1 MFC2000-3A High-speed Bus Power Transfer System Users'Manual

MFC2000-3A

High-Speed Bus Power

Transfer System

User Manual

W i s c o m S y s t e m C o . , L t d .

Copyright Wiscom System Co., Ltd, All rights reserved

Version: MFC2000-3A-D V1.0 Published2008.4

Applicable to Indonesia PALABUHAN Project

This instruction is only for reference.

Table of Contents

1. Introduction ................................................................... 1

2. Hardware Configuration ........................................................ 2

2.1 Front-panel ......................................................................................................................................... 2 2.2 Backboard Plug-in and Terminals ...................................................................................................... 4

3. LCD Display and Operation .................................................... 13

3.1 Interface Structure ............................................................................................................................ 13 3.2 Interface & Operation Introduction .................................................................................................. 14

4. Setting Report ................................................................ 35

4.1 Setpoints ........................................................................................................................................... 35 4.2 Controls ............................................................................................................................................ 36 4.3 Description ....................................................................................................................................... 37

5. Running and Checking Illustration ............................................... 42

5.1 LED Indicators and DCS Signals ..................................................................................................... 42 5.2 Panel Checking ................................................................................................................................ 42

6. On-site Testing and Commissioning .............................................. 43

6.1 Preparation ....................................................................................................................................... 43 6.2 Static Debug Test ............................................................................................................................. 43 6.3 Unload Transmission Test ................................................................................................................ 45 6.4 Load Transmission Test .................................................................................................................... 46

7. Report ...................................................................... 48

7.1 Mark in the above when the test item is finished. .............................................................. 48 7.2 Reports preparation .......................................................................................................................... 48 7.3 Others ............................................................................................................................................... 48

8. Appendix .................................................................... 49

Diagram lists Figure 1 Front-panel Plan .................................................................................................................... 2 Figure 2 Backboard Plug-in & Terminal Diagram .............................................................................. 5 Figure 3 Menu Structure Diagram..................................................................................................... 13 Figure 4 Typical Interface Structure ................................................................................................. 14 Figure 5 Wring Display Interface (Default) ...................................................................................... 15 Figure 6 State Report Interface ......................................................................................................... 16 Figure 7 Lockout/blocking Logic Diagram ....................................................................................... 17 Figure 8 Action Report Interface ...................................................................................................... 19 Figure 9 Curve Display Interface ...................................................................................................... 20 Figure 10 Manual Transfer Interface ................................................................................................. 24 Figure 11 Semi-auto Parallel Transfer Interface (1st Step) ................................................................ 24 Figure 12 Semi-auto Parallel Transfer Interface (Success) ............................................................... 25 Figure 13 DI Debug Interface ........................................................................................................... 28 Figure 14 Regulate Precision Interface ............................................................................................. 29 Figure 15 GPS Port Monitoring Interface ......................................................................................... 30 Figure 16 Advanced Function Interface ............................................................................................ 31 Figure 17 Communication Setting Interface ..................................................................................... 32 Figure 18 Shortcut Key Setting Interface .......................................................................................... 33

MFC2000-3A High-speed Bus Power Transfer System User Manual V1.0

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1. Introduction Based on the first and second generation device, a third generation MFC2000-3A high-speed bus

power transfer device is developed. The new device with back-plugin and fieldbus backboard structure

employs 4U cabinet and 320X240 LCD display. Master CPU module adopts 32-bit SCM plus DSP. All

the features endow the device with improved technical performance, high reliability and friendly HMI

and so on..


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2. Hardware Configuration

MFC2000-3A device has the following hardware mainly

Front-panel

Backboard plug-inincluding terminals

2.1 Front-panel

Figure 1 Front-panel Plan

This panel covers LCD display, control keys, shortcut keys, status indicators and 232 communication

port.

2.1.1 LCD Display

The LCD with 320 X 240 dot-matrices is the communication bridge between operators and the device

itself. Through the control keys, operators can display measured values, set setpoints, implement manual

transfer, search oscillographic curve and print message etc.

2.1.2 Control Keys

The 7 control keys are

direction keys are used to move the cursor up/down/left/right to the desired


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message;

CANCELCancel the current operation or escape from the current menu.

OKConfirm the operation of menu selection or value modification.

RESETReset master and slave CPUs and clear all signals.

2.1.3 Shortcut Keys

Key1~4The concrete functions are listed in the right shortcut bar. Users can also self-define

their separate functions as they need.

Key 5Also called Help key. Press it, menu-related topics will be displayed; in default menu,

current device running status will be indicated.

2.1.4 Panel Status Indicators

There are 10 indicator lights in the panel

RUNThe LED flashes slowly when the device runs normally, it flashes fast when the device is

blockedthe LED will be blacked out when the device is in debugging state or CPU doesnt

work.

TRBLOCKTransfer Blocking Indicator. The LED illuminates when the device is in

lockout/blocking status, no transfer is permitted.

ACTThe LED illuminates when the device has finished the transfer operation just now and it

extinguish after resetting.

WORKThe status indicator illuminates when the work power source works.

STANDBYThe status indicator illuminates when the standby power source works.

REMOTEIts on when the device is in remote operation mode, otherwise, in local mode.

(RLYACT)RLYACT is not used yet.

RESERVEReserve for future use.

RXCommunication receiver between the device and PC.

TXCommunication sender between the device and PC.

2.1.5 232 Communication Port

Users can implement setting modification, event query, oscillographic wave print operations etc after


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connecting PC, installed MFC2000-3A system software with this port.

2.2 Backboard Plug-in and Terminals

2.2.1 Plug-in Components Plan


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Figure 2 Backboard Plug-in & Terminal Diagram NoteTerminals in parenthesis are not used yet.


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2.2.2 Plug-in Components Introduction

Power ModuleEMPW400

Convert DC220V or DC110Vvoltage into small voltage +5V15V and +24V for device

internal use. The tailor-made voltage delay circuit can ensure no misoperation during the process

of power-on and power-off. The power source is for AC/DC both.

AI ModuleMAI400

AC Input module.Isolate and transform the secondary output current (CT) and voltage (VT)

into small signals for master CPU component.

DI ModuleEMDI400

Digital Input module.Send the Digital inputs (dry contacts) from console, protection circuit and

other control devices to CPU after undergoing relay isolation and photoelectric isolation.

Signal ModuleEMSO400, EMSO-401

EMSO400DCS signal module

EMSO401Central control signal module

The digital signal outputs are designed to connect with dry contacts. This component can be

connected with LED board, DCS system or other devices.

Output ModuleEMDO400,EMDO401

Group and send close/trip commands from CPU to output relay after photoelectric isolation and

middle relay isolation and amplification.

Master CPU ModuleEMCPU400

Undertake measurement, calculation and judgment functions etc., the communication between

master and slave CPUs are implemented through dual-SPI.

Slave CPU ModuleEMCPU401

This module is responsible for LCD display, keyboard operation, communication and print etc.

