you wish to enter a multi-digit sequence, pro-ceed to step 3. If you do not wish to enter addi-tional digits, proceed to step 7:

3. Press repeatedly (digit > 9) until another position appears.

4. If necessary press to highlight a digit po-sition. The digit position you want is highlighted

and can be changed.

5. Press or to change the digit.

6. Repeat steps 3 to 5 until all required digits have been entered.

7. Press .

8. The regulator ID is set.

7.4.2.3 Setting the baud rate

In this display, you can set the baud rate for the COM1 interface, for example to define the speed of transfer for communication with the TAPCON®-trol software. The following values can be set:

• 9.6 kilobaud

• 19.2 kilobaud

• 38.4 kilobaud

• 57.6 kilobaud



To set the baud rate, proceed as follows:


2x . <02> Baud rate.

2. Press or to select the required baud rate.

3. Press .

The baud rate is set.

7.4.2.4 Setting the voltage display kV/V

Switching the display from V to kV converts the measurements and setting values in the device on the primary side of the voltage transformer and dis-plays them accordingly. However, the primary side is always displayed in kV and the secondary side always in V.

The display can only be changed from V to kV if all the transformer data have previously been entered.

To change the desired unit for the voltage display, proceed as follows:


3x . <03> Display kV/V.

2. Press or to to select the kV or V unit.

3. Press .

The required unit is set for the voltage display.



7.4.2.5 Setting current display unit

In this display, you can set the unit for the limit values displayed for overcur-rent and undercurrent as a percentage ("%") or absolute value ("A").

It is only possible to change from % to A if all the transformer data have pre-viously been entered.

To set the desired unit for the current display, proceed as follows:

1. > Configuration > General

> 4x . <04> Display %/A.

2. Press or to to select the % or A unit.

3. Press .

The required unit is set for the current display.

7.4.2.6 Setting the switching pulse time

This display can be used to set the duration of the switching pulse for the motor-drive unit.

If you set the raise or lower switching pulse time to 1.5 seconds for example, after the set delay time T1 or T2 there will be a switching pulse of 1.5 seconds.

The waiting time between 2 consecutive switching pulses corresponds to the set delay time T1 or T2.



Figure 25 Switching pulse in standard operating mode

1 T1 = set delay time 2 Start of first raise/lower switching pulse 3 Ti = switching pulse time (1.5 seconds) 4 Start of second raise/lower pulse

In Quick Tap mode the next switching pulse can only take place after 1.5 seconds.

Figure 26 Switching pulse in Quick Tap mode

1 Start of first raise/lower switching pulse 2 Ti = set switching pulse time (1.5 seconds) 3 Earliest time for the next raise/lower switching pulse (1.5 seconds)



A continuous pulse is output if you set the raise/lower switching pulse duration to 0.

If the motor-drive unit does not start using the default setting (1.5 seconds), then please increase the pulse time.


0 s...10 s 0.1 s 1.5 s Table 70 Setting range for raise/lower switching pulse duration

To set the pulse duration, proceed as follows:


5x . <05> R/L pulse duration.

2. Press or to set the pulse duration you want.

3. Press .

The R/L pulse duration is now set.



7.4.2.7 Configuring control inputs IO1-X1:33/31

You can assign functions to freely configurable control inputs in this display. You can assign the following functions to control inputs IO1-X1:33 and IO-X1:31:

Possible function Function description

Off No function selected Master/Follower Master mode active when signal on.

Follower mode active when signal off. Local/Rem. "Local" mode active.

"Remote" mode off. Blocking Automatic regulation blocked LV S operation T1/T2 deactivated. Raise/lower switching pulse

occurs when value exceeds/falls below band-width.

MPS tripped Signal: Motor protective switch was triggered. Remote/Loc. "Remote" mode active.

"Local" mode off. Table 71 Possible functions for control inputs

You can assign the "Local/Remote" function to either control input IO-X1:z 2 0 or control input IO-X1:d 20. The functions described below can be set for this assignment:

Setting at control input Signal

Manual/Auto and Raise/Lower can be set with F keys on the front

panel

Manual/Auto and Raise/Lower can be set via control inputs for remote

control or via a serial inter-face

Off 0 or 1 Yes Yes Local/Rem. 0 No Yes Local/Rem. 1 Yes No

Remote/Local 0 Yes No Remote/Local 1 No Yes

Table 72 Setting options for "Local" and "Remote" modes

If both freely configurable control inputs, IO-X1:31 and IO-X1:33, have dif-ferent or reversed settings, all voltage regulator functions are blocked. Example: If you have set both control inputs to "Local/Remote", and the signal is high (1), but low (0) on the other control input, the "Manual/Auto" and "Raise/lower" functions are not possible with either the F keys on the front panel or the inputs for remote messages or serial interface.



To assign functions to the control inputs, proceed as follows


6x . <06> IO1-X1:33.

2. Press or repeatedly until the re-quired function appears in the display.

3. Press .

The function is assigned.

All control inputs can be configured as described above. All the following con-trol inputs are available:

Control input Press . Page number in the dis-

play IO1-X1:33 6x <06> IO1-X1:31 7x <07>

Table 73 Freely configurable control inputs (IOs)



7.4.2.8 Configuring output relays IO1-X1:25/26 and IO1-X1:23/24

You can assign functions to freely configurable output relays in this display. You can assign the following functions to output relays IO1-X1:25/26 and IO-X1:23/24:

Possible function Function description

Off No function selected Master/Follower Master mode active when signal on.

Follower mode active when signal off. Local/Rem. "Local" mode active.

"Remote" mode off. Undervoltage Message: Undervoltage blocking. Overvoltage Message: Overvoltage blocking. Desired value 2 Message: Desired value 2 Desired value 3 Message: Desired value 3 Motor drive runtime pul-se>

Message: Pulse triggered; motor runtime ex-ceeded.

Motor drive runtime continuous>

Message: Continuous signal; motor runtime ex-ceeded.

Motor running Message: Motor running Bandwidth < Message: Value below bandwidth. Bandwidth > Message: Bandwidth exceeded.

Table 74 Possible functions for output relays

To assign functions to the output relays, proceed as follows:


8x . <08> IO1-X1:25/26.

2. Press or repeatedly until the de-sired function appears in the display.

3. Press .




All output relays can be configured as described above. All the following out-puts are available:

Output relay Press . Page number in the dis-

play IO1-X1:25/26 8x <08> IO1-X1:23/24 9x <09>

Table 75 Freely configurable output relays (IOs)

7.4.2.9 Activating/deactivating display dimming

If you activate this function, the display is automatically dimmed if no key is pressed within a period of 15 minutes. However, the display can still be read. Activating this function extends the lifespan of the display. The display returns to full brightness by pressing any key.


10x . <10> Display off.

2. Press or to switch display on (ON) or off (OFF).

3. Press .

Display is switched ON/OFF.

7.4.2.10 Monitoring motor runtime

The motor-drive unit's runtime can also be monitored by the voltage regulator. This function is used to identify motor-drive unit malfunctions during the tap-change operation and to trigger any actions needed.

The corresponding control input must be correctly wired and parameterized to "Motor running" in order to use runtime monitoring. The motor runtime must also be set.



The motor-drive unit supplies the "Motor-drive unit running" signal during the tap-change operation. This signal is present until the tap-change operation is complete. The voltage regulator compares the duration of this signal with the motor runtime set. If the set motor runtime is exceeded, the voltage regulator triggers various actions:

1. "Motor runtime monitoring" message

2. Continuous signal via output relay "Motor-drive unit runtime exceeded" (optional)

3. Impulse signal via output relay "Trigger motor protective switch" (optional)

7.4.2.11 Wiring and parameterizing control input/output relay

If you want to monitor the motor runtime, the voltage regulator and mo-tor-drive unit must be connected and parameterized as shown below.

Figure 27 Wiring for motor runtime monitoring

1 "Motor running" control input I/O 2 "Motor protective switch triggered" control input I/O (optional) 3 "Trigger motor protective switch" output relay I/O (optional) 4 "Motor-drive unit runtime exceeded" output relay I/O (optional)

If you want to use the output relay, the feedback from the motor-drive unit "Motor protective switch triggered" must be wired to a control input and pa-rameterized. This message resets the "Motor runtime exceeded" output relay when the motor protective switch is switched back on and activates the "Mo-tor protective switch triggered" message.




0 s...30 s 0.1 s 0 s Table 76 Setting range for motor runtime

To set the motor runtime, proceed as follows:

If the runtime monitoring is set to "0.0 s" this equates to it being switched off.

1. > Configuration > General

> 11x . <11> Motor runtime.




