REU615_appl_757054_ENf

Relion® 615 series

Voltage Protection and ControlREU615Application Manual

Document ID: 1MRS757054Issued: 2014-01-24

Revision: FProduct version: 5.0

© Copyright 2014 ABB. All rights reserved

CopyrightThis document and parts thereof must not be reproduced or copied without writtenpermission from ABB, and the contents thereof must not be imparted to a thirdparty, nor used for any unauthorized purpose.

The software or hardware described in this document is furnished under a licenseand may be used, copied, or disclosed only in accordance with the terms of suchlicense.

TrademarksABB and Relion are registered trademarks of the ABB Group. All other brand orproduct names mentioned in this document may be trademarks or registeredtrademarks of their respective holders.

WarrantyPlease inquire about the terms of warranty from your nearest ABB representative.

http://www.abb.com/substationautomation

HTTP://WWW.ABB.COM/SUBSTATIONAUTOMATION

DisclaimerThe data, examples and diagrams in this manual are included solely for the conceptor product description and are not to be deemed as a statement of guaranteedproperties. All persons responsible for applying the equipment addressed in thismanual must satisfy themselves that each intended application is suitable andacceptable, including that any applicable safety or other operational requirementsare complied with. In particular, any risks in applications where a system failure and/or product failure would create a risk for harm to property or persons (including butnot limited to personal injuries or death) shall be the sole responsibility of theperson or entity applying the equipment, and those so responsible are herebyrequested to ensure that all measures are taken to exclude or mitigate such risks.

This product has been designed to be connected and communicate data andinformation via a network interface which should be connected to a securenetwork. It is the sole responsibility of the person or entity responsible for networkadministration to ensure a secure connection to the network and to take thenecessary measures (such as, but not limited to, installation of firewalls, applicationof authentication measures, encryption of data, installation of anti virus programs,etc.) to protect the product and the network, its system and interface included,against any kind of security breaches, unauthorized access, interference, intrusion,leakage and/or theft of data or information. ABB is not liable for any such damagesand/or losses.

This document has been carefully checked by ABB but deviations cannot becompletely ruled out. In case any errors are detected, the reader is kindly requestedto notify the manufacturer. Other than under explicit contractual commitments, inno event shall ABB be responsible or liable for any loss or damage resulting fromthe use of this manual or the application of the equipment.

ConformityThis product complies with the directive of the Council of the EuropeanCommunities on the approximation of the laws of the Member States relating toelectromagnetic compatibility (EMC Directive 2004/108/EC) and concerningelectrical equipment for use within specified voltage limits (Low-voltage directive2006/95/EC). This conformity is the result of tests conducted by ABB inaccordance with the product standards EN 50263 and EN 60255-26 for the EMCdirective, and with the product standards EN 60255-1 and EN 60255-27 for the lowvoltage directive. The product is designed in accordance with the internationalstandards of the IEC 60255 series.

Table of contents

Section 1 Introduction.......................................................................5This manual........................................................................................5Intended audience..............................................................................5Product documentation.......................................................................6

Product documentation set............................................................6Document revision history.............................................................6Related documentation..................................................................7

Symbols and conventions...................................................................7Symbols.........................................................................................7Document conventions..................................................................8Functions, codes and symbols......................................................8

Section 2 REU615 overview...........................................................11Overview...........................................................................................11

Product version history................................................................12PCM600 and IED connectivity package version..........................12

Operation functionality......................................................................13Optional functions........................................................................13

Physical hardware............................................................................13Local HMI.........................................................................................15

Display.........................................................................................16LEDs............................................................................................17Keypad........................................................................................17

Web HMI...........................................................................................17Authorization.....................................................................................18

Audit trail......................................................................................19Communication.................................................................................21

Self-healing Ethernet ring............................................................22Ethernet redundancy...................................................................23Process bus.................................................................................25Secure communication................................................................27

Section 3 REU615 standard configurations...................................29Standard configurations....................................................................29

Addition of control functions for primary devices and theuse of binary inputs and outputs..................................................30

Connection diagrams........................................................................31Standard configuration A..................................................................34

Applications.................................................................................34Functions.....................................................................................35

Table of contents

REU615 1Application Manual

Default I/O connections..........................................................36Default disturbance recorder settings.....................................37

Functional diagrams....................................................................39Functional diagrams for protection.........................................39Functional diagrams for disturbance recorder........................48Functional diagrams for control and interlocking....................48Functional diagrams for measurement functions...................49Functional diagrams for I/O and alarm LEDs.........................51Other functions.......................................................................54

Standard configuration B..................................................................54Applications.................................................................................54Functions.....................................................................................55

Default I/O connections..........................................................55Default disturbance recorder settings.....................................57

Functional diagrams....................................................................58Functional diagrams for protection.........................................59Functional diagrams for disturbance recorder........................62Functional diagrams for condition monitoring.........................63Functional diagrams for control and interlocking....................64Functional diagrams for measurement functions...................67Functional diagrams for IO and alarm LEDs..........................69Functional diagrams for other timer logics.............................73Other functions.......................................................................73

Section 4 Requirements for measurement transformers................75Current transformers........................................................................75

Current transformer requirements for non-directionalovercurrent protection..................................................................75

Current transformer accuracy class and accuracy limitfactor......................................................................................75Non-directional overcurrent protection...................................76Example for non-directional overcurrent protection................77

Section 5 IED physical connections...............................................79Inputs................................................................................................79

Energizing inputs.........................................................................79Phase currents.......................................................................79Residual current.....................................................................79Phase voltages.......................................................................79Residual voltage.....................................................................80

RTD/mA inputs............................................................................80Auxiliary supply voltage input......................................................81Binary inputs................................................................................81

Outputs.............................................................................................83

Table of contents

2 REU615Application Manual

Outputs for tripping and controlling..............................................83Outputs for signalling...................................................................83IRF...............................................................................................85

Section 6 Glossary.........................................................................87

Table of contents


4

Section 1 Introduction

1.1 This manual

The application manual contains application descriptions and setting guidelinessorted per function. The manual can be used to find out when and for what purposea typical protection function can be used. The manual can also be used whencalculating settings.

1.2 Intended audience

This manual addresses the protection and control engineer responsible forplanning, pre-engineering and engineering.

The protection and control engineer must be experienced in electrical powerengineering and have knowledge of related technology, such as protection schemesand principles.

1MRS757054 F Section 1Introduction


1.3 Product documentation

1.3.1 Product documentation set

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Quick start guide

Quick installation guide

Brochure

Product guide

Operation manual

Installation manual

Connection diagram

Engineering manual

Technical manual

Application manual

Communication protocol manual

IEC 61850 Engineering guide

Point list manual

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GUID-12DC16B2-2DC1-48DF-8734-0C8B7116124C V1 EN

Figure 1: The intended use of documents during the product life cycle

Product series- and product-specific manuals can be downloadedfrom the ABB Website http://www.abb.com/relion.

1.3.2 Document revision historyDocument revision/date Product version HistoryA/2010-06-11 3.0 First release

B/2010-06-29 3.0 Terminology updated

C/2010-09-24 3.0 Content updated

D/2012-05-11 4.0 Content updated to correspond to theproduct version

E/2013-02-21 4.0 FP1 Content updated to correspond to theproduct version

F/2014-01-24 5.0 Content updated to correspond to theproduct version

Section 1 1MRS757054 FIntroduction


http://www.abb.com/relion

Download the latest documents from the ABB Websitehttp://www.abb.com/substationautomation.

1.3.3 Related documentationName of the document Document IDModbus Communication Protocol Manual 1MRS756468

DNP3 Communication Protocol Manual 1MRS756709

IEC 60870-5-103 Communication Protocol Manual 1MRS756710

IEC 61850 Engineering Guide 1MRS756475

Engineering Manual 1MRS757121

Installation Manual 1MRS756375

Operation Manual 1MRS756708

Technical Manual 1MRS756887

1.4 Symbols and conventions

1.4.1 Symbols

The electrical warning icon indicates the presence of a hazardwhich could result in electrical shock.

The warning icon indicates the presence of a hazard which couldresult in personal injury.

The caution icon indicates important information or warning relatedto the concept discussed in the text. It might indicate the presenceof a hazard which could result in corruption of software or damageto equipment or property.

The information icon alerts the reader of important facts andconditions.

The tip icon indicates advice on, for example, how to design yourproject or how to use a certain function.




Although warning hazards are related to personal injury, it is necessary tounderstand that under certain operational conditions, operation of damagedequipment may result in degraded process performance leading to personal injuryor death. Therefore, comply fully with all warning and caution notices.

1.4.2 Document conventionsA particular convention may not be used in this manual.

• Abbreviations and acronyms are spelled out in the glossary. The glossary alsocontains definitions of important terms.

• Push button navigation in the LHMI menu structure is presented by using thepush button icons.To navigate between the options, use and .

• Menu paths are presented in bold.Select Main menu/Settings.

• LHMI messages are shown in Courier font.To save the changes in non-volatile memory, select Yes and press .

• Parameter names are shown in italics.The function can be enabled and disabled with the Operation setting.

• Parameter values are indicated with quotation marks.The corresponding parameter values are "On" and "Off".

• IED input/output messages and monitored data names are shown in Courier font.When the function starts, the START output is set to TRUE.

• This document assumes that the parameter setting visibility is "Advanced".

1.4.3 Functions, codes and symbolsTable 1: Functions included in the IED

Function IEC 61850 IEC 60617 IEC-ANSIProtection

Three-phase non-directional overcurrentprotection, low stage PHLPTOC1 3I> (1) 51P-1 (1)

Three-phase non-directional overcurrentprotection, high stage PHHPTOC1 3I>> (1) 51P-2 (1)

Three-phase non-directional overcurrentprotection, instantaneous stage PHIPTOC1 3I>>> (1) 50P/51P (1)

Residual overvoltage protection ROVPTOV1 Uo> (1) 59G (1)

ROVPTOV2 Uo> (2) 59G (2)

ROVPTOV3 Uo> (3) 59G (3)

Three-phase undervoltage protection PHPTUV1 3U< (1) 27 (1)

PHPTUV2 3U< (2) 27 (2)

PHPTUV3 3U< (3) 27 (3)

Table continues on next page



Function IEC 61850 IEC 60617 IEC-ANSIThree-phase overvoltage protection PHPTOV1 3U> (1) 59 (1)

PHPTOV2 3U> (2) 59 (2)

PHPTOV3 3U> (3) 59 (3)

Positive-sequence undervoltage protection PSPTUV1 U1< (1) 47U+ (1)

PSPTUV2 U1< (2) 47U+ (2)

Negative-sequence overvoltage protection NSPTOV1 U2> (1) 47O- (1)

NSPTOV2 U2> (2) 47O- (2)

Frequency protection FRPFRQ1 f>/f<,df/dt (1) 81 (1)

FRPFRQ2 f>/f<,df/dt (2) 81 (2)





Three-phase thermal overload protection forpower transformers, two time constants T2PTTR1 3Ith>T (1) 49T (1)

Master trip TRPPTRC1 Master Trip (1) 94/86 (1)

TRPPTRC2 Master Trip (2) 94/86 (2)

Arc protection ARCSARC1 ARC (1) 50L/50NL (1)

ARCSARC2 ARC (2) 50L/50NL (2)

ARCSARC3 ARC (3) 50L/50NL (3)

Multi-purpose protection1) MAPGAPC1 MAP (1) MAP (1)

MAPGAPC2 MAP (2) MAP (2)




















Function IEC 61850 IEC 60617 IEC-ANSILoad shedding and restoration LSHDPFRQ1 UFLS/R (1) 81LSH (1)

LSHDPFRQ2 UFLS/R (2) 81LSH (2)




Control

Circuit-breaker control CBXCBR1 I <-> O CB (1) I <-> O CB (1)

Disconnector control DCXSWI1 I <-> O DCC(1) I <-> O DCC (1)

DCXSWI2 I <-> O DCC(2) I <-> O DCC (2)

Earthing switch control ESXSWI1 I <-> O ESC (1) I <-> O ESC (1)

Disconnector position indication DCSXSWI1 I <-> O DC (1) I <-> O DC (1)

DCSXSWI2 I <-> O DC (2) I <-> O DC (2)

DCSXSWI3 I <-> O DC (3) I <-> O DC (3)

Earthing switch indication ESSXSWI1 I <-> O ES (1) I <-> O ES (1)

ESSXSWI2 I <-> O ES (2) I <-> O ES (2)

Tap changer position indication TPOSSLTC1 TPOSM (1) 84M (1)

Tap changer control with voltage regulator OLATCC1 COLTC (1) 90V (1)

Synchronism and energizing check SECRSYN1 SYNC (1) 25 (1)

Condition monitoring

Trip circuit supervision TCSSCBR1 TCS (1) TCM (1)

TCSSCBR2 TCS (2) TCM (2)

Current circuit supervision CCRDIF1 MCS 3I (1) MCS 3I (1)

Fuse failure supervision SEQRFUF1 FUSEF (1) 60 (1)

Runtime counter for machines and devices MDSOPT1 OPTS (1) OPTM (1)

Measurement

Disturbance recorder RDRE1 DR (1) DFR (1)

Load profile record LDPMSTA1 LOADPROF(1)

LOADPROF(1)

Three-phase current measurement CMMXU1 3I (1) 3I (1)

Sequence current measurement CSMSQI1 I1, I2, I0 (1) I1, I2, I0 (1)

Three-phase voltage measurement VMMXU1 3U (1) 3V (1)

VMMXU2 3U (2) 3V (2)

Residual voltage measurement RESVMMXU1 Uo (1) Vn (1)

Sequence voltage measurement VSMSQI1 U1, U2, U0 (1) V1, V2, V0 (1)

Three-phase power and energy measurement PEMMXU1 P, E (1) P, E (1)

RTD/mA measurement XRGGIO130 X130 (RTD) (1) X130 (RTD) (1)

Frequency measurement FMMXU1 f (1) f (1)

IEC 61850-9-2 LE (Voltage sharing)2) SMVSENDER SMVSENDER SMVSENDER

1) For example, used for RTD/mA based protection or analog GOOSE2) Only available with redundant Ethernet communication modules



Section 2 REU615 overview

2.1 Overview

The voltage protection and control IED, REU615 is available in two standardconfigurations, denoted A and B. Configuration A is preadapted for voltage andfrequency-based protection schemes in utility and industrial power systems anddistribution systems including networks with distributed power generation. The Bconfiguration is designed for automatic voltage regulation of power transformersequipped with an on-load tap-changer. Both configurations also feature additionalCB control, measuring and supervising functions. REU615 is a member of ABB’sRelion® product family and part of its 615 protection and control product series.The 615 series IEDs are characterized by their compactness and withdrawable–unitdesign.