Test ModuleEMTEST400

It includes analog CB, control button and signal indicators so on, even without practical

operations, users can still test the performance of internal input & output circuit. The special


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hardware switch supplied can cut off the test circuit in normal operation condition, while connect

it when testing.

2.2.3 Terminal Connection Instruction

Power ModuleEMPW400

DC+DC- (PWR)connected with device power source220/110VDC/AC power source

GNDground.

AI ModuleMAI400

UaUbUcUnAuxiliary bus 3-phase voltage. UaUb and Uc for line voltage Ua, Ub

Uc and Un for phase voltage.

UgzUgz*Work power voltage (auxiliary branch or VT voltage), which can be line voltage

or phase voltage.

UbyUby*Standby power voltage, which can be phase-to-phase voltage or phase-to ground

voltage.

Urs1Urs1*Urs2Urs2*Reserved.

IgzIgz*Branch current input, which can be phase-to-phase current or phase-to-ground

current.

IbaIba*IbbIbb*IbcIbc*Standby branch 3-phase current input.

DI ModuleEMDI400

RLYInitXC-1Relay initiate contact. Connected with output contacts of generator,

transformer or generator-transformer unit. Pickup mode is closed short-pulse.

RLYBlock(XC-2)Relay blocking contact. Connected with some protection output contacts.

When these protections work, the transfer system will be blocked. Pickup mode is closed

short-pulse.

WorkCB(XC-3)Auxiliary make contact of work power supply.


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StbCB(XC-4)Auxiliary make contact of standby power supply.

VTIS(XC-5)Auxiliary make contact of VT isolating switch.

ManInit(XC-6)Initiating manual transfer contact. The pick-up mode is closed short-pulse

( 50ms). This signal is valid only when the setting Control Mode is set as Remote.

ManMode(XC-7)Manual transfer mode selection contact. The pickup mode is long-holding.

Disconnected, it is Parallel Transfer; Connected, its Sequential Transfer (when setting Remote

Tran Group is set as Par Seq) or Simultaneous Transfer (when setting Remote Tran Group is

set as Par Sim). This signal is valid only when the setting Control Mode is set as Remote.

TranExit(XC-8)Contact for Enable/Disable transfer manually. Disconnected, transfer is

enabled; connected, transfer function is disabled. When the transfer function is disabled, an alarm

signal will be sent to operators. The pickup mode is long-holding.

RSV1(XC-9)Reserved.

Reset(XC-10)Contact for resetting device. The pick-up mode is closed short-pulse(50ms).

After-transfer blocking/lockout, users should clear fault or abnormity first and then reset the

device and clear signals.

SCBOEna(XC-11)Enable/Disable Single-Circuit-Breaker Operation manually. The pickup

mode is long -holding. Disconnected, the function is disabled; connected, SCBO is enabled.

SCBCWork(XC-12)Single-Circuit-Breaker Close Operation contact, to close working

transformer breaker remotely. This signal is valid only when the device is in remote control mode.

The pick-up mode is closed short-pulse(50ms).

SCBCStb(XC-13)Single-Circuit-Breaker Close Operation contact to close standby LV

transformer breaker remotely. The pick-up mode is closed short-pulse (50ms). The signal is

valid only when the device is in remote control mode.

(RLYExit)XC-14Not used yet.

+24V(XC-15): +24V DC power supply output contact, connected with debugger.

COMMON(XC-16)Common terminal.


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DCS Signal Module & Central Control Signal ModuleEMSO400EMSO401

All signal outputs are connected with dry contacts.

SuccessXG1-1XG1-2Make contact. Signals for successful completed transfer. It will

be hold until the device is reset.

Fail ( XG1-3XG1-4)Make contact. Signal for failed transfer. It will be hold until the device

is reset.

TrBlock (XG1-5XG1-6)Make contact. Signals for transfer blocking. It will be hold until the

blocking is cleared and the device is reset . The reasons for transfer blocking:

VT fuse-lossBoth breakers same statusDevice faultRelay blockingStandby-Source-

Under-Voltage blocking or Transfer disabled

After transfer blocking.

TrExit (XG1-7XG1-8)Make contact. When the device is in the following situations, the

signal will be sent and the device cannot undertake transfer operation. If any of the following

situations is not met, the signal will be cleared and the device is allowed to transfer without

resetting.

Digital input TranExit is closed

Setting Transfer is set as Disable

Transfer methods , including Fast Transfer, Lead Phase TransferLead Time Transfer

Residual Voltage Transfer and Fixed Time Transfer are all disabled.

PWROff (XG1-9XG1-10XF1-9XF1-10)Break contact. Disconnected, the device has

power, connected, power is lost. These two pair terminals have the same function.

RT/LC ( XF1-1XF1-2)Dry contact. Disconnected, it is remote control; connected, it is local

control.

Par/Seq(Par/Sim) ( XF1-3XF1-4)Disconnected, the remote transfer mode is Parallel

Transfer; connected, it is Sequential Transfer (when setting Remote Tran Group is set as Par

Seq) or Simultaneous Transfer (when setting Remote Tran Group is set as Par Sim)

XF1-5XF1-6& XF1-7XF1-8Not yet used.

BSS (XG2-1XG2-2)Make contact. Signals for breaker status abnormity. Under the


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following conditions, the device will block the transfer function and send the signals.

Abnormal situations: Work breaker and standby breaker are closed or open together, or VT

isolating switch is open..

SSUVB (XG2-3XG2-4)Make contact. Signals for Standby-Source-Under-Voltage-Blocking.

When standby power voltage is lower than setting SSUV Vol Amp and the setting SSUVB is

enabled, the contact is closed. It will be kept until the problem is solved and the standby power

voltage gets right.

NoteWhen standby VT is taken out of service for maintenance, operators can disable the

Standby-Source-Under-Voltage-Blocking function through setting menu. In this case, the

device can transfer normally when the standby power source has power, if power is lost, the

device can only implement Residual Voltage Transfer and Fixed Time Transfer.

VTFL (XG2-5XG2-6)Make contact. When VT fuse loss is detected, transfer function is

blocked and the signal is sent. It will be kept until the problem is solved and the device is reset.

Fault (XG2-7XG2-8)Make contact. It will block the transfer function and send the signal

when fault is detected in self-check process. In fault report, operators can find out the detailed

information about the fault. It will be kept until the problem is solved and the device is reset.

AAP (XG2-9XG2-10)Make contact. When transfer is initiated, this contact is closed to

initiate the after-accelerated protection of branch protection. Contact closing duration is transfer

time + 500ms.

PSCBO(XF2-1XF2-2)Make contact. If the Single-Circuit-Breaker Close Operation is

permitted, the signal is sent.

RSV1RSV2RSV3RSV4(XF2-3XF2-4, XF2-5XF2-6, XF2-7XF2-8, XF2-9

XF2-10)Make contact. Reserved for future use.

DO Module 1EMDO401

CloseWork (XE1-1XE1-2)Work power close Output. This contact is current-self-holding

mode.

