g.e relay

• GEDigital Energy

UR Platform

ANNEXA

• GEDigital Energy

LIST OF CONTENTS

AnnexA

•Maintenance Staff: (Continued from day 2)

GEDigital Energy

• Oscillography and Events Log Lab• Saving/loading setting files• Labs to prepare the flex logics based on the following protections

• Instantaneous overcurrent• Timed overcurrent• Under Voltage

• Maintenance procedure• Firmware upgrades• Adding and removing modules

• Diagnostic messages and troubleshooting procedure

Who should attend?Plant electrical operational and maintenance personnel who are responsible for the installation. testing and maintenance ofGE Multilin protection relays and integrated system will benefit most from this course,

We recommend not to induce new participants during mointenance stoff training to keep the harmony and peace of thetraining agenda.

PrerequisitesBasic understanding of electrical circuitsKnowledge of Microsoft Windows~ an asset

•• Commands

• Clear records• Set date and time

• Actual Values• Front panel• Status• Metering

• Hands-On group Lab

DAY 2 - UR Platform

GEDigital Energy

Operation Staff: (New Staff - Repeated Coursel

• System overview• Options & ordering• EnerVista setup software

• Interface. device and site creation• Local Human Machine Interface• Targets• Actual Values

Maintenance Staff: (Continued from day 11

• Introduction to Flexlogic• Gates• Positive & negative edge triggered one-Shot

• Setting groups• Digital Elements• Timers• Counters• Flex Elements

DAY 3 - UR Platform

Operation Staff: (New Staff - Repeated Coursel


• Interface, device and site creation• Local Human Machine Interface• Targets• Actual Values

•-TRAINING PART 1-

DAY 1 - UR Platform

Operation Staff:


• Interface, device and site creation• Local Human Machine Interface• Targets• Actual Values

Maintenance Staff:

• System overview• UR hardware overview

• Block diagram• UR family members• Hardware configurations• Specifications• Voltage & current supervisory

• Mechanical installation &wiring• Trip &Close circuit voltage and current monitoring• Options &ordering

• EnerVista setup software• Interface, device and site creation

• Settings• Product Setup

• Security and displays• Overview of communications• Real Time Clock• Oscillography setup• User programmable LED

• System Setup• AC inputs• Power system• Signal sources configurations

• Inputs/Outputs• Contact inputs• Contact outputs• Virtual inputs

GEDigital Energy

'4.", <C,.- -

•Copyright © 2008 GE Multilin

GEDigital Energy

All Rights Reserved. No part of this book, including content, lab exercises, calculations, interiordesign, cover design and icons may be reproduced or transmitted in any form, by any means(electronic, photocopying, recording, or otherwise) without the prior written consent of GE Multilin.

GE Multilin215 Anderson AveMarkham,Ontario, CanadaL6E 183905-201-2098 (x2152)

For general information concerning GE Multilin and its products, training or consulting programs,please visit our website at www.GEMultilin.com or contact us at:

US and CanadaInternationalFax

800-547-8629905-294-6222905-201-2098

No patent liability is assumed with respect to the use of the information contained herein.Moreover, because GE Multilin is constantly striving to improve its high quality products, theinformation contained in this manual is subject to change without notice. Every precaution hasbeen taken in the preparation of this manual. Nevertheless, GE Multilin assumes no responsibilityfor errors or omissions. Neither is any liability assumed for damages resulting from the use of theinformation contained in this publication.

Screen shots in this book are based on current software, released at the time this book waspublished. These screen shots are subject to change without notice as new revisions of softwareare released.

•Digital EnergyMultilin

Table of Contents

Introduction

Hardware Overview

UR Setup Software Installation

Communications Configuration

FlexLogic Basic Operands

Timers

Counters

Oscillography and Event log

Current and Voltage Protection Elements

Setting File Management

Copyright 2008 GE Multilin 3


THE UNIVERSAL RELAV

Introduction

Historically substations were designed with protection. control and meteringfunctions performed by electromechanical equipment. This first generation ofequipment was in time replaced in various degrees by analog electronic equipment.most of which emulated the single function approach required in theelectromechanical precursors. Both of these technologies require a lot of expensivecabling and auxiliary equipment to produce functioning systems.

Recently digital electronic equipment has been applied to the purposes outlinedabove. Initially this equipment was either single function or had very limited multifunction capability, and did not significantly reduce the amount of cabling andauxiliary equipment required. Recent digital relays have become quite multifunctional, reducing cabling and auxiliaries even more. These devices also transferdata to central control facilities and Human Machine Interfaces, using electroniccommunications. The functions performed by these products have become so broadthat many users now prefer the term lED (Intelligent Electronic Devicel.

It is obvious to station designers that the amount of cabling and auxiliary equipmentinstalled in stations can be even further reduced. to 20% to 70% of the levelscommon in 1990, to achieve large cost reductions. This requires placing even morefunctions in the IEDs.

Users of power equipment are also interested in reducing cost by improving powerquality and personnel productivity, and as always, in increasing system reliability andefficiency. These objectives are realized through software which is used to performfunctions at both the station and supervisory levels. The use of these systems isgrowing rapidly.



High speed communications are required to meet the data transfer rates requiredby the automatic control and monitoring systems of today. In the near future, veryhigh speed communications will be required to perform protection signaling - aperformance target response time for a command signal between two IEDs fromtransmission to reception of less than 5 milliseconds has been established by theElectric Power Research Institute, a collective body of many American and Canadianpower utilities. in their Utilities Communications Architecture 2 (MMS/UCA2) project.In late 1998 some European utilities began to show an interest in this ongoinginitiative.

IEDs with the capabilities outlined will also provide a lot more data on the powersystem than is presently available. enhancing operations and maintenance, andpermitting the use of adaptive system configuration for protection and controlsystems. This· new generation of equipment must also be easily incorporated intoautomation systems at both the station and enterprise levels. The Universal Relay(UR) has been developed to meet these goals.



The UR Family.

The Universal Relay is a family of protection relays that is based on a common platform forall of your protection needs.

This picture shows a family of different UR devices.

These devices provide common hardware packaging, faceplate panels. function modules.and firmware programs.

Each different UR device is distinguished by user-defined faceplate LED panels, specializedfunction modules, and device-specific firmware programs.

This family of devices is supported by a common graphical user interface, known as the URSetup software interface.

Copyright 2008 GE Multilin 6 Product Line - 2

•

• Digital Energy~ Multilin

UR Ae..Plication DomainsTRANSMISSION

-L60 (Transmission Line: Phase Comparison)-L90 (Transmission Line: Current Differential)-060 (Transmission Line: Distance)-030 (Transmission Line: Distance Back~p)

-B30 (Busbar: Basic 6 Feeders)----_._.-._.-._._._._._._._._._._.-._.DISTRIBUTION

-F35 (Feeder: Multiple Feeders - Basic Protection)-F60 (Feeder: Comprehensive with Hi-Z)-T60 (Transformer: Comprehensive)-T35 (Transformer: Basic 6 Winding)-C30 (ControllED)-C60 (Breaker Management lED)-B90 (Busbar: Comprehensive up to 24 Feeders)-C90 (Capacitor Protection System)

_._._._._._.-._.-.-._._._._.-._._.-._.GENERATION

-G60 (Generator: Comprehensive> 100MVA)-G30 (Generator Management Relay))-M60 (Motor)

_._._._._._._._._.-._._._._._._._._._.SYSTEMS SOFTWARE

-EnerVista UR Setup Program-EnerVista Viewpoint MonitoringeEnerVista Viewpoint EngineereEnerVista Maintenance



UR Basic Features:• Microprocessor-based relay designed for power substation control

ana monitoring, using a 'platfGrm' approach.

• Functional modules on draw-out cards.

• Internal clock used for time-tagging can be synchronized with anIRIG-B signal.

• Events can also be programmed to trigger Oscillography datacapture which may be set to record parameters before and after theevent for viewing on a Pc.

• Faceplate RS232 port may be used for programming settings and formonitoring actual values via a Pc.

• Up to 2 rear RS485 ports to allow independent access via Modbus®RTU protocol with baud rates up to 115 kbps.

• Optional communications modules include:

• 10BaseF Ethernet interface which can be used to provide fast,reliable communications in noisy environments.

• Optional two 10BaseF fiber optic ports for redundancy.

• Flash memory technology allowing field upgrading of features.


•

, Digital Energy. ~ Multilin

UR -- Miodule Based Ploitform• Drow-out modules far serviceooiHty., Expandable lnputs and Outputs.• Field upgradeable

Mod~I·;'5have specific functions and fit into one ofthe eroYl categ:ories

., Power Supply Module (B;tf-iag ·ttL po Wlif Jo fka. ~a.vs)

: ~~~~I~odUIe ( Db\~,J S;~J ?r~(coss"",) ( :l i 1H''1'l h:Pf;~)• Digital va Module• Transducer 1/0 Modul,e• toter-Relay' Communicoitians Modul:a C'z. t<d~~ CO(f1~t.l(tic«::H~ e..J;fL

+ko~ku€) ex. L4 0


•

, Digital Energy"l Multilin

MiOtJnting."rrang~n1'E!rt~

The UR is available in both a Horizontal and Vertical platform. These two platformsdiffer in size and the number of expandable modules that are available but performall of the same protection and control functions

Horizontal Mount

D 19 inches by 7 inches

D 6 Expansion SlotstfYl oolwl~s)

G

Vertical Mount

D % size of Horizontal

D 4 Expansion Slots



UR Block Diagram

Input~ CPU Module - Output

Elements Elements

LAN

The UR Relay Block Diagram:

The UR operates by measuring the status of many different Inputs, making logicalcalculations based on those inputs. then settings outputs to perform real worldfunctions.

