GE 750 User manual

750/760
Feeder Management Relay
INSTRUCTION MANUAL
Software Revision: 7.0x
Manual P/N: 1601-0120-A5
Manual Order Code: GEK-106471D
Copyright © 2005 GE Multilin
GE Multilin
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: [phone] Fax: [phone]
Internet: http://www.GEmultilin.com
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GE Multilin's Quality
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registered to ISO9001:2000
QMI # 005094
UL # A3775

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GE Multilin
GETTING STARTED Important Procedures
Cautions and Warnings...................................................................................................................... 1-1
Inspection Checklist ............................................................................................................................ 1-1
Manual Organization .......................................................................................................................... 1-2
Using the Relay
Menu Navigation ................................................................................................................................ 1-2
Panel Keying Example........................................................................................................................ 1-5
Changing Setpoints
Introduction ......................................................................................................................................... 1-5
The HELP Key...................................................................................................................................... 1-6
Numerical Setpoints ........................................................................................................................... 1-6
Enumeration Setpoints....................................................................................................................... 1-7
Output Relay Setpoints .................................................................................................................... 1-10
Text Setpoints ................................................................................................................................... 1-11
Application Example
Description ........................................................................................................................................ 1-11
S2 System Setpoints ........................................................................................................................ 1-19
S3 Logic Inputs Setpoints ................................................................................................................ 1-20
S5 Protection Setpoints.................................................................................................................... 1-21
Installation ......................................................................................................................................... 1-22
Commissioning
INTRODUCTION Overview
Description .......................................................................................................................................... 2-1
Theory of Operation
Description .......................................................................................................................................... 2-3
Current and Voltage Waveform Capture .......................................................................................... 2-3
Frequency Tracking ............................................................................................................................ 2-4
Phasors, Transients, and Harmonics................................................................................................. 2-4
Processing of AC Current Inputs ....................................................................................................... 2-4
Protection Elements............................................................................................................................ 2-4
Logic Inputs ......................................................................................................................................... 2-4
Ordering
Order Codes ........................................................................................................................................ 2-6
Example Order Codes......................................................................................................................... 2-6
Accessories.......................................................................................................................................... 2-6
Specifications
Applicability......................................................................................................................................... 2-7
Inputs ................................................................................................................................................... 2-7
Measured Parameters ........................................................................................................................ 2-8
Protection Elements............................................................................................................................ 2-8
Monitoring Elements ........................................................................................................................ 2-10
Control Elements .............................................................................................................................. 2-11
Outputs .............................................................................................................................................. 2-12
Output Relays.................................................................................................................................... 2-12
CPU .................................................................................................................................................... 2-12
Physical.............................................................................................................................................. 2-13
Testing ............................................................................................................................................... 2-13
Approvals .......................................................................................................................................... 2-14
INSTALLATION Mechanical Installation
Drawout Case...................................................................................................................................... 3-1
Installation ........................................................................................................................................... 3-2
Unit Withdrawal and Insertion........................................................................................................... 3-3
Ethernet Connection ........................................................................................................................... 3-4
Rear Terminal Layout ......................................................................................................................... 3-5
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Electrical Installation
Phase Sequence and Transformer Polarity.......................................................................................3-8
Current Inputs ......................................................................................................................................3-8
Ground and Sensitive Ground CT Inputs ..........................................................................................3-8
Restricted Earth Fault Inputs ..............................................................................................................3-9
Zero Sequence CT Installation..........................................................................................................3-10
Voltage Inputs....................................................................................................................................3-10
Control Power ....................................................................................................................................3-11
Trip/Close Coil Supervision ..............................................................................................................3-12
Logic Inputs........................................................................................................................................3-13
Analog Input.......................................................................................................................................3-13
Analog Outputs..................................................................................................................................3-13
Serial Communications.....................................................................................................................3-14
RS232 Communications....................................................................................................................3-16
IRIG-B..................................................................................................................................................3-17
INTERFACES Front Panel Interface
Description ...........................................................................................................................................4-1
Display..................................................................................................................................................4-1
LED Indicators
Description ...........................................................................................................................................4-1
750/760 Status LED Indicators ............................................................................................................4-2
System Status LED Indicators ............................................................................................................4-3
Output Status LED Indicators .............................................................................................................4-4
Relay Messages
Keypad Operation................................................................................................................................4-5
Diagnostic Messages ..........................................................................................................................4-6
Self-Test Warnings ..............................................................................................................................4-6
Flash Messages ...................................................................................................................................4-8
EnerVista 750/760 setup Software Interface
Overview ............................................................................................................................................4-10
Hardware............................................................................................................................................4-10
Installing the EnerVista 750/760 setup Software.............................................................................4-12
Connecting EnerVista 750/760 setup to the Relay
Configuring Serial Communications................................................................................................4-14
Using the Quick Connect Feature.....................................................................................................4-15
Configuring Ethernet Communications ...........................................................................................4-16
Connecting to the Relay....................................................................................................................4-17
Working with Setpoints and Setpoint Files
Engaging a Device.............................................................................................................................4-18
Entering Setpoints .............................................................................................................................4-18
File Support........................................................................................................................................4-19
Using Setpoints Files.........................................................................................................................4-19
Upgrading Relay Firmware
Description .........................................................................................................................................4-24
Saving Setpoints To A File ...............................................................................................................4-24
Loading New Firmware.....................................................................................................................4-24
Advanced EnerVista 750/760 setup Features
Triggered Events ...............................................................................................................................4-25
Waveform Capture (Trace Memory)................................................................................................4-26
Data Logger........................................................................................................................................4-29
Event Recorder ..................................................................................................................................4-29
Modbus User Map.............................................................................................................................4-30
Viewing Actual Values ......................................................................................................................4-30
Using EnerVista Viewpoint with the 750/760
Plug and Play Example .....................................................................................................................4-31