Re-engineered from the ground up, the 615 series has been designed to unleash thefull potential of the IEC 61850 standard for communication and interoperabilitybetween substation automation devices. Once the standard configuration IED hasbeen given the application-specific settings, it can directly be put into service.

The 615 series IEDs support a range of communication protocols including IEC61850 with GOOSE messaging, IEC 61850-9-2 LE (except in RED615), IEC60870-5-103, Modbus® and DNP3. Profibus DPV1 communication protocol issupported by using the protocol converter SPA-ZC 302.

1MRS757054 F Section 2REU615 overview


2.1.1 Product version historyProduct version Product history3.0 Product released

4.0 • Additions/changes for configurations A-C• Dual fibre optic Ethernet communication option (COM0032)• Generic control point (SPCGGIO) function blocks• Enhancements for voltage regulator• Additional logic blocks• Button object for SLD• Controllable disconnector and earth switch objects for SLD• Additional multi-purpose protection instances• Increased maximum amount of events and fault records

4.0 FP1 • High-availability seamless redundancy (HSR) protocol• Parallel redundancy protocol (PRP-1)• Parallel use of IEC 61850 and DNP3 protocols• Parallel use of IEC 61850 and IEC 60870-5-103 protocols• Two selectable indication colors for LEDs (red or green)• Online binary signal monitoring with PCM600

5.0 • New layout in Application Configuration tool for all configurations• Support for IEC 61850-9-2 LE• IEEE 1588 v2 time synchronization• New controllable tap changer object available for SLD• Load profile recorder• High-speed binary outputs• Optional RTD inputs• Profibus adapter support• Support for multiple SLD pages• Import/export of settings via WHMI• Setting usability improvements• HMI event filtering tool

2.1.2 PCM600 and IED connectivity package version• Protection and Control IED Manager PCM600 Ver.2.6 or later• REU615 Connectivity Package Ver.5.0 or later

• Parameter Setting• Signal Monitoring• Event Viewer• Disturbance Handling• Application Configuration• Signal Matrix• Graphical Display Editor• Communication Management• IED User Management• IED Compare• Firmware Update• Fault Record tool• Load Record Profile• Lifecycle Traceability• Configuration Wizard

Section 2 1MRS757054 FREU615 overview


• AR Sequence Visualizer• Label Printing• IEC 61850 Configuration

Download connectivity packages from the ABB Websitehttp://www.abb.com/substationautomation or directly with theUpdate Manager in PCM600.

2.2 Operation functionality

2.2.1 Optional functions• Arc protection (configuration A only)• Modbus TCP/IP or RTU/ASCII• IEC 60870-5-103• DNP3 TCP/IP or serial• RTD/mA measurements and multi-purpose protection (configuration B only)• IEC 61850-9-2 LE• IEEE 1588 v2 time synchronization

2.3 Physical hardware

The IED consists of two main parts: plug-in unit and case. The content depends onthe ordered functionality.




Table 2: Plug-in unit and case

Main Slot ID Content optionsPlug-inunit

- HMI Small (5 lines, 20 characters)Large (10 lines, 20 characters)

X100 Auxiliary power/BOmodule

48-250 V DC/100-240 V AC; or 24-60 V DC2 normally-open PO contacts1 change-over SO contact1 normally open SO contact2 double-pole PO contacts with TCS1 dedicated internal fault output contact

X110 BIO module 8 binary inputs4 SO contacts

Optional for configuration A:8 binary inputs3 HSO contacts

X120 AI/BI module Only with configuration B:3 phase current inputs (1/5 A)1 residual current input (1/5 A)3 phase voltage inputs (60-210 V)

Case X130 AI/BI module Only with configuration A:3 phase voltage inputs (60-210 V)1 residual voltage input (60-210 V)1 reference voltage input for SECRSYN1 (60-210 V)4 binary inputs

Optional RTD/mA module Optional for configuration B:2 generic mA inputs6 RTD sensor inputs

Optional BIO module Optional for configuration B:6 binary inputs3 SO contacts

X000 Optional communicationmodule

See technical manual for details about differenttype of communication modules.

Rated values of the current and voltage inputs are basic setting parameters of theIED. The binary input thresholds are selectable within the range 16…176 V DC byadjusting the binary input setting parameters.

The connection diagrams of different hardware modules are presented in this manual.

See the installation manual for more information about the case andthe plug-in unit.



Table 3: Input/output overview

Std. conf. Order code digit Analog channels Binary channels 5-6 7-8 CT VT BI BO RTD mA

A EA

AD - 5 12 4 PO +6 SO

- -

FE- 5 12 4 PO +

2 SO +3 HSO

- -

BCA BB 4 3 14 4 PO +

9 SO- -

CC AH 4 3 8 4 PO +6 SO

6 2

2.4 Local HMI

The LHMI is used for setting, monitoring and controlling the IED. The LHMIcomprises the display, buttons, LED indicators and communication port.

REF615

Overcurrent

Dir. earth-fault

Voltage protection

Phase unbalance

Thermal overload

Breaker failure

Disturb. rec. Triggered

CB condition monitoring

Supervision

Arc detected

Autoreclose shot in progr.

A070704 V4 EN

Figure 2: Example of the LHMI



2.4.1 DisplayThe LHMI includes a graphical display that supports two character sizes. Thecharacter size depends on the selected language. The amount of characters androws fitting the view depends on the character size.

Table 4: Small display

Character size1) Rows in the view Characters per rowSmall, mono-spaced (6x12 pixels) 5 20

Large, variable width (13x14 pixels) 4 8 or more

1) Depending on the selected language

Table 5: Large display

Character size1) Rows in the view Characters per rowSmall, mono-spaced (6x12 pixels) 10 20

Large, variable width (13x14 pixels) 8 8 or more

1) Depending on the selected language

The display view is divided into four basic areas.

1 2

3 4A070705 V3 EN

Figure 3: Display layout

1 Header

2 Icon

3 Content

4 Scroll bar (displayed when needed)



2.4.2 LEDsThe LHMI includes three protection indicators above the display: Ready, Start andTrip.

There are 11 matrix programmable LEDs on front of the LHMI. The LEDs can beconfigured with PCM600 and the operation mode can be selected with the LHMI,WHMI or PCM600.

2.4.3 KeypadThe LHMI keypad contains push-buttons which are used to navigate in differentviews or menus. With the push-buttons you can give open or close commands toobjects in the primary circuit, for example, a circuit breaker, a contactor or adisconnector. The push-buttons are also used to acknowledge alarms, resetindications, provide help and switch between local and remote control mode.

A071176 V1 EN

Figure 4: LHMI keypad with object control, navigation and command push-buttons and RJ-45 communication port

2.5 Web HMI

The WHMI allows secure access to the IED via a Web browser. The supportedWeb browser versions are Internet Explorer 8.0, 9.0 and 10.0. When the SecureCommunication parameter in the IED is activated, the Web server is forced to takea secured (HTTPS) connection to WHMI using TLS encryption.

WHMI is disabled by default.

WHMI offers several functions.



• Programmable LEDs and event lists• System supervision• Parameter settings• Measurement display• Disturbance records• Phasor diagram• Single-line diagram• Importing/Exporting parameters

The menu tree structure on the WHMI is almost identical to the one on the LHMI.

A070754 V5 EN

Figure 5: Example view of the WHMI

The WHMI can be accessed locally and remotely.

• Locally by connecting the laptop to the IED via the front communication port.• Remotely over LAN/WAN.

2.6 Authorization

The user categories have been predefined for the LHMI and the WHMI, each withdifferent rights and default passwords.



The default passwords can be changed with Administrator user rights.

User authorization is disabled by default for LHMI but WHMIalways uses authorization.

Table 6: Predefined user categories

Username User rightsVIEWER Read only access

OPERATOR • Selecting remote or local state with (only locally)• Changing setting groups• Controlling• Clearing indications

ENGINEER • Changing settings• Clearing event list• Clearing disturbance records• Changing system settings such as IP address, serial baud rate

or disturbance recorder settings• Setting the IED to test mode• Selecting language

ADMINISTRATOR • All listed above• Changing password• Factory default activation

For user authorization for PCM600, see PCM600 documentation.

2.6.1 Audit trailThe IED offers a large set of event-logging functions. Normal process-relatedevents can be viewed by the normal user with Event Viewer in PCM600. Criticalsystem and IED security-related events are logged to a separate nonvolatile audittrail for the administrator.

Audit trail is a chronological record of system activities that allows thereconstruction and examination of the sequence of events and changes in an event.Past user and process events can be examined and analyzed in a consistent methodwith the help of Event List and Event Viewer in PCM600. The IED stores 2048system events to the nonvolatile audit trail. Additionally, 1024 process events arestored in a nonvolatile event list. Both the audit trail and event list work accordingto the FIFO principle.

User audit trail is defined according to the selected set of requirements from IEEE1686. The logging is based on predefined usernames or user categories. The useraudit trail events are accessible with IEC 61850-8-1, PCM600, LHMI and WHMI.



Table 7: Audit trail events

Audit trail event DescriptionConfiguration change Configuration files changed

Firmware change

Setting group remote User changed setting group remotely

Setting group local User changed setting group locally

Control remote DPC object control remote

Control local DPC object control local

Test on Test mode on

Test off Test mode off

Setting commit Settings have been changed

Time change Time changed directly by the user. Note that this is not usedwhen the IED is synchronised properly by the appropriateprotocol (SNTP, IRIG-B, IEEE 1588 v2).

View audit log Administrator accessed audit trail

Login Successful login from IEC 61850-8-1 (MMS), WHMI, FTP orLHMI.

Logout Successful logout from IEC 61850-8-1 (MMS), WHMI, FTPor LHMI.

Firmware reset Reset issued by user or tool

Audit overflow Too many audit events in the time period

Attached to retrofit test case Unit has been attached to retrofit case

Removed from retrofit test case Unit has been removed retrofit case

Reset trips Reset latched trips (TRPPTRC*)

Violation remote Unsuccessful login attempt from IEC 61850-8-1 (MMS),WHMI, FTP or LHMI.

Violation local Unsuccessful login attempt from IEC 61850-8-1 (MMS),WHMI, FTP or LHMI.

PCM600 Event Viewer can be used to view the audit trail events together withnormal events. Since only the administrator has the right to read audit trail,authorization must be properly configured in PCM600. The audit trail cannot bereset but PCM600 Event Viewer can filter data. Some of the audit trail events areinteresting also as normal process events.

To expose the audit trail events also as normal process events,define the level parameter via Configuration/Authorization/Authority logging.



Table 8: Comparison of authority logging levels

Audit trail event Authority logging level

NoneConfiguration change

Settinggroup

Settinggroup,control

Settingsedit

All

Configuration change ● ● ● ● ●

Firmware change ● ● ● ● ●

Firmware change fail ● ● ● ● ●

Attached to retrofit testcase

● ● ● ● ●

Removed from retrofittest case

● ● ● ● ●

Reset trips ● ● ●

Setting group remote ● ● ● ●

Setting group local ● ● ● ●

Control remote ● ● ●

Control local ● ● ●

Test on ● ● ●

Test off ● ● ●

Setting commit ● ●

Time change ●

View audit log ●

Login ●

Logout ●

Firmware reset ●

Audit overflow ●

2.7 Communication

The IED supports a range of communication protocols including IEC 61850, IEC61850-9-2 LE, IEC 60870-5-103, Modbus® and DNP3. Profibus DPV1communication protocol is supported by using the protocol converter SPA-ZC 302.Operational information and controls are available through these protocols.However, some communication functionality, for example, horizontalcommunication between the IEDs, is only enabled by the IEC 61850communication protocol.

The IEC 61850 communication implementation supports all monitoring andcontrol functions. Additionally, parameter settings, disturbance recordings andfault records can be accessed using the IEC 61850 protocol. Disturbance recordingsare available to any Ethernet-based application in the standard COMTRADE fileformat. The IED can send and receive binary signals from other IEDs (so-calledhorizontal communication) using the IEC61850-8-1 GOOSE profile, where the



highest performance class with a total transmission time of 3 ms is supported.Furthermore, the IED supports sending and receiving of analog values usingGOOSE messaging. The IED meets the GOOSE performance requirements fortripping applications in distribution substations, as defined by the IEC 61850standard.

The IED can support five simultaneous clients. If PCM600 reserves one clientconnection, only four client connections are left, for example, for IEC 61850 andModbus.

All communication connectors, except for the front port connector, are placed onintegrated optional communication modules. The IED can be connected to Ethernet-based communication systems via the RJ-45 connector (100Base-TX) or the fibre-optic LC connector (100Base-FX).

2.7.1 Self-healing Ethernet ringFor the correct operation of self-healing loop topology, it is essential that theexternal switches in the network support the RSTP protocol and that it is enabled inthe switches. Otherwise, connecting the loop topology can cause problems to thenetwork. The IED itself does not support link-down detection or RSTP. The ringrecovery process is based on the aging of the MAC addresses, and the link-up/link-down events can cause temporary breaks in communication. For a betterperformance of the self-healing loop, it is recommended that the external switchfurthest from the IED loop is assigned as the root switch (bridge priority = 0) andthe bridge priority increases towards the IED loop. The end links of the IED loopcan be attached to the same external switch or to two adjacent external switches. Aself-healing Ethernet ring requires a communication module with at least twoEthernet interfaces for all IEDs.