TripWork (XE1-3XE1-4) Work power trip Output. This contact is current-self-holding

mode.

RSV1RSV2(XE1-5XE1-6, XE1-7XE1-8)Reserved output contacts.


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LoadShed1LoadShed2 ( XE1-9XE1-10 ,XE1-11XE1-12)Output contacts for 1st load

shedding and 2nd load shedding.

DO Module2EMDO400

CloseStb-L (XE2-1XE2-2)Standby power LV side close Output. This contact is

current-self-holding mode.

TripStb (XE2-3XE2-4)Standby power trip output. Pickup mode is the same as above.

CloseStb-H (XE2-5XE2-6)Standby transformer HV side Close Output. Pickup mode is the

same as above.

(RelayOTP) (XE2-7XE2-8)not used yet

RSVOut1RSVOut2 (XE2-9XE2-10 ,XE2-11XE2-12)Reserved.

Master CPU ModuleEMCPU400

DEBUGDebug Port. Connected with 232 port .Basically, users can not use it.

Slave CPU ModuleManagement ModuleESCPU401

DEBUGDebug Port.Connected with 232 port .Basically, users can not use it.

PrintPort1Printer interface.

NET1ANET1BFiledbus 485 port. Communication protocol could be MFC1.0 or Modbus.

NET2ANET2BFiledbus 485 port. Communication protocol could be MFC1.0 or Modbus.

GPS+GPS-Connected with external 24V second pulse signal.

Test ModuleEMTEST400

For the convenience of on-site testthe device is equipped with a test module.

NoteAfter the test, switches K1~K6 must be turned off and switch K7 is on. Or operators can

plug out the module.

Panel indicators and switches in test module


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WorkIlluminated when the work power switch is closed.

Standby Illuminated when the standby power switch is closed.

TestState Illuminated when the device is in testing status.

CloseWorkTo close the work power switch in test board.

TripWorkTo trip work switch in test board.

CloseStandbyTo close standby switch in test board.

TripStandby To trip standby switch in test board.

Switches in test board

K1Close Enable Switch. When the switch is tripped, the work switch in test board can not be

closed.

K2Trip Enable Switch. When the switch is tripped, the work switch in test board can not be

tripped.

K3When the switch is in open status, CPU treats the work switch in open status always.

K4Close Enable Switch. When the switch is tripped, the standby switch in test board can not be

closed.

K5Trip Enable Switch. When the switch is tripped, the standby switch in test board can not be

tripped.

K6When the switch is in open status, CPU treats the standby switch in open status always.

K7Test switch. When the device is implementing transfer test, this switch must be turned to

testing status, after the test, turn it back to running status.


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3. LCD Display and Operation

MFC2000-3A device adopt 320*240 LCD. Graphics display mode and hotkeys help users simplify the

operation effectively.

MFC2000-3A menu structure is as follows

Figure 3 Menu Structure Diagram

3.1 Interface Structure

Typical interface structure is as follows:

Take main menu as an example. Basically, the interface can be divided into three parts:

Main ViewOn the left-up of the whole screen.

The relevant functions in different interfaces are different.


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Status barIts on the bottom of the whole screen, mainly to show the running status and time

etc. The icons and their meaning in the status bar are shown below:

The master CPU is send oscillagraphic curves to slave CPU.

The communication between master CPU and slave CPU is interrupted.

The number 1,2,3 means running mode 1mode 2 and mode 3 separately.

The device is in blocking status.

Master CPU is implementing transfer operation.

Shortcut BarOn the right side of the whole screen.

Functions in the shortcut bar correspond with hotkeys (shortcut keys) in the panel. Different

interfaces have different shortcut icons as well as different hotkey functions.

Figure 4 Typical Interface Structure

3.2 Interface & Operation Introduction

After boot up or press the button Cancel continuously, the device will enter default interface

automatically. Default interface will display Wiring(Connection) or System information, dependent

on users setting.


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Press any key except Reset and Help to enter Main menu interface.

Generally, Wiring display interface is the suggested default interface.

MFC2000-3A device displays system diagram in graphics stamped with related measured parameters.

In the following diagram, except some real-time measured quantities, the position status of work breaker,

standby breaker and VT isolating switch also are displayed practically.

Figure 5 Wring Display Interface (Default)

Note: Standby frequency displayed is either work frequency (fgz) or standby frequency (fby) which

depends on the work breaker status. When the work breaker is closed, standby frequency (fby) is

adopted; when it is open, work frequency (fgz) is adopted.

3.2.1 Main Menu

Enter default interface automatically after the startup, press Cancel key to enter Main menu

interface, see figure 4. Press , , and keys to get to relevant submenu, and then press

OK key or relevant hotkeys to enter the submenu. Press Cancel to return to default interface.

3.2.2 Measure

This submenu has three items: WiringDisp, PhaseDisp and ListDisp.

Press , , or keys to find the relevant item and then press OK to enter the interface.


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WiringDisp

Wiring(connection) display interface.See Figure 5.

PhaseDisp

Display the relationship between bus voltage and work voltage/standby LV voltage in phase, from which users can find out the phase angle change between the two voltages easily.

ListDisp

Display the values of measured quantities and DI quantities in table.

3.2.3 Report

Under this submenu, there are 6 items: StateRPT, ActRPT, AbnEvent, RunRecord,

DIRecord and StatiRPT.

Press , , or keys to find the relevant item and then press OK to enter the submenu.

StateRPT

Figure 6 State Report Interface

Just as shown in figure 6, transfer blocking/lockout situations and reasons are displayed here.


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BSS

Fault

Realy

SSUVB

VTFL

DisableTransfer

ExtTran

IntTran

AftTran

Methods

Transfer blocking

Non-Self-Resetblocking

Self-Resetblocking

Figure 7 Lockout/blocking Logic Diagram

Figure7 shows the lockout/blocking logic. Transfer blocking/lockout is a general blocking status.

When any of the following situations occurs, the device enters blocking status and cannot implement

transfer function. The situations include:

1) Relay: relay blocking

2) VTFL: Abbreviation of VT fuse-lose blocking

3) AftTran: Abbreviation of after transfer blocking

4) VTIS: if the VT Isolating switch is open, transfer is blocked.

5) BSS: Abbreviation of breakers same status blocking

6) SSUVB: Abbreviation of standby-source under-voltage blocking

7) Fault: Device fault blocking.

7) ExtTran: External transfer blocking.

8) IntTran: Internal transfer blocking.

9) Methods: All transfer methods blocking.

The above lockout/blocking reasons can be classified as: self-reset lockout/blocking and

non-self-reset lockout/blocking. Self-reset lockout/blocking means when the lockout condition is cleared,

the device can recover to running status automatically; Non-self-reset lockout/blocking means the device


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can return to running status only by manual reset after lockout condition is cleared.

Self-reset lockout/blocking

SSUVB: when the setting SSUVB is set as Enable, and standby source voltage is lower than

the setting SSUV Vol Amp, the device blocks the transfer.