Input elements accept a variety of analog or digital signals from the field. isolateand convert the signals into logic signals which can be used by the relay.

The CPU module contains firmware which provides protection elements in the formof logic algorithms. and programmable logic gates for control features.

Output elements convert and isolate the logic signals generated by the relay. intodigital or analog signals that can be used to control field devices.

Copyright 2008 GE Multilin 11 Fundamental - 1

•

, Digital Energy"I, Multilin

UR Block Diagram

CPU ModuleInput Elements Output Elements...-------------.Protective Elements

~PiCkUP

~ Dropout~ t> Operate

3Logic Gates

,---.:_1 IIII__________..J

LAN

INPUTS: The contact inputs are used to detect the status of switches or contacts thatare located outside of the relay. Both 'wet' and 'dry inputs are supported. The VirtualInputs are software controlled switches that are turned ON and OFF throughcommunication commands and can be used to control the UR from remote locations. TheAnalog Inputs are input signals that are associated with transducers such as ResistiveTemperature Detectors IRTDs) and DCmA inputs that vary through a predetermined range10-lmA, 0-20 mA, .. .1. CT and VT inputs refer to analog current transformer and voltage(potentia II transformer signals used to monitor AC power lines.

The Remote Inputs and Direct Inputs are used for peer-to-peer communicationsbetween different Universal Relays that are connected to a central network.

OUTPUTS: The Contact Outputs are physical hardware switches that change stateand are used for controlling and signaling outside devices such as breakers. The VirtualOutputs are used to store the result of Flexlogic equations that are used to customize thefunctionality of the Relay.

The Analog Outputs are output signals that are associated with transducers currentoutputs that vary through a predetermined range (O-lmA, 0-20 mA, ...l. The RemoteOutputs and Direct Outputs are used for peer-to-peer communications betweendifferent Universal Relays that are connected to a communication network.


•


UR Scan Operation

The Universal Relay has a cyclic scan.

1. The UR reads the inputs into an input status table.

2. solves the logic program IFlexLogic™ equation).

Protective Elements,...._.. PKP

......... OPOOP

3. and then sets each output to the appropriate state in the output status table

This Scan occurs every 2 milliseconds.~


•'t Digital Energy~ Multilin

UR Modular ConceQ!

The Universal Relay Family is built on a common modular hardware 'platform' andis configured from the following types of functional modules:

• Power Supply

• CPU

• CTNT DSP

• Digital I/O modules

• Analog (Transducer) I/O

• Inter-Relay Communications modules.

These modules are interconnected via a high speed data bus.

The faceplate (HMI) module includes two user-definable LED panels and anoptional two panels for user-definable pushbuttons.


--_......._-------------------

e• Digital Energy~ Multilin

Inter-Module Communications

High-Speed Data Bus

Multiple buses allow for high-performance:- protection and communications without bottlenecks.

The UR back plain consists of three high speed buses which are:

• the high-speed parallel data bus allowing the CPU to communicate with the I/Omodules.

• the high-speed serial communications bus which data communications.

• and the high-speed inter-processor serial data bus allows the DSP's or Digital SignalProcessors a separate bus with which to communicate to the CPU.


•


UR FaceplateThere are TWO types of faceplate interfaces available:

C9 EnJ1anced Face"plate Lf ~ b "1~ S!.andard Faceplate \ 1-

Enhanced Faceplate:~mn 1~as a predefined function for each LED available.

(£olumn 2 - 5 @consist of ~8 LED's of which function can be defined by the user.

The Display is used to show Target messages qnd for changing settings.

The Keypad is used for changing the messages shown on the display and for makingsettings changes.

There can be 16 optional buttons who's functions can be defined by the user.

The faceplate is hinged to allow easy access to the removable modules.

Standard Faceplate:LED Panel 1 has a predefined function for each button and LED available.

LED Panel 2 & 3 consist of 48 LED's who's function can be defined by the user.

The Display is used to show Target messages and for changing settings.

The Keypad is used for changing the messages shown on the display and for makingsettings changes.

Button Panel 1 & 2consists of 12 buttons who's functions can be defined by the user.

The faceplate is hinged to allow easy access to the removable modules

Copyright 2008 GE Multilin 16 Front Panel - 1

•

, Digital Energy"t Multilin

Enhanced Faceplate

Fivecolum n LED indicator panelI

IU$er-prograrnmQblepushbuttons 1to 16

Standard Faceplate

LEO panel 1

842810A1.CDR

}OisPlay

}t<eypad

} Front panelRS23Zport

Small user-programmable Y,lcontroO pushbuttons Ho 7

Copyright 2008 GE Multilin

IUser.pR)grammablepushbuttons 1 to 12

17

II

CJ<eYPod

•

, Digital Energy~ Multilin

Enhanced Faceplate

Standard Faceplate

STATUS

• IN SERVICE

• TROUBLE• TEST MODE

• TRIP

• AlARM• PICKUP

EVENT CAUSE

• VOLTAGE

• CURRENT

• FREQUENCY

• OTHER

• PHASEA

• PHASE B

• PHASEC

• NEUTRAL/GROUND

RESETD

USER 1 D

USER2D

USER3D

LED PANEL 1


e• Digital Energy .~ Multilin

Status Indicators Summary.

IN SERVICE

TROUBLE

TEST MODE

TRIP

ALARM

PICKUP

VOLTAGE

CURRENT

FREQUENCY

OTHER

PHASE A

PHASE B

PHASE C

NEUT/GROUND

Indicates that control power is applied; all monitored I/O and internalsystems are OK.

Indicates that the relay has detected an internal problem

Indicates that the relay is in test mode.

Indicates that an output selected to be a "TRIP" has operated.

Indicates that an output selected to be an "ALARM" has currentlyoperated.

Indicates that a protection element is picked up. This indicator isnever latched

Indicates voltage was involved in the fault.

Indicates current was involved in the fault.

Indicates frequency was involved in the fault.

Indicates a composite function was involved in the fault.

Indicates phase A was involved in the fault.

Indicates phase B was involved in the fault.

Indicates phase C was involved in the fault.

Indicates neutral or ground was involved in the fault.

Copyright 2008 GE Multilin 19 Front Panel - LED 1

•


Customized LED Panel Installation

1-Remove the clear LEXAN FRONT COVER(P/N:1502.Q014)

2·Pop out LED MODULE and/or BLANK MOJ...Ewithascrewdriver as the picture shows.(Be careful not to damage the plastic)

\~\lI

3·First place ·the left side of the customized module backto the front panel frame, then snap back the right side.

4·Put the clear LOON FRONT PANEL back toils place.

CUSTOM LABELING OF LED's

The figure above shows how to install/un-install the custom panel labeling.

Copyright 2008 GE Multilin 21 Front Panel - LED 5


-_.., - ,

--

Display & Keypad

tI1 •••_MESSAGE••••

liJ •••• VALUE••••

....

The Display and Keypad are used together to check Target messages, changesettings and monitor Actual Values

The Liquid Crystal Display uses a 2 line by 20 character display that can easily beenseen a variety of lighting environments.

The key pad buttons have the following functions:

The (MENU] key is usedto navigate through the main menu headings. These headingsprovide access to functional subgroup menus.

The MESSAGE [<] [>] [v] [A] keys are used to navigate through the subgroup menus.

The VALUE [v] [A] keys are used to scroll through variables in the settingsprogramming mode to increment or decrement numerical setting values.

The [.] key is used to initiate and advance to the next character in text edit mode orto enter a decimal point.

The (HELP] key may be pressed at any time for context sensitive help messages.

The [ENTER] key is used to store values.

The Number keys can be used to make numerical setting changes.

Copyright 2008 GE Multilin 22 Front Panel - Display


LAB #1: Keypad Exercise

In this exercise, you will use the keypad and display to change the CT ratio in the relay.

Display messages are organized into menus under the main headings:

ACTUAL VALUES, SETIINGS, COMMANDS, and TARGETS.

III Press the Menu button several times and see the message on the Display scroll through theabove main headings

Each main heading has several sub-menus found within it that are organized in a hierarchal tree structure asseen in the example below.

SETTINGS

t PRODUCT SETUP

t SYSTEM SETUP

.. -ACINPUTS

.. -CURRENT

.. - PHASE CT PRIMARV: 1

The Message buttons are then used to scroll through these sub menus.

It MessageRight

MessageLeft

MessageUp

MessageDown

III Press the Menu button until the display shows: SETTINGS: PRODUCT SETUP

The setting we need is found in the System Setup sub menu. Since the System Setup menu is belowthe Product Setup Menu as shown above:

" Press the Message Down button to get to the System Setup menu

The sub-menus within the System Setup menu are found to the Right as shown in the menu tree structureabove:

D Press the Message Right button to access the AC Inputs Menu

Copyright 2008 GE MUltilin 23 Front Panel - Keypad

-----------------------


"TheCurrent Settings Sub-menu is found to the right of the AC Inputs Menu as seen in the Menu Tree.

D Press the MESSAGE RIGHT button to access the Current Settings menu.

D Press the MESSAGE RIGHT button one more time to access the CT Primary Ration Setting.

The default setting for the CT Primary Ratio that is currently in your relay is 1. This value can be changed bypressing the Value Up and Value Down button.

II Press the VALUE UP button once and watch the CT Primary Ratio Value change to 2

.. Press the ENTER button to store this setting change into the relay.

The CT Primary Ratio setting can also be changed by typing in a number on the numeric keypad..... Press the number "1" button followed by the "o"button. The setting valuewill change to read 10

..

..If the value that was entered is not the number that is desired to be saved into the relay,pressing the ESCAPE button will clear the value that was previously entered and stored.

Pressing the HELP button at any time will give you information about the setting that iscurrently displayed. For example: the range of valid settings that can be entered.