Managed Ethernet switchwith RSTP support

Managed Ethernet switchwith RSTP support

Client BClient A

Network ANetwork B

GUID-283597AF-9F38-4FC7-B87A-73BFDA272D0F V3 EN

Figure 6: Self-healing Ethernet ring solution



The Ethernet ring solution supports the connection of up to 30IEDs. If more than 30 IEDs are to be connected, it is recommendedthat the network is split into several rings with no more than 30IEDs per ring. Each IED has a 50-μs store-and-forward delay, andto fullfill the performance requirements for fast horizontalcommunication, the ring size is limited to 30 IEDs.

2.7.2 Ethernet redundancyIEC 61850 specifies a network redundancy scheme that improves the systemavailability for substation communication. It is based on two complementaryprotocols defined in the IEC 62439-3 standard: parallel redundancy protocol PRP-1and high-availability seamless redundancy HSR protocol. Both protocols rely onthe duplication of all transmitted information via two Ethernet ports for one logicalnetwork connection. Therefore, both are able to overcome the failure of a link orswitch with a zero-switchover time, thus fulfilling the stringent real-timerequirements for the substation automation horizontal communication and timesynchronization.

PRP specifies that each device is connected in parallel to two local area networks.HSR applies the PRP principle to rings and to the rings of rings to achieve cost-effective redundancy. Thus, each device incorporates a switch element thatforwards frames from port to port. The HSR/PRP option is available for REF615,REM615, RET615, REU615 and REV615.

PRPEach PRP node, called a doubly attached node with PRP (DAN), is attached to twoindependent LANs operated in parallel. These parallel networks in PRP are calledLAN A and LAN B. The networks are completely separated to ensure failureindependence, and they can have different topologies. Both networks operate inparallel, thus providing zero-time recovery and continuous checking of redundancyto avoid communication failures. Non-PRP nodes, called singly attached nodes(SANs), are either attached to one network only (and can therefore communicateonly with DANs and SANs attached to the same network), or are attached througha redundancy box, a device that behaves like a DAN.



Ethernet switchIEC 61850 PRPEthernet switch

REF615 REF620 RET620 REM620 REF615

SCADACOM600

GUID-334D26B1-C3BD-47B6-BD9D-2301190A5E9D V1 EN

Figure 7: PRP solution

In case a laptop or a PC workstation is connected as a non-PRP node to one of thePRP networks, LAN A or LAN B, it is recommended to use a redundancy boxdevice or an Ethernet switch with similar functionality between the PRP networkand SAN to remove additional PRP information from the Ethernet frames. In somecases, default PC workstation adapters are not able to handle the maximum-lengthEthernet frames with the PRP trailer.

There are different alternative ways to connect a laptop or a workstation as SAN toa PRP network.

• Via an external redundancy box (RedBox) or a switch capable of connecting toPRP and normal networks

• By connecting the node directly to LAN A or LAN B as SAN• By connecting the node to the IED interlink port

HSRHSR applies the PRP principle of parallel operation to a single ring, treating thetwo directions as two virtual LANs. For each frame sent, a node, DAN, sends twoframes, one over each port. Both frames circulate in opposite directions over thering and each node forwards the frames it receives, from one port to the other.When the originating node receives a frame sent to itself, it discards that to avoidloops; therefore, no ring protocol is needed. Individually attached nodes, SANs,such as laptops and printers, must be attached through a “redundancy box” that actsas a ring element. For example, a 615 or 620 series IED with HSR support can beused as a redundancy box.



GUID-207430A7-3AEC-42B2-BC4D-3083B3225990 V1 EN

Figure 8: HSR solution

2.7.3 Process busProcess bus IEC 61850-9-2 defines the transmission of Sampled Measured Valueswithin the substation automation system. International Users Group created aguideline IEC 61850-9-2 LE that defines an application profile of IEC 61850-9-2to facilitate implementation and enable interoperability. Process bus is used fordistributing process data from the primary circuit to all process bus compatibleIEDs in the local network in a real-time manner. The data can then be processed byany IED to perform different protection, automation and control functions.

UniGear Digital switchgear concept relies on the process bus together with currentand voltage sensors. The process bus enables several advantages for the UniGearDigital like simplicity with reduced wiring, flexibility with data availability to allIEDs, improved diagnostics and longer maintenance cycles.

With process bus the galvanic interpanel wiring for sharing busbar voltage valuecan be replaced with Ethernet communication. Transmitting measurement samplesover process bus brings also higher error detection because the signal transmissionis automatically supervised. Additional contribution to the higher availability is thepossibility to use redundant Ethernet network for transmitting SMV signals.



GUID-2371EFA7-4369-4F1A-A23F-CF0CE2D474D3 V1 EN

Figure 9: Process bus application

The 615 series supports IEC 61850 process bus with sampled values of analogphase voltages. The measured values are transferred as sampled values using theIEC 61850-9-2 LE protocol which uses the same physical Ethernet network as theIEC 61850-8-1 station bus. The intended application for sampled values is sharingthe measured phase voltages from one 615 series IED to other IEDs with phasevoltage based functions and 9-2 support.

The 615 series IEDs with process bus based applications use IEEE 1588 v2Precision Time Protocol (PTP) according to IEEE C37.238-2011 Power Profile forhigh accuracy time synchronization. With IEEE 1588 v2, the cabling infrastructurerequirement is reduced by allowing time synchronization information to betransported over the same Ethernet network as the data communications.



GUID-7C56BC1F-F1B2-4E74-AB8E-05001A88D53D V2 EN

Figure 10: Example network topology with process bus, redundancy and IEEE1588 v2 time synchronization

The process bus option is available for REF615, REM615, RET615, REU615 andREV615. See the IEC 61850 engineering guide for detailed system requirementsand configuration details.

2.7.4 Secure communicationThe IED supports secure communication for WHMI and file transfer protocol. Ifthe Secure Communication parameter is activated, protocols require TLS basedencryption method from the client. In this case WHMI must be connected from aWeb browser using the HTTPS protocol and in case of file transfer the client mustuse FTPS.



28

Section 3 REU615 standard configurations

3.1 Standard configurations

REU615 is available in two standard configurations. The standard signalconfiguration can be altered by means of the signal matrix or the graphicalapplication functionality of the Protection and Control IED Manager PCM600.Further, the application configuration functionality of PCM600 supports thecreation of multi-layer logic functions using various logical elements, includingtimers and flip-flops. By combining protection functions with logic functionblocks, the IED configuration can be adapted to user-specific applicationrequirements.

The IED is delivered from the factory with default connections described in thefunctional diagrams for binary inputs, binary outputs, function-to-functionconnections and alarm LEDs. The positive measuring direction of directionalprotection functions is towards the outgoing feeder.

Table 9: Standard configurations

Description Std.conf.Voltage and frequency based protection and measurement functions, synchrocheckand load shedding A

Automatic voltage regulator B

Table 10: Supported functions

Function IEC 61850 A B

Protection1)

Three-phase non-directional overcurrent protection, low stage PHLPTOC 1Three-phase non-directional overcurrent protection, high stage PHHPTOC 1Three-phase non-directional overcurrent protection, instantaneous stage PHIPTOC 1Residual overvoltage protection ROVPTOV 3 2) Three-phase undervoltage protection PHPTUV 3 3Three-phase overvoltage protection PHPTOV 3 3Positive-sequence undervoltage protection PSPTUV 2 Negative-sequence overvoltage protection NSPTOV 2 Frequency protection FRPFRQ 6 Three-phase thermal overload protection for power transformers, two timeconstants T2PTTR 1

Master trip TRPPTRC 2 2 3)

Arc protection ARCSARC (3) 4)

Multi-purpose protection 3)5) MAPGAPC 18 18Load shedding and restoration LSHDPFRQ 5 Control


1MRS757054 F Section 3REU615 standard configurations


Function IEC 61850 A BCircuit-breaker control CBXCBR 1 3) 1

Disconnector control 3) DCXSWI 2 2

Earthing switch control 3) ESXSWI 1 1

Disconnector position indication 3) DCSXSWI 3 3

Earthing switch indication 3) ESSXSWI 2 2Tap changer position indication TPOSSLTC 1Tap changer control with voltage regulator OLATCC 1Synchronism and energizing check SECRSYN 1 Condition monitoringTrip circuit supervision TCSSCBR 2 3) 2Current circuit supervision CCRDIF 1Fuse failure supervision SEQRFUF 1

Runtime counter for machines and devices 3) MDSOPT 1 1MeasurementDisturbance recorder RDRE 1 1Load profile record LDPMSTA 1 1Three-phase current measurement CMMXU 1Sequence current measurement CSMSQI 1Three-phase voltage measurement VMMXU 2 1Residual voltage measurement RESVMMXU 1 Sequence voltage measurement VSMSQI 1 1Three-phase power and energy measurement PEMMXU 1RTD/mA measurement XRGGIO130 (1)Frequency measurement FMMXU 1

IEC 61850-9-2 LE (Voltage sharing) 6) SMVSENDER (1) (1)1, 2, ... = number of included instances() = optional

1) The instances of a protection function represent the number of identical protection function blocks available in the standard configuration.2) Uo selectable by parameter, "Uo measured" as default3) Must be added with Application Configuration to be available in Signal Matrix and in IED4) Light only5) Multi-purpose protection is used, for example, for RTD/mA-based protection, or analog GOOSE.6) Only available with COM0031-0034

3.1.1 Addition of control functions for primary devices and theuse of binary inputs and outputsIf extra control functions intended for controllable primary devices are added to theconfiguration, additional binary inputs and/or outputs are needed to complementthe standard configuration.

If the number of inputs and/or outputs in a standard configuration is not sufficient,it is possible either to modify the chosen IED standard configuration in order torelease some binary inputs or binary outputs which have originally been configuredfor other purposes, or to integrate an external input/output module, for exampleRIO600, to the IED.

The external I/O module’s binary inputs and outputs can be used for the less time-critical binary signals of the application. The integration enables releasing someinitially reserved binary inputs and outputs of the IED’s standard configuration.

Section 3 1MRS757054 FREU615 standard configurations


The suitability of the IED’s binary outputs which have been selected for primarydevice control should be carefully verified, for example make and carry andbreaking capacity. If the requirements for the primary device control circuit are notmet, using external auxiliary relays should be considered.

3.2 Connection diagrams

GUID-E8E4A6F1-57F5-4E53-AACF-FA95E7D92D83 V1 EN

Figure 11: Connection diagram for the A configuration (voltage protection withphase-to-phase voltage measurement)



GUID-46B7ECD1-0F3F-4DCA-8144-8A485D02061A V1 EN

Figure 12: Connection diagram for the A configuration (voltage protection withphase-to-earth voltage measurement)



GUID-64ADD3D1-99D0-458B-8E28-5023277CFD6C V1 EN

Figure 13: Connection diagram for the B configuration (on-load tap changercontrol with phase-to-phase voltage measurement)



GUID-AE8916E5-D21C-4C90-B38A-C93EDE80FF2E V1 EN

Figure 14: Connection diagram for the B configuration (on load tap changercontrol with phase-to-earth voltage measurement)

3.3 Standard configuration A

3.3.1 ApplicationsThe standard configuration is intended for voltage protection and synchronismcheck in the medium voltage networks. The configuration handles fault conditions



originating from abnormal voltages in the power system. The synchronism andenergizing check can be handled for two galvanically interconnected networks.

The IED with a standard configuration is delivered from the factory with defaultsettings and parameters. The end user flexibility for incoming, outgoing andinternal signal designation within the IED enables this configuration to be furtheradapted to different primary circuit layouts and the related functionality needs bymodifying the internal functionality using PCM600.

3.3.2 Functions

-

5

CONDITION MONITORING AND SUPERVISION

1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ORAND

CONTROL AND INDICATION 1) MEASUREMENT

PROTECTION LOCAL HMI

Object Ctrl 2) Ind 3)

CB

DC

ES1) Check availability of binary inputs/outputs

from technical documentation2) Control and indication function for

primary object3) Status indication function for primary object

1 -

2 3

1 2

STANDARD CONFIGURATION

RL

ClearESCI

O

Configuration ASystemHMITimeAuthorization

RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION

Protocols: IEC 61850-8-1/9-2LE Modbus®

IEC 60870-5-103 DNP3

Interfaces: Ethernet: TX (RJ45), FX (LC) Serial: Serial glass fiber (ST), RS-485, RS-232/485 D-sub 9, IRIG-BRedundant protocols: HSR PRP RSTP

REU615 A

- U, Uo, f- Symmetrical components- Limit value supervision

Analog interface types 1)

Current transformer

Voltage transformer1) Conventional transformer inputs

ALSO AVAILABLE

- Disturbance and fault recorders- Event log and recorded data- High-Speed Output module (optional)- IED self-supervision - Local/Remote push button on LHMI- User management- Web HMI

REMARKS

Optionalfunction

No. ofinstances

Alternative function to be defined when ordering

OR

Io/Uo

Calculatedvalue

3×

2×TCSTCM

SYNC25

3×ARC

50L/50NL

5×Master Trip

Lockout relay94/86

3×3U<27

2×U2>47O-

2×U1<

47U+

3×3U>59

3×Uo>59G

6×f>/f<,df/dt81

5×UFLS/R81LSH

OPTSOPTM

18×MAPMAP

3×

UL1

UL2

UL3

UL1UL2UL3

U12

U12

Uo

Uo

UL1UL2UL3

VOLTAGE PROTECTION AND CONTROL IED

GUID-7FCB61C4-C1FE-4093-878E-5BCA11D7FC45 V1 EN

Figure 15: Functionality overview for standard configuration A



3.3.2.1 Default I/O connections

Connector pins for each input and output are presented in the IED physicalconnections section.