NoteWhen the setting SSUVB is set as Disable, although the voltage is lower than the

setting SSUV Vol Amp, the transfer function is not blocked, but only Residual-voltage

Transfer or Fixed Time Transfer can be adopted.

ExtTran: if digital input contact TranExit is closed, the transfer function is blocked. If the

contact is open, the device recover running status.

IntTran: if the setting Transfer is set as Disable, the transfer function is blocked.

Methods: All transfer methods are disabledWhen the setting Fast Tran, DIP Lead Phase

Tran, DIP Lead Time Tran, ResVol Tran and Fixed Time Tran are all disabled, the

transfer function is blocked.

Non-self-reset lockout/blocking

FaultWhen device faults are detected in the self-check process, the transfer function is

blocked.

BSSWhen work breaker and standby breaker both are closed or open , the transfer function is

blocked.

VTIS: When VT isolating switch is open, the transfer function is blocked.

RelayWhen external digital input RLYBlock is closed, the transfer function is blocked.

VTFLWhen VT fuse loss is detected through analyzing voltage, the transfer will be blocked.

AftTranOne transfer has been implemented just now, the function will be blocked. Only after

resetting device manually, it can return to running status.


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ActRPT

Figure 8 Action Report Interface

Latest 36 action reports can be kept at most.

If the chosen action report includes oscillagraphic curve, operators can press hotkey2 to search

related curve. See figure 9 for reference. The oscillagraphic curves in 5s (0.1 + 4.9) about UmaUmb

UmcUbyUgzIgzIbaIbbIbcdfdq and fm etc, will be shown.

This device adopts two kinds of oscillagraphic recording formats.

for Uma, Umb, Umc, Uby, Ugz, Igz, Iba, Ibb and Ibc curve display. 24

samples per cycle will be recorded from100ms before initiating to 200ms after initiating, and then, 12

samples per cycle will be recorded for 2 seconds (time from 200ms to 2.2S), afterwards, one effective

value per 10ms is kept for 2.7 seconds.

For Uma, df, Uma, dq, Uma, fm and Uma, df,,dq curve display. One effective value per

10ms will be recorded within 5S, (time from 100ms before initiating to 4.9s after initiating).

In Figure 9, press CHOS CURV hotkey to get a dialog box. Press , and OK keys to

select or cancel a curve display. Only one curve can be displayed one time. After selection, press

Cancel key to return to curve display interface.


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Note: for convenience of display, the wave of df is magnified 60 times and current wave is magnified

20 times.

Figure 9 Curve Display Interface In Figure 8hotkey3 is to view detailed action information of current report.

Action report covers the following information

Initiating time.

Initiating methodRelay, Manual, Under-voltage and Auto-trip etc,.

Transfer modeSequential, Auto parallel, Semi-auto parallel and Simultaneous

Transfer methodFast, Lead angle, Lead time, Residual voltage transfer and so on

Close/trip command records.

Closing conditionsFast Transfer, Delayed In-Phase Transfer, Residual-voltage Transfer and Fixed Time Transfer etc,.

Time, frequency difference, phase difference, bus 3-phase voltage and branch current when the device is initiated.

Time, frequency difference, phase difference, bus 3-phase voltage and branch current when tripping command is issued.

Time, frequency difference, phase difference, bus 3-phase voltage and branch current when breaker is tripped.

Time, frequency difference, phase difference, bus 3-phase voltage and branch current when closing command is issued.

Time, frequency difference, phase difference, bus 3-phase voltage and branch current when breaker is closed.


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AbnEvent, RunRecord and DIRecord

These three interfaces and operation are similar, thus we will only take AbnEvent(Abnormal Event)

interface as an example

Users can view latest 72 abnormal events at most. Each screen can display 9 records with event

number, event date and event description etc.

Abnormal events include following types :

Abnormal Event Type

(shown on device)

Corresponding Full Name

SSUV Standby-Source Under-Voltage

SSV Normal Standby Source Voltage Normal

BKS Open.E Breakers All Open when Electrified

BKS Closed.E Breakers All Closed when Electirfied

BKS Closed.CW Breakers All Closed when Close Work

BKS Closed.CS Breakers All Closed when Close Standby

BKS Open.TS Breakers All Open when Trip Standby

BKS Open.SCBO Breakers All Open when Single-Circuit-Breaker Operation

VTIS Open VT Isolating Switch Open

VTFL VT Fuse-Loss

Device Fault

Abnormal Init Abnormal Initiated

Work Fake Open

NoteWork Fake Open means the device detects the work switch auxiliary contact is open, but

the work branch current is higher than the setting Under-current Value.

Run records include following types:

Run Record Type

(shown on device)

Corresponding Full Name

Electrify Electrify Device

Device Reset

Remote Reset

Comm Reset Communication Reset


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Modify Setting

Ext Disable Tran External Disable Transfer

Ext Enable Tran External Enable Transfer

Int Disable Tran Internal Disable Transfer

Int Enalbe Tran Internal Enalbe Transfer

Dis Tran Methods Disable all Transfer Methods

Free Dis Methods Free Disable all Transfer Methods

Modify Presicion

Ext Enalbe SCBO External Enable Single-Circuit-Breaker Operation

Ext Disable SCBO External Disable Single-Circuit-Breaker Operation

Int Enalbe SCBO Internal Enable Single-Circuit-Breaker Operation

Int Disable SCBO Internal Disable Single-Circuit-Breaker Operation

Note: External means operation through digital input contacts, which are controlled by DCS or

console; Internal means operation through device panel, such as Setting interface and so on.

DI(Digital Input) records are corresponding with DI terminals.

StatiRPT

Statistic report can show the following contents

ActTimes: The action times since the device is utilized.

SucTimes: The successful transfer times.

AbnEvent: Total abnormal event number.

DIRecord: Digital input status changing times.

ModSetting: Setting modification times.

The times of each kind of transfer method.

3.2.4 Setting

Setting menu has five screens totally which can be displayed through hotkey operation.

Setting modification procedure

Choose this submenu and press OK key


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Input the correct password and press OK key to get a dialog box prompting that the

password is correct, and then press any key to cancel the box.

Press and key or PAGE Up or PAGE DOWN key to get to the wanted item.

Press or to move the cursor to wanted place.

Press VALU PLU1or VALU RDU1 to change the number and then press OK to

confirm the operation.

NoteEach modification is followed by the press of OK key.

3.2.5 Clear

In this menu, you can clear the reports and take Clear Run Record as an example to show the

procedure.

Move the cursor to Clear Run Record

Input the correct passport and then press OK

Press CNFM CLER in the shortcut bar to confirm the operation and clear records.

3.2.6 ManTran

Manual transfer, which is bidirectional, can be classified as local and remote manual transfer. Local

manual transfer means to implement transfer operation in the device itself(through ManTran

interface to operate);remote transfer means the operation is implemented in console or DCS system.