Copyright 2008 GE Multilin 24 ., FrOnt Panel - Keypad - Navigation

•


Horizontal Case Capacity.This is the maximum amount of each type of hardware available. Note that if othertypes of modules are added. the number of each inputs available are decreased

CT/VT (I & V) Inputs .................~ 24 (max)up to 3 modules 8/module

Status (Binary) Inputs ....•...........~ 96 (max)up to 6 modules 16/module

Control (Contact) Outputs .....•.•....~ 48 (max)up to 6 modules 8/module

Analog (Transducer) I/O .........•.•.•..~ 48 (max)up to 6 modules 8/module

This is the front view of a horizontal UR device with the faceplate removed.

Copyright 2008 GE Multilin 25 Module - Rack - Front View


Vertical Case Capacity.This is the maximum amount of each type of hardware available. Note that if othertypes of modules are added. the number of each inputs available are decreased

CT/VT (I &V) Inputsup to 3 modules

.................~ 24 (max)

a/module

Status (Binary) Inputsup to 4 modules

................~ 64 (max)

16/module

Control (Contact) Outputs ..... ... ....• 32 (max)up to 4 modules a/module

Analog (Transducer) I/O .............•up to 4 modules

32 (max)a/module

Copyright 2008 GE Multilin Module - Vert

e• Digit?1 Energy. ~ Multlhn

UR Module InsertionProcedure for installing a module:

Step 1: Turn of the power being supplied to the relay.

Step 2: Lift the sliding latch on the right side of the faceplate andpull the door towards you to gain access to the modules.

Step 3: Align the green PCB boards on the module with the slotguide in the chassis.

Step 4: With your thumb. press on the middle of the module untilthe ejector/inserter clip begin to close on their own.

Step 5: Using two hands press both clips towards the module at thesame time until you feel the module "POP" into place. NOTEthat DSP modules will require large amounts of force toinsert them properly.

There are white key codes found on the module and in thechassis on the terminal block that prevent the modulefrom being inserted into the wrong slot.


•


PowerSu~ Module

V

LOW RANGE (.pc 1</ - \(8) HIGH RANGE

V(pc 12~'" 2S0 )

Nominal DC Voltage: 24 - 48 @ 3A

Min.lMax. DC Voltage: 20/60

Nominal DC Voltage: 125 - 250 @ 0.7 A

Min.lMax. DC Voltage: 88 / 300

Nominal AC Voltage: 100 - 240 @ 50/ 60 Hz, 0.7 A

Min.lMax. AC Voltage: 88/ 265 @ 48 - 62 Hz

The power supply is equipped with a battery that is used to supply the UR with power to store EventRecords and Oscillography Records (waveform captures) and keep the Real Time Clock running in theevent that the power being supplied to the relay fails. This battery has a ten year life span. Note thatthe battery will not drain while power is being supplied to the relay.

Copyright 2008 GE Multilin 29 Module - P!S

Faceplate Port (19200 Baud Rate)

lor 2 Rear Ports (from 300 up to 115200 Baud Rate)

10BaseF or redundant 10BaseF

•


CPU Module

All communications with the outsideworld occurs through the CPU andcan be done through one of thefollowing methods.

~RS232:

~ RS485:(}) Ethernet port:

The CPU is FLASH Upgradeable which means that the firmware inside the relay canbe upgraded on site simply by communicating to the UR with your computer.

The CPU has an Input to allow for GPS time-stamping of events (lRIG-B) that operotes ineither Amplitude Modulation or DC shift mode.

IRIG-B Input: Amplitude Modulation: 1to 10 Vp-p. DC Shift: TIL

Copyright 2008 GE Multilin 30 Module - CPU - 1

•1~ Digital Energy~ Multilin

CT/VT DSP Module

The DSP orQigital Signal process~~is used to sample the raw current and voltagewaveforms and convert them into digital signals that can be used in calculationsmade by the CPU.

Each DSP has 8 input channels. The DSP comes in several different models thatallows for different combinations of voltage and current inputs. A common DSP willhave 4 current input channels for phase A B. C and Ground. and 4 voltage inputs forphase A. B. C and an auxiliary channel.

The DSP samples each waveform 64 times per power system cycle.

Copyright 2008 GE Multilin 31 Module - aNT DSP


Circuit MonitorThe Voltage Monitoring feature of the Form-A Contact Output is used to monitorthe integrity of the Breaker Trip Coil circuit. The Voltage Monitor checks to see if thecircuit used to energize the trip coil has a valid path for the current to flow. This isperformed by forcing a small amount of current (3mA) through the circuit andchecks to see if it is received back to that point.

DC+

H1c

H1b

JJR~~J~Y_:-J:g!:!'!.':~ I

: I

I H1aII

I =Current Monitor :I

V =Voltage Monitor iIIIL _

If it is required to monitor the trip circuit continuously, independent of the breakerposition (open or closed), a method to maintain the monitoring current flowthrough the trip circuit when the breaker is open can be achieved by connecting asuitable resistor across the auxiliary contact in the trip circuit (52a). The suitableresistor value to use can be found in the chart below.

-, r '.. . .. Resistance . .•. Power .....I \ Y ....] . • .. (Ohins) (Watts) •.

24 1000 2

30 5000 2

48 10000 2

110 25000 5

125 25000 5

250 50000 5

Copyright 2008 GE Multilin 34 Module - Digitoll/O - 5

•


Transducer I/O Module

Transducer 110: Are used to measure Analog inputs such as Resistance TemperatureDetectors (RTDs) or milli-Amp current inputs and converts them into digital signals thatcan be used by the CPU.

DCMA are current levels that are used a communication link between devices such asrelays and PLC's. The current level being sent from one device to another relates todifferent analog values such a current or voltage levels. The current input rangesavailable are (mAde): 0 to -1, 0 to +1, -1 to +1, 0 to 5.0 to 10.0 to 20.4 to 20.

RTDs are used to represent the temperature of various parts of a motor or agenerator. The varying resistive value input into the relay relates to the temperaturethat is being read.

The RTD input types available are 1000hm nickel. 100hm copper, 1000hm platinumand 120 ohm nickel and is selectable by the user.

Copyright 2008 GE Multilin 36 Module - Transducer - 1


Power SuQQ!y Wiring-------,

NOTE: IACorDC I 14 gouge stranded JiC or DC I

I

.~wire with suitable I--'---1---disconnect devices I I

Jis recommended. 00Heavy copper conductor

or braided wire , II I--_._- ------------------------+--,

------------------------, ,I

--- --- ----- I ,r------------------ ---------------------, I II I , I,I \ B8b B80 860 IB6bl B5b \ Wlalw2blw1b1,

~- I~I~~ i G"O I + II -,

-:II FilTER URGEI CONTROL OPTlONo\lI~ PCMlER ETHERJIET SWITCHI

Iear I UR-sertesbus I protee'tioh systemI • • I

V~ V

Switchgground

827759A9-CDR

IB1b

j CRITICAL II'"I B1a FAILURE82bB3a . 48VDCB3b + OUTPUTB5b HI+ CONTROLB6b LO+ POWERB6a .B8a I~ SURGEB8b l~ FILTER

The Power supply is always located in Slot B. therefore all terminal assignmentsbegin with the letter B.

The negative voltage input for the power supply is always located in terminal B6a.

There are separate voltage wiring inputs for the positive input of the high volt andlow volt power supplies. The positive input is connected to terminal BSb for thehigh volt power supply. and terminal B6b for the low volt power supply.

The Filter Ground and Serge Ground connections are made at terminals B8b andB8a respectively.

The Power Supply module has a 48 Volt output that can be used for 'wetting' ContactInputs. There is also a critical fail relay available that energizes when the relay is healthyand de-energizes when the relay detects a problem and drops out of protection.

Copyright 2008 GE Multilin 40 Wiring - 2- PIS - 1

•


CT/VT Module Wiring

t:I .c v t:I .c v 0 .c v .i .c JJ t:I V 0 V t:I V t:I U.-t .-t .,... N N N ,." ,." ,." ¢ I,ft I,ft ID ID ...... ...... ClO ClO

t t t t f t t f f t I l f l I f l I l l

• • • • • • • • • • • •. In~ ~

In $! .-4 In !:::! .... In £! ....~ ~ III III U U

~ ~~ !! !! !:::! ~ !=2 !:2 :> :> :> :>

I\JY."l V l\JY1\J v~

I\J V!\J V W W W WLJv-'-ly- -AvJy- -\ ~ rl .(1\. rl rl

CUrrent inputs Voltage inputs8F and8G modules 14 CTsand4VTs)

OSPW~ring:

The OSP is available with all 8 inputs being current inputs allowing for two sets ofcurrent circuits (lA, lB. IC, & IGround, lA, IB, IC, & IGroundl or 4 current inputs and 4Voltage inputs (lA, IB, IC, &IGround, VA, VB, VC, &VAuxl.

Voltage Wiring:

Each phase of voltage has it's own row on the terminal block for input wiring. PhaseA uses row 5, Phase Buses row 6. and phase C uses row 7. Row 8 is reserved for theauxiliary input that is normally used for Synchrocheck.

The negative terminal of each phase is connected to column Cfor that row. Thepositive lor polarity) terminal is connected to column Afor that row. Column Bis notused for voltage.

The wiring of VT's for both ABC rotation and ACB rotation are identical.

Current Wiring:

Each phase of current has it's own row on the terminal block for input wiring. On theexample above, Phase A uses row 1, Phase Buses row 2, and phase Cuses row 3and Ground current uses row 4.

The negativeterminallnon-polarityl of each phase is connected to column Bfor thatrow. The connection of the positive lpolarityl terminal depends on whether the CTbeing used has a lAmp or 5Amp secondary. If a lAmp secondary is used, theconnection should be made to column C of that row. If a 5Amp secondary is used,the connection should be made to column A of that row.