4. Press .

The motor runtime is set.



7.4.3 Parallel operation

Mains power supply sometimes requires an increase in the short-circuit ca-pacity or the throughput capacity at a site. For this reason, tapped transfor-mers are connected in parallel.

A safer and more cost effective parallel operation is achieved if the joint ca-pacity of the transformers connected in parallel is utilized without overloading individual transformers.

Compliance with the following general conditions is recommended for oper-ating transformers in parallel: • Identical rated voltage

• Ratio of transformer output (<3:1)

• Maximum deviation of short-circuit voltages (VK) for transformers con-nected in parallel ≤10 %

• Same number of switching groups

You can use the voltage regulator to control up to 16 transformers on a bus-bar connected in parallel in one or 2 groups without detecting the system to-pology. Information is swapped using the CAN bus. Parallel operation is activated using one of 2 status inputs or the control system.

There are 2 reasons for setting up parallel operating mode:

1. To increase the short-circuit capacity

2. To increase the throughput capacity

Parallel control can take one of two forms:

• Parallel operation following the "Circulating reactive current minimum" principle

• Parallel operation following the "Tap synchronization" (master/follower) principle



7.4.3.1 Selecting parallel operation method

The following sections describe which parallel operation methods can be se-lected and set. Four different methods can be assigned to the voltage regula-tors:

Circulating reactive current

• Recommended transformer data

• No tap position capture required

Tap synchronization (master/follower)

• Transformers with identical ratings

• Tap position capture required

Automatic tap synchronization

Off

• Parallel operation is deactivated

Before activating a parallel operation method, additional requirements must be met: • Correct individual CAN bus addresses must be set (≠0).

• The parallel operation group 1 or 2 must be selected or activated using a predefined IO.

The following sections describe how to activate a parallel operation method.



7.4.3.2 Deactivating parallel operation

To deactivate the parallel operation method, proceed as follows:

1. > Configuration > Parallel operation. <00> Parallel operation method.

2. Press or to Deactivate the parallel operation method by selecting "Off".

3. Press .

The parallel operation method is deactivated.

7.4.3.3 Selecting circulating reactive current sensitivity

When circulating reactive current is selected, then parallel operation is carried out using the circulating reactive current minimization method. The circulating reactive current is calculated from the transformer currents and their phase angles. A voltage proportional to the circulating reactive current is added to the independently operating voltage regulators as a correction for the mea-surement voltage. This voltage correction can be reduced or increased using the circulating reactive current sensitivity setting.

The circulating reactive current sensitivity method is suited to transformers connected in parallel with a similar nominal output and nominal voltage VK and to vector groups with the same and different step voltages. This does not require any information about the tap position.

This parallel operation method requires each transformer in the parallel vec-tor group to be controlled by a separate voltage regulator.

When setting the "circulating reactive current" parallel operation method, the values for blocking and circulating reactive current sensitivity must first be set.



To select the "circulating reactive current" parallel operation method, proceed as follows:


2. Press or repeatedly until "circulat-ing reactive current" appears in the display

The parallel operation method "Circulating reac-tive current" is selected.

7.4.3.4 Defining the master tap synchronization method

With this parallel operation method the voltage regulator is designated as the master. This voltage regulator takes control while all other follower voltage regulators comply with the control commands of the master.

The master compares the tap positions of the followers with its own tap posi-tion using the CAN bus. If there is a tap difference, the master directs the fol-lowers to be adjusted to the same tap position.

If the specified master fails, then the error message "Parallel operation error: no master available" appears in the display. In addition, depending on the configuration of the "Simplex mode blocking" parameter, those voltage regu-lators which are set accordingly are blocked or continue in simplex mode.

Please note that each voltage regulator must be assigned an address using the "CAN Address" display. Each address may only be used once. Only when all voltage regulators are registered can they communicate with one another using the CAN bus and use the "master/follower" method.



To specify the "master" parallel operation method, proceed as follows:


2. Press or repeatedly until "Master" appears in the display.

3. Press .

The "Master" parallel operation method is se-lected.

7.4.3.5 Specifying the follower tap synchronization method

With this parallel operation method the voltage regulator is designated as the follower. This voltage regulator receives the control commands from the mas-ter and as the follower has to comply with them.

To define the "Follower" parallel operation method, proceed as follows:


2. Press or repeatedly until "Follow-er" appears in the display.

3. Press .

The "Follower" parallel operation method is se-lected.



7.4.3.6 Specifying the follower tap synchronization method

With this parallel operation method, the voltage regulator with the lowest CAN address within the same parallel operation group is automatically selected as master. This voltage regulator undertakes the measurement and adjusts the on-load tap-changer in order to correct the voltage if a deviation occurs.

As with the "Master" parallel operation method, the voltage regulator com-pares the tap position of the followers with its own tap position using the CAN bus. If there is a tap difference, the voltage regulator directs the followers to be adjusted to the same tap position.

If there is a tap position difference between the master and follower which is larger than the maximum set tap difference , then the "Parallel operation er-ror" signal is issued. Automatic regulation blocks.

Please note that each voltage regulator must be assigned an address using the "CAN Address" display. Each address may only be used once. Only when all voltage regulators are registered can they communicate with one another using the CAN bus and use the "master/follower" method.

To specify the "Automatic tap synchronization" parallel operation method, proceed as follows:


2. Press or repeatedly until "Auto synchronization" appears in the display.

3. Press .

The "Automatic tap synchronization" parallel oper-ation method is selected.



7.4.3.7 Selecting parallel operation control

As an option, the voltage regulator can be fitted with a plug-in card for parallel operation with an existing parallel operation control unit when extending ex-isting systems. The following parallel control units can be connected:

• SKB 30E

• VC 100E-PM/PC

The settings required for parallel control must be undertaken in accordance with the relevant valid operating instructions.

If you do not have a parallel control unit, you must select the "Off" selection in the "SKB parallel operation" display. The possible selections are described in more detail in the table below.

Selection Function

On Parallel operation control with existing parallel control unit (plug-in card needed; see above)

Off Parallel operation control via CAN bus Table 77 Possible setting for SKB

To select the type of parallel operation control, proceed as follows:

1. > Configuration > Parallel

operation > 1x . <01> SKB parallel operation.

2. Press to select "On" or to select "Off".

3. Press .

The type of parallel control is set.



7.4.3.8 Entering CAN bus address

So that all voltage regulators can communicate using the CAN bus, each vol-tage regulator requires a unique identifier. Addresses can be set from 1 to 16. If the value is set to 0, then no communication takes place.


0...16 1 1 Table 78 Setting range for CAN bus address

To enter the CAN bus address, proceed as follows:


operation > 2x . <02> CAN address.


3. Press .

The CAN bus address is saved.

7.4.3.9 Specifying circulating reactive current sensitivity

The sensitivity of the circulating reactive current is a measure of its effect on the behavior of the voltage regulator. A setting of 0% has no effect. With cir-culating reactive current relating to the rated current on the current transfor-mer, if you set the value to 10 % for example, this would cause the voltage in the voltage regulator to be corrected by 10%. This correction to the voltage can be increased or decreased with this setting to attain the optimum value.

As soon as you change the circulating reactive current sensitivity value, the value for the result changes in the help text in the display.




0 %...100 % 0.1 % 0 % Table 79 Setting range for circulating reactive current sensitivity.

To set the circulating reactive current sensitivity, proceed as follows:


operation > 3x . <03> Stability.


3. Press to highlight the decimal place. The decimal place is highlighted and the

value can be changed.

4. Press .

The circulating reactive current sensitivity is set.

7.4.3.10 Setting the blocking threshold for the maximum permitted circulating reactive current

In this display, you can set the limit value for the maximum permitted circulat-ing reactive current in relation to the rated current of the current transformer. If, during parallel operation, the circulating reactive current exceeds the set limit value, then the following event is activated.

• "Problem with parallel operation"

As a result, all voltage regulators operating in parallel are blocked. Depending on the set delay time, the "Parallel operation fault" signaling relay is activated (UC-X1/1 and UC-X1/2 signaling relay contact). The corresponding LED lights up.

Setting the delay time for the parallel operation error message (see "Set-ting the delay time for the parallel operation error message" on page 160).




0.5 %...20 % 0.1 % 20 % Table 80 Setting range for circulating reactive current blocking

To set the blocking threshold for the maximum permitted circulating reactive current, proceed as follows:


operation > 4x . <04> Blocking.


3. Press .

The blocking threshold for the maximum permitted circulating reactive current is set.

7.4.3.11 Setting the delay time for the parallel operation error message

If the voltage regulator detects an error during parallel operation, the following error message is issued:

• "Problem with parallel operation"

This message can be issued with a delay so that there is no brief fault mes-sage if the motor-drive units involved in the parallel operation have different runtimes.