Transfer mode includes: Auto parallel transfer, Semi-auto parallel transfer, Sequential transfer and

Simultaneous transfer.

Local semi-auto parallel transfer

Take the transfer from work to standby as an example.

Preparation

Set Control mode in Setting submenu as Local

Set Local ManTran Mode in Settings submenu as SAuto Parallel(Note: SAuto is the

abbreviation of Semi-auto)

Ensure the device is in normal running status. (no blocking situations)

Operation


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Enter ManTran submenu shown in Figure 10.

Input the correct passport and press OK key

Press EXEC ACT hotkey to close standby breaker, shown in Figure 11. After the

implementation, a successful closing operation message is displayed, if it failed, the transfer is

disabled.

Press EXEC ACT key to trip work breaker, shown in Figure 12.

Figure 10 Manual Transfer Interface

Figure 11 Semi-auto Parallel Transfer Interface (1st Step)


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Figure 12 Semi-auto Parallel Transfer Interface (Success)

NoteDuring the manual transfer process, there is an icon in status bar.

Local auto parallel transfer, sequential transfer and simultaneous transfer

Take the auto parallel transfer from work to standby as an example.

Preparation

Set Control mode in Settings submenu as Local

Set Local ManTran mode in Settings submenu as Auto Parallel

Ensure the device is in normal running status.

Operation

Enter ManTran submenu.

Input the correct passport and press OK

Press EXEC ACT button. The device will close the standby breaker and trip work breaker at

the same time automatically.

Remote semi-auto parallel transfer


Preparation

Set Control mode in Setting submenu as Remote


26

Set Remote ParTran Mode in Setting submenu as Semi-auto

Ensure the device is in running status.

Operation

Set digital input ManMode as Parallel in console or DCS system;

Press the button of Manual Initiate in console or DCS system, the standby breaker is closed

automatically.

After confirmation of the closing operation, operator will trip work breaker manually.

Then the LED indicators TRBLOCK and ACT are illuminated, the transfer process is

over.

Remote auto parallel transfer:


Preparation

Set Control Mode in Setting submenu as Remote

Set Remote ParTran Mode in Setting submenu as Auto


Operation

Set digital input ManMode as Parallel in console or DCS system;

Press button of Manual Initiate in console or DCS system, the device will issue commands

to close standby breaker and trip work breaker at the same time automatically.


over.

Remote sequential, simultaneous transfer

These two transfer methods are similar except the setting Remote Tran Group. Take the sequential

transfer from work to standby as an example.

Preparation

Set Control Mode in Setting submenu as Remote.


27

Set Remote Tran Group as Par Seq.


Operation

Set ManMode as Sequential in console or DCS system;

Press the button of Manual Initiate in console or DCS system, the work breaker is tripped

first and then the standby breaker is closed automatically.


over.

3.2.7 DUBUG

There are five items under this submenu: Simulate, SCBO, DI Debug, Precision and Watch

Comm.

Press , , or key to get to the wanted option and press OK key to enter related

interface.

Note: when the device is in debugging status, RUN LED indicator will stop flashing. Remote

resetting command and communication resetting command play no role.

Simulate

Transfer simulation is bidirectional and it used to examine trip-close circuit before the device is

placed into operation.

The process is

Press or key to the wanted option

Input the correct password and press OK key, in this case, a dialog box will appear

indicating the password is correct, and then press any key to return it.

Press CNFM EXEC hotkey. If the circuit works well, it will return to Tran Success,

otherwise, return to Tran Failure.


28

SCBO

The function of this interface is the simulation of Single-Circuit-Breaker operation. Only one breaker is involved in SCB Operation each time. The operation process is similar with it of transfer simulation.

DI Debug

It is used to check whether the external Digital Input circuit works well. See the following figure, White dot means closed, blue dot means open..

Figure 13 DI Debug Interface

Precision

Just as shown in Figure14the function of this interface is to compensate the difference between the

measured value and the real value of voltage, current and phase difference etc, caused by transmission

disturbance or measurement circuit error.

The second row data is benchmark value, the third row is real value. Precision regulation enables the

real value to close to benchmark value.


29

Figure 14 Regulate Precision Interface

There are two regulation modes: Auto and Manual. Press the hotkey SWTH MODE to choose

regulation mode.

Auto regulation

1. when adjusting, AI inputs should be supplied with rated voltage and current ( phase voltage

is 63.5vline voltage is 110v and current is 5.00A). Work voltage and standby voltage are in

phase.

2. Input the correct password and press OK key.

3. Choose Auto mode.

4. Press OK key. Through the calculation of inner software, the device will adjust the

coefficient automatically.

5. Finish massage will be displayed in the screen after the adjustment.

Manual regulation

1. when adjusting, AI terminals should be supplied with rated voltage and current ( phase

voltage is 63.5vline voltage is 110v and current is 5.00A). Work voltage and standby voltage

are in phase.

2. Input the correct password and then press OK

3. Choose Manual mode.

4. Move the cursor to the wanted value and set the value through VALU PLU1 and VALU


30

RDU1 hotkeys.

Note.dq1 compensates the error caused by measuring the phase difference between

standby branch and bus; dq2 compensates the error caused by measuring the phase

difference between work branch and bus. If these two precisions are to be adjusted, they

should be done in the related status.

Watch Comm

The function of this interface is to watch the communication between the device and external devices.

Its port could be 485 port1, 485 port2, GPS port or inner SPI. Press SWTH PORT hotkey to choose

wanted port. Press STOP/BEGN WATH hotkey to stop the process or start the process. Press CLER

SCRN hotkey to clear the screen.

The monitoring interface is divided into two parts. The upper part is to display message received and

the lower part is for message sent. Each message is displayed in two lines, the symbol > means the

displayed message is the current sending/receiving message.

GPS monitoring interface is different from others. When the device receives GPS signals, GPS level

number will be shown in the upper message zone. If the number increases continuously, it means the

GPS port works well; if the number doesnt change, that means the port fails.

Figure 15 GPS Port Monitoring Interface


31

Advanced function

If operators input super-password (0100) when entering Debug submenu, the shortcut bar will show

ADVS FUCT option. On the option with two items: Reserve and IniEERAM. Reserve interface

is used to set reserved output and signals; IniEERAM interface is used to initialize EERAM, which is

to recover settings and precisions to factory default.

NoteThis advanced function is used for factory debugging, thus users had better not use it,

and otherwise, if the device fails due to this reason, Wiscom do not take any responsibility!

Figure 16 Advanced Function Interface

3.2.8 SetSystem

This submenu has seven options: Clock, Password, Comm, Shortcut, DefScrn and

Language.

Press , , and key to get to the wanted option, and press OK to enter the related

interface.

Clock

Set time of device in this interface.

Password

The procedure is as follows


32

Input the old password to Old PSW box and.

Move cursor to New PSW box and input the new password.

Input the new password to Ensure PSW box.

And then press OK to finish the modification.

Note: 0100 is the super password, thus 0100 is not recommended here.