Table 11: Default connections for binary inputs

Binary input DescriptionX110-BI1 Setting group change

X110-BI2 Manual restore group 1

X110-BI3 Manual restore group 2

X110-BI4 -

X110-BI5 Voltage transformer truck in indication

X110-BI6 Voltage transformer truck out indication

X110-BI7 Earth switch closed indication

X110-BI8 Earth switch open indication

X130-BI1 Blown primary fuse indication

X130-BI2 Line voltage transformer MCB open

X130-BI3 Bus voltage transformer MCB open

X130-BI4 Lockout reset

Table 12: Default connections for binary outputs

Binary output DescriptionX100-PO1 -

X100-PO2 In synchronism for close

X100-SO1 General start indication

X100-SO2 General operate indication

X100-PO3 Open circuit breaker/trip coil 1

X100-PO4 Open circuit breaker/trip coil 2

X110-SO1 Load-shedding group 1

X110-SO2 Load-shedding group 2

X110-SO3 Load restore group 1

X110-SO4 Load restore group 2

X110-HSO1 Arc protection instance 1 operate activated





Table 13: Default connections for LEDs

LED Description1 Overvoltage protection operated

2 Undervoltage protection operated

3 Residual voltage operated

4 Sequence voltage protection operated

5 Frequency protection operated

6 Load-shedding operated

7 Disturbance recorder operated

8 Systems synchronized

9 Voltage transformer secondary MCB open

10 Arc-fault detected

11 Primary voltage transformer fuse blown

3.3.2.2 Default disturbance recorder settings

Table 14: Default disturbance recorder analog channels

Channel Description1 Uo

2 U1

3 U2

4 U3

5 U1B

6 -

7 -

8 -

9 -

10 -

11 -

12 -

Table 15: Default disturbance recorder binary channels

Channel ID text Level trigger mode1 FRPFRQ1 - start Positive or Rising

2 FRPFRQ2 - start Positive or Rising





7 LSHDPFRQ1 - start Positive or Rising




Channel ID text Level trigger mode8 LSHDPFRQ2 - start Positive or Rising




12 NSPTOV1 - start Positive or Rising

13 NSPTOV2 - start Positive or Rising

14 PSPTUV1 - start Positive or Rising

15 PSPTUV2 - start Positive or Rising

16 PHPTOV1 - start Positive or Rising



19 PHPTUV1 - start Positive or Rising



22 ROVPTOV1 - start Positive or Rising



25 FRPFRQ1 - operate Level trigger off

FRPFRQ2 - operate

FRPFRQ3 - operate

FRPFRQ4 - operate

FRPFRQ5 - operate

FRPFRQ6 - operate

26 LSHDPFRQ1 - operate Level trigger off

LSHDPFRQ2 - operate

LSHDPFRQ3 - operate

LSHDPFRQ4 - operate

LSHDPFRQ5 - operate

27 PHPTOV1 - operate Level trigger off

PHPTOV2 - operate

PHPTOV3 - operate

28 PHPTUV1 - operate Level trigger off

PHPTUV2 - operate

PHPTUV3 - operate

29 NSPTOV1 - operate Level trigger off

NSPTOV2 - operate

PSPTUV1 - operate

PSPTUV2 - operate




Channel ID text Level trigger mode30 ROVPTOV1 - operate Level trigger off

ROVPTOV2 - operate

ROVPTOV3 - operate

31 LSHDPFRQ1 - operate Level trigger off

LSHDPFRQ2 - operate

LSHDPFRQ3 - operate

LSHDPFRQ4 - operate

LSHDPFRQ5 - operate

32 X130BI2 - line VT MCB open Level trigger off

33 X130BI3 - bus VT MCB open Level trigger off

34 SECRSYN1 - sync inpro Level trigger off

35 SECRSYN1 - sync ok Level trigger off

36 ARCSARC1 - arc flt det Level trigger off



3.3.3 Functional diagramsThe functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements.

The analog channels have fixed connections to the different function blocks insidethe IED’s standard configuration. However, the 12 analog channels available forthe disturbance recorder function are freely selectable as a part of the disturbancerecorder’s parameter settings.

The phase and bus voltages to the IED are fed from voltage transformer. Theresidual voltage to the IED is fed from either residually connected VTs or an opendelta connected VT or internally calculated.

The IED offers six different settings group which can be set based on individualneeds. Each group can be activated or deactivated using the setting group settingsavailable in the IED.

Depending on the communication protocol the required function block needs to beinitiated in the configuration. The Application Configuration tool also includesfixed Boolean signals TRUE and FALSE which can be used according to theapplication needs.

3.3.3.1 Functional diagrams for protection

The functional diagrams describe the IED's protection functionality in detail andaccording to the factory set default connections.



Three overvoltage and undervoltage protection stages PHxPTOV and PHxPTUVoffer protection against abnormal phase voltage conditions. The undervoltageprotection stage is blocked, if fuse failure is detected in voltage transformer. Theinformation is available through the binary input X130:BI1.

PHPTOV1BLOCK OPERATE

START


START


START

OR6B1B2B3B4B5B6

O

PHPTOV1_OPERATE

PHPTOV1_OPERATE

PHPTOV2_OPERATE

PHPTOV2_OPERATE

PHPTOV3_OPERATE

PHPTOV3_OPERATE

PHPTOV1_START

PHPTOV2_START

PHPTOV3_START

PHPTOV_OPERATE

GUID-81B61B9F-7976-4345-A2C9-2D24F425A8EB V1 EN

Figure 16: Overvoltage protection function



PHPTUV1BLOCK OPERATE

START


START


START

OR6B1B2B3B4B5B6

O

X130_BI1_PRIMARY_VT_FUSE_BLOWN



PHPTUV1_OPERATE

PHPTUV1_OPERATE

PHPTUV2_OPERATE

PHPTUV2_OPERATE

PHPTUV3_OPERATE

PHPTUV3_OPERATE

PHPTUV1_START

PHPTUV2_START

PHPTUV3_START

PHPTUV_OPERATE

GUID-DAF89708-AABD-4D0E-B07B-1097F3D78495 V1 EN

Figure 17: Undervoltage protection function

Four unbalance voltage protection functions are available, two stages of positivesequence undervoltage PSPTUV and two stages of negative sequence overvoltageNSPTOV protection. The unbalance protection stages are blocked, if fuse failure isdetected in voltage transformer.



NSPTOV1BLOCK OPERATE

START

PSPTUV1BLOCK OPERATE

START

NSPTOV2BLOCK OPERATE

START

PSPTUV2BLOCK OPERATE

START

OR6B1B2B3B4B5B6

O





NSPTOV1_OPERATE

NSPTOV1_OPERATE

NSPTOV2_OPERATE

NSPTOV2_OPERATE

PSPTUV1_OPERATE

PSPTUV1_OPERATE

PSPTUV2_OPERATE

PSPTUV2_OPERATE

NSPTOV1_START

NSPTOV2_START

PSPTUV1_START

PSPTUV2_START

SEQUENCE_VOLTAGE_OPERATE

GUID-1D04E3BD-C662-4657-9AF2-F61A354A7369 V1 EN

Figure 18: Sequence voltage protection function

The residual overvoltage protection ROVPTOV provides earth-fault protection bydetecting abnormal level of residual voltage. The residual overvoltage protectionstages are blocked, if fuse failure is detected in voltage transformer.

ROVPTOV1BLOCK OPERATE

START


START


START

OR6B1B2B3B4B5B6

O




ROVPTOV1_OPERATE

ROVPTOV1_OPERATE

ROVPTOV2_OPERATE

ROVPTOV2_OPERATE

ROVPTOV3_OPERATE

ROVPTOV3_OPERATE

ROVPTOV1_START

ROVPTOV2_START

ROVPTOV3_START

ROVPTOV_OPERATE

GUID-7FD1A83F-E64A-4274-AF52-22AAD26875C4 V1 EN

Figure 19: Residual voltage protection function



The selectable underfrequency or overfrequency protection FRPFRQ preventsdamage to network components under unwanted frequency conditions. Thefunction also contains a selectable rate of change of the frequency (gradient)protection to detect an increase or decrease in the fast power system frequency atan early stage. This can be used as an early indication of a disturbance in the system.

OR6B1B2B3B4B5B6

OFRPFRQ1_OPERATEFRPFRQ2_OPERATEFRPFRQ3_OPERATEFRPFRQ4_OPERATEFRPFRQ5_OPERATEFRPFRQ6_OPERATE

FREQUENCY_OPERATE

FRPFRQ2BLOCK OPERATE

OPR_OFRQOPR_UFRQ

OPR_FRGSTART

ST_OFRQST_UFRQ

ST_FRG


OPR_OFRQOPR_UFRQ

OPR_FRGSTART

ST_OFRQST_UFRQ

ST_FRG


OPR_OFRQOPR_UFRQ

OPR_FRGSTART

ST_OFRQST_UFRQ

ST_FRG

FRPFRQ2_OPERATE

FRPFRQ4_OPERATE

FRPFRQ6_OPERATE

FRPFRQ2_START

FRPFRQ4_START

FRPFRQ6_START


OPR_OFRQOPR_UFRQ

OPR_FRGSTART

ST_OFRQST_UFRQ

ST_FRG


OPR_OFRQOPR_UFRQ

OPR_FRGSTART

ST_OFRQST_UFRQ

ST_FRG


OPR_OFRQOPR_UFRQ

OPR_FRGSTART

ST_OFRQST_UFRQ

ST_FRG

FRPFRQ1_OPERATE

FRPFRQ3_OPERATE

FRPFRQ5_OPERATE

FRPFRQ1_START

FRPFRQ3_START

FRPFRQ5_START

GUID-C35E450A-7391-454F-8AE8-31A97FC8DE7E V1 EN

Figure 20: Frequency protection function

Five load-shedding and restoration stages are offered in the standard configuration.The load-shedding and restoration function LSHDPFRQ is capable of sheddingload based on underfrequency and rate of change of frequency. The load that isshed during the frequency disturbance can be restored once the frequency isstabilized to the normal level. The manual restore commands can be given throughthe binary inputs. In the configuration, two restore stages are implemented withmanual restore command. Depending on application needs, it is possible to takeother stages into use.



LSHDPFRQ5BLOCKBLK_RESTMAN_RESTORE

OPERATEOPR_FRQOPR_FRG

STARTST_FRQST_FRG

RESTOREST_REST

LSHDPFRQ5_OPERATE

LSHDPFRQ5_RESTORE

LSHDPFRQ5_START



STARTST_FRQST_FRG

RESTOREST_REST

LSHDPFRQ3_OPERATE

LSHDPFRQ3_RESTORE

LSHDPFRQ3_START



STARTST_FRQST_FRG

RESTOREST_REST

LSHDPFRQ1_OPERATE

LSHDPFRQ1_RESTORE

X110_BI2_MANUAL_RESTORE_GR1LSHDPFRQ1_START



STARTST_FRQST_FRG

RESTOREST_REST

LSHDPFRQ2_RESTORE

LSHDPFRQ2_OPERATE

X110_BI3_MANUAL_RESTORE_GR2LSHDPFRQ2_START



STARTST_FRQST_FRG

RESTOREST_REST

LSHDPFRQ4_OPERATE

LSHDPFRQ4_RESTORE

LSHDPFRQ4_START

OR6B1B2B3B4B5B6

OLSHDPFRQ1_OPERATELSHDPFRQ2_OPERATELSHDPFRQ3_OPERATELSHDPFRQ4_OPERATELSHDPFRQ5_OPERATE

LOAD_SHEDDING_OPERATE

GUID-1FEA38DF-1E65-4888-89E9-187CCCF71A7C V1 EN

Figure 21: Load-shedding and restoration function

Three arc protection stages ARCSARC1...3 are included as optional functions. Thearc protection offers individual function blocks for three arc sensors that can beconnected to the IED. The arc protection in this standard configuration detects anarc flash and supplies the information for the operating arc protection unit, which de-energizes the faulty area by opening the circuit breaker. For example, fast GOOSEcommunication is used to route the detected information to the circuit breaker.

If the IED is ordered with high speed binary outputs, individual arc detection fromARCSARC1...3 are connected to the dedicated high speed outputs X110:HSO1,X110:HSO2 and X110:HSO3.



OR6B1B2B3B4B5B6

O

ARCSARC1BLOCK ARC_FLT_DET



ARCSARC1_ARC_FLT_DET






ARC_FAULT_DETECTED

GUID-D27CE92B-3A0B-4155-9DA8-E05BB9B7D4EB V1 EN

Figure 22: Arc protection with dedicated HSO

General start and operate from all the functions are connected to the pulse timerTPGAPC1 for setting the minimum pulse length for the outputs. The output fromTPGAPC1 is connected to the binary outputs.