If a parallel operation error occurs, then the relevant LED immediately lights up. The message is however only issued at the output relay after the set delay time. Automatic regulation is blocked and the on-load tap-changers can only be adjusted in manual mode.


1 s...30 s 1 s 5 s Table 81 Setting range for parallel operation error message delay time



To set the delay time for the parallel operation error message, proceed as fol-lows:


5x . <05> Error message.


3. Press .

The delay time for the parallel operation error message is set.

7.4.3.12 Selecting the follower tapping direction

As in parallel operation the tap positions of the transformers which are running in parallel are compared according to the "Tap synchronization mas-ter/follower" method, it is absolutely essential that these transformers have the same position designation and that the "Raise" or "Lower" signals produce the same voltage change in all transformers.

Should a scenario arise where the follower switches in the opposite direction to the master's tap change, you will have to change this parameter setting from "Default" to "Swapped".

The following settings are possible:

Default dV>0 = tapping direction toward position 1 Swapped dV<0 = tapping direction toward position n

Table 82 Tapping directions

To select the tapping direction, proceed as follows:

Please note whether the voltage regulator is defined as master or follower when setting the tapping direction. The tapping direction can only be changed for a follower.




operation > 6x . <06> Tapping direction swapped.

2. Press or to select the required tapping direction.

3. Press .

The tapping direction is selected.

7.4.4 Configuring analog inputs

The analog input is used to record the tap position of an analog signal trans-mitter:

• Resistor contact series (200 - 2,000 ohms)

• Or injected current (0/4 - 20 mA)

Adjustment to the existing signal transmitter must be carried out during com-missioning.

7.4.4.1 Setting lower limit value (%) for input 1

To configure the analog input, the lower value of the input signal must be spe-cified.

With injected current as the transmitter signal, 0 % should be entered for 0 mA. 20 % should be entered for 4 mA.

Example:

Tap position Current Value

Minimum tap position 1 4 mA 20 %

of analog input signal range Table 83 Example for configuring the analog input

If the signal transmitter for capturing the tap position is a resistor contact se-ries, then 20 % should generally be set.




0 %...100 % 0.1 % 0 % Table 84 Setting range of analog value - lower limit value as %

To assign the analog value for the lower limit, proceed as follows:

1. > Configuration > Continue

> Analog inputs. <00> Input 1, lower limit.




4. Press .

The analog value for the lower limit is assigned.

7.4.4.2 Setting upper limit value (%) for input 1

To configure the analog input, the upper value of the input signal must be specified.

With impressed current as the transmitter signal, 20 % should be entered for 0 mA.

Example:


Maximum tap position 19 20 mA

100 % of analog input signal range

Table 85 Example for configuring the analog input (maximum)





0 %...100 % 0.1 % 100 % Table 86 Setting range of analog value - upper limit value as %

To assign the analog value for the upper limit, proceed as follows:


> Analog inputs > 1x . <01> Input 1, upper limit.




4. Press .

The analog value for the upper limit is assigned.

7.4.4.3 Setting lower limit value (absolute) of input 1

To configure the analog input, an absolute value must be assigned to the lower value of the applied signal.

Example:

You can set "1" for the lowest tap position.




-999.9...999.9 0.1 / 1 0.0 Table 87 Setting range for lower limit value (absolute value)


> Analog inputs > 2x . <02> Input 1, lower value.


3. Press .

The lowest tap position is set.

7.4.4.4 Setting upper limit value (absolute) for input 1

To configure the analog input, an absolute value must be assigned to the up-per value of the applied signal.

Example:

You can set "25" for the highest tap position.


-999.9...999.9 0.1 / 1 0.0 Table 88 Setting range for upper limit value (absolute value)



To set the highest tap position, proceed as follows:


> Analog inputs > 3x . <03> Input 1, upper value.


3. Press .

The highest tap position is set.

7.4.4.5 Setting lower limit value (%) for input 2

To configure the analog input, the lower value of the input signal must be spe-cified.

With injected current as the transmitter signal, 0 % should be entered for 0 mA. 20 % should be entered for 4 mA.

Example:


Minimum tap position 1 4 mA 20 %

of analog input signal range Table 89 Example for configuring the analog input



0 %...100 % 0.1 % 0 % Table 90 Setting range of analog value - lower limit value as %



To assign the analog value for the lower limit, proceed as follows:


> Analog inputs > 4x . <04> Input 2, lower limit.




4. Press .

The analog value for the lower limit is assigned.

7.4.4.6 Setting upper limit value (%) for input 2

To configure the analog input, the upper value of the input signal must be specified.

With impressed current as the transmitter signal, 20 % should be entered for 0 mA.

Example:


Maximum tap position 19 20 mA

100 % of analog input signal range

Table 91 Example for configuring the analog input (maximum)



0 %...100 % 0.1 % 100 % Table 92 Setting range of analog value - upper limit value as %



To assign the analog value for the upper limit, proceed as follows:


> Analog inputs > 5x . <05> Input 2, upper limit.




4. Press .

The analog value for the upper limit is assigned.

7.4.4.7 Setting lower limit value (absolute) of input 2

To configure the analog input, an absolute value must be assigned to the lower value of the applied signal.

Example:

You can set "1" for the lowest tap position.




-999.9...999.9 0.1 / 1 0.0 Table 93 Setting range for lower limit value (absolute value)


> Analog inputs > 6x . <06> Input 2, lower value.


3. Press .

The lowest tap position is set.

7.4.4.8 Setting upper limit value (absolute) for input 2

To configure the analog input, an absolute value must be assigned to the up-per value of the applied signal.

Example:

You can set "25" for the highest tap position.


-999.9...999.9 0.1 / 1 0.0 Table 94 Setting range for upper limit value (absolute value)



To set the highest tap position, proceed as follows:


> Analog inputs > 7x . <07> Input 2, upper value.


3. Press .

The highest tap position is set.

7.4.5 LED selection

The settings in this subgroup can be used to assign inputs or functions to the 4 free LEDs. These would then light up during an event. The function required must have been set in advance.

To label the LEDs, you can remove the label strip underneath and label indi-vidually using transferable lettering.



7.4.5.1 Functions available for LEDs

An overview of all possible functions which you can assign to the LEDs is pro-vided in the table below.

Possible functions Function description

Off LED deactivated IO1:25 Signal issued at IO1:25 input IO1:23 Signal issued at IO1:23 input IO1:21 Signal issued at IO1:21 input IO1:18 Signal issued at IO1:18 input UC1:2 Signal issued at UC1:2 input UC1:4 Signal issued at UC1:4 input UC1:6 Signal issued at UC1:6 input UC1:8 Signal issued at UC1:8 input UC1:10 Signal issued at UC1:10 input UC1:19 Signal issued at UC1:19 input UC1:21 Signal issued at UC1:21 input UC1:23 Signal issued at UC1:23 input UC1:25 Signal issued at UC1:25 input UC1:27 Signal issued at UC1:27 input UC2:2 Signal issued at UC2:2 input UC2:4 Signal issued at UC2:4 input UC2:6 Signal issued at UC2:6 input UC2:8 Signal issued at UC2:8 input UC2:10 Signal issued at UC2:10 input UC2:19 Signal issued at UC2:19 input UC2:21 Signal issued at UC2:21 input UC2:23 Signal issued at UC2:23 input UC2:25 Signal issued at UC2:25 input UC2:27 Signal issued at UC2:27 input IO1:33 Signal issued at IO1:33 input IO1:31 Signal issued at IO1:31 input IO1:29 Signal issued at IO1:29 input IO1:28 Signal issued at IO1:28 input IO1:17 Signal issued at IO1:17 input IO1:16 Signal issued at IO1:16 input IO1:14 Signal issued at IO1:14 input IO1:13 Signal issued at IO1:13 input IO1:11 Signal issued at IO1:11 input IO1:12 Signal issued at IO1:12 input



Possible functions Function description

UC1:33 Signal issued at UC1:33 input UC1:32 Signal issued at UC1:32 input UC1:31 Signal issued at UC1:31 input UC1:30 Signal issued at UC1:30 input UC1:17 Signal issued at UC1:17 input UC1:16 Signal issued at UC1:16 input UC1:15 Signal issued at UC1:15 input UC1:14 Signal issued at UC1:14 input UC1:12 Signal issued at UC1:12 input UC1:11 Signal issued at UC1:11 input UC2:33 Signal issued at UC2:33 input UC2:32 Signal issued at UC2:32 input UC2:31 Signal issued at UC2:31 input UC2:30 Signal issued at UC2:30 input UC2:17 Signal issued at UC2:17 input UC2:16 Signal issued at UC2:16 input UC2:15 Signal issued at UC2:15 input UC2:14 Signal issued at UC2:14 input UC2:12 Signal issued at UC2:12 input UC2:11 Signal issued at UC2:11 input SI:bef1 Signal issued at SI:bef1 input SI:bef2 Signal issued at SI:bef2 input Undervoltage Undervoltage present Overvoltage Overvoltage present Overcurrent Overcurrent present Parameter error Parallel operation error present Motor protection Motor protective switch tripped Blocking Control blocked Circulating reactive current

Parallel operation selected using circulating reac-tive current method

Master Voltage regulator in parallel operation activated as master

Follower Voltage regulator in parallel operation activated as follower

Automatic Auto mode active Bandwidth < Value below bandwidth Bandwidth > Value above bandwidth

Table 95 Possible functions for LEDs



A function can be assigned to an LED if desired. As soon as the correspond-ing event occurs, the selected LED lights up. There is a total of 6 LEDs avail-able, each of which can be assigned an input or a function.