If users forget their passwords, they can solve the problem as follows:

Input 0100 in the Old PSW box.

Move cursor to New PSW box and input the new password.

Input the new password again to Ensure PSW box.

And then press OK key to finish the modification.

Comm

The function of this interface is to set device address, communication protocol and baud rate.

Figure 17 Communication Setting Interface

Device address: 001~255

Communication port: net1 net2 and com, among which net1 and net2 are 485 port, for

communication with DCS system.Com is 232 port for communication with portable PC.


33

Communication protocolMFC1.0, MODBUS.

Baud rate48009600192003840057600 and 115200.

Take NET2 amendment as an example to show the operation.

Press SWTH PORT hotkey to switch to Net2 port.

Input the correct password and press OK key

Amend parameters about net2. NoteEach parameter modification is followed by OK

pressing

Escape from the current interface.

Shortcut(Hotkey)

Set shortcut keys(hotkeys) in the main menu interface.

Figure 18 Shortcut Key Setting Interface

Shortcut key setting processtake shortcut key 4 as an example

PressSHT CUT4button

Press , , and to choose the wanted function.

Press OK to confirm the setting.

DefScrn

The function of this interface is to set default interface. At present the device supplies users with two

default interfaces---Wiring display and System information. Choose the wanted default interface and

press Ok key to save setting.


34

Language

In order to exploit international market, the new generation transfer device supports multi-languages.

Switch between Chinese and English is available.

3.2.9 Print

Print submenu has 6 options: ActReport, AbnEvent, RunRecord, DIRecord Statistic,

Setting.

Press , , and keys to choose the wanted option, and then press OK key to enter the

wanted interface, choose the object and print the content.

If want to print the waveform of action report, users are suggested to download the curves to PC

through MFC2000-3A management software and then print it.


35

4. Setting Report

All settings can be set in LCD display through the buttons according to the menu indication, but

before modification, operators must input correct 4-bit password. The factory default password is 1000

users can set their own password as they like.

4.1 Setpoints

Default values are the reference setpoints when the breaker close time is 65ms. Operators

should regulate them according to the on-site situation

Item Name Unit Range Default Full Name

1 Running Mode

NoneMode1Mode2

Mode3

Mode1

2 ParTran Delta Vol 020 20 Parallel Transfer Delta Voltage Limit 3 ParTran Delta Freq Hz 0.020.50 0.50 Parallel Transfer Delta Frequency Limit 4 ParTran Delta Phase D 0.520.0 15.0 Parallel Transfer Delta Phase Limit 5 ParTran Trip Delay s 0.015.00 0.50 Parallel Transfer Trip Delay 6 SimTran Close Delay Ms 1500 50 Simultaneous Transfer Close Delay 7 Standby Close Delay Ms 0120 0

8 FastTran Delta Freq Hz 0.12.0 1.5 Fast Transfer Delta Frequency 9 FastTran Delta Phase D 0.560.0 30.0 Fast Transfer Delta Phase

10 DIP Tran Delta Freq Hz

0.15.0 5.0 Delayed In-Phase

Transfer Delta Frequency

11 Lead Phase of DIP D -30-120 -90 Lead Phase of Delayed In-Phase Transfer 12 Lead Time of DIP Ms 1150 70 Lead Time of Delayed In-Phase Transfer

13 ResVol Tran Vol Amp

2060 25 Residual-voltage

Transfer Voltage Amplitude

14 UV Init Vol Amp. 2090 40 Under-voltage Initiating Voltage Amplitude 15 UV Init Delay s 0.105.00 1.00 Under-voltage Initiating Delay


36

16 SSUV Vol Amp

5090 80 Standby-Source

Under-voltage Voltage Amplitude

17 SSUV Delay ms 200-500 200 Standby-Source Under-voltage Delay 18 1st Loadshed Vol 2080 60 1

st Loadshedding Voltage

19 2nd Loadshed Vol 2080 60 2nd Loadshedding

Voltage 20 1st Loadshed Delay s 0.020.0 0.5 1

st Loadshedding Delay

21 2nd Loadshed Delay s 0.020.0 9.0 2nd Loadshedding Delay

22 Comp Delta Phase 1 D 0/30.0/60.0/

90.0/120.0

0 Compensation Delta Phase Angle1

23 Comp Delta Phase 2 D 0/30.0/60.0/

90.0/120.0

0 Compensation Delta Phase Angle2

24 Under-current Value A 0.50-2.00 0.50

25 Fixed Time Delay s 0.5-10.0 9.0 Fixed Time Transfer Delay

26 SCB Non-Vol Limit 0-60 60 Voltage Limit of

Single-Circuit-Breaker Non-voltage Close

27 SCB SynClose DelPha D 0.5-60.0 30.0 Delta Phase of

Single-Circuit-Breaker Synchronization Close

28 SCB SynClose DelVol 0-20 20 Delta Voltage of


29 SCB SynClose DelFreq Hz 0.1-2.0 1.5 Delta Freqency of


Note: D(Unit)=Degree

4.2 Controls

Item Name Range Default Full Name

1 Control Mode RemoteLocal Remote

2 Relay Init Tran Mode SeqSim Seq Relay Initiated Transfer Mode 3 UV Init Tran Mode SeqSim Seq Under-voltage Initiated Transfer Mode

4 Local ManTran Mode Auto ParSAuto Par

Seq Sim. Auto Par

Local Manual Transfer Mode


37

5 Remote ParTran Mode AutoSemi-auto Auto Remote Parallel TransferMode 6 Remote Tran Group Par Seq Par Sim Par Seq Remote Transfer Group

7 UV Init Enable, Disable Enable Under-voltage Initiating

8 Fast Tran Enable, Disable Enable Fast Transfer

9 DIP Lead Phase Tran Enable, Disable Disable Lead Phase Transfer (Delayed In-Phase) 10 DIP Lead Time Tran Enable, Disable Enable Lead Time Transfer (Delayed In-Phase) 11 ResVol Tran Enable, Disable Enable Residual-voltage Transfer 12 1st Loadshed Enable, Disable Disable 1

st load shedding

13 2nd Loadshed Enable, Disable Disable 2nd load shedding

14 SSUVB Enable, Disable Enable Standby-Source Under-voltage Blocking15 Transfer Enable, Disable Enable

16 SCBO Enable, Disable Disable Single-Circuit-Breaker Operation 17 Under-current CRTA Enable, Disable Disable Under-current Criteria

18 Fixed Time Tran Enable, Disable Disable Fixed Time Transfer

19 SCB Non-Vol Close Enable, Disable Disable Single-Circuit-Breaker

Non-voltage Close Operation

20 SCB SynClose Enable, Disable Disable Single-Circuit-Breaker Synchronization Close

Operation

Note:

Seq=Seqential

Sim=Simultaneous

Par=Parallel

SAuto=Semi-auto

4.3 Description

Running ModeThere are three setpoints, namely mode 1, mode 2 and mode 3.