Copyright 2008 GE Multilin 41 Wiring - 5 - DSP - 1

•

, Digital Energy"I Multilin

Qigitall/O Module. WiringEach Digital I/O module has a different combination of Contact Inputs and ContactOutputs.

As shown in the diagram to the right, eachContact Output uses 1 entire row of terminals forwiring.

Each Contact Input uses only terminal screw forwiring each Input.

Contact inputs are arranged in groups of fouruses a single Common for each group of fourinputs.

This allows each group of four inputs to besupplied by a different wetting voltage and havea different Voltage Threshold level.

-6AMODULE

TERMINAL OUTPUT ORASSIGNMENT INPUT

-1 Form-A

-2 Fonn-A

-3 Form-C

-4 Form-C

-Sa,-Sc 2 Inputs

-ea,-6c 2 Inputs

-78,-7c 2 Inputs

-8a,-8e 2 Inputs

.. ,.~-'b Q

.. ,,,'c-211-2b =s= ... 2-21:... 311..3b n .. 3-3e

-

When wiring a Form-C or Fast Form-C contact output.column Bis always used for wiring. If the application callsfor a normally open contact, then column C is used for theother wire. If a normally closed contact is needed, thencolumn A is used.

When wiring a Form-A contact output, column Cis alwaysused for wiring. If no current monitoring is required, thethe second wire is attached to column B. If the currentmonitor feature is required. then the second wire will beattached to column Afor that output.

-2

-3

-4

-18-1b-1c-2a-2b-2c-38-3b-3c-4a-4b-4c

NOTE: Wherever a tilde "-" symbol appears, substitute with the Slot Position ofthe module.

Copyright 2008 GE Multilin 42 Wiring - 6 - 110 - 1


SCADAIl'lCICOMPUTER

DATA

RELAY

GROU~D SHIElD ATSCADAIPlClCOMPUTER ONLY

OR AT UR RELAY ONlY

DATA

Each CPU is equipped with either 1 or 2 RS485 communication ports depending onwhich option of the CPU is purchased.

The connection for the primary RS485 port is shown above. The positive input isconnected to terminal D2a. The negative input is connected to terminal D3a. Thecommon input of the RS485 connection should be connected to terminal D4a.

These wires can then be 'Daisy Chained' to another UR to set up a larger network.

The maximum number of devices that can be set up series like this without needingan amplifier to regenerate the signal is 32.

Copyright 2008 GE Multilin 46 Wiring - CPU Comm.


Enervista Software InstallationEnervista is the Software program that is used communicate, configure and andtroubleshoot faults within the UR relay

The following minimum requirements must be met for the Enervista® software toproperly operate on a Pc.

• Processor: Intel® Pentium 300 or higher

• RAM Memory: 64 MB minimum (128 MB recommended)

• Hard Drive: 50 MB free space required before installation of UR Setup software

• 0/5: Windows® NT 4.x or Windows® 9x/2000

• Device: CD ROM drive

• Port: Unused communications port (e.g. COMl (2) I Ethernet)

Copyright 2008 GE Multilin 48 SFTWR - Installation


Programming Software Installation

To download the Software to Configure your UR relay, go to the following web site

http://pm.geindustrial.com/enervista/launchpad.asp

Fill our the information shown below and press the Download button.

When the text box prompts you, click on Open to begin installing the software.

When the dialog box prompts you, click on Open to begin installing the software.

When the installation procedure is complete, the Enervista Launchpad interface willautomatically open. If the interface did not automatically start up. click on theEnervista icon on you desktop to start the program.



Finally. double click on the Setup Program icon to complete the downloadprocedure.

Click on the lED setup button, and a UR icon will appear.

Click on the UR icon to start up the UR configuration program.



Communication Setu2

The UR can communicate a computer that has the UR Setup software installed on it through 1of three mediums: Serial Connections. Ethernet Connections, and through a ModemConnection.

The UR Setup software must have three settings configured within it before it can communicatewith a UR. These settings are:

Device ConfigurationSite ConfigurationInterface Configuration

A Device is any UR that will be communicating with the UR Setup program. Many differentDevices can be configured to communicate with the UR Setup software at one time.

A Site is a group of Devices. This grol.;lping is set up by the user to make it easier to find aparticular device.

An Interface is the hardware medium that the Device will be communicating over and thesettings that need to be configured for that particular hardware.

Interfaces

~ /Sites

Copyright 2008 GE Multilin 55 SITE CREATION


LAB 2: Serial Connection Configuration

Configure the UR Setup Software to communicate with a UR using an RS232 serialconnection.

Copyright 2008 GE Multilin 56 Create SITE - 2


Settings Structure

Within the Settings Menu. there are several sub-menus that are shown below.

The Product Setup menu contains settings that are not dependent on the powersystem. Examples of settings found in this menu are Communications and the ClocksettingsThe System Setup menu contains settings that are highly dependant on the powersystem. Examples of settings found in this menu are the CT and VT ratios.

The Fle)(logic menu contains settings that allow the customize the relay usingBoolean algebra based equations.

The Grouped Elements menu contains settings for all the protection elements foreach relay. There are 6 groups of protection elements that can have differentprotection characteristics and settings for each group to allow for greatercustomization of the relay.The Inputs/Outputs menu contains settings to configure all of the different digitalinput and output devices on the relay. Examples of these are the Contact Inputs andContact Outputs.

The Transducer I/O menu contains settings to configure the DCMA and RTDtransducer inputs. If no transducer module is installed. then there will be no settingsshown under this menu.

The Testing menu allows the user to perform maintenance tasks such as forcing aContact Output to change state.

Copyright 2008 GE Multilin 58 Device Settings - Navigation - 1


Lab 3: Chan9Jn.g a SettingOpen up a setting menu window, make changes to some settings and then savethese changes to the relay.

Copyright 2008 GE Multilin 59 Device Settings - Navigation - 2


Product Setup MenuThe Product Setup menu contains setting that are not highly dependant on thepower system.

The PasswQrd Security menu contains setting that limit the access to functions ofthe relay to only those that know the preset password.

There are 2 levels of password security in the UR, Settings and Commands. Eachlevel of access can have it's own unique password or the same one can be usedfor both.

If a change to a setting is attempted when the Settings password is set. the UR willprompt the user for the password before changing the setting.

To change the Settings or Command Password:1. Enter a new numerical password in the Enter New Password field.

2. Enter the same password in the Confirm New Password field. Once this isdone, the change button will become active.

3. Press the Change button and a new encrypted password will appear in theEncrypted Password field. The password has now been set and the user willbe prompted for the password any time that function is performed. Onceentered, the password will be good for 30 minutes without having to enterthe password again.

4. To remove the password, enter "0" in the password fields and press theChange button.

Copyright 2008 GE Multilin 60 Settings Site - 1


User Definable Display!

The UR has the ability to cycle through a series of User Definable Display messageon the display screen when the relay is running and there are no event Targetmessages to display.

To program the User Definable Display messages:

1. Open the Display Properties window from the Product Setup menu.

2. Configure the Default Message Timeout to set the amount of time that the relayneeds to be idle before beginning to show the User messages.

3. Configure the Flash Message time to set the amount of time that each messagedisplayed before going on to the next message.

4. Open the User-Definable Displays window.

5. Enter the text to be displayed in the Top Line and Bottom Line for each displaymessage.

6. If you require an actual value (such as a current value) to be shown in thedisplay message. enter the - sign where you want the value to be shown.

7. Enter the Modbus address of the value to be displayed (in decimal) in the Item 1field.

8. For each successive - sign, enter a Modbus address in the next Item field.

Copyright 2008 GE Multilin 61 Settings Prod. Setup - Display


.Real Time Clock (tRIG-B)

The UR has an internal REAL TIME CLOCK that is used for time-stamping ofevents. This clock has an accuracy approximately +/-1 minute per month. Thedate and time for each relay clock can be synchronized to other relays using anIRIG-B signal.

To program the Real Time Clock to use an externallRIG-B generator:

1. Open the Real Time Clock window from the Product Setup menu.

2. Click on the IRIG-B field and open the pull-down menu by clicking on the boxon the right of the field.

3. Select the type of IRIG-B generator (DC shift or Amplitude Modulated) that isbeing used to send the clock information to the UR. If NONE is selected. theUR will use it's inter clock for time-stamping.

NOTE: If DC Shift or Amplitude Modulate is selected for the real time clock and noIRIG-B signal is be.ing received by the UR, the UR will display a Targetmessage indicating that the IRIG-B signal is bad. This is a Minor failuremessage which means the UR only displays this message and will NOT bringitself out of protection.

Copyright 2008 GE Multilin 62 Settings Prod. Setup - Clock


The Oscillography Record is the waveform capture ability available in the UR. TheUR does not automatically record a waveform in the event of a trip and the sizeand resolution of these records are not constant. These functions must first beconfigured by the user.

There is a finite amount of memory space allocated for the recording ofOscillography files. How this space is to be allocated is defined by the user in thethree methods described below.

The memory space available can left as one long record using the entire memoryspace available, or can be split up into up to 64 different smaller records.

The sample rate at which the Oscillography records the record can be set between8 and 64 samples per cycles. The more samples per cycle required, the smallerthe record will be.

The number of different Analog and Digital channels being recorded affects thelength of Oscillography record. The more channels being recorded, the smallereach record will be.

Below is a graph showing the length of some records with various Oscillographysettings.