To assign a function to an LED, proceed as follows (Example: "LED 1"):

1. > Continue > LED selection. <00> LED 1.

2. Press or repeatedly until the re-quired function appears in the display.

3. Press .


All additional LEDs can be assigned as described above. The LEDs available can be called up as follows:

LED Characteristics Press

.

Page number in the display

LED 1 Single-colored - <00> LED 2 Single-colored 1x <01> LED 3 Single-colored 2x <02>

LED 4 red Two-colored 3x <03> LED 4 green Two-colored 4x <04>

Table 96 Freely-configurable LEDs

7.4.6 Configuring transducer function

Depending on the configuration and version of the transducer module 2 or 4, the transducer module can be used to obtain measured values as analog values in the following ranges:

The following values are available:

• V1

• V2 (optional via a second measurement input)

• I1

• Active current

• Reactive current



• Active power

• Reactive power

• Apparent power

• Tap position

• Desired value

If the analog outputs have not been set as you want them in the factory, the section below describes how you can change them for measuring transducer 1. Please undertake the settings form measuring transducers 2 to 4 in the same way.

7.4.6.1 Assigning measurement parameter of outputs 1 to 4

In this display you can assign a measurement parameter to be transferred to the transducer output.

Possible settings Factory setting

Off (no assignment)

Off

V1 (kV) I1 (A) Tap position Desired value V2 (kV) - optional via a second measurement inputActive current Reactive current Apparent power Active power Reactive power

Table 97 Measurement parameters for outputs 1 to 4



In order to assign a measurement parameter to the measuring transducer output, proceed as follows (example using transducer 1/2; "output 1 meas-ured value"):


> Continue > Measuring trans-ducer 1/2. <00> Output 1 measured value.

2. Press or repeatedly until the de-sired measurement parameter is displayed.

3. Press .

The desired measurement parameter is assigned.

7.4.6.2 Assigning minimum physical parameter

In this display you can assign a minimum physical parameter to the transduc-er output.


4 mA

4 mA

0 mA -1 mA -4 mA -10 mA -20 mA 0 V -10 V

Table 98 Minimum physical parameters for outputs 1 to 4



To assign the lower physical parameter to the measuring transducer, proceed as follows:


> Continue > Measuring trans-

ducer 1/2 > 1x . <01> Output 1, lower.

2. Press or repeatedly until the de-sired physical parameter is displayed.

3. Press .

The desired physical parameter is assigned.

7.4.6.3 Assigning maximum physical parameter

In this display you can assign a maximum physical parameter to the trans-ducer output.


1 mA

20 mA 10 mA 20 mA 10 V

Table 99 Maximum physical parameters for outputs 1 to 4



To assign the upper physical parameter to the measuring transducer, proceed as follows:



ducer 1/2 > 2x . <02> Output 1, top.

2. Press or repeatedly until the de-sired physical parameter is displayed.

3. Press .

The desired physical parameter is assigned.

7.4.6.4 Assigning minimum absolute value

In this display you can assign a minimum limit value to the transducer output as an absolute value.


-9999...9999 -999.9...999.9 -99.99..99.99

1 0.1 0.01

0

Table 100 Setting range for lower limit value for measuring transducer.



To assign the minimum absolute value, proceed as follows:



ducer 1/2 > 3x . <03> Output 1, lower value.


3. Press .

The minimum absolute value is assigned.

7.4.6.5 Assigning maximum absolute value

In this display you can assign a maximum limit value to the transducer output as an absolute value.


-9999...9999 -999.9...999.9 -99.99..99.99

1 0.1 0.01

0

Table 101 Setting range for upper limit value for measuring transducer

To assign the maximum absolute value, proceed as follows:



ducer 1/2 > 4x . <04> Output 1, value top.


3. Press .

The minimum absolute value is assigned.



7.4.7 Configuring measured value memory function (optional)

You can undertake measured value memory settings in this subgroup. This configures the event memory and plotter function.

The "Measured value plotter" module (8MB) can be used to save the data listed below and display and evaluate this either on the display or using the TAPCON®trol visualization software. For more detailed information, please refer to the respective technical files for both the hardware and visualization software.

The following values are displayed:

• Measured values

On-load tap-changer position

Voltage

Active current

Reactive current

• Calculated values

Active power

Reactive power

Apparent power

Output factor

Calculation of the values stated depends on the measured values captured and the parameters set, for example: • Current measuring circuit

• Primary current

• Voltage transformer data from primary and secondary sides

A correct calculation can only be undertaken if the configuration data are correctly entered in full.



7.4.7.1 Average value memory and event memory

The measured value plotter is split into the following areas:

Average value memory

In the average value memory, all measured and calculated values are aver-aged and saved using the average value intervals you set. You can set the average value intervals in stages between 1 and 40 seconds. You can set the average value interval (see "Setting time difference of average value in-terval" on page 186).

Event memory

Data is always saved to the event memory with the highest resolution without first being averaged. You can also determine how much memory space is to be made available exclusively for the event memory (see "Setting size of event memory" on page 187). The memory size is 8MB.

The measured value plotter is equipped with event triggering such that an event is triggered depending on the undervoltage and/or overvoltage limit value that you can set. The data recorded here are stored in the measured value memory's event memory.

To allow instances where values exceed or fall below the limit values to be better evaluated, the chronological sequence for the measured and calculated values also includes the last 10 seconds before

the value exceeds or falls below the limit value. Event is saved for a maximum of 5 minutes.

Only the time-based processes for values measured and calculated during the event are stored in the event memory.

If the event memory is full, the oldest values are overwritten by the new val-ues measured. You can access information about the current event memory content via the "Info" menu.



7.4.7.2 Chronological sequence of voltage's effective value

The measured value memory records the chronological sequence of the vol-tage's effective value. The chronological sequence for the tap positions is also shown to allow the control path to undergo an initial analysis. The voltage se-quence can be displayed on the voltage regulator. The voltage and tap posi-tion can be displayed jointly using the TAPCON®trol visualization software.

You must set the system date and system time if records are to feature the right times. The following sections describe how you can set these.

7.4.7.3 Setting system time

You can set the system time in this display. The time format can be set using the 24-hour format:

HH:MM:SS

To set the system time, proceed as follows:


> Continue > Memory > 6x . <06> Time.

2. Press or to select the number to be edited. The digit position you want is highlighted

and can be changed.

3. Press or to edit the digit.

4. Press .

The system time is set.



7.4.7.4 Setting system date

You can set the system date in this display. The system date can be set from 01.01.2001 to 12.29.2099 and has the following format:

DD:MM:YY

To set the system date, proceed as follows:


> Continue > Memory > 7x . <07> Date.

2. Press or to select the number to be edited. The digit position you want is highlighted

and can be changed.

3. Press or to edit the digit.

4. Press .

The system date is set.

7.4.7.5 Setting undervoltage threshold (%)

In this display you can set the undervoltage threshold as a percentage. If the voltage falls below the set undervoltage threshold, high-resolution measured values are saved for as long as this situation prevails.


60 %...100 % 1 % 90 % Table 102 Setting range for undervoltage V< threshold as percentage



To set the undervoltage threshold, proceed as follows:


> Continue > Memory. <00> Threshold V<.


3. Press .

The undervoltage threshold is set.

7.4.7.6 Setting undervoltage threshold (absolute value)

In this display you can set the undervoltage threshold as an absolute value. If the voltage falls below the set undervoltage threshold, high-resolution meas-ured values are saved for as long as this situation prevails.