ParTran Delta Vol, ParTran Delta Freq, ParTran Delta Phase and ParTran Trip DelayParTran

means Manual Parallel Transfer, the transfer method of which must be Fast Transfer. When

the voltage difference, frequency difference and phase difference between work power and

standby power are lower than their separate setpoints, the device will issue command to close


38

the standby(work) breaker, and after the ParTran Trip Delay time, it will trip the

work(standby) breaker.

SimTran Close DelayUnder simultaneous transfer mode, after the Trip command is issued,

the close command will be sent after this time delay.

Standby Close DelayAfter the command to close the standby high-voltage side breaker is

issued, the command to close the standby Low-voltage side breaker will be issued after this

delayed time.

FastTran Delta Freq and Delta PhaseUnder fast transfer, if the frequency difference and

phase difference between work power and standby power are lower than the two setpoints, the

device will issue Close command. These setpoints are decided by the residual voltage

characteristic and standby breaker closing performance. If users want a high transfer success

rate, the setpoints could be set larger. If users need a high motor security, then the setpoint

should be smaller.

DIP Tran Delta Freq: This is the prerequisite of Lead Phase Transfer. Default is 5HZ.

Lead Phase of DIPIf the frequency difference is lower than the setting DIP Tran Delta

Freq, and the phase angle difference is within this range, the device will issue closing

command. This setting is decided by the residual voltage characteristic and standby breaker

closing performance.

Lead Time of DIPIt depends on the total closing delay of standby breaker.

ResVol Tran Vol AmpUnder residual voltage transfer, if the bus voltage is lower than this

setpoint, the device will issue Close command. Default value is 25.

UV Init Vol Amp and UV Init Delay When the bus voltage is lower than the setpoint and the

duration exceeds the time delay, Under-voltage Initiated Transfer could be implemented.

Default values are 40 and 1s respectively.

SSUV Vol Amp and Delay When the standby source voltage is lower than the set amplitude

and duration exceeds the delayed time, at the same time, the setting SSUVB is enabled, the

device will block the transfer function. The default value is 80and 200ms separately.

1st Loadshed Vol and Delay, 2nd Loadshed Vol and Delay: Whether motors can be started up

successfully after the transfer, is mainly decided by standby transformer capacity, bus voltage

and the amount and capacity of all motors that will self-start. It is helpful to cut off some


39

insignificant motors in order to maintain the continuity of important load. Default values are

60%0.5s609.0s respectively

Comp Delta Phase 1To compensate the phase difference between standby voltage and bus

voltage. Default value is 0. For example, supposed bus voltage and standby voltage are in

phase, if UAN is adopted as standby voltage and bus voltage, then the initial phase angle is

0if UAN and UAB are adopted, the phase angle is -30; while if they are UAC and UAB,

then the phase angle is -60.

Comp Delta Phase 2To compensate the phase difference between work voltage and bus

voltage. Default value is 0.

Under-current ValueIn Auto-trip Initiate logic, if setting Under-current CRTA is set as

Enable, the work breaker is tripped as well as the work branch current is smaller than this

setpoint, the device enters Auto-trip logic. Default value is 0.5A

Fixed Time DelayWhen Fixed Time Transfer is initiated, after this delay time, the device

will issue a Close command without voltage difference, current difference and phase

difference analysis. The default value is 9s.

SCB Non-Vol LimitUnder single-circuit-breaker-close operation, any side voltage of the

breaker is smaller than this setpoint, Non-voltage Close operation is met. The default value is

60.

SCB SynClose Delpha, SCB SynClose DelVol, SCB SynClose DelFreq Under

single-circuit-breaker synchronization close operation, if the phase difference, voltage

difference and frequency difference are smaller than these setpoints, Synchronization Close

operation is satisfied. The default values are 3020and 1.5Hz.

Control ModeWhen it is set as Remote, users can implement operations in console or DCS

system, and the local operations are prohibited. Vice versa. The default value is Remote.

Relay Init Tran ModeThis control word decides the transfer method initiated by external

protection. Default value is Seq.

UV Init Tran ModeThis control word decides the transfer mode initiated by Under-voltage.

Default value is Seq.

Local ManTran modeThis control word decides the local manual transfer mode. The default

value is Auto Par.


40

Remote ParTran ModeThis control word decides the remote manual parallel transfer mode

Auto or Semi-auto. Default value is Auto.

Remote Tran GroupWhen the control word is parallel /sequential, the remote manual transfer

can only be parallel or sequential transfer. When the control word is parallel /simultaneous,

the remote manual transfer can only be parallel or simultaneous transfer. Default value is Par

Seq.

UV InitThis word will decide whether the under-voltage initiated transfer is enabled. Default

value is Enable.

Fast TransferThis word will decide whether Fast Transfer is enabled. Default value is

Enable.

DIP Lead Phase TranIt will decide whether this kind of transfer is enabled, and the default

value is Disable.

DIP Lead Time TranIt will decide whether this kind of transfer is enabled, and the default

value is Enable.

ResVol TranIt will decide whether this kind of transfer is enabled, and the default value is

Enable.

1st Loadshed, 2nd LoadshedIt will decide whether this function is enabled, the default value is

Disable.

SSUVB: when this word is adopted, if the Standby-Source-Under-Votage blocking conditions

are met, the device will block the transfer function. On the occasion that standby VT is out of

service for maintenance, the word should be disabled temporarily. In this case, even the

blocking conditions are met, the device can still implement transfer operation. When the

standby source is under-voltage without blocking, only Residual Voltage transfer and Fixed

Time transfer can be adopted. The default value is Enable

TransferWhen it is set as Disable, the transfer function is blocked. The default value is

Enable.

SCBOWhen it is set as Disable, the function of Single-Circuit-Breaker operation is

blocked, the default value is Disable.

Under-current CRTAUnder-current Criteria is used to decide whether the judgement of

work branch current is needed in Auto-trip Initiated logic. If it is set as Disable, when work

breaker trips, Auto-trip Initiated transfer will be implemented. If it is set as Enable, work

breaker trips as well as the work branch current is smaller than the setting Under-current


41

Value, then transfer initiated. Otherwise, transfer can not be initiated even the work breaker

is tripped and the device enters into the status of work fake open.

Fixed Time TranIt will decide whether this kind of transfer is enabled, the default value is

Disable.

SCB Non-Vol CloseThis setpoint will decide whether Non-voltage Close is permitted. The

default value is Disable.

SCB SynCloseThis setpoint will decide whether this Close method is permitted. The default

value is Disable.


42

5. Running and Checking Illustration

5.1 LED Indicators and DCS Signals

The LED indicators will not be illuminated when the whole power plant system and the device work

well. Illuminated indicator shows fault status and operators should solve the problem accordingly. After

that, press the button Reset to reset LED indicators.

PWROff: check devices DC power source voltage, including the fuse of power supply incoming

wire and the status of air switch and power switch etc,. If all the above work well, operators

should check the small panel indicators (+5V+15V-15V and +24V) to find out the fault circuit.