OR6B1B2B3B4B5B6

O

TPGAPC1IN1IN2

OUT1OUT2

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

GENERAL_START_PULSEGENERAL_OPERATE_PULSE

FRPFRQ1_OPERATEFRPFRQ2_OPERATEFRPFRQ3_OPERATEFRPFRQ4_OPERATEFRPFRQ5_OPERATEFRPFRQ6_OPERATE

PHPTOV1_OPERATEPHPTOV2_OPERATEPHPTOV3_OPERATEPHPTUV1_OPERATEPHPTUV2_OPERATEPHPTUV3_OPERATE

NSPTOV1_OPERATENSPTOV2_OPERATEPSPTUV1_OPERATEPSPTUV2_OPERATE

ROVPTOV1_OPERATEROVPTOV2_OPERATEROVPTOV3_OPERATE

FRPFRQ1_STARTFRPFRQ2_STARTFRPFRQ3_STARTFRPFRQ4_STARTFRPFRQ5_STARTFRPFRQ6_START

PHPTOV1_STARTPHPTOV2_STARTPHPTOV3_STARTPHPTUV1_STARTPHPTUV2_STARTPHPTUV3_START

NSPTOV1_STARTNSPTOV2_STARTPSPTUV1_STARTPSPTUV2_START

ROVPTOV1_STARTROVPTOV2_STARTROVPTOV3_START

GUID-1D22AD17-55D6-4FB1-9EC8-249B1F2F8EE3 V1 EN

Figure 23: General start and operate signals

The operate signals from the protection functions are connected to the two triplogics TRPPTRC1 and TRPPTRC2. The output of these trip logic functions isavailable at binary output X100:PO3 and X100:PO4. The trip logic functions areprovided with a lockout and latching function, event generation and the trip signalduration setting. If the lockout operation mode is selected, binary input X120:BI4has been assigned to the RST_LKOUT input of both the trip logic to enable externalreset with a push button.

Three other trip logics TRPPTRC3...4 are also available if the IED is ordered withhigh speed binary outputs options.



TRPPTRC1BLOCKOPERATERST_LKOUT

TRIPCL_LKOUT

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

TRPPTRC1_TRIPFRPFRQ1_OPERATEFRPFRQ2_OPERATEFRPFRQ3_OPERATEFRPFRQ4_OPERATEFRPFRQ5_OPERATEFRPFRQ6_OPERATE




X130_BI4_LOCKOUT_RESETGUID-A2FFA630-DE41-472B-8275-93C1D1C0ED00 V1 EN

Figure 24: Trip logic TRPPTRC1

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O


TRIPCL_LKOUT

TRPPTRC2_TRIPFRPFRQ1_OPERATEFRPFRQ2_OPERATEFRPFRQ3_OPERATEFRPFRQ4_OPERATEFRPFRQ5_OPERATEFRPFRQ6_OPERATE




X130_BI4_LOCKOUT_RESETGUID-5691FC6D-136E-4BE0-9000-69E1EDB8CCEC V1 EN




3.3.3.2 Functional diagrams for disturbance recorder

The START and the OPERATE outputs from the protection stages are routed totrigger the disturbance recorder or, alternatively, only to be recorded by thedisturbance recorder depending on the parameter settings. Additionally, theselected signals from different functions and the few binary inputs are alsoconnected to the disturbance recorder.

RDRE1C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24C25C26C27C28C29C30C31C32C33C34C35C36C37C38C39C40C41C42C43C44C45C46C47C48C49C50C51C52C53C54C55C56C57C58C59C60C61C62C63C64

TRIGGERED

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

LSHDPFRQ1_OPERATE

LSHDPFRQ1_RESTORELSHDPFRQ2_RESTORE

LSHDPFRQ2_OPERATE

ARCSARC1_ARC_FLT_DETARCSARC2_ARC_FLT_DETARCSARC3_ARC_FLT_DET

SECRSYN1_SYNC_OK

X130_BI2_LINE_VT_MCB_OPENX130_BI3_BUS_VT_MCB_OPEN


PHPTOV1_OPERATEPHPTOV2_OPERATEPHPTOV3_OPERATE

PHPTUV1_OPERATEPHPTUV2_OPERATEPHPTUV3_OPERATE







LSHDPFRQ3_OPERATELSHDPFRQ4_OPERATELSHDPFRQ5_OPERATE

LSHDPFRQ3_RESTORELSHDPFRQ4_RESTORELSHDPFRQ5_RESTORE

SECRSYN1_SYNC_INPRO

LSHDPFRQ1_STARTLSHDPFRQ2_STARTLSHDPFRQ3_STARTLSHDPFRQ4_STARTLSHDPFRQ5_START

DISTURB_RECORD_TRIGGERED

GUID-311D3D6F-EF61-41FF-8098-E9506DEFA85D V1 EN

Figure 26: Disturbance recorder

3.3.3.3 Functional diagrams for control and interlocking

The main purpose of the synchronism and energizing check SECRSYN1 is toprovide control over the closing of the circuit breakers in power networks toprevent the closing if the conditions for synchronism are not detected. The



energizing function allows closing, for example, when one side of the circuitbreaker is dead.

SECRSYN1 measures the bus and line voltages and compares them to setconditions. When all the measured quantities are within set limits, the outputSYNC_OK is activated. The SYNC_OK output signal of SECRSYN is connected tothe binary output X100:PO2. The function is blocked, in case line side or bus sideMCB is open.

SECRSYN1BLOCKCL_COMMANDBYPASS

SYNC_INPROSYNC_OK

CL_FAIL_ALCMD_FAIL_AL

LLDBLLLBDLLBDLDB

SECRSYN1_SYNC_OKBLOCK_SECRSYN1 SECRSYN1_SYNC_INPRO

OR6B1B2B3B4B5B6

O BLOCK_SECRSYN1X130_BI1_PRIMARY_VT_FUSE_BLOWNX130_BI2_LINE_VT_MCB_OPENX130_BI3_BUS_VT_MCB_OPEN

GUID-9CCE0F59-600A-412B-AA0A-4E4D57CB4CCC V1 EN

Figure 27: Synchrocheck function

Two types of disconnector and earthing switch function blocks are available.DCSXSWI1...3 and ESSXSWI1...2 are status only type, and DCXSWI1...2 andESXSWI1 are controllable type. By default, the status only blocks are connected instandard configuration. The disconnector (CB truck) is connected to DCSXSWI1and line side earthing switch status information is connected to ESSXSI1.

ESSXSWI1POSOPENPOSCLOSE

OPENPOSCLOSEPOS

OKPOS

X110_BI8_ES1_OPENEDX110_BI7_ES1_CLOSED

DCSXSWI1POSOPENPOSCLOSE

OPENPOSCLOSEPOS

OKPOS

X110_BI6_VT_DC1_OPENEDX110_BI5_VT_DC1_CLOSED

GUID-F7D07794-69E5-45BE-983E-672D9417213C V1 EN

Figure 28: Disconnector and earth-switch control logic

3.3.3.4 Functional diagrams for measurement functions

The three-phase bus side phase voltage and single-phase line side phase voltageinputs to the IED are measured by the voltage measurement function VMMXU1and VMMXU2. The voltage input is connected to the X130 card in the back panel.The sequence voltage measurement VSMSQI1 measures the sequence voltage.

The measurements can be seen in the LHMI and they are available under themeasurement option in the menu selection. Based on the settings, function blocks



can generate low alarm or warning and high alarm or warning signals for themeasured current values.

The frequency measurement FMMXU1 of the power system is available. The loadprofile function LDPMSTA1 is included in the measurements sheet. LDPMSTA1offers the ability to observe the loading history of the corresponding feeder.

VMMXU1BLOCK HIGH_ALARM

HIGH_WARNLOW_WARN

LOW_ALARM

GUID-6B7DC952-6857-4183-A474-D01CDC1BFB9A V1 EN

Figure 29: Voltage measurement: Three-phase voltage measurement

VSMSQI1

GUID-3569EF4C-561C-42B3-B259-7C53DC402B67 V1 EN

Figure 30: Voltage measurement: Sequence voltage measurement

RESVMMXU1BLOCK HIGH_ALARM

HIGH_WARN

GUID-357F2289-1823-4D2D-A6F2-A9CD25F50CA2 V1 EN

Figure 31: Voltage measurement: Residual voltage measurement


HIGH_WARNLOW_WARN

LOW_ALARM

GUID-2954D877-B9C2-4977-8131-AB1BFDFF875A V1 EN


FMMXU1

GUID-3A350A86-323A-4AA7-86DC-BC0263AA2B11 V1 EN

Figure 33: Other measurement: Frequency measurement

FLTMSTA1BLOCKCB_CLRD

GUID-99FC75A8-659E-420C-958D-0829CF9A4152 V1 EN

Figure 34: Other measurement: Data monitoring



LDPMSTA1RSTMEM MEM_WARN

MEM_ALARM

GUID-27DA4FD3-9AB2-4F0A-B7ED-FD43B8437170 V1 EN

Figure 35: Other measurement: Load profile record

3.3.3.5 Functional diagrams for I/O and alarm LEDs

ORB1B2

O

ORB1B2

O

ORB1B2

O

ORB1B2

O

ORB1B2

O

ORB1B2

O

ORB1B2

O

X110_BI1_SG_CHANGE

X110_BI6_VT_DC1_OPENED

X110_BI5_VT_DC1_CLOSED

X110_BI8_ES1_OPENED

X110_BI7_ES1_CLOSED

X110_BI2_MANUAL_RESTORE_GR1

X110_BI3_MANUAL_RESTORE_GR2X110 (BIO).X110-Input 3

X110 (BIO-H).X110-Input 5

X110 (BIO).X110-Input 1












GUID-7673B764-A100-40BB-97B1-F351022BAA59 V1 EN

Figure 36: Default binary inputs - X110




X130_BI2_LINE_VT_MCB_OPEN

X130_BI3_BUS_VT_MCB_OPEN

X130_BI4_LOCKOUT_RESET

X130 (AIM).X130-Input 1



X130 (AIM).X130-Input 4GUID-2A98DEBA-77CD-4C56-8752-E71F5C81C665 V1 EN


LSHDPFRQ1_OPERATE

LSHDPFRQ1_RESTORE

LSHDPFRQ2_RESTORE

LSHDPFRQ2_OPERATE




X110 (BIO).X110-SO1

X110 (BIO).X110-SO2

X110 (BIO).X110-SO3

X110 (BIO).X110-SO4

X110 (BIO-H).X110-HSO1



GUID-06520671-4C0E-4A42-B368-E1298EAAF9CD V1 EN

Figure 38: Default binary outputs - X110

SECRSYN1_SYNC_OK

GENERAL_START_PULSE

GENERAL_OPERATE_PULSE

TRPPTRC1_TRIP

TRPPTRC2_TRIP

FALSE

X100 (PSM).X100-PO2

X100 (PSM).X100-SO1

X100 (PSM).X100-SO2

X100 (PSM).X100-PO3

X100 (PSM).X100-PO4

X100 (PSM).X100-PO1

GUID-42D5E662-A59C-4505-9441-6E80E1F134FD V1 EN




LED1OKALARMRESET

LED2OKALARMRESET

LED3OKALARMRESET

LED4OKALARMRESET

LED5OKALARMRESET

PHPTOV_OPERATE

PHPTUV_OPERATE

ROVPTOV_OPERATE


FREQUENCY_OPERATE

GUID-FB5528CE-16E7-4EBC-B89F-93EB1F3140F7 V1 EN

LED6OKALARMRESET

LED7OKALARMRESET

LED8OKALARMRESET

LED9OKALARMRESET

LED10OKALARMRESET

LED11OKALARMRESET

ORB1B2

O

SECRSYN1_SYNC_OK




ARC_FAULT_DETECTED


GUID-8EF7DAF6-D189-4C6E-8BD7-87D40D634938 V1 EN

Figure 40: Default LED connections



3.3.3.6 Other functions

The configuration includes few instances of multi-purpose protection functionMAPGAPC, runtime counter MDSOPT, trip circuit supervision, different types oftimers and control functions. These functions are not included in applicationconfiguration but they can be added based on the system requirements.

3.4 Standard configuration B

3.4.1 ApplicationsThe standard configuration is intended for automatic voltage regulator of powertransformers equipped with a on-load tap changer. It also features three-stage three-phase non-directional overcurrent protection, three-phase under- and overvoltageprotection. The configuration also incorporates a thermal overload protectionfunction, which supervises the thermal stress of the transformer windings toprevent premature aging of the winding’s insulation.

The RTD/mA input module is optional in the configuration. While using the RTD/mA input module, it is possible to have the tap changer position indication as anmA signal. Ambient temperature of the power transformer can be used in thermalprotection and the multi-purpose protection functions are also available. The multi-purpose protection function enables protection based on analog values from theIEDs RTD/mA input module or from other IEDs using analog horizontal GOOSEmessaging.

The IED with a standard configuration is delivered from the factory with defaultsettings and parameters. The end user flexibility for incoming, outgoing andinternal signal designation within the IED enables this configuration to be furtheradapted to different primary circuit layouts and the related functionality needs bymodifying the internal functionality using PCM600.



3.4.2 Functions


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ORAND




CB

DC




1 -

2 3

1 2


RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


REU615

- I, U, P, Q, E, pf, f- Symmetrical components- Limit value supervision- RTD/mA measurement (optional)

4

3


1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 01 0 1 0 0 0 1 1 0 0 1 1 0 0 1 0 1 0 0 0 1 1 0 0 1 1 0 01 0 1 1 0 0 1 0 1 1 1 0 0 1 01 1 0 0 1 1 1 0 1 1 0 1 01 0 1 1 0 1 1 0 1 1 0 1 0 0

ORAND




CB

DC




1 -

2 3

1 2


RL

ClearESCI

O


RL

ClearESCI

O

U12 0. 0 kVP 0.00 kWQ 0.00 kVAr

IL2 0 A

A

COMMUNICATION


IEC 60870-5-103 DNP3


REU615 B

OR

REMARKS

Optionalfunction

No. ofinstances

Alternative function to be defined when ordering

Io/Uo

Calculatedvalue

3×

Sum of phase currents

I∑

Analog interface types 1)

Current transformer

Voltage transformer1) Conventional transformer inputs

ALSO AVAILABLE

- Disturbance and fault recorders- Event log and recorded data- IED self-supervision - Local/Remote push button on LHMI- User management- Web HMI

VOLTAGE PROTECTION AND CONTROL IEDAutomatic voltage regulator

2×TCSTCM

2×Master Trip

Lockout relay94/86

3×3U<27

3×3U>59

FUSEF60

MCS 3IMCS 3I

TPOSM84M

COLTC90V

3I>>>50P/51P

3I>51P-1

3I>>51P-2

3Ith>T49T

18×MAPMAP

OPTSOPTM

UL1UL2UL3

3I

3I

I∑

6xRTD2xmA

GUID-3BF4B59D-0929-46EC-87B2-3AD6894C3FAC V1 EN

Figure 41: Functionality overview for standard configuration B

3.4.2.1 Default I/O connections

Connector pins for each input and output are presented in the IED physicalconnections section.