Entries can be made either in V or kV. If you enter the absolute value in V, it relates to the secondary transformer voltage. If you enter the absolute value in KV, it relates to the primary voltage.


40 V – 160 V 0 kV...2 kV

0.1 V / 1 V 1 kV

90 V 1 kV

Table 103 Setting range for undervoltage V< threshold as absolute value



To set the undervoltage threshold, proceed as follows:


> Continue > Memory. 1x <01> Threshold V<.


3. If V is selected, press to highlight the decimal place. The decimal place is highlighted and the



5. Press .

The undervoltage threshold is set.

7.4.7.7 Setting overvoltage threshold (%)

In this display you can set the overvoltage threshold as a percentage. If the voltage exceeds the set overvoltage threshold, high-resolution measured val-ues are saved for as long as this situation prevails.


100 %...140 % 1 % 110 % Table 104 Setting range for V> overvoltage threshold as percentage



To set the overvoltage threshold, proceed as follows:


> Continue > Memory > 2x . <02> Threshold V>.


3. Press .

The overvoltage threshold is set.

7.4.7.8 Setting overvoltage threshold (absolute value)

In this display you can set the overvoltage threshold as an absolute value. If the voltage exceeds the set overvoltage threshold, high-resolution measured values are saved for as long as this situation prevails.

Entries can be made either in V or kV. If you enter the absolute value in V, it relates to the secondary transformer voltage. If you enter the absolute value in KV, it relates to the primary voltage.


40 V – 160 V 0 kV...2 kV

0.1 V / 1 V 1 kV

110 V 1 kV

Table 105 Setting range for V> overvoltage threshold as absolute values



To set the overvoltage threshold, proceed as follows:


> Continue > Memory. 3x <03> V> memory.


3. If V is selected, press to highlight the decimal place. The decimal place is highlighted and the



5. Press .

The overvoltage threshold is set.

7.4.7.9 Setting time difference of average value interval

The voltage regulator's long-term memory has a capacity of 8 MB. The mem-ory is split into the average value memory and event memory. Depending on the setting, intervals of 1; 2; 4; 10; 20 or 40 (on page 189) seconds are saved in the average value memory.


1 s...40 s 1 s / 2 s / 6 s / 10 s / 40 s 1 s

Table 106 Setting range for average value interval

When you set the average value interval, the complete memory is cleared once the change is confirmed.



To set the mean value interval, proceed as follows:


> Continue > Memory > 4x . <04> Average value interval.


3. Press .

The mean value interval is set.

7.4.7.10 Setting size of event memory

The event memory stores instances of values exceeding or falling below the preset threshold values. It stores this information in high resolution. Refer to the table below for the maximum number of events, depending on the size of the event memory:

Size of event memory 256 kB 512 kB 1024 kB 2048 kB

Maximum number of events 20 40 80 160

Table 107 Size of event memory



Below you will find examples which illustrate how the event memory works:

Figure 28 For an event lasting less than 5 minutes

1 Duration: 10 seconds 2 Duration: 10 seconds 3 High-resolution recording 4 Low-resolution recording

Figure 29 For an event lasting more than 5 minutes

1 Duration: 10 seconds 2 Duration: Around 5 minutes 3 Duration: 10 seconds 4 Duration: 10 seconds 5 High-resolution recordings 6 Low-resolution recording



The high-resolution data are first saved 10 seconds before the event. After an event has lasted 5 minutes, data are saved with a low resolution. If the vol-tage returns to the bandwidth, this is considered a new event. This new event has a 10-second run-in time and a 10-second follow-up time.

The table below shows the memory time. Depending on the average value interval and the size of the event memory, it is a maximum of 401 days.

Average value interval Size of event memory

256 kB 512 kB 1024 kB 2048 kB 1 s 10 d 9 d 8 d 7 d 2 s 20 d 19 d 17 d 14 d 4 s 40 d 38 d 35 d 29 d 10 s 100 d 96 d 89 d 73 d 20 s 201 d 193 d 178 d 147 d 40 s 401 d 386 d 356 d 295 d

Table 108 Memory time of measured value memory

When you set the average value interval, the complete memory is cleared once the change is confirmed.

To set the size of the event memory, proceed as follows:


> Continue > Memory > 5x . <05> Event memory.

2. Press or to set the event memory size you want.

3. Press .

The event memory size is set.



7.4.7.11 Time plotter

You will find the time plotter function under "Info". The desired value you have set is automatically displayed here. The units of voltage per unit are defined by the software and you can change them at any time. However, the set val-ues which are dependent on parameterization are adopted when you call the time plotter function back up again.

You can undertake the following settings in the time plotter function:

• Division of time axis

• Voltage range

• Retrace time

• Retrace date

7.4.7.11.1 Visual display of time plotter function

The time plotter is displayed as follows:

Desired value/actual value display

Figure 30 Desired value and actual value display of time plotter

1 Desired value display 2 Actual value display 3 Actual value display 4 Desired value display



Overvoltage/undervoltage display

Figure 31 Voltage display of time plotter

1 Overvoltage and undervoltage bar 2 Undervoltage value 3 Overvoltage value

Description of symbols

Figure 32 Other time plotter symbols

1 Move time axis back 2 Move time axis forward 3 Increase set values by one unit 4 Select values to set 5 Decrease set values by one unit

The following sections describe how to run the above functions.



7.4.7.11.2 Moving time axis

Here you can set the reporting times in the setting box. We would always recommend choosing the highest possible resolution given the range dis-played. Refer to the table for the time axis division and the resulting duration of the range shown.

Figure 33 Reporting times which can be set

1 Horizontal grid lines (the set reporting time range is between the horizontal grid lines)

2 Setting box for reporting times displayed

Steps which can be set (grid width) 15 s 30 s 1 min 2.5 min 5 min 10 min

Displayed range (in full display) 3.5 min 7 min 14 min 35 min 70 min 140 min

Table 109 Duration of range displayed



Proceed as follows to undertake settings:

1. > Info > 1x . Time plotter.

2. Press to highlight the setting box for the reporting times. The setting box is highlighted and the val-

ue can be changed.

3. Press to move the display forwards one

step or to move it back one step.

The time axis is set.

7.4.7.11.3 Setting voltage range

In this display the voltage range is shown in the area between the horizontal grid lines. You can restrict the area between the horizontal grid lines in the corresponding setting box. Depending on the display setting, you can display the voltage range to be displayed in V or kV (see "Setting the voltage display kV/V" on page 141).

Figure 34 Voltage range which can be set

1 Horizontal grid lines (the set voltage range is between the horizontal grid lines)

2 Setting box for voltage range displayed



The voltage range to be displayed is divided as follows:

Division of ranges

0.5 V 1 V 2 V 5 V 10 V 15 V - - 0.1kV 0.2 kV 0.5 kV 1kV 2 kV 5 kV 10 kV 20 kV

Table 110 Voltage range between the horizontal grid lines

To set the voltage range, proceed as follows:


2. Press twice to highlight the setting box for voltage range.

The setting box is highlighted and the value can be changed.

3. Press to advance one unit or to move back one unit.

The voltage range is set.

7.4.7.11.4 Setting retrace time

This function allows you to move the sequence to a precise time in order to trace how voltage has behaved in the past.

Any time between the present time and the oldest time in the memory can be set. The time is entered in the following format:

HH:MM:SS



To move the sequence to a precise time, proceed as follows:


2. Press three times to highlight the setting box for retracing. The setting box is highlighted and the


3. Press to advance the time or to move it back.

The retrace time is set. The sequence for the spe-cified time appears in the display.

7.4.7.11.5 Setting retrace date

This function allows you to move the sequence to a precise date in order to trace how voltage has behaved in the past.

Any date between the present date and the oldest time in the memory can be set. The date is entered in the following format:

DD:MM:YY



To move the sequence to a precise time, proceed as follows:


2. Press four times to highlight the setting box for retracing. The setting box is highlighted and the


3. Press to advance the date by one digit

or to move it back one digit.

The retrace date is set. The sequence for the spe-cified day appears in the display.

7.4.8 Communication interface SID

The following section describes how to configure the communication interface.

7.4.8.1 Assigning a network mask

In this display, you can assign a valid, individual IP address to the Ethernet module of the SID card.


0.0.0.0...255255255255 1 0.0.0.0 Table 111 Setting range for the network mask



To assign a network mask, proceed as follows:


12x <12> Network screen.

2. Press to mark a position. The desired position is marked and the



4. Press .

The network mask is assigned.



7.4.8.2 Assigning network address

In this display, you can assign a valid, individual IP address to the Ethernet module of the SID card.