Copyright 2008 GE Multilin 63 Settings Prod. Setup - Osci". - 2

•


'Records

8

8

8

8

8

8

32

#CTNTs·

1

2

2

2

2

2

sample Rate

8

16

16

16

16

16

32

64

64

·'DigitaIS::·.. #Analogs . .Cyclesl Record

o 0 1872.0

16 0 1685.0

16 0 266.0

16 4 219.5

16 4 1295

64 16 93.5

64 16 57.6

64 16 32.3

64 16 9.5

Settings Prod. Setup - Oscil!. - 1



Data Lo9.9!I

The Data Logger is allows the user to record the Trending of UR analog valuesover a prolonged period of time.

There is a finite amount of memory space allocated for the recording of the DataLogger file. How this space is to be allocated is defined by the user directlyaffects the length of time that the data that can be recorded for.

To program the Data Logger to record the trending information:

1. Open the Data Logger window from the Product Setup menu.

2. Configure the Rate field to set how often the Data Logger will record the asample of the analog values.

3. Select any analog value (such as Phase A RMSI that you require the DataLogger to record.

Copyright 2008 GE Multilin 66 Settings Prod. Setup - Data Log.


=ON

Contact Inputs

Contact Inputs monitor the status of external Switches or Contacts to allow theUR to make better decisions about the state of the power system.

Contact Inputs measure the amount of voltage applied across it's two contacts. Ifthe voltage applied across the contacts is greater than the Threshold Voltagesetting, the Contact Input turns ON

125V------.....+ Contact

Input

OVTo configure the Contact Inputs:

1. Open the Contact Inputs settings window that can be found under Settings>Inputs/Outputs

2. In the ID field, you can enter a text name to explain what function this ContactInput will have. This name will then be used on all screens and displays on theUR and in the UR Setup Software.

3. Configure the Debounce Time to set the minimum amount of time the inputvoltage must be above the Threshold voltage setting in order for the ContactInput to turn ON.

4. Open the Contact~~"===

5. Configure the Threshold field to set the minimum amount of voltage neededto be across the inputs of that group of 4 Contact Inputs in order for them torecognize and ON condition.


•


Flexlogit™Flexlogic is the tool within the UR that allows for customization ofthe protection andcontrol within the relay.

Flexlogic is based on Boolean Algebra that allows customization through a series ofequations.

Flexlogic Equations consist of Operands. Operators and Outputs.

The Operands (or inputs to the equationsl have a logic state of 1 or 0 and can be anyUR inputs, outputs. or the result of any protection element.

The Operators perform logical comparisons of the operators that are assigned asinputs to the operator. Examples of these functions are AND gates, Timers, andLatches.

The Output (or resultl of each Flexlogic equation is stored in Virtual Output. Thereare 64 Virtual Outputs available allowing 64 different Flexlogic Equations. TheVirtual Outputs can then be assigned to drive many different functions within theUR (such as changing the state of a Contact Output.

Each Flexlogic equation is evaluated every 2 milliseconds, regardless of thenumber of Flexlogic equations programmed into the relay

Copyright 2008 GE Multilin 71 Flex Logic - Intra


Qperators

Boolean Algebra is the basis for programming Flexlogic equations and thus anintegral part of customizing the protection and control functions in the UR.

The following will demonstrate the Boolean algebra logic gates that are available inthe UR and review functionality of each operand.

An AN0 gate can have between 2 and 16 inputs assigned to it. The output of anAND gate will only be 1 when all of it's inputs are in the logic 1 state. -

I Input 1 f'""'b-,L......cc::jO!!Uz:T:1. Input2~

In1 In2 OUT

0 0 0

0 1 0

1 0 0

1 1 1

An NAN0 gate can have between 2 and 16 inputs assigned to it. The outputof an NAND gate will always be 1 unless all of it's inputs are in the logic 1 state.

I Input 1~ I. NAND OUTInput 2 . --

In1 In2 OUT

0 0 1

0 1 1

1 0 1

1 1 0

An OR gate can have between 2 and 16 inputs assigned to it. The output of anOR gate will be 1 unless all of it's inputs are in the logic 0 state.

In1 In2 OUT

0 0 0

0 1 1

1 0 1

1 1 1

Copyright 2008 GE Multilin 72 Flex Logic - Gotes 1


An NOR gate can have between 2 and 16 inputs assigned to it. The output ofan NOR gate will be aunless all of it's inputs are in the logic astate.

I Input 1 ~~m:::J1: Input2~< OUT

In1 In2 OUT

0 0 1

0 1 0

1 0 0

1 1 0

An XOR gate must always have 2 inputs only. The output of an XOR gate willbe 1 only when one of it's inputs are in the logic state 1 and the other input i!? inthe logic state O.

In1 In2 OUT

0 0 0

0 1 1

1 0 1

1 1 0

ANOT gate will have an output of awhen it's input is in the logic state 1 and 1output when it's input is in the logic state O.

In1 OUT

1 0

0 1

A LATCH is used for storing the value of an input for such applications assealing in an operand


OUT

73

SET RESET OUT

0 0 LastState

0 1 0

1 0 1

1 1 0

Flex Logic - Gates 2


FlexLogJfFlexlogic equations are the basis for customizing the logic within the UR.

The programming of Flexlogic Equations takes place in the Flexlogic Equation Editorwhich is found under:

Settings> Flexlogic > Flexlogic Equation Editor

End ofUst

End of list

End of list

End of UstEnd of UstEnd of listEnd of Ust

End ofUst

End of ListEnd of Ust

The Flexlogic equation editor consists of two columns that you will need forconfiguring your Flexlogic equations: the Type column and the Syntax column.

The Type columns contains a listing of all of the different types of Operands andOperators that are available in Flexlogic. Examples of these are Contact Inputs andAND gates.

The Syntax column allows you to select the details required for the element that wasselected in the Type column

Each line in the Flexlogic Equation Editor that contains a Type and Syntax elementconstitutes one line of code. Each line of code in the editor is executed sequentiallyfrom the top to the bottom, therefore each equation that you program will beexecuted in the order that they are programmed in the editor.

Copyright 2008 GE Multilin 74 Flex Logic


In order to explain the process of programming Flexlogic equations as easily aspossible. we will not use any operators in programming out first equation. We willsimply assign the status of an Operator (In this case a Contact Input) to the VirtualOutput.

In order program this equation into our Flexlogic Editor, we need to follow the firstrule of programming Flexlogic Equations:

Rule #1

ASSIGNING THE OUTPUT OF AN OPERAND OR OPERATOR TO AVIRTUAL OUTPUTTERMINATES THE EQUATION.

Therefore. we will have only two lines of code in our Flexlogic Equation Editor. Thefirst one will be listing the Operand (Contact Inputl! and the second line will beassigning this Operand to a Virtual Output.

\Akfte Virtual OulpullAssignJEnd of ListEnd of List

Copyright 2008 GE Multilin 75 . Flex Logic


In order to Utilize the available logic gates in our Flexlogic Programs. we need tofollow the second and third rule for programming Flexlogic equations:

Rule #2

OPERANDS MUST PRECEDE THE OPERATOR (GATE) WHICH USES THE OPERANDSAS INPUTS.

Rule #3

OPERATORS (GATES) HAVE ONLY ONE OUTPUT. THE OUTPUT OF AN OPERATOR(GATE) CAN BE USED AS AN INPUT TO ANOTHER OPERATOR (GATE) OR CAN BEUSED TO DRIVE A VIRTUAL OUTPUT.

For a Flexlogic Equation where we will have two contact Inputs being theinputs for an OR logic gate, the two contact inputs must be listed in the firsttwo line of the equation to adhere with Rule #2.

The OR gate will be listed in the third line of the equation.

Assigning the output of the OR gate to the Virtual Output will be the last line ofthe equation.

Copyright 2008 GE Multilin 78 Flex Logic


LAB # 5 Programming Flexlogic EquationsIn this exercise you will become familiar with the process of using logic gates whenprogramming Flexlogic equations.

Clear all of the settings in the Flexlogic equation editor by opening up the editorwindow and press the Default Settings button found on the menu bar at the top of thescreen.

Program an equation that uses Contact Input #1 and Contact Input #2s as the inputsto an OR gate and assign the output to Virtual Output 1.

Verify by monitoring the LED's on the Front Panel that the output of the equationmatches the truth table below.

Repeat this process and create a separate equation for each of the logic gatesdescribed earlier in this section. Assign the output of the equation (Virtual Output) toan LED and verify that the output matches the truth table for that logic gate.


In1 In~ OUT

0 0 1

0 1 1

1 0 1

1 1 0

Lob 5 - Flex Logic


Contact Outputs

A Contact Output is a physical switch inside the UR that is used for signaling andcontrolling other outside devices such as a breaker.

OFF State ON State

Normally Closed

Normally Open

Normally Closed

Normally Open

To configure the Contact Outputs:

1. Open the Contact Outputs settings window that can be found underSettings> Inputs/Outputs

2. In the ID field. you can enter a text name to explain what function this ContactOutput will have. This name will then be used on all screens and displays onthe UR and in the UR Setup Software.

3. In the Operate field, select which UR Operand will command this ContactOutput to change state. This Operand can be any UR Input (such as ContactInputsl or Output (such as Virtual Outputsl or protection element. Nowwhenever that Operand assign to the Contact Output turns ON, the ContactOutput will change state.

4. In the Seal-In field. select the input that will keep the Contact Output closed(sealed inl even when the Operate Element has turned OFF. This Seal-In input isnormally the Current Monitoring (loNl element of the Form A relay that detectswhen the current flowing through the contact has dropped below 80 milliAmps and is safe to open.



FlexLogic Control Almlication

Flexlogic equations can be a very useful tool in creating a Power System Controlscheme using the UR relay

The above diagram shows how a Contact Input can be used through Flexlogic tocontrol the status of a Power System breaker.

Contact Input 1 is assigned to Virtual Output 1. Virtual Output 1 is assigned tochange the state of Contact Output 1 which is in turn wired up to the Close inputof a Breaker.