Table 16: Default connections for binary inputs

Binary input DescriptionX110-BI1 Tap changer operates

X110-BI2 Voltage transformer secondary MCB open

X110-BI3 Lower local request

X110-BI4 Raise local request

X110-BI5 -

X110-BI6 -

X110-BI7 Circuit breaker closed indication

X110-BI8 Circuit breaker open indication

X130-BI1 BCD sign bit (tap changer position)

X130-BI2 BCD bit 0 (LSB)

X130-BI3 BCD bit 1

X130-BI4 BCD bit 2

X130-BI5 BCD bit 3

X130-BI6 BCD bit 4 (MSB)

Table 17: Default connections for mA/RTD inputs

RTD/mA input Default usageX130-AI1 Tap changer position

X130-AI2 -

X130-AI3 Transformer ambient temperature

X130-AI4 -

X130-AI5 -

X130-AI6 -

X130-AI7 -

X130-AI8 -

Table 18: Default connections for binary outputs

Binary output DescriptionX100-PO1 Lower own command

X100-PO2 Raise own command

X100-SO1 General start indication

X100-SO2 General operate indication

X100-PO3 Master trip

X100-PO4 Close circuit beaker

X110-SO1 Tap changer control alarm

X110-SO2 Overcurrent operate alarm

X110-SO3 Voltage protection operate alarm

X110-SO4 Overload protection operate alarm



Table 19: Default connections for LEDs

LED Description1 Overcurrent protection operated

2 Overvoltage protection operated

3 Undervoltage protection operated

4 Thermal overload protection operated

5 Raise own

6 Lower own

7 Disturbance recorder operated

8 Tap changer control alarm

9 Supervision

10 Tap changer operates

11 -

3.4.2.2 Default disturbance recorder settings

Table 20: Default disturbance recorder analog channels

Channel Description1 IL1

2 IL2

3 IL3

4 Io

5 U1

6 U2

7 U3

8 -

9 -

10 -

11 -

12 -

Table 21: Default disturbance recorder binary channels

Channel ID text Level trigger mode1 PHIPTOC1 - start Positive or Rising

2 PHHPTOC1 - start Positive or Rising

3 PHLPTOV1 - start Positive or Rising








Channel ID text Level trigger mode8 PHPTUV2 - start Positive or Rising


10 T2PTTR1 - start Positive or Rising

11 PHIPTOC1 - operate Level trigger off

PHHPTOC2 - operate

PHLPTOC3 - operate

12 PHPTOV1 - operate Level trigger off

PHPTOV2 - operate

PHPTOV3 - operate

13 PHPTUV1 - operate Level trigger off

PHPTUV2 - operate

PHPTUV3 - operate

14 T2PTTR1 - operate Level trigger off

15 T2PTTR1 - alarm Level trigger off

16 T2PTTR1 - blk close Level trigger off

17 SEQRFUF - fusef 3ph Level trigger off

18 SEQRFUF - fusef u Level trigger off

19 CCRDIF1 - fail Level trigger off

20 X110BI2 - MCB opend Level trigger off

21 X110BI7 - CB closed Level trigger off

22 X110BI8 - CB opened Level trigger off

23 OLATCC1 - raise own Level trigger off

24 OLATCC1 - lower own Level trigger off

25 X110BI1 - Tap changer operating Level trigger off

3.4.3 Functional diagramsThe functional diagrams describe the default input, output, alarm LED and function-to-function connections. The default connections can be viewed and changed withPCM600 according to the application requirements.

The analog channels have fixed connections to the different function blocks insidethe IED’s standard configuration. However, the 12 analog channels available forthe disturbance recorder function are freely selectable as a part of the disturbancerecorder’s parameter settings.

The phase currents to the IED are fed from a current transformer. The residualcurrent to the IED is fed from either residually connected CTs, an external corebalance CT, neutral CT or internally calculated.



The phase voltages to the IED are fed from a voltage transformer. The residualvoltage to the IED is fed from either residually connected VTs, an open deltaconnected VT or internally calculated.

The IED offers six different settings group which can be set based on individualneeds. Each group can be activated or deactivated using the setting group settingsavailable in the IED.

Depending on the communication protocol the required function block needs to beinitiated in the configuration. The Application Configuration tool also includesfixed Boolean signals TRUE and FALSE which can be used according to theapplication needs.

3.4.3.1 Functional diagrams for protection

The functional diagrams describe the IED's protection functionality in detail andaccording to the factory set default connections.

Three non-directional overcurrent stages are offered for overcurrent and short-circuit protection.

PHIPTOC1BLOCKENA_MULT

OPERATESTART

PHLPTOC1BLOCKENA_MULT

OPERATESTART

PHHPTOC1BLOCKENA_MULT

OPERATESTART

OR6B1B2B3B4B5B6

O

PHIPTOC1_OPERATE

PHIPTOC1_OPERATE

PHHPTOC1_OPERATE

PHHPTOC1_OPERATE

PHLPTOC1_OPERATE

PHLPTOC1_OPERATE

PHIPTOC1_START

PHHPTOC1_START

PHLPTOC1_START

PHxPTOC_OPERATE

GUID-C35524DE-E3CE-4F48-9B08-A3F72E5DEBFD V1 EN

Figure 42: Overcurrent protection functions

The thermal overload protection T2PTTR1 detects overloads under varying loadconditions. If optional RTD/mA input module is included in the IED, the ambienttemperature of the power transformer is connected from the RTD channel to thethermal overload function. The BLK_CLOSE output of the function blocks theclosing operation of circuit breaker.



T2PTTR1BLOCKTEMP_AMB

OPERATESTARTALARM

BLK_CLOSE T2PTTR1_BLK_CLOSE

T2PTTR1_OPERATET2PTTR1_STARTX130_AI3_AMBIENT_TEMPT2PTTR1_ALARM

GUID-C423CFB7-AF78-45FB-A426-FDD3CF0C4952 V1 EN

Figure 43: Thermal overcurrent protection function

Three overvoltage and undervoltage protection stages PHxPTOV and PHxPTUVoffer protection against abnormal phase voltage conditions.


START


START


START

OR6B1B2B3B4B5B6

O

PHPTOV1_OPERATE

PHPTOV1_OPERATE

PHPTOV2_OPERATE

PHPTOV2_OPERATE

PHPTOV3_OPERATE

PHPTOV3_OPERATE

PHPTOV1_START

PHPTOV2_START

PHPTOV3_START

PHPTOV_OPERATE

GUID-2A15C361-55AB-4D89-8EBC-B8D48421EF35 V1 EN

Figure 44: Overvoltage protection function




START


START


START

OR6B1B2B3B4B5B6

O

PHPTUV1_OPERATE

PHPTUV1_OPERATE

PHPTUV2_OPERATE

PHPTUV2_OPERATE

PHPTUV3_OPERATE

PHPTUV3_OPERATE

PHPTUV1_START

PHPTUV2_START

PHPTUV3_START

PHPTUV_OPERATE

GUID-BA9435A5-5DEE-4889-8727-A9F1796519CA V1 EN

Figure 45: Undervoltage protection function

General start and operate from all the functions are connected to pulse timerTPGAPC1 for setting the minimum pulse length for the outputs. The output fromTPGAPC1 is connected to binary outputs

OR6B1B2B3B4B5B6

O

TPGAPC1IN1IN2

OUT1OUT2

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

GENERAL_START_PULSEGENERAL_OPERATE_PULSE


PHIPTOC1_OPERATEPHHPTOC1_OPERATEPHLPTOC1_OPERATE

T2PTTR1_OPERATE


PHIPTOC1_STARTPHHPTOC1_STARTPHLPTOC1_START

T2PTTR1_START

GUID-4335F3D7-0DD7-497C-BD4D-249E3186446A V1 EN

Figure 46: General start and operate signals



The operate signals from the protection functions are connected to the trip logicTRPPTRC1. The output of these trip logic functions is available at binary outputX100:PO3. The trip logic functions are provided with a lockout and latchingfunction, event generation and the trip signal duration setting. If the lockoutoperation mode is selected, binary input has been assigned to RST_LKOUT input ofthe trip logic to enable external reset with a push button.


TRIPCL_LKOUT

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

OTRPPTRC1_TRIP


PHIPTOC1_OPERATEPHHPTOC1_OPERATEPHLPTOC1_OPERATE

T2PTTR1_OPERATE

GUID-E555B184-7AE5-4B02-B3EF-B943033E6E91 V1 EN


3.4.3.2 Functional diagrams for disturbance recorder

The START and OPERATE outputs from the protection stages are routed to triggerthe disturbance recorder or, alternatively, only to be recorded by the disturbancerecorder depending on the parameter settings. Additionally, the selected signalsfrom different functions and the few binary inputs are also connected to thedisturbance recorder.



RDRE1C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24C25C26C27C28C29C30C31C32C33C34C35C36C37C38C39C40C41C42C43C44C45C46C47C48C49C50C51C52C53C54C55C56C57C58C59C60C61C62C63C64

TRIGGERED

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

OR6B1B2B3B4B5B6

O

LSHDPFRQ1_OPERATE

LSHDPFRQ1_RESTORELSHDPFRQ2_RESTORE

LSHDPFRQ2_OPERATE

ARCSARC1_ARC_FLT_DETARCSARC2_ARC_FLT_DETARCSARC3_ARC_FLT_DET

SECRSYN1_SYNC_OK



PHPTOV1_OPERATEPHPTOV2_OPERATEPHPTOV3_OPERATE

PHPTUV1_OPERATEPHPTUV2_OPERATEPHPTUV3_OPERATE







LSHDPFRQ3_OPERATELSHDPFRQ4_OPERATELSHDPFRQ5_OPERATE

LSHDPFRQ3_RESTORELSHDPFRQ4_RESTORELSHDPFRQ5_RESTORE

SECRSYN1_SYNC_INPRO

LSHDPFRQ1_STARTLSHDPFRQ2_STARTLSHDPFRQ3_STARTLSHDPFRQ4_STARTLSHDPFRQ5_START


GUID-2E6BBCAA-309F-41ED-A8CA-8BFC8D302477 V1 EN

Figure 48: Disturbance recorder

3.4.3.3 Functional diagrams for condition monitoring

Failures in current measuring circuits are detected by CCRDIF1. When a failure isdetected, it can be used to block current protection functions that are measuringcalculated sequence component currents or residual current to avoid unnecessaryoperation.

CCRDIF1BLOCK FAIL

ALARMCCRDIF1_FAILCCRDIF1_ALARM

GUID-FA1A0E63-C326-4AED-AD89-0C39AEE3FCAA V1 EN

Figure 49: Current circuit supervision function



The fuse failure supervision SEQRFUF1 detects failures in the voltagemeasurement circuits at bus side. Failures, such as an open MCB, raise an alarm.

SEQRFUF1BLOCKCB_CLOSEDDISCON_OPENMINCB_OPEN

FUSEF_3PHFUSEF_UX110_BI7_CB_CLOSED

SEQRFUF1_FUSEF_3PHSEQRFUF1_FUSEF_U

X110_BI2_MCB_OPENED

GUID-CD95BB74-40C0-47D9-80C7-E8DE067A1F1D V1 EN

Figure 50: Fuse failure supervision function

Two separate trip circuit supervision functions are included, TCSSCBR1 for poweroutput X100:PO3 and TCSSCBR2 for power output X100:PO4. The functions areblocked by the Master Trip (TRPPTRC1 and TRPPTRC2) and the circuit breakeropen signal.

It is assumed that there is no external resistor in the circuit breakertripping coil circuit connected in parallel with the circuit breakernormally open auxiliary contact.

Set the parameters for TCSSCBR1 properly.

ORB1B2

OTCSSCBR1_ALARMTCSSCBR2_ALARM

TCSSCBR_ALARM

TCSSCBR2BLOCK ALARMX110_BI7_CB_CLOSED TCSSCBR2_ALARM

TCSSCBR1BLOCK ALARM

ORB1B2

OTRPPTRC1_TRIP

X110_BI8_CB_OPENED TCSSCBR1_ALARM

GUID-619F7332-BA70-477F-A726-B53732B1668C V1 EN

Figure 51: Trip circuit supervision function

3.4.3.4 Functional diagrams for control and interlocking

The on-load tap changer control functionality is provided with the OLATCC1function. Both manual and automatic controlling of the on load tap changer is donevia OLATCC1. The external push button controlling of the local tap changer canbe wired by binary inputs X110: BI3 and X110:BI4 for lowering or raising request.These inputs are connected to the OLATCC1 function via SPCGGIO1. By default,the raise or lower local request can also be send via SPCGGIO1 by usingprogrammable buttons in the single line diagram.

The operation mode (AUTO and PARALLEL inputs) of the OLATCC1 can also becontrolled via SPCGGIO1 by using programmable buttons in the single line



diagram. The operation mode can also be controlled by binary inputs. Binary inputsX110:BI5 and X110:BI6 are reserved for this purpose. If the operation mode ofOLATCC1 is preferred to be controlled externally by binary inputs, the applicationconfiguration must be changed accordingly. If external control is required, it isrecommended to connect binary inputs X110:BI5 and X110:BI6 directly to thePARALLEL and AUTO inputs of OLATCC1 as the SPCGGIO1 inputs aretriggered by the rising edge.

OLATCC1 is blocked in automatic mode on detection of fuse failure or currentcircuit failure as the default setting for LTC_BLOCK is active.