0.0.0.0...255255255255 1 0.0.0.0 Table 112 Setting range for network address

To assign a network address, proceed as follows:


13x . <13> Network address.




4. Press .

The network address is assigned.



7.4.8.3 Entering the time server address

In this display, you can enter the IP address of the SNTP time server to en-sure that time is synchronized in the communication network.


0.0.0.0...255255255255 1 0.0.0.0 Table 113 Setting range for the time server address

In order to enter the time server address of the SNTP server, proceed as fol-lows:


14x . <14> Time server address.




4. Press .

The time server IP address is entered.



7.4.8.4 Entering gateway

You can enter the gateway address in this display.


0.0.0.0...255255255255 1 0.0.0.0 Table 114 Setting range for gateway

To enter the gateway address, proceed as follows:


15x . <15> Gateway.




4. Press .

The gateway address is entered.



7.4.8.5 Entering IED name

You can assign a device name (IED Name) in this display.

To enter the IED name, proceed as follows:


16x . <16> IED name.




4. Press .

The IED name is entered.

7.5 Info

You can view general information about on the voltage regulator in this dis-play. You can call up the following information:

• General information about the device

• Functional reliability of the LEDs (LED test)

• Parallel operation

• Parameters

• Upcoming messages

• Input/output status

• Status of UC1 card

• Status of UC2 card

• RTC (real-time clock)

• Data on CAN bus



• Measured values

• Peak memory

• Measured value memory

• Time plotter

Figure 35 Info screen

1 Type designation 2 Software version 3 Date of issue 4 Size of EEPROM / ID number of module 5 Flash memory 6 RAM memory

The current measured values are shown in this display. The following meas-ured values can be displayed:

Figure 36 Measured values



1 V1 = voltage at first measurement input 2 I1 = current at first measurement input 3 Phase difference of V1 to I1 4 V2 = voltage at second measurement input 5 Reactive current at first measurement input 6 Iactive1 = active current at first measurement input

To display the measured values, proceed as follows:

> Info > 1x <01> Measured values.

7.5.1 Carrying out LED test

An LED function test can be carried out based on the information displayed. This checks whether all the LEDs are functioning properly.

This function only tests the functional reliability of the LEDs. The underlying function is not therefore tested.

To carry out the LED test, proceed as follows:

1. > Info > 2x . <02> LED TEST.

2. To carry out the function test, press any F key for the LED you want to test.



Key LED no.

... LED 1 ... LED 5

+ ... + LED 6 ... LED 9

All LEDs

Table 115 Selecting the LEDs for tests

7.5.2 Querying status

All active messages or signals from all cards are displayed in the status dis-plays. The displays have the following structure:

Figure 37 Status display

1 Signalling status 2 Control inputs/output relays 3 Signalling status 4 Control inputs/output relays

The following sections describe how you can display the respective status windows.

7.5.2.1 Displaying input/output status

The status of the respective optocoupler inputs is shown under "INPUT / OUTPUT-STATUS". As soon as a continuous signal is present at the input, it is shown in the display with a "1". "0" indicates no signal at the input.



To query the status, proceed as follows:

> Info > 3x <03> INPUT/OUTPUT STATUS.

7.5.2.2 Querying status of UC1 card

The status of the respective optocoupler inputs is shown under "UC1 CARD STATUS". As soon as a continuous signal is present at the input, it is shown in the display with a "1". "0" indicates no signal at the input.


> Info > 4x <04> UC1 CARD STATUS.

7.5.2.3 Querying status of UC2 card

The status of the respective optocoupler inputs is shown under "UC2 CARD STATUS". As soon as a continuous signal is present at the input, it is shown in the display with a "1". "0" indicates no signal at the input.


> Info > 5x <06> UC3 CARD STATUS.



7.5.3 Resetting parameters

With this display you can reset your settings to the factory settings.

To reset the parameters, proceed as follows:

If you reset the parameters to the factory settings, then your settings are permanently deleted.

1. > Info > 6x . <06> Parameter.

2. Press and at the same time.

3. Press .

All parameters have been reset to the factory set-tings.

7.5.4 Displaying real-time clock

A counter is started when the voltage regulator is first switched on. This con-tinues to run even if the device is switched off.

To display the real-time clock, proceed as follows:

> Info > 7x . <07> RTC.

7.5.5 Displaying parallel operation

This display indicates the control number for parallel operation (= CAN bus address) and the number of voltage regulators which are currently operating in parallel.



Proceed as follows to display the parallel operation data:

> Info > 8x . <08> Parallel operation.

7.5.6 Displaying data on CAN bus

The CAN bus data of all voltage regulators running in parallel are shown in this display.

Figure 38 Display for CAN bus data

1 CAN bus address of voltage regulator 2 Voltage in volts 3 Active current in % 4 Reactive current in % 5 Tap position



The additional CAN bus data of all voltage regulators running in parallel can also be shown in this display.

Figure 39 Display for additional CAN bus data

1 Group input 1 2 Group input 2 3 Circulating reactive current parallel operation (0 = deactivated; 1 = activated) 4 "Master" tap synchronization (0 = deactivated; 1 = activated) 5 "Follower" tap synchronization (0 = deactivated; 1 = activated) 6 "Auto" tap synchronization (0 = deactivated; 1 = activated)

7 Voltage regulator blocks group because parallel operation is experiencing a fault (0 = is not blocked; 1 = is blocked)



To display the CAN bus data, proceed as follows:

1. > Info > 9x . <09> DATA ON CAN BUS.

The CAN bus data are displayed. If you want to display more data, go to step 2:

2. Press and keep held down.

The additional information is displayed until you release the key.

7.5.7 Displaying measured value memory

As an option, the voltage regulator can be equipped with a long-term memory module. You can display information about the memory in this window.

To display the measured value memory, proceed as follows:

> Info > 12x . <12> MEASURED VALUE MEMORY.

7.5.8 Displaying peak memory

The minimum and maximum voltage measured since the last reset and the minimum and maximum on-load tap-changer tap positions are shown here. All values recorded are stored with a time and date.

The minimum and maximum values continue to be stored in an internal fixed value memory even in the event of power failure.



Figure 40 Peak memory: Minimum (left) and maximum values (right)

1 Maximum measured voltage V1 2 Maximum on-load tap-changer tap position 3 Time (HH:MM:SS) and date (DD.MM.YY) of maximum measured voltage V1 4 Time (HH:MM:SS) and date (DD.MM.YY) of maximum recorded tap position 5 Time (HH:MM:SS) and date (DD.MM.YY) of minimum recorded tap position 6 Time (HH:MM:SS) and date (DD.MM.YY) of minimum measured voltage V1 7 Minimum on-load tap-changer tap position 8 Minimum measured voltage V1

To display the peak memory, proceed as follows:

> Info > 13x . <13> Peak memory.

7.5.9 Displaying CIC1 card SCADA information

The following information on the SCADA connection is displayed under "CIC1 card SCADA information".

• Protocol

• Data format

• BOOT version



If necessary, you can also reset the Ethernet connection.

To display the SCADA information on the CIC1 card, proceed as follows:

> Info > 14x <14> CIC1 card SCADA information.

The SCADA information on the CIC1 card is dis-played. If necessary, you can reset the Ethernet connec-tion.

Press and at the same time to re-set the Ethernet connection.

7.5.10 Displaying CIC2 card SCADA information

The following information on the SCADA connection is displayed under "CIC2 card SCADA information".

• Protocol

• Data format

• BOOT version

If necessary, you can also reset the Ethernet connection.

To display the SCADA information on the CIC2 card, proceed as follows:

> Info > 15x <15> CIC2 card SCADA information.

The SCADA information on the CIC2 card is dis-played. If necessary, you can reset the Ethernet connec-tion.

Press and at the same time to re-set the Ethernet connection.



7.5.11 Displaying upcoming messages

This display shows upcoming messages, such as:

• Undervoltage

• Overvoltage

• Fault in parallel operation

• etc.

To display the upcoming messages, proceed as follows:

> Info > 13x . <16> UPCOMING MESSAGES.

8 Interface description for IEC 61850 protocol



8.1 Physical connection

The connection to system level takes the form of a network cable via the RJ45 port on the rear of the TAPCON® 260.

The speed is automatically set to 10 or 100 Mbit.

Before commissioning the TAPCON® 260, the customer/system developer and MR should compare configuration data. On request, MR will send the ICD (Intelligent electronic device Configuration Description) file to the custom-er/system developer and the compared configuration details are returned as a CID (Configured Intelligent electronic Device) file.

The parameters for the TCP/IP address, subnet mask and time server ad-dress can also be set later on. This can either be done directly via corres-ponding screens on the TAPCON® 260 itself or via the "TAPCON®-trol system" visualization software, i.e. on a PC or laptop. The system time for the SID card is set via the SNTP (Simple Network Time Protocol) time server.