Contact Input 2 is assigned to Virtual Output 2. Virtual Output 2 is assigned tochange the state of Contact Output 2 which is in turn wired up to the Trip inputof a Breaker.

Copyright 2008 GE Multilin 82 Flex Logic Application


LAB #6: Assigning Contact Outputs

Create a local breaker control scheme using Contact Inputs, Fle)(logicEquations, and Contact Outputs as shown in the diagram in the previouspage.

•

..

Copyright 2008 GE Multilin 83 . Lob 6 - Contacts Output


Timers

Timer are used to add intentional delays in the executing of Flexlogic equations.There are two types of delays that can be added to Flexlogic equations: Pickupdelays and Drop-out delays.

Input Signal ---1 i

fI

I II i

I I I II I I II I I II I i

JOutput Signal I I

After TimerI I

Pickup Drop-outDelay Delay

To use a timer in Flexlogic equations

1. Create an equation that has only one input (Le. Contact Input 1) to the timer.Timers may have only one input.

2. In the next line of the Flex logic Equation, list select Timer from the Type field.

3. In the syntax field, select which Timer to use. NOTE, each timer may only beused once in ALL Flexlogic equations.

Conlacllnpuls On

TIMER\Nrile Virtual Oulpul[Assign]

Conlacllnpuls On

VVrfte Virtual Oulpul[Assign)

End of List

Local Close On(H5a)

Timer 1

=Case Signal (V01)

Local Trip On(H5c)

= Trip Signal (V02)

4. Open the Flexlogic Timers window found under:Settings> Flexlogic > Flexlogic Timers

5. Set the Pickup delay and the Drop-out delay for the Timer you are using.

Copyright 2008 GE Multilin 84 TImers


LAB # 7: Event RecordsIn this exercise, you will create a Flexlogic Equation that uses Pickup timers andDrop-out timers and measure the length of these timers using the Event Recordcapabilities of the UR.

Create a Flexlogic Equation that uses a Contact Input as the input of a timer.Assign the output of the timer to a Virtual Output.

Conted Inputs OnTIMER

VWle VirtU811 Outpul(Assign]

Local Close On(H511)Timer 1

=Oose Signal (V01 )

Program this timer to have a pickup delay of 200 ms and a dropout delay of 100ms.

Open the Contact Input settings window found under:

Settings> Inputs/Outputs In the Events field, select Enabled from the pull-downmenu. This will cause the changing of state of the Contact Input to be recorded inthe Event Record.

Open the Virtual Output settings window found under: Settings>Inputs/Outputs In the Events field, select Enabled from the pull-down menu.This will cause the changing of state of the Virtual Output to be recorded in theEvent Record.

Copyright 2008 GE Multilin 86 Lo b 7 - Events Record


Clear any events that may already be in the Event Record by opening up the Clearrecords window found under: Commands> Clear Records

And clicking on: CLEAR Event Records

Turn ON the switch wired up to Contact Input 1 and then quickly turn it OFF.

Open the Event Record by clicking on:

Actual Values> Records> Event Record

Copyright 2008 GE Multilin 87 Lob 7 - Cont'd


LAB # 8: Oscillo9!:QQ.hy RecordsIn this exercise, you will use the Flexlogic Equation with a timer that was createdin the previous Lab and measure the length of this timers using theOscillography Record capabilities of the UR.

Open the Oscillography settings window found under

Settings> Product Setup> Oscillography

Configure the Number of records to be stored in the Oscillography memory to be20 records, the Trigger Position to be 25% pre-trigger data, and the Trigger Sourceto be Contact Input 1.

This will cause the UR to begin recording an Oscillography record every time thatContact Input 1 turns ON.

In the Digital Channels, select any inputs or outputs that you want to see in theOscillography record.

In this case, select Contact Input 1 and Virtual Input 1.

Copyright 2008 GE Multilin 89 Lob8


Virtual InputsVirtual Inputs are software controlled switches that can be turned ON and OFF bysending a command to the UR from a computer that is connected to thecommunications network.

Virtual Inputs allow for controlling of UR functions from a remote location as long asthere is a communication link between the UR and the remote location.

To configure the Contact Inputs:

1. Open the Virtual settings window that can be found underSettings> Inputs/Outputs - Virtual Inputs

2. In the Function field I select Enabled from the pull down menu of any VirtualInputs you wish to use.

3. In the ID field, enter a text name that will explain what function this VirtualInput will have. This name will then be used on all screens and displays onthe UR and in the UR Setup Software.

4. From the Type field, select Self-Reset or Latched from the pull down menu. IfSelf-Reset is selected, the Virtual Input turn ON when commanded and thenturn OFF 2ms later. If Latched is selected. the Virtual Input will stay ON untila second command is sent to the UR to turn it OFF.

5. Monitor the status of the Virtual Inputs that have been enabled by openingthe Virtual Input status window that is found under: Actual Values>Status> Virtual Inputs.

6. To command a Virtual Input to turn ON, open the command Virtual Inputswindow under: Commands> Virtual Inputs

7. Open the pull-down window and select ON. To send this command to theUR, press the Save icon that is used to send settings to the relay. The statusof the Virtual Input will change to ON

Copyright 2008 GE Multilin 93 Virtual Outputs


LAB #9 Virtualln~

In this exercise. you will add Virtual Inputs to yourbreaker control scheme so thatyou will now have local and remote control of the breaker.

First: Configure the Virtual Inputs

Open the Virtual Output settings window found under:

Settings> Inputs/Outputs> Virtual Inputs > Virtual Inputs

Enable the Function field for Virtual Input 1 and Virtual Input 2.

Enter a text name in the 10 fields that will identify the function of each VirtualInput

Select the Virtual Inputs to be Latched in the Type field.

Select Enabled from the Events pull-down menu"to record the Virtual Inputschanging state In the Event Record.

Copyright 2008 GE Multilin 95 Lab 9 - Virtual Outputs


Second: Configure Flexlogic Equation

We now need to change our two Flexlogic control equations so that either ContactInput 1 or Virtual Input will Close the breaker, and either Contact Input 2 or VirtualInput 2 will Trip the breaker.

Open the Flexlogic Equation Editor window.

Insert a new line above row number 2 and enter Virtual Input lin the Type andSyntax fields. Insert a new line above row number 3 and enter a 2 input OR gate.

Repeat this process for equation number 2.

You now have 2 ways of controlling a breaker. Locally as if turning ON a switchlocated in a substation, and Remotely by sending a command from an Operatorlocated at another location.

Finally: Configure Oscillography to record operation

If we now want to record the tripping of a breaker in the Oscillography record, youmust configure the UR to perform this function.

Since the Trigger Source only has one input. and we want any element that causesthe breaker to trip to cause the UR to record an Oscillography file, we must createanother Flexlogic equation that triggers the Oscillography.



Q!gital ElementsDigital Elements allow programmable messages to be displayed on the UR screenin the event of any UR elements turning ON.

The message that is displayed can be programmed to read any text you desireand can be Latched or Self resetting.

To configure the Digital Elements:

1. Open the Digital Elements settings window that can be found underSettings> Control Elements> Digital Elements

2. Enable the Digital Element by selecting Enabled in the Function field.

3. In the Name field, enter the text that you would like to display on the FrontPanel screen when the Digital Element turns ON.

4. In the Input field, select the UR Operand that will turn ON the Digital Element.This operand can be any Input, Output or status of any protection element.

5. The delay fields can be set to delay the displaying or clearing of the targetmessage

6. The block field can be selected to block the Digital Element from turning ON.

7. In the Target field, select either Self-Reset or Latched. If Latched is selected,when the operand turning the Digital Element On has turned OFF, themessage will still be displayed until the Reset button has been pressed.

8. Select Enabled in the Events field if you want the Digital Element changingstate to be displayed in the Event Record.



Sources

Metering

The primary function of a protection relay is to measure the magnitude of thecurrents and voltages and open a breaker when those currents and voltagesindicate that a situation that is harmful to the power system is occurring.

All current and Voltage inputs are connected to the DSP modules is the URplatform. The UR allows up to three DSP's to installed in one relay allowing forup to 6 circuits to be protected with one relay.

Each group of currents and voltages that the UR uses for metering andprotection calculations are known as Sources.

The UR relay must be programmed to know which currents and voltages to usein each source before the UR will meter any values.


-----_...._------------_.-


Each group of currents or voltages wired to the relay are given a name thatreferences where the inputs are wired to in the UR.

The name each group is given refers to the location of the DSP module that theinputs are wired to and the row on the terminal block where Phase A isconnected.

For example, in the diagram below, one power system circuit is connected to thefirst bank of inputs on the DSP located in slot F. Phase A for that circuit isconnected to row 1. Therefore, this group of current inputs from the powersystem circuit is given the name: F1

The second circuit is wired to the second bank of inputs on the DSP located in slotF. Phase A for that bank is located in row 5, therefore the name of that group ofcurrent inputs is: F5

"Fl F5 Ml M5

F

12345678


F

100

M


CT/VT RatiosThe CT and VT ratio's are used to scale the input current and Voltage levels tobe displayed in metering and protection calculations.

To configure the CT ratio's:

1. Open the CT Ratio settings window found under:Settings> System Setup> AC Inputs> Current

This window will display one column for each of the banks of the currentinputs that are available in the hardware of your UR.

2. In the Phase CT Primary field, enter the Primary ratio of the CT being used onthe power system

3. In the Phase CT Secondary. select either 1 Amp or 5 Amps from the pulldown menu to match the secondary of the CT's being used.

4. In the Ground CT Primary field. enter the Primary ratio of the Ground CTbeing used on the power system

5. In the Ground CT Secondary, select either 1 Amp or 5 Amps from the pulldown menu to match the secondary of the Ground CT's being used.