OLATCC1TR1_TAP_POSTR2_TAP_POSTR3_TAP_POSRAISE_LOCALLOWER_LOCALTAPCHG_FLLWPARALLELAUTOCON_STATUSLTC_BLOCKTCORSVTR1_I_AMPLTR1_I_ANGLTR2_I_AMPLTR2_I_ANGLTR3_I_AMPLTR3_I_ANGL

RAISE_OWNLOWER_OWN

FLLW1_CTLFLLW2_CTLFLLW3_CTL

BLKD_I_LODBLKD_U_UNRNBK_U_OVBLKD_I_CIR

BLKD_LTCBLKALARM

PAR_FAILPARALLEL

AUTOTIMER_ON

SPCGGIO1BLOCKIN1IN2IN3IN4IN5IN6IN7IN8IN9IN10IN11IN12IN13IN14IN15IN16

O1O2O3O4O5O6O7O8O9

O10O11O12O13O14O15O16

X110_BI1_TAP_CHANGER_OPERATING

OLATCC1_ALARM

OLATCC1_LOWER_OWNOLATCC1_RAISE_OWN

X110_BI7_CB_CLOSEDBLOCK_OLATCC1

X110_BI4_RAISE_TAP_CHANGER_POSITIONX110_BI3_LOWER_TAP_CHANGER_POSITION

OR6B1B2B3B4B5B6

O BLOCK_OLATCC1SEQRFUF1_FUSEF_3PHSEQRFUF1_FUSEF_U

CCRDIF1_FAIL

GUID-C89A648F-6C73-4DB2-9638-8E4B6B6FA0C2 V1 EN

Figure 52: Online tap changer

The circuit breaker closing is enabled when the ENA_CLOSE input is activated.The input can be activated by the configuration logic depending upon application,which can be a combination of the disconnector or breaker truck and earth-switchposition status, status of the trip logics, gas pressure alarm, circuit-breaker springcharging and synchronizing ok status.

However, in the present configuration only non-active trip logic signals, activatesthe close enable signal to the circuit breaker control function block. The openoperation for circuit breaker is always enabled.

The ITL_BYPASS input can be used, for example, to always enable the closing ofthe circuit breaker when the circuit breaker truck is in the test position, despite ofthe interlocking conditions being active when the circuit breaker truck is closed inservice position.

Connect the additional signals required by the application forclosing and opening of the circuit breaker.



CBXCBR1POSOPENPOSCLOSEENA_OPENENA_CLOSEBLK_OPENBLK_CLOSEAU_OPENAU_CLOSEITL_BYPASS

SELECTEDEXE_OPEXE_CL

OPENPOSCLOSEPOS

OKPOSOPEN_ENAD

CLOSE_ENAD

TRUECBXCBR1_ENA_CLOSE

CBXCBR1_EXE_OPCBXCBR1_EXE_CL

X110_BI8_CB_OPENEDX110_BI7_CB_CLOSED

CBXCBR1_BLK_CLOSECBXBCR1_AU_OPEN

CBXCBR1_AU_CLOSE

FALSE

GUID-FFE638D2-11CE-441B-B716-3E41698A3548 V1 EN

Figure 53: Circuit breaker 1 control logic

ORB1B2

O CB_CLOSE_COMMANDCBXCBR1_EXE_CL

GUID-36160952-57EA-41BF-91F3-9466E795E40D V1 EN

Figure 54: Signals for closing coil of circuit breaker 1

ORB1B2

O CB_OPEN_COMMANDTRPPTRC1_TRIPCBXCBR1_EXE_OP

GUID-BC5E4E5F-E5B4-409E-B3F9-794EB771A02B V1 EN

Figure 55: Signals for opening coil of circuit breaker 1

NOTIN OUT

AND6B1B2B3B4B5B6

OTRPPTRC1_TRIP CBXCBR1_ENA_CLOSE

GUID-10A5AF25-692A-4428-B23C-6FC59DF8EFE2 V1 EN

Figure 56: Circuit breaker 1 close enable logic

Connect the high priority conditions that have to be fulfilled beforethe closing of the circuit breaker is enabled. These conditionscannot be bypassed with bypass feature of the function.

OR6B1B2B3B4B5B6

O CBXCBR1_BLK_CLOSET2PTTR1_BLK_CLOSE

GUID-BEDD5E9B-8FD7-48F1-8DC9-C060134F8116 V1 EN

Figure 57: Circuit breaker 1 close blocking logic

The configuration includes logic for generating circuit breaker external closing andopening command with IED in local or remote mode.



Check the logic for the external circuit breaker closing commandand modify it according to the application.

ANDB1B2

O

ANDB1B2

O

ORB1B2

O

FALSE

FALSE

CBXCBR1_AU_CLOSE

CONTROL_LOCAL

CONTROL_REMOTE

GUID-8D8BDE72-2CE1-4661-9742-A0B3730A1456 V1 EN

Figure 58: External closing command for circuit breaker 1

ANDB1B2

O

ANDB1B2

O

ORB1B2

O

FALSE

FALSE

CBXBCR1_AU_OPEN

CONTROL_LOCAL

CONTROL_REMOTE

GUID-FE0D8E8E-344D-47C2-AA22-8B4AE2FF2AC5 V1 EN

Figure 59: External opening command for circuit breaker 1

The tap changer position indication TPOSSLTC1 can be made by using binarycoded information or using mA signal. It depends on the selected hardware options.By using mA/RTD card in the X130 slot, the tap changer position can be connectedas an mA signal. If the binary input output card is selected in the X130 slot, theposition indication can be made with binary coded information.

Set the parameters for TPOSSLTC1 properly.

TPOSSLTC1BI0BI1BI2BI3BI4BI5SIGN_BITTAP_POS

T_F32_INT8F32 INT8

X130_BI2_TAP_CHANGER_POS_BIT0_LSBX130_BI3_TAP_CHANGER_POS_BIT1X130_BI4_TAP_CHANGER_POS_BIT2X130_BI5_TAP_CHANGER_POS_BIT3

X130_BI6_TAP_CHANGER_POS_BIT4_MSB

X130_BI1_TAP_CHANGER_POS_SIGN_BIT

X130_AI1_TAP_CHANGER_POSITION

GUID-A52E8AB6-9566-454C-97B6-A0928A1B3BA9 V1 EN

Figure 60: Tap position indicator

3.4.3.5 Functional diagrams for measurement functions

The phase current inputs to the IED are measured by the three-phase currentmeasurement function CMMXU1. The current input is connected to the X120 cardin the back panel. The sequence current measurement CSMSQI1 measures thesequence current.



The three-phase bus side phase voltage inputs to the IED are measured by thevoltage measurement function VMMXU1. The voltage input is connected to theX120 card in the back panel. The sequence voltage measurement VSMSQI1measures the sequence voltage.

The measurements can be seen in the LHMI and they are available under themeasurement option in the menu selection. Based on the settings, function blockscan generate low alarm or warning and high alarm or warning signals for themeasured current values.

Three-phase power measurement PEMMXU1 measures the power and energy ofthe power system. The load profile function LDPMSTA1 is included in themeasurements sheet. LDPMSTA1 offers the ability to observe the loading historyof the corresponding feeder.

CMMXU1BLOCK HIGH_ALARM

HIGH_WARNLOW_WARN

LOW_ALARM

GUID-82461A8B-8DD2-4428-95D8-2D585B0FA933 V1 EN

Figure 61: Current measurement: Three-phase current measurement

CSMSQI1

GUID-633E3E98-5D22-4863-9C26-CE5B8B04EB07 V1 EN

Figure 62: Current measurement: Sequence current measurement


HIGH_WARNLOW_WARN

LOW_ALARM

GUID-60FFB542-2158-4D13-816E-2B7A8F76AF87 V1 EN


VSMSQI1

GUID-3BD3DD36-1BFE-4D0E-B6B4-936A29971959 V1 EN

Figure 64: Voltage measurement: Sequence voltage measurement

PEMMXU1RSTACM

GUID-3425719C-AB36-4F99-9C07-98531AFDCC56 V1 EN

Figure 65: Other measurement: Three-phase power and energy measurement



FLTMSTA1BLOCKCB_CLRD

GUID-1D4E60E1-DBD0-4F5F-AA58-654A04EA9CF3 V1 EN

Figure 66: Other measurement: Data monitoring

LDPMSTA1RSTMEM MEM_WARN

MEM_ALARM

GUID-9C02A820-00DC-4F2C-97FD-24C8D940686F V1 EN

Figure 67: Other measurement: Load profile record

3.4.3.6 Functional diagrams for IO and alarm LEDs

X130_BI2_TAP_CHANGER_POS_BIT0_LSB

X130_BI3_TAP_CHANGER_POS_BIT1



X130_BI6_TAP_CHANGER_POS_BIT4_MSB

X130_BI1_TAP_CHANGER_POS_SIGN_BIT







X130_AI1_TAP_CHANGER_POSITION

X130 (RTD).AI_VAL1

X130_AI3_AMBIENT_TEMP

X130 (RTD).AI_VAL3GUID-DE779076-E4CA-47F7-9ACF-E936A428D027 V1 EN




X110_BI1_TAP_CHANGER_OPERATING

X110_BI8_CB_OPENED

X110_BI7_CB_CLOSED

X110_BI4_RAISE_TAP_CHANGER_POSITION

X110_BI3_LOWER_TAP_CHANGER_POSITION

X110_BI2_MCB_OPENED







GUID-0B82D534-BE1C-49E7-990A-D8CC19EA699D V1 EN


GENERAL_START_PULSE

GENERAL_OPERATE_PULSE

OLATCC1_LOWER_OWN

OLATCC1_RAISE_OWN

CB_CLOSE_COMMAND

CB_OPEN_COMMAND

X100 (PSM).X100-PO2

X100 (PSM).X100-SO1

X100 (PSM).X100-SO2

X100 (PSM).X100-PO3

X100 (PSM).X100-PO4

X100 (PSM).X100-PO1

GUID-119693C4-CC01-4DA1-990D-D6CA034BE7DF V1 EN




OLATCC1_ALARM

OVERCURRENT_OPERATE_PULSE

VOLTAGE_PROT_OPERATE_PULSE

THERMAL_OPERATE_PULSE

X110 (BIO).X110-SO1

X110 (BIO).X110-SO2

X110 (BIO).X110-SO3

X110 (BIO).X110-SO4GUID-2982240D-9C7F-4CA3-BF15-C6528E34D980 V1 EN




LED1OKALARMRESET

LED2OKALARMRESET

LED3OKALARMRESET

LED4OKALARMRESET

LED5OKALARMRESET

PHPTOV_OPERATE

PHPTUV_OPERATE

ROVPTOV_OPERATE


FREQUENCY_OPERATE

GUID-E709B8ED-F2A6-44A9-B963-B56EF27A383E V1 EN

LED6OKALARMRESET

LED7OKALARMRESET

LED8OKALARMRESET

LED9OKALARMRESET

LED10OKALARMRESET

LED11OKALARMRESET

ORB1B2

O

SECRSYN1_SYNC_OK




ARC_FAULT_DETECTED


GUID-F80DAB18-75A7-4E19-AA98-3D759F3A6F28 V1 EN

Figure 72: Default LED connections



3.4.3.7 Functional diagrams for other timer logics

In addition, configuration also includes overcurrent operate, voltage operate andthermal operate logic. The operate logics are connected to pulse timer TPGAPC1for setting the minimum pulse length for the outputs. The output from TPGAPC1 isconnected to the binary outputs.

TPGAPC2IN1IN2

OUT1OUT2

ORB1B2

O

OVERCURRENT_OPERATE_PULSEVOLTAGE_PROT_OPERATE_PULSE

PHPTOV_OPERATEPHPTUV_OPERATE

PHxPTOC_OPERATE

GUID-E85CC8D9-4129-4B4B-B521-FEED164ED627 V1 EN

Figure 73: Timer logic for overcurrent and voltage operate pulse

TPGAPC3IN1IN2

OUT1OUT2

THERMAL_OPERATE_PULSET2PTTR1_OPERATE

GUID-158F2E86-837D-41F5-AC90-47A1AF1CFE90 V1 EN

Figure 74: Timer logic for thermal overload operate pulse

3.4.3.8 Other functions

The configuration also includes few instances of multi-purpose protection functionMAPGAPC, runtime counter MDSOPT, different types of timers and controlfunctions. These functions are not included in application configuration but theycan be added based on the system requirements.



74

Section 4 Requirements for measurementtransformers

4.1 Current transformers

4.1.1 Current transformer requirements for non-directionalovercurrent protectionFor reliable and correct operation of the overcurrent protection, the CT has to bechosen carefully. The distortion of the secondary current of a saturated CT mayendanger the operation, selectivity, and co-ordination of protection. However,when the CT is correctly selected, a fast and reliable short circuit protection can beenabled.

The selection of a CT depends not only on the CT specifications but also on thenetwork fault current magnitude, desired protection objectives, and the actual CTburden. The protection settings of the IED should be defined in accordance withthe CT performance as well as other factors.

4.1.1.1 Current transformer accuracy class and accuracy limit factor

The rated accuracy limit factor (Fn) is the ratio of the rated accuracy limit primarycurrent to the rated primary current. For example, a protective current transformerof type 5P10 has the accuracy class 5P and the accuracy limit factor 10. Forprotective current transformers, the accuracy class is designed by the highestpermissible percentage composite error at the rated accuracy limit primary currentprescribed for the accuracy class concerned, followed by the letter "P" (meaningprotection).

Table 22: Limits of errors according to IEC 60044-1 for protective current transformers

Accuracy class Current error atrated primarycurrent (%)

Phase displacement at rated primarycurrent

Composite error atrated accuracy limitprimary current (%)minutes centiradians

5P ±1 ±60 ±1.8 5

10P ±3 - - 10

The accuracy classes 5P and 10P are both suitable for non-directional overcurrentprotection. The 5P class provides a better accuracy. This should be noted also ifthere are accuracy requirements for the metering functions (current metering,power metering, and so on) of the IED.