The product was developed in compliance with the relevant EMC standards. In order to maintain EMC standards, note the descriptions provided in the Electromagnetic compatibility (see "Electromagnetic compatibility" on page 55) chapter.

8.2 Device-specific data points for TAPCON® 260

The device-specific data points and presettings can be found in the device's ICD file. The MICS (Model Implementation Conformance Statement) and PICS (Protocol Implementation Conformance Statement) can be requested for the device.



8.3 Downloading the ICD file

You can download the ICD file via FTP from the communication unit (SID) using an Internet browser. To do this, you need to know the configured IP ad-dress in order to establish the Ethernet connection.

Proceed as follows to download the ICD file:

1. Enter ftp://gast@<IP address> in your browser (in the example in the di-agram below, the IP address is 192.168.0.1).

2. Use "Save as" to save the ICD file (in this example ATCC.ICD) on the local PC.

3. Other files, such as the Model Implementation Conformance Statement, are located in the misc folder and can also be saved on the local PC us-ing "Save as".

The ICD file is downloaded.

Figure 41 Downloading the ICD file using an Internet browser

9 Fault elimination


9 Fault elimination

The following chapter describes how to eliminate simple operating faults and the meaning of possible event messages.

9.1 Operating faults

If faults occur in the device during operation, these can usually be remedied by the user. The tables below are intended to provide assistance in recogniz-ing and remedying faults.

9.1.1 No control in AUTO mode

Characteristics/detail Cause Remedy

Voltage regulator control commands have no effect. • RAISE/LOWER LEDs

light up periodically

Local/Remote switch in mo-tor-drive unit switched to LOCAL

Check operating mode. Correct if necessary.

Connection missing. Check wiring as per connection diagram.

• Blocking

Reverse power lock active. Check parameter. Correct if necessary.

Negative power flow. Check current transformer polarity.

Control inputs (IOs) have duplicate parameterization.

Check parameterization of IOs. Correct if necessary.

One of the IOs is paramete-rized with "Blocking" and has an appropriate input signal.

Check parameterization and status in info screen (in-put/output status). Correct if necessary.

NORMset active. Carry out manual tap-change

operation with or keys.

Undercurrent blocking acti-ve.

Check parameter. Correct if necessary.

9 Fault elimination


Characteristics/detail Cause Remedy Blocking • LED V< illuminated

Undervoltage blocking acti-ve


Blocking • LED V> illuminated

Overvoltage blocking active. Check parameter. Correct if necessary.

Blocking • LED I> illuminated

Overcurrent blocking active. Check parameter. Correct if necessary.

Bandwidth set too high - Calculate sensitivity:Step voltage x 100 / nominal voltage

Table 116 Troubleshooting: No control in AUTO mode

9.1.2 Man Machine Interface

Characteristics/detail Cause Remedy Keys • Does not switch be-

tween MANUAL/AUTO

REMOTE selected. Select LOCAL mode.

Keys • MANUAL and AUTO

LEDs do not light up.

Parameter error. Reset to factory settings.

Display • No display.

Contrast incorrectly set. Set contrast using resistor con-tact series in front panel.

Voltage supply interrupted. Check voltage supply.

Fuse faulty. Replace fuse.

9 Fault elimination


Characteristics/detail Cause Remedy Display • Different brightness on

several voltage regula-tors.

Display dimming activated/deactivated.

Check "Display dimming" setting.

LEDs • Freely configurable

LED lights up.

Customized LED parameterization.


LEDs • LED flashes irregularly.

Input signal not constant. Check input signal.

LEDs • Status LED of SID card

not flashing.

Network address, network mask, gateway addresses, time server address or IED name not set.

Check the network address, network mask, gateway ad-dresses, time server address and IED name parameters.

COM1 • Cannot be connected to

PC using TAPCONtrol.

Different baud rates set. Check "Baud rate" parameter (voltage regulator and TAP-CON®trol). Correct if necessary.

Table 117 Troubleshooting: Man Machine Interface

9.1.3 Incorrect measured values


Measured voltage • No measured value.

Connection has no contact in the plug terminal.

Check wiring and plug terminal. Insulation trapped. Wire not inserted far enough. Circuit breaker tripped. Check fuse.

Measured voltage • Measured value too

low.

Voltage drop on measuring lead.

Check measured voltage at plug terminal.

Measured voltage • Measured value fluc-

tuates too much.

Possible sources of fault: • Leads laid in parallel.

• Tap-change operations.

Check measured voltage at plug terminal. Increase distance from source of interference. Install filter if necessary.

9 Fault elimination



Measured current • No measured value.

Line to current transformer interrupted.

Check wiring.

Do not remove short-circuiting jumper in current transformer.

Remove short-circuiting jumper.

Measured current • Measured value too

high.

• Measured value too low.

Ratio not correctly parameterized.

Correct parameterization.

Incorrect input connected. Check assignment of plug ter-minals.

Phase angle • V/I.

Fault in external transformer circuit.

Check transformer circuit .

Transformer circuit incorrectly parameterized.

Compare with system connec-tion diagram. Correct parameters. Compare measurement values on info screen. Transpose current transformer connection. Check polarity of transformer circuit. Correct if necessary. Check circuit. Correct if necessary. Check measurement points. Correct if necessary.

Table 118 Troubleshooting: Incorrect measured values

9.1.4 Parallel operation faults


Parallel operation cannot be activated. • LED not lit up.

"Parallel operation method" parameter deactivated.

Activate "Parallel operation me-thod" parameter Select parallel operation method (see "Se-lecting parallel operation me-thod" on page 152).

CAN bus address of voltage regulator set to "0".

Set CAN bus address (anything but 0)

9 Fault elimination



Problem with CAN bus. • Device not listed.

Voltage regulator incorrectly connected (plug twisted, offset).

Check connections. Connect as shown in connection diagram.

Voltage regulators have the same CAN bus addresses.

Issue different CAN bus ad-dresses Enter CAN bus ad-dress (1) (see "Entering CAN bus address" on page 158).

Table 119 Troubleshooting: Parallel operation

9.1.5 Tap position capture incorrect


Step display incorrect. • Plus or minus sign in-

correct.

Digital input activated. Check wiring. Connect as shown in connection diagram.

"Lower value" analog input not correctly parameterized

Check parameter. Set parameter Lower limit value (%) for input 1 and 2 FB.

Step display incorrect. • Display fluctuates. Interference.

Shield line. Increase distance from source of interference. Lay interference lines separately. Route signal in separate lines (filter, shielded lines).

No step display. • "-" is displayed.

No measurement signal. No L- for digital input.

Connect signal as shown in connection diagram. Check wiring Display UC1 card status FB (see "Querying sta-tus of UC1 card" on page 205)/Display UC2 card status FB (see "Querying status of UC2 card" on page 205). Connect as shown in connection diagram.

9 Fault elimination



No step display. • "?" is displayed.

Impermissible signal combination.

Check wiring Display UC1 card status FB (see "Querying sta-tus of UC1 card" on page 205)/Display UC2 card status FB (see "Querying status of UC2 card" on page 205).

"Motor running" signal present.

Check signal sequence Display input/output status FB (see "Displaying input/output sta-tus" on page 204).

Table 120 Troubleshooting: Tap position capture

9.1.6 Digital inputs


Signal discontinuous. Intermittent DC voltage. Check source of DC voltage. Check signal transmitter. Check wiring.

No signal • Info screen <13>

showing 0.

Supply voltage too low. Reset parameter to factory set-tings.

Table 121 Troubleshooting: Digital inputs

9.1.7 General fault

Characteristics/detail Cause Remedy No function • Supply voltage.

Fuse tripped. Check all fuses. Replace if necessary.

Relays chatter Supply voltage too low. Check supply voltage. Table 122 Troubleshooting: General faults

9.1.8 No solution

If you cannot resolve a problem, please contact Maschinenfabrik Reinhausen. Please have the following data to hand:

• Serial number

9 Fault elimination


This can be found:

Outer right side when viewed from the front

Info screen ( > Info)

Please provide answers to the following questions:

• Has a firmware update been carried out?

• Has there previously been a problem with this device?

• Have you previously contacted Maschinenfabrik Reinhausen about this issue? If yes, then who was the contact?

9 Fault elimination


9.2 Event message

Event message Remark

Undervoltage Message is displayed if the voltage falls below the set "V<" limit value. Parameter setting: (see "Setting the undervol-tage V< limit value" on page 98)

Overvoltage Message is displayed if the voltage exceeds the set "V>" limit value. Parameter setting: (see "Setting the V> overvoltage limit value [%]" on page 101)

Overcurrent Message is displayed in the event of overcurrent. Parameter setting: (see "Setting limit value I> overcurrent" on page 103).