Protection:Per Unit (PU)

The settings for some current and voltage protection elements are in Per Unitcalculated quantities. The per unit value for each part of the power system beingprotected is based on the CT or VT ratio's being used.

For current elements, 1 per units is equal to the base quantity of the CT ratio.

For example: if the CT ratio is 300/5, one per unit would be 300 Amps Primary or 5Amps Secondary

For Voltage Elements, 1 per unit is the nominal primary or secondary voltage ofthe VT

For example: if the nominal phase VT secondary voltage is is 66 Volts and the VTratio is 1000/1, one per unit would be 66 kV primary or 66 Volts secondary

Copyright '2008 GE Multilin 105 Protection Per Unit


Grouped Elements

In the Universal Relay there are 6 Settings Groups for protection elements. Theseare known as Grouped Elements. All settings group has the exact same protectionelements. The protection elements in each group can have different settings such aspickup level and overload curve.

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Only one settings group is ever active at one time, therefore only the protectionelements configured in that settings group will be active in the relay.

The mechanism to select which settings group is active is found under:Settings> Control Elements> Setting Groups

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If the Function field is Disabled, the first settings group will always be selected. If youwish to be able to access other settings groups, the function field must be set toEnabled.

Each other setting group can be selected as the group to use for protection byselecting an operand in each respective field. Which ever operand is ON, that particularsetting group will be active.

If more that 1 setting group is enabled, the higher of the 2 settings groups will be active.

If no setting group is enabled. Group one will be active by default.

Copyright 2008 GE Multilin 106 Grouped Elements


Protection ElementsAll protection elements must be configured in each particular setting group that youwant them to be active in.

Most protection elements have 4 different settings that must be set to protect thepower system device properly.

1. Function: Each protection element must have the Function field set toEnabled before the element will begin protecting.

2. The Source of current or voltage the protection element will be using in it'scalculations must be selected.

3. The Pickup quantity for that element. This level is often configured in per unitquantities

4. The Block function needs to be set if the protection element ever needs to beblocked from operating. The block being active will have the same result as ifthe protection element was disabled.

Protective Element

Enable

Source

Pickup

-~ Block


I-->~. Output

Protection Elements


For each protection element in the UR, there are 3 operands available for use inFlexlogic Equations.

1. The Pickup IPKP) operand changes from the OFF to the ON state whenever theprotection element identifies that the input variable (voltage. current etc.) isgreater that the pickup value.

2. The Dropout DPO operand changes from the OFF to the ON state wheneverthe protection element identifies that the input variable is less than the pickupvalue. This is the direct inverse of the pickup variable.

3. The Operate operand changes from the OFF to the ON state whenever theprotection element has been picked up after any time delays have elapsed.

Pickup

Enable Dropout

Source

Pickup

Block Operate



Instantaneous Overcurrent

The Instantaneous Overcurrent element (JOC) sets a flag within the relaywhenever the current being input into the relay rise above a set pickup level.

To configure the IOC element.

1. Open the IOC settings window that can be found under:Settings> Grouped Elements> Group 1 > Phase Current> Phase IOC

There are two IOC elements available for each DSP installed in the UR

2. Select Enabled from the Function field pull-down menu.

3. Select the Source that the IOC element will be protecting.\

4. Set the Pickup level in Per Units that the IOC element will indicate an overcurrent condition.

5. Enter a time in the delay fields if you want the operation of the IOC element tobe delayed or the resetting of the element to be delayed.

6. In the Block fields, enter any operand that you want to block operation of theprotection element. This can be done per phase. If the same operand is toblock all phases, then select that operand in each of the 3 block fields.

7. In the Target field. select how you want the target to be displayed, Latched orSelf-Resetting.

8. In the Events field, select Enabled from the pull-down menu if you require theIOC element to be recorded in the Event Record whenever it operates.

NOTE: When this IOC element Operates, it only sets an internal flag in the relay. ThisFlag must then be assigned to a Contact Output or a Flexlogic equation inorder for it to trip a contact.

Copyright 2008 GE Multilin 109 IOC


LAB # 10: Protection SchemeAdd a protection element to the control scheme created earlier so that the IOCelement will trip the breaker.

Copyright 2008 GE Multilin 110 Lob 10 - Event Record

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In the Block fields, enter any operand that you want to block operation of theprotection element. This can be done per phase. If the same operand is toblock all phases. then select that operand in each of the 3 block fields.

In the Target field. select how you want the target to be displayed, Latched orSelf-Resetting.

In the Events field. select Enabled from the pull-down menu if you require theTOC element to be recorded in the Event Record whenever it operates.


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LAB # 11: Protection SchemeAdd a second protection element to the control scheme created earlier so that theToe element will Also trip the breaker.

Copyright 2008 GE Multilin 113 Lob 11


OvervoltcQ!The Overvoltage element (OVI sets a flag within the relay whenever the voltagebeing injected into the relay rises. above a pre-determined level.

To configure the element.

1. Open the Overvoltage settings window that can be found under:Settings> Grouped Elements> Group 1 > Voltage Elements> Phase OV

Disabled

SRC1 (SRC 1)

1.000 pu1.00 s1.00s

OFFSelf-reset

. Disabled

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3. Select the Source that the Overvoltage element will be protecting.

4. Set the Pickup level in Per Units that the Overvoltage element will indicate anover voltage condition.

5. Enter a time in the delay fields if you want the element to have an extra timedelay before operating of the element and if you want a delay before theresetting of the element.

6. In the Block fields. enter any operand that you want to block operation of theprotection element. This can be done per phase. If the same operand is toblock all phases, then select that operand in each of the 3 block fields.

7. In the Target field. select how you want the target to be displayed, Latched orSelf-Resetting.

8. In the Events field, select Enabled from the pull-down menu if you require theOvervoltage element to be recorded in the Event Record whenever it operates.

Copyright 2008 GE Multilin 114 ov


Undervolta~

The Undervoltage element (UV) sets a flag within the relay whenever thevoltage being injected into the relay drops below a pre-determined level.

To configure the element.

1. Open the Undervoltage settings window that can be found under:

Settings> Grouped Elements> Group 1 > Voltage Elements> Phase UV

SRC 1 (SRC 1) SRC 1 (SRC 1)Phase to OrCl\.nCl Phase to Orol.lld

1.000 pu 1.000 puDefinite TIme De1Inte TIme

0.100 pu 0.100 pu


3. Select the Source that the Undervoltage element will be protecting.

4. Configure the Mode field to for the UV element to operate on Phase to Phaseor Phase to Ground Voltage levels.

5. Set the Pickup level in Per Units that the Undervoltage element will indicate anunder voltage condition.

6. Enter a time in the delay fields if you want the element to have an extra timedelay before operating of the element and if you want a delay before ther:esetting of the element.

7. In the Block fields. enter any operand that you want to block operation of theprotection element. This can be done per phase. If the same operand is toblock all phases. then select that operand in each of the 3 block fields.

8. In the Target field, select how you want the target to be displayed. Latched orSelf-Resetting.

9. In the Events field. select Enabled from the pull-down menu if you require theUndervoltage element to be recorded in the Event Record whenever itoperates.

Copyright 2008 GE Multilin 115 uv


Settings FilesThe settings saved in the UR can be retrieved from the relay and stored on yourhard-drive or network. These settings can then be modified when not talking tothe UR and uploaded at a later time.Saving settingsRight Click your mouse on the UR in the Online window that you want to save thesettings for. A pop-up menu will appear.

From the menu, select Read Device Settings. In the window that appears. select thelocation and the filename of the settings you want to save. The UR Setup software willautomatically add the extension .urs to the file. Press OK.

A new file has now been added to OFFLINE window menu that contains all of thesettings that are in your relay.

Expand the new settings file andnotice that this menu has thesame structure as the Settingsbranch in the Online window.

Any changes made to thesettings in the Offline window willonly be made on your computerand not sent to the relay

Copyright 2008 GE Multilin 116 Settings File


Writing settings

To upload the settings that you have stored in the Offline window settings file, click onthe file that you want to upload to a relay.

Hold down your mouse button and drag and drop the icon to the relay in the Onlinewindow.

The settings will automatically be saved into the relay.

Alternatively. click on the settings file in the Offline window that you want uploaded.Right click your mouse on that setting file to make the pop-up menu appear. Select"Write Settings File to Device".

In the menu that pops up. select the UR that you want to send the settings to andpress OK.

The settings will automatically be saved to the relay.

Writing settings sections:To save just a section of the settings from a file in the Offline window to a relay in theOnline window, open the stored settings and highlight the settings group that youwant to upload. Drag and drop the mouse icon onto the relay for saving.

The UR Setup software will now only copy the section of the settings file that washighlighted.

Removing file from Offline WindowTo remove a file from the Offline section of the UR Setup window, highlight the file tobe removed. Right click your mouse and select "Remove File from List".

The UR Software program will then remove the setting file from the Offline window.

NOTE, this file has only been removed from the Offline window. The file is still storedon your computers hard drive and can be accessed later

Copyright 2008 GE Multilin 117 Writing Settings


Adding an Existing file to the Offline WindowTo add a file to the Offline window that is currently stored on your hard-drive orfloppy disk. move your mouse to the Offline window section and right click yourmouse. Select "Add Existing Settings File" from the pop up menu.

Choose the location and filename of the file you want added from the pop upwindow. Press OK.

The settings file will now appear in the Offline window.

Uploading Firmware

Note, when changi,,!g the version of firmware in the UR, all settings that havebeen save will be reset to their default values. Make sure you have saved a copyof these settings.

Occasionally it may be necessary to update the version of firmware installed in theUR in order to take advantage of some of the new features that have been added inlater releases.

Download the new version of firmware from our internet site and store it on yourcomputers hard-drive.