1MRS757054 F Section 4Requirements for measurement transformers


The CT accuracy primary limit current describes the highest fault currentmagnitude at which the CT fulfils the specified accuracy. Beyond this level, thesecondary current of the CT is distorted and it might have severe effects on theperformance of the protection IED.

In practise, the actual accuracy limit factor (Fa) differs from the rated accuracylimit factor (Fn) and is proportional to the ratio of the rated CT burden and theactual CT burden.

The actual accuracy limit factor is calculated using the formula:

F FS S

S Sa n

in n

in

≈ ×

+

+

A071141 V1 EN

Fn the accuracy limit factor with the nominal external burden Sn

Sin the internal secondary burden of the CT

S the actual external burden

4.1.1.2 Non-directional overcurrent protection

The current transformer selectionNon-directional overcurrent protection does not set high requirements on theaccuracy class or on the actual accuracy limit factor (Fa) of the CTs. It is, however,recommended to select a CT with Fa of at least 20.

The nominal primary current I1n should be chosen in such a way that the thermaland dynamic strength of the current measuring input of the IED is not exceeded.This is always fulfilled when

I1n > Ikmax / 100,

Ikmax is the highest fault current.

The saturation of the CT protects the measuring circuit and the current input of theIED. For that reason, in practice, even a few times smaller nominal primary currentcan be used than given by the formula.

Recommended start current settingsIf Ikmin is the lowest primary current at which the highest set overcurrent stage is tooperate, the start current should be set using the formula:

Current start value < 0.7 x (Ikmin / I1n)

I1n is the nominal primary current of the CT.

Section 4 1MRS757054 FRequirements for measurement transformers


The factor 0.7 takes into account the protection IED inaccuracy, currenttransformer errors, and imperfections of the short circuit calculations.

The adequate performance of the CT should be checked when the setting of thehigh set stage overcurrent protection is defined. The operate time delay caused bythe CT saturation is typically small enough when the overcurrent setting isnoticeably lower than Fa.

When defining the setting values for the low set stages, the saturation of the CTdoes not need to be taken into account and the start current setting is simplyaccording to the formula.

Delay in operation caused by saturation of current transformersThe saturation of CT may cause a delayed IED operation. To ensure the timeselectivity, the delay must be taken into account when setting the operate times ofsuccessive IEDs.

With definite time mode of operation, the saturation of CT may cause a delay thatis as long as the time the constant of the DC component of the fault current, whenthe current is only slightly higher than the starting current. This depends on theaccuracy limit factor of the CT, on the remanence flux of the core of the CT, andon the operate time setting.

With inverse time mode of operation, the delay should always be considered asbeing as long as the time constant of the DC component.

With inverse time mode of operation and when the high-set stages are not used, theAC component of the fault current should not saturate the CT less than 20 times thestarting current. Otherwise, the inverse operation time can be further prolonged.Therefore, the accuracy limit factor Fa should be chosen using the formula:

Fa > 20*Current start value / I1n

The Current start value is the primary start current setting of the IED.

4.1.1.3 Example for non-directional overcurrent protection

The following figure describes a typical medium voltage feeder. The protection isimplemented as three-stage definite time non-directional overcurrent protection.

1MRS757054 F Section 4Requirements for measurement transformers


A071142 V1 EN

Figure 75: Example of three-stage overcurrent protection

The maximum three-phase fault current is 41.7 kA and the minimum three-phaseshort circuit current is 22.8 kA. The actual accuracy limit factor of the CT iscalculated to be 59.

The start current setting for low-set stage (3I>) is selected to be about twice thenominal current of the cable. The operate time is selected so that it is selective withthe next IED (not visible in the figure above). The settings for the high-set stageand instantaneous stage are defined also so that grading is ensured with thedownstream protection. In addition, the start current settings have to be defined sothat the IED operates with the minimum fault current and it does not operate withthe maximum load current. The settings for all three stages are as in the figure above.

For the application point of view, the suitable setting for instantaneous stage (I>>>)in this example is 3 500 A (5.83 x I2n). For the CT characteristics point of view, thecriteria given by the current transformer selection formula is fulfilled and also theIED setting is considerably below the Fa. In this application, the CT rated burdencould have been selected much lower than 10 VA for economical reasons.

Section 4 1MRS757054 FRequirements for measurement transformers


Section 5 IED physical connections

5.1 Inputs

5.1.1 Energizing inputs

5.1.1.1 Phase currents

The IED can also be used in single or two-phase applications byleaving one or two energizing inputs unoccupied. However, at leastterminals X120/7-8 must be connected.

Table 23: Phase current inputs included in configuration B

Terminal DescriptionX120-7, 8 IL1

X120-9, 10 IL2

X120-11, 12 IL3

5.1.1.2 Residual current

Table 24: Residual current input included in configuration B

Terminal DescriptionX120-13, 14 Io

5.1.1.3 Phase voltages

Table 25: Phase voltage inputs included in configuration B

Terminal DescriptionX120-1,2 U1

X120-3,4 U2

X120-5,6 U3

1MRS757054 F Section 5IED physical connections


Table 26: Phase voltage inputs included in configuration A

Terminal DescriptionX130-11,12 U1

X130-13,14 U2

X130-15,16 U3

Table 27: Reference voltage input for SECRSYN1 included in configuration A

Terminal DescriptionX130-9,10 U12B

5.1.1.4 Residual voltage

Table 28: Residual voltage input included in configuration A

Terminal DescriptionX130-17, 18 Uo

5.1.2 RTD/mA inputsRTD/mA inputs are optional for configuration B.

Table 29: RTD/mA inputs

Terminal DescriptionX130-1 mA1 (AI1), +

X130-2 mA1 (AI1), -

X130-3 mA2 (AI2), +

X130-4 mA2 (AI2), -

X130-5 RTD1 (AI3), +

X130-6 RTD1 (AI3), -

X130-7 RTD2 (AI4), +

X130-8 RTD2 (AI4), -

X130-9 RTD3 (AI5), +

X130-10 RTD3 (AI5), -

X130-11 Common1)

X130-12 Common2)

X130-13 RTD4 (AI6), +

X130-14 RTD4 (AI6), -

X130-15 RTD5 (AI7), +


Section 5 1MRS757054 FIED physical connections


Terminal DescriptionX130-16 RTD5 (AI7), -

X130-17 RTD6 (AI8), +

X130-18 RTD6 (AI8), -

1) Common ground for RTD channels 1-32) Common ground for RTD channels 4-6

5.1.3 Auxiliary supply voltage inputThe auxiliary voltage of the IED is connected to terminals X100/1-2. At DCsupply, the positive lead is connected to terminal X100-1. The permitted auxiliaryvoltage range (AC/DC or DC) is marked on the top of the LHMI of the IED.

Table 30: Auxiliary voltage supply

Terminal DescriptionX100-1 + Input

X100-2 - Input

5.1.4 Binary inputsThe binary inputs can be used, for example, to generate a blocking signal, tounlatch output contacts, to trigger the disturbance recorder or for remote control ofIED settings.

BIO0007 module is only available with configuration A.

Table 31: Binary input terminals X110-1...13 with BIO0005 module

Terminal DescriptionX110-1 BI1, +

X110-2 BI1, -

X110-3 BI2, +

X110-4 BI2, -

X110-5 BI3, +

X110-6 BI3, -

X110-6 BI4, -

X110-7 BI4, +

X110-8 BI5, +

X110-9 BI5, -

X110-9 BI6, -

X110-10 BI6, +

X110-11 BI7, +

X110-12 BI7, -

X110-12 BI8, -

X110-13 BI8, +



Table 32: Binary input terminals X110-1...10 with BIO0007 module


X110-5 BI1, -

X110-2 BI2, +

X110-5 BI2, -

X110-3 BI3, +

X110-5 BI3, -

X110-4 BI4, +

X110-5 BI4, -

X110-6 BI5, +

X110-10 BI5, -

X110-7 BI6, +

X110-10 BI6, -

X110-8 BI7, +

X110-10 BI7, -

X110-9 BI8, +

X110-10 BI8, -

Binary inputs of slot X130 are available with configuration A.

Table 33: Binary input terminals X130-1...8 with AIM0006 module


X130-2 BI1, -

X130-3 BI2, +

X130-4 BI2, -

X130-5 BI3, +

X130-6 BI3, -

X130-7 BI4, +

X130-8 BI4, -

Binary inputs of slot X130 are optional for configuration B.

Table 34: Binary input terminals X130-1...9


X130-2 BI1, -

X130-2 BI2, -

X130-3 BI2, +

X130-4 BI3, +




Terminal DescriptionX130-5 BI3, -

X130-5 BI4, -

X130-6 BI4, +

X130-7 BI5, +

X130-8 BI5, -

X130-8 BI6, -

X130-9 BI6, +

5.2 Outputs

5.2.1 Outputs for tripping and controllingOutput contacts PO1, PO2, PO3 and PO4 are heavy-duty trip contacts capable ofcontrolling most circuit breakers. On delivery from the factory, the trip signalsfrom all the protection stages are routed to PO3 and PO4.

Table 35: Output contacts

Terminal DescriptionX100-6 PO1, NO

X100-7 PO1, NO

X100-8 PO2, NO

X100-9 PO2, NO

X100-15 PO3, NO (TCS resistor)

X100-16 PO3, NO

X100-17 PO3, NO

X100-18 PO3 (TCS1 input), NO


X100-20 PO4, NO (TCS resistor)

X100-21 PO4, NO

X100-22 PO4, NO



5.2.2 Outputs for signallingSO output contacts can be used for signalling on start and tripping of the IEDOndelivery from the factory, the start and alarm signals from all the protection stagesare routed to signalling outputs.



Table 36: Output contacts X100-10...14

Terminal DescriptionX100-10 SO1, common

X100-11 SO1, NC

X100-12 SO1, NO

X100-13 SO2, NO

X100-14 SO2, NO

Table 37: Output contacts X110-14...24 with BIO0005


X110-15 SO1, NO

X110-16 SO1, NC

X110-17 SO2, common

X110-18 SO2, NO

X110-19 SO2, NC

X110-20 SO3, common

X110-21 SO3, NO

X110-22 SO3, NC

X110-23 SO4, common

X110-24 SO4, NO

Output contacts of slot X130 are available in the optional BIO module (BIOB02A).

Output contacts of slot X130 are optional for configuration B.

Table 38: Output contacts X130-10...18


X130-11 SO1, NO

X130-12 SO1, NC

X130-13 SO2, common

X130-14 SO2, NO

X130-15 SO2, NC

X130-16 SO3, common

X130-17 SO3, NO

X130-18 SO3, NC



5.2.3 IRFThe IRF contact functions as an output contact for the self-supervision system ofthe protection IED. Under normal operating conditions, the IED is energized andthe contact is closed (X100/3-5). When a fault is detected by the self-supervisionsystem or the auxiliary voltage is disconnected, the output contact drops off and thecontact closes (X100/3-4).

Table 39: IRF contact

Terminal DescriptionX100-3 IRF, common

X100-4 Closed; IRF, or Uaux disconnected

X100-5 Closed; no IRF, and Uaux connected



86

Section 6 Glossary

615 series Series of numerical IEDs for low-end protection andsupervision applications of utility substations, andindustrial switchgear and equipment

AC Alternating currentAI Analog inputASCII American Standard Code for Information InterchangeBI Binary inputBIO Binary input and outputBO Binary outputCB Circuit breakerCT Current transformerDC 1. Direct current

2. Disconnector3. Double command

DNP3 A distributed network protocol originally developed byWestronic. The DNP3 Users Group has the ownershipof the protocol and assumes responsibility for itsevolution.

DPC Double-point controlEMC Electromagnetic compatibilityEthernet A standard for connecting a family of frame-based

computer networking technologies into a LANFIFO First in, first outFTP File transfer protocolGOOSE Generic Object-Oriented Substation EventHMI Human-machine interfaceHSO High-speed outputHSR High-availability seamless redundancyI/O Input/outputIEC International Electrotechnical CommissionIEC 60870-5-103 1. Communication standard for protective equipment

1MRS757054 F Section 6Glossary


2. A serial master/slave protocol for point-to-pointcommunication

IEC 61850 International standard for substation communicationand modeling

IEC 61850-8-1 A communication protocol based on the IEC 61850standard series

IED Intelligent electronic deviceIP address A set of four numbers between 0 and 255, separated

by periods. Each server connected to the Internet isassigned a unique IP address that specifies thelocation for the TCP/IP protocol.

IRIG-B Inter-Range Instrumentation Group's time code formatB

LAN Local area networkLC Connector type for glass fibre cableLCD Liquid crystal displayLE Light EditionLED Light-emitting diodeLHMI Local human-machine interfaceLSB Least significant bitMAC Media access controlMCB Miniature circuit breakerMMS 1. Manufacturing message specification

2. Metering management systemModbus A serial communication protocol developed by the

Modicon company in 1979. Originally used forcommunication in PLCs and RTU devices.

Modbus TCP/IP Modbus RTU protocol which uses TCP/IP andEthernet to carry data between devices

PCM600 Protection and Control IED ManagerPO Power outputPRP Parallel redundancy protocolPTP Precision Time ProtocolRIO600 Remote I/O unitRJ-45 Galvanic connector typeRSTP Rapid spanning tree protocolRTD Resistance temperature detectorRTU Remote terminal unit

Section 6 1MRS757054 FGlossary


SAN Singly attached nodeSingle-line diagram Simplified notation for representing a three-phase

power system. Instead of representing each of threephases with a separate line or terminal, only oneconductor is represented.

SLD Single-line diagramSMV Sampled measured valuesSNTP Simple Network Time ProtocolSO Signal outputVT Voltage transformerWAN Wide area networkWHMI Web human-machine interface

1MRS757054 F Section 6Glossary


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www.abb.com/substationautomation

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