If the device cannot work because of itself defectiveness, please contact us immediately

TrBlock: this is a general signal which means the device is in lockout/blocking status because of

some reasons. According to the LED indicators or device interface of StateRPT, operator can

find out the blocking reason. Please see 3.2.3.

5.2 Panel Checking

When the device works normally, only one of the panel indicators WORK or STANDBY

will be illuminated; RUN indicator flashes slowly; REMOTE indicator is on and ACT

and TRBLOCK indicators are off.

Measurement displayThe displayed voltage, current, frequency value and so on should be

consistent with the real status.

Setting: All settings should be consistent with the values shown in setting submenu.

Abnormal eventNo abnormal event occurs.

State reportThere should be no abnormal report.

Status barThe clock should work correctly, running mode is consistent with the setpoint and

there should be no lockout icon.


43

6. On-site Testing and Commissioning

6.1 Preparation

6.1.1 External Examination and Cleanness

Check whether cabinet terminal crews are fixed tightly and fuses are complete.

Check whether air switch crews are fixed tightly.

Check whether backboard modules are inserted tightly

Check whether backboard terminals are plugged in tightly.

6.1.2 Power Source Checkout

Disconnect the output press plate.

Turn on the power switch to monitor the +5V15V and +24V powers.

Monitor the panel display

6.1.3 Settings

Set as the requirement in section 4.

Press Reset button to check again whether the settings are set correctly.

6.2 Static Debug Test

Preparation Turn off the power switch.

Connect the debugger to the device.

6.2.1 Analog Measurement Circuit

Regulate voltage inputs to see whether the voltage, current, frequency and phase etc, are

displayed normally.


44

If amplitude adjustment is needed, 3.2.7 precision regulation is the principle.

6.2.2 External Digital Input Circuit

Enter DI Debug interface to see each digital input quantity.

RLYInit. Press the button RLYInit in the debugger manually. If possible, operators can

directly simulate the action of generator-transformer protection and see the result.

RLYBlock. Press the button RLYBlock in the debugger. If possible, operators can directly

simulate the action of branch over-current protection or bus differential protection and see the

result.

ManInit. Press the button ManInit in the debugger. If possible, operate the transfer switch in

console or DCS control terminal directly.

ManMode. Press the button in the debugger. If possible, operate the transfer mode selection

switch in console or DCS control terminal directly.

WorkCB/StbCB . Operate the work/standby circuit breaker to see the result.

VTIS. Press the VT isolating switch button in the debugger, if possible, open/close VT

isolating switch in bus directly.

Reset. Press the reset button in the debugger; if possible, operate the reset button in console or

DCS control terminal.

TranExit. Press the button in debugger to enable/disable the transfer function; if possible,

operate in console or DCS control terminal directly.

6.2.3 Trip/Close Output

Choose one or more transfer mode to check whether the breaker in debugger works well.

TripWork CloseStb-H CloseStb-L

CloseWork TripStb

Other outputs


45

6.2.4 Signal Output

Simulate relevant situations to monitor the work of central control signal indicators and DCS signal

indicators. If possible, check LED indicators directly.

Success Fail TrBlock

TrExit PWROff BSS

SSUVB VTFL Fault

AAP LC/RT PSCBO

Par Seq/ Par Sim

6.2.5 Print

Simulate an accident transfer

Monitor panel indicators, outputs and signals.

Print and check the action report.

6.2.6 Completion Plug out the debugger and recover all terminal connection.

6.3 Unload Transmission Test

Preparation

Turn off the power switch.

Connect work and standby breakers.

Supply simulated AC voltage.

Connect output press plate.

Turn on the power switch

Confirm that the device is ready ( without lockout/blocking signals)

Confirm all settings are correct.


46

6.3.1 Normal Transfer

Choose auto parallel transfer mode as an example.

Conduct the transfer operation in console or DCS terminal directly

Monitor LED indicators and panel status indicators

Print SOE records and save the print results.

Implement the transfer from work source to standby source and from standby to work at least

one time separately.

If necessary, modify setpoints.

6.3.2 Accident Transfer

Sequential transfer mode, for example

Simulate relay operation to initiate transfer in generator-transformer cabinet.



If necessaryamend setpoints.

6.3.3 Other Tests

Conduct some tests according to the on-site situation and clients request, such as Auto trip, VT fuss

loss, Relay blocking etc.

6.4 Load Transmission Test

Preparation

Confirm that the device is ready( without lockout and alarm indication)

Confirm that all indicators in panel work well.

Confirm all settings are correct.


47

6.4.1 Normal Transfer

Choose auto parallel transfer mode as an example.

Conduct the transfer in console or DCS terminal directly

Check the status of related devices during the transfer process.



Implement the transfer from work source to standby source and from standby to work at least

one time separately.

If necessary, amend setpoints.

6.4.2 Accident Transfer

Sequential transfer mode, for example

Simulate relay operation to initiate a transfer in generator-transformer cabinet.

Check the status of related devices during the transfer process.



If necessaryamend setpoints.

6.4.3 Other Tests

According to the on-site situation and clients request, other tests can be conducted.


48

7. Report

7.1 Mark in the above when the test item is finished.

7.2 Reports preparation

Appendix 1 Report about the discovered problems, solutions and relevant results.

Appendix 2 Report about the unsolved problems in detailed explanation

Appendix 3 Parameter print record

Appendix 4 Records about Unload Transmission Test

Appendix 5 Records about Load Transmission Test

7.3 Others

Client Generator Unit # segment #

Client representative Telephone

Date : Test person


49

8. Appendix For the reason of screen size, we adopt abbreviation in some interface. The contrast table is as flowing:

Abbreviation Full Name

Tran Transfer

ManTran Manual Transfer

SysInfo System Information

InitTime Initiated Time

InitMeth Initiated Method

TranDire Transfer Direction

TranMeth TranMethod

Stb Standby

BLK block

RLY Relay

PSW Password

BSS Breakers Same Status

TP Trip

CL Close

TWC Trip Work Command

TSC Trip Standby Command

LimitT Limit Time

RVFT Residual-voltage Transfer and Fixed Time Transfer

Cond Condition

ResVol Residual-voltage

LoadShed Load Shedding

Int Internal

Ext External

Dis Disable

Mod Modify

AbnEvent Abnormal Event

RPT Report

RTID Time Remove DI Ditherding Time

AAP After Accelerated Protection


50

Comm Communication

DefScrn Default Screen

Dev Device

DISP Display

PRNT Print

STAI Statistic

STAE State

CANL Cancel

RPT Report

SETT Setting

PREC Precision

WIRI Wiring

PHAS Phase

RCOD Record

VALU Value

PLU1 Plus 1

RDU1 Reduce 1

WATH Watch

CNFM Confirm

EXEC Execute

ADVS FUNC Advanced Function

Documents

1 MFC2000-3A High-speed Bus Power Transfer System Users'Manual