Expand the menu tree for the UR that you want to upgrade in the Online window.Expand the maintenance menu and select "Update Firmware".

In the pop up window. select the firmware file that was downloaded from thewebsite. Press OK.

The UR Setup program will now update the version of firmware. When completedthe UR will reboot and when completed. contain the new version of firmware.

Copyright 2008 GE Multilin 118 Adding


Adding Modules

Extra modules can be added to a UR after the relay leaves the factory to add additionalfunctionality to the relay.

Note, when performing this function, all settings will be cleared from the UR.

To add a module first remove control power from the relay.

Install the new terminal block and slide the module into the correct slot as described inthe Module Removal Section of this manual. Restore control power to the relay.

When the relay completes the boot up sequence there will now be an error messagethat displays: Equipment Mismatch Error. This means that there is some hardwareinstalled in the relay that the CPU is not expecting or the UR is missing some hard thatthe CPU is expecting.

Using the Front Panel keypad:

Press the menu button until the screen displays - Commands: Virtu(Jllnputs

Press the message down button until the screen displays - Relay Maintenance

Press the message right button until the screen displays - Perform Lamp Test

Press the message down button to show - Update Order Code

Press the value up button to change the screen to - Yes and press the Enter button.

The UR will read all of the hardware that is installed in the relay and use that hardwarefor the expected Order Code.

Note that the UR device setup will now have to be modified to match the new OrderCode in order to correctly communicate with the UR.

Copyright 2008 GE Multilin 120 Adding Modules


Testing Contacts

The UR has the ability to Force the status of the Contact Inputs and Contact Outputsto make it easier to perform maintenance testing.

Warning: When forcing the status of Contact Inputs and Outputs. these I/O willactually change state. If any external devices such as breaker are connected to theUR, they may be trigger by the changing of the I/O. Always make sure that the URis isolated from external devices before testing the Inputs and Outputs.

Contact Inputs

To test the operation of the Contact Inputs. open the Force Contact Input settingswindow under:

Settings> Testing> Contact Inputs

First select Enabled from the Test Mode Function field and press the Save button.Notice that Test LED on the front panel will illuminate.

Select Close from the field next to each Contact Input that is listed and press thesave button. The Contact Input will change state and any resulting logic equationsthat are programmed will execute.

Contact Outputs

To test the operation of the Contact Outputs, open the Force Contact Outputsettings window under:

Settings> Testing> Contact Outputs

The Test Mode Function field should already be Enabled since this is the samefunction as used previously in the Force Contact Input section.

Select Energized from the field next to each Contact Output that is listed and pressthe save button. The Contact Output will change state. To change back to the nonenergized state. select De-Energized from the pull-down menu and press the savebutton.

Copyright 2008 GE Multilin 121 Testing Contacts


Setting ClockThe UR has an internal clock that is used for time stamping when when no IRIG-Bsignal is being input into the relay. This clock has the same accuracy as a wristwatchan can fluctuate approximately 1 minute per month.

To set the time and date of this internal clock first ensure that the IRIG-B function isdisabled.

Open the IRIG-B settings found under:

Settings> Product Setup> Real Time Clock

Ensure that the parameter is set to none. Close this window.

Open the: Commands> Set Date and Time window

In this window. there are two methods to set the date and time of the relay.

The first method is to synchronize the UR with time on your computer. Do this bypressing the select button next to the text "Sync Relay to Computer"

The second method is to manually enter a date and time. Enter the correct date andtime in the "Manual Date" and "Manual Time" fields. Press the Select button next tothe text "Set Manual Date and Time"

Copyright 2008 GE Multilin 122 Setting Clock


LAB 2: Serial Connection Configuration

1. Connect one end of a serial cable to the RS232 port on the Front Paneland the other end to a communication port of your Pc.

2. Double Click on the Device Setup menu item that is found at the top of theONLINE window. A new Device Setup window will automatically open up.

3. Click on the Add Site button to add a new site to the UR Softwareenvironment. The name of the Site can be changed by typing in the SiteName field on the right of the window.

4. To add a new Device to that Site. highlight the site on the window on theleft, and press the Add Device button. A new Device will appearunderneath the Site. .

5. The name of the Device can be changed by typing in the Device Namefield.

6. Open the Interface pull-down window and select Serial. Several newsettings will appear

7. Select the correct COM PORT that your computer's serial port. Theremainder of the settings can be left at their defaults.

8. Click on the Read Order Code button to read the Order Code andfirmware version of the UR that you are connected to.

9. Press the OK button to complete the configuration process. A new Siteand Device will now appear in the Online window.

Copyright 2008 GE Multilin Lob 2


Lab 3: Changlng a SettingTo access the settings to change the CT ratio, expand the Settings menu tree anddouble click on the following menu item

Settings> System Setup> AC Inputs> Current

A new window will pop up that shows the Primary and Secondary CT ratios for both thePhase and Ground currents.

A new tab will also appear on the bottom of the screen that is labeled with the name ofthe settings window that was opened. The Tab will have a green flashing light on itindicating that the UR Setup program can communicate with the UR. If the light is red,the UR Setup program is not communicate with the UR.

To reconnect UR Setup program with the UR, click on the connect button that is foundon the top menu bar

Copyright 2008 GE Multilin 124 Lob 3 - Setting Change


In order to be able to view the status of these Contact Inputs when looking at thefront of the UR, you must assign these Contact Inputs to turn on the UserProgrammable LED's.

Open the User programmable LED settings window found under:

Settings> Product Setup> User-Programmable LED's> User-Programmable LED's

Open the pull-down menu from the Operate Field of LED 1 and select ContactInput 1 from the list of operands. Leave the Type field at the default of Self-Reset.

Repeat this process and assign all 8 Contact Inputs to operate the first 8 LED's.

As you now turn On the 8 switches found on the front of your UR test set. youwill also turn ON the first 8 LED's on the front of the UR

Copyright 2008 GE Multilin ' 127 Lab 4 - Cont'd


LAB # 10: Protection SchemeFirst: Configure the IOC Element

Open the 10C settings window that can be found under:

Settings> Grouped Elements> Group 1 > Phase Current> Phase 10C

Enable the Function field of the IOC1 element.

Select SCR 1 in the Source field.

Set the Pickup to be 4 pu

Set the Target field to Latched

. Set the Events Field to Enabled

Second: Configure FleKlogic Equation

We now need to change our second Flexlogic control equation so that now ContactInput 2 being ON, Virtual Input 2 being ON or the lac element Operating will Close thebreaker.

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Insert a new line above line 7 in the Flexlogic equation editor and select ProtectionElements from the pull-down menu in the Type field. In the syntax field, select Phase10Cl OP. Phase lac 1 OP is selected instead of Phase 10Cl PKP because we want thebreaker to Trip after any intentional delays in the protection element occurs.

Change the number of inputs of the OR gate in line 8 to 3 to match the number ofinputs now assigned to it.



50 ..OFF

18 sampIesJcycleConllp 1 Or(H5a)

VIrt \31 On (VI1 )PHASE IOC1 OP

PHASE 1OC1 PKP

Create an overcurrent condition and open the Oscillography record that wascreated.

Click on the preferences icon on the top menu bar to customize the Oscillographyviewer.

Click on the Analog Tab to display the analog parameters.

Configure the Display Order Column to only display the Phase Awaveform and thePhase A RMS current.

Click on the Digital Tab to display the digital parameters.

Configure the Display Order column to display all of the digital channels recorded.Press OK.

Now you will see that the Phase IOC1 element picked up and Operated when thePhase Acurrent rose above the pickup level. The IOC1 OP then turned on VirtualOutput 2 which in turn tripped the breaker.

Copyright 2008 GE Multilin 132 Lab 10


LAB # 11: Protection Scheme

First: Configure the TOC Element

OfFOfF

OFF

1.00

Disabled

-1.000""EEEModl1Y

Inslant....ous

Set the Pickup to be 2 pu

Set the TOC curve to be IEEE Moderately Inverse

Set the TO Multiplier to 0.1

Set the Target field to Latched

Set the Events Field to Enabled

Open the TOC settings window that can be found under:

Settings> Grouped Elements> Group 1 > Phase Current> Phase TOC

Enable the Function field of the TOC1 element.

Select SCR 1 in the Source field.

Second: Configure Flexlogic Equation

We now need to change our second Flexlogic control equation so that now ContactInput 2 being ON, Virtual Input 2 being ON, the IOC element Operating or the TOCelement operating will Close the breaker.

Insert a new line above line 8 in the Flexlogic equation editor and select ProtectionElements from the pull-down menu in the Type field. In the syntax field, select PhaseTOC10P. Phase TOC lOP is selected instead of Phase TOC1 PKP because we want thebreaker to Trip after the Timing curve has elapsed.

Change the number of inputs of the OR gate in line 9 to 4 to match the number ofinputs now assigned to it.



Finally: Configure Oscillography to record operation

In order to record the tripping of the breaker in an Oscillography record whenever theTOC element operates, you need to first configure the Oscillography settings.

First we need to configure the Oscillography trigger to begin recording a recordwhenever the TOC element operates. Therefore we need to alter our third Flexlogicequation which is then assigned to the Oscillography trigger.

Insert a new line above line 14 in the Flexlogic editor. In the Type field, select ProtectionElement. In the Syntax field, select Phase TOC1 PKP. Pickup is selected because wewant to begin recording the waveform as soon as the current rises above the pickuplevel before any timing delays.

Change the number of inputs to the OR gate in line 15 to 4 to match the number ofinputs assigned to it.

Next we need to configure what information the UR needs to record.

Open the Oscillography settings window.

In the Digital Channel section, add Phase TOC1 PKP, Phase TOC DPO and Phase TOC OPto three different channels.

The Phase A RMS current was already added in one of the previous Labs and does notneed to be repeated.


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