Parameter error With tap synchronization: • The tap positions of the voltage regulators running in pa-

rallel were not the same for longer than the set parallel operation signal delay.

• One of the voltage regulators running in parallel is not signaling a valid tap position.

• Neither of the voltage regulators running in parallel is set as master.

• One of the voltage regulators running in parallel is using the circulating reactive current method.

• There is no information about the system topology.

With circulating reactive current method: • The voltage regulator's circulating reactive current was

longer than the set parallel operation signal delay and greater than the set limit value

• One of the voltage regulators running in parallel is using the tap synchronization method.

• There is no information about the system topology.

• There is a signal on at least one of the group inputs, but no other voltage regulator was found in the same group.

Motor protection Signal issued at "Motor protective switch" input. Function monitoring A message is issued if the voltage regulator detects a control

deviation for 15 minutes and this is not compensated for. Table 123 Possible events

10 Technical Data


10 Technical Data

10.1 Indicator elements

Display LCD, monochrome, graphics-capable 128 x 128 pixels

LEDs 15 LEDs for operation display and messages of which 4 LEDs are freely programmable (3x yel-low, 1x green/red)

Table 124 Indicator elements

10.2 Electrical data

Power supply 110 (-20%)...350 V DC 88...265 V AC Optional: 36...72 V DC or 18...36 V DC

Power consumption 25 VA Table 125 Electrical data

10.3 Inputs and outputs

Control voltage of in-puts

40...250 V DC With pulsating DC voltage, the voltage minimum must always exceed 40 V.

Contact loadability of outputs

min. 12 V / 100 mA max. AC 250 V / 5 A max. DC see diagram

Table 126 Inputs and outputs

10 Technical Data


Figure 42 Maximum contact loadability of outputs with direct current

1 Ohmic load

10.4 Dimensions and weight

Housing (W x H x D)

19-inch plug-in housing in accordance with DIN 41494 Part 5 483 x 133 x 178 mm

Weight 5.0 kg Table 127 Dimensions and weight

10 Technical Data


10.5 Voltage and current measurement

Voltage transformer Measuring range: 49...140 V Effective value: 40...60 Hz Intrinsic consumption: < 1 VA

Current transformer 0.2 / 1 / 5 A Effective value: 40...60 Hz Intrinsic consumption: < 1 VA Overload capacity: 2 x IN (continuously), 40 x IN / 1 s

Measuring error Voltage measuring: < 0.3 % ± 40 ppm/°C Current measuring: < 0.5 % ± 40 ppm/°C

Table 128 Voltage and current measurement

10.6 Ambient conditions

Operating temperature -25°C...+70°C Storage temperature -30°C...+85°C

Table 129 Permissible ambient conditions

10.7 Tests

10.7.1 Electrical safety

EN 61010-1 Safety requirements for electrical measurement and control and regulation equipment and labor-atory instruments

IEC 61131-2 Dielectric test with operating frequency 2.5 kV / 1 min

IEC 60255 Dielectric test with impulse voltage 5 kV, 1.2 / 50 μs

IEC 60 644-1 Level of contamination 2, overvoltage category III Table 130 Electrical safety

10 Technical Data


10.7.2 EMC tests

IEC 61000-4-2 Electrostatic discharges (ESD) 6 kV /8 kV

IEC 61000-4-3 Electromagnetic fields (HF) 10 V/m 80...3000 MHz

IEC 61000-4-4 Fast transients (burst) 2 kV IEC 61000-4-5 Surge transient immunity 2 kV IEC 61000-4-6 HF interference immunity (lines) 10 V, 150

kHz...80 MHz IEC 61000-4-8 Power frequency magnetic field immunity 30 A/m,

50 Hz, continuous IEC 61000-4-11 Voltage dips, short interruptions and voltage vari-

ations immunity tests IEC 61000-4-29 Voltage dips, short interruptions and voltage vari-

ations on d.c. input power port immunity tests IEC 61000-6-2 Immunity requirements for industrial environ-

ments IEC 61000-6-4 Emission standard for industrial environments

Table 131 EMC tests

10.7.3 Environmental durability tests

DIN EN 60529 Degree of protection IP20 IEC 60068-2-1 Dry cold - 25 °C / 20 hours IEC 60068-2-2 Dry heat + 70 °C / 16 hours IEC 60068-2-3 Constant moist heat

+ 40 °C / 93% / 2 days, no dew IEC 60068-2-30 Cyclic moist heat (12 + 12 hours)

+ 55 °C / 93 % / 6 cycles Table 132 Environmental durability tests

11 MR worldwide


11 MR worldwide

Australia Reinhausen Australia Pty. Ltd. Ground Floor 6-10 Geeves Avenue Rockdale N. S. W. 2216 Phone: +61 2 9556 2133 Fax: +61 2 9597 1339 E-mail: [email protected] Brazil MR do Brasil Indústria Mecánica Ltda. Av. Elias Yazbek, 465 CEP: 06803-000 Embu - São Paulo Phone: +55 11 4785 2150 Fax: +55 11 4785 2185 E-mail: [email protected] Canada Reinhausen Canada Inc. 1010 Sherbrooke West, Suite 1800 Montréal, Québec H3A 2R7, Canada Phone: +1 514 286 1075 Fax: +1 514 286 0520 Mobile: +49 170 7807 696 E-mail: [email protected] India Easun-MR Tap Changers Ltd. 612, CTH Road Tiruninravur, Chennai 602 024 Phone: +91 44 26300883 Fax: +91 44 26390881 E-mail: [email protected] Indonesia Pt. Reinhausen Indonesia German Center, Suite 6310, Jl. Kapt. Subijanto Dj. BSD City, Tangerang Phone: +62 21 5315-3183 Fax: +62 21 5315-3184 E-Mail: [email protected] Iran Iran Transfo After Sales Services Co. Zanjan, Industrial Township No. 1 (Alia-bad) Corner of Morad Str. Postal Code 4533144551 E-mail: [email protected]

Italy Reinhausen Italia S.r.l. Via Alserio, 16 20159 Milan Phone: +39 02 6943471 Fax: +39 02 69434766 E-mail: [email protected] Japan MR Japan Corporation German Industry Park 1-18-2 Hakusan, Midori-ku Yokohama 226-0006 Phone: +81 45 929 5728 Fax: +81 45 929 5741 Luxembourg Reinhausen Luxembourg S.A. 72, Rue de Prés L-7333 Steinsel Phone: +352 27 3347 1 Fax: +352 27 3347 99 E-mail: [email protected] Malaysia Reinhausen Asia-Pacific Sdn. Bhd Level 11 Chulan Tower No. 3 Jalan Conlay 50450 Kuala Lumpur Phone: +60 3 2142 6481 Fax: +60 3 2142 6422 E-mail: [email protected] P.R.C. (China) MR China Ltd. (MRT) 开德贸易（上海）有限公司中国上海浦东新区浦东南路360号新上海国际大厦4楼E座邮编： 200120 电话：＋86 21 61634588 传真：＋86 21 61634582 邮箱：[email protected] [email protected]

Russian Federation OOO MR Naberezhnaya Akademika Tupoleva 15, Bld. 2 ("Tupolev Plaza") 105005 Moscow Phone: +7 495 980 89 67 Fax: +7 495 980 89 67 E-mail: [email protected] South Africa Reinhausen South Africa (Pty) Ltd. No. 15, Third Street, Booysens Reserve Johannesburg Phone: +27 11 8352077 Fax: +27 11 8353806 E-Mail: [email protected] South Korea Reinhausen Korea Ltd. Baek Sang Bldg. Room No. 1500 197-28, Kwanhun-Dong, Chongro-Ku Seoul 110-718, Korea Phone: +82 2 767 4909 Fax: +82 2 736 0049 E-mail: [email protected] U.S.A. Reinhausen Manufacturing Inc. 2549 North 9th Avenue Humboldt, TN 38343 Phone: +1 731 784 7681 Fax: +1 731 784 7682 E-mail: [email protected]

1801003/05 EN 04/13 Maschinenfabrik Reinhausen GmbH Falkensteinstrasse 8 93059 Regensburg

Phone: Fax: Email:

+49 941 4090 0 +49 941 4090 7001 [email protected]

www.reinhausen.com

Documents

Protocol description for IEC 61850 - myprotectionguide.com · Voltage regulator TAPCON® 260 Operating Instructions 1801003/05 Protocol description for IEC 61850