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SETPOINTS Overview
Setpoints Main Menu ......................................................................................................................... 5-1
Setpoint Entry Methods ..................................................................................................................... 5-4
Setpoint Access Security.................................................................................................................... 5-5
Common Setpoints............................................................................................................................. 5-5
Logic Diagrams ................................................................................................................................... 5-6
S1 Relay Setup
Passcode.............................................................................................................................................. 5-7
Communications................................................................................................................................. 5-8
Clock................................................................................................................................................... 5-10
Event Recorder.................................................................................................................................. 5-11
Trace Memory................................................................................................................................... 5-11
Data Logger ....................................................................................................................................... 5-12
Front Panel ........................................................................................................................................ 5-13
Default Messages.............................................................................................................................. 5-14
User Text Messages ......................................................................................................................... 5-15
Clear Data .......................................................................................................................................... 5-15
Installation ......................................................................................................................................... 5-16
Mod 008 Upgrade ............................................................................................................................. 5-16
S2 System Setup
Current Sensing ................................................................................................................................ 5-17
Bus VT Sensing................................................................................................................................. 5-17
Line VT Sensing ................................................................................................................................ 5-18
Power System ................................................................................................................................... 5-18
FlexCurves™ ..................................................................................................................................... 5-18
S3 Logic Inputs
Overview............................................................................................................................................ 5-19
Logic Inputs Setup ............................................................................................................................ 5-20
Breaker Functions ............................................................................................................................. 5-21
Control Functions.............................................................................................................................. 5-22
User Inputs ........................................................................................................................................ 5-23
Block Functions ................................................................................................................................. 5-24
Block Overcurrent ............................................................................................................................. 5-25
Transfer Functions ............................................................................................................................ 5-26
Reclose (760 Only) ............................................................................................................................ 5-27
Miscellaneous ................................................................................................................................... 5-27
S4 Output Relays
Relay Operation ................................................................................................................................ 5-27
Trip Relay........................................................................................................................................... 5-29
Close Relay........................................................................................................................................ 5-30
Auxiliary Relays ................................................................................................................................ 5-31
Self-Test Warning Relay................................................................................................................... 5-32
S5 Protection
Overview............................................................................................................................................ 5-32
Time Overcurrent Curve Characteristics......................................................................................... 5-33
Phase Current.................................................................................................................................... 5-37
Neutral Current ................................................................................................................................. 5-43
Ground Current ................................................................................................................................. 5-48
Sensitive Ground .............................................................................................................................. 5-52
Negative Sequence........................................................................................................................... 5-59
Voltage............................................................................................................................................... 5-64
Frequency .......................................................................................................................................... 5-69
Breaker Failure .................................................................................................................................. 5-72
Reverse Power .................................................................................................................................. 5-73
S6 Monitoring
Current Level ..................................................................................................................................... 5-74
Power Factor ..................................................................................................................................... 5-75
Fault Locator...................................................................................................................................... 5-77
Demand ............................................................................................................................................. 5-79
Analog Input...................................................................................................................................... 5-84
Analog Outputs ................................................................................................................................. 5-87
Overfrequency................................................................................................................................... 5-89

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Equipment..........................................................................................................................................5-90
Pulse Output ......................................................................................................................................5-96
S7 Control
Setpoint Groups ................................................................................................................................5-97
Synchrocheck...................................................................................................................................5-100
Manual Close Blocking....................................................................................................................5-102
Cold Load Pickup.............................................................................................................................5-104
Undervoltage Restoration...............................................................................................................5-106
Underfrequency Restore.................................................................................................................5-107
Transfer Scheme .............................................................................................................................5-108
Autoreclose (760 only) ....................................................................................................................5-122
S8 Testing
Output Relays ..................................................................................................................................5-133
Pickup Test .......................................................................................................................................5-134
Analog Outputs................................................................................................................................5-134
Simulation........................................................................................................................................5-135
Factory Service ................................................................................................................................5-138
ACTUAL VALUES Overview
Actual Values Main Menu...................................................................................................................6-1
A1 Status
Virtual Inputs........................................................................................................................................6-5
Hardware Inputs ..................................................................................................................................6-5
Last Trip Data.......................................................................................................................................6-6
Fault Locations.....................................................................................................................................6-6
Clock .....................................................................................................................................................6-7
Autoreclose (760 only) ........................................................................................................................6-7
A2 Metering
Metering Conventions.........................................................................................................................6-7
Current..................................................................................................................................................6-9
Voltage ...............................................................................................................................................6-10
Frequency...........................................................................................................................................6-11
Synchronizing Voltage ......................................................................................................................6-11
Power..................................................................................................................................................6-12
Energy ................................................................................................................................................6-13
Demand ..............................................................................................................................................6-13
Analog Input.......................................................................................................................................6-14
A3 Maintenance
Trip Counters .....................................................................................................................................6-15
Arcing Current....................................................................................................................................6-15
A4 Event Recorder
Event Records ....................................................................................................................................6-16
Last Reset Date ..................................................................................................................................6-19
A5 Product Info
Technical Support .............................................................................................................................6-19
Revision Codes ..................................................................................................................................6-19
Calibration Dates ...............................................................................................................................6-20
COMMISSIONING Overview
Safety Precautions...............................................................................................................................7-1
Requirements.......................................................................................................................................7-1
Conventions .........................................................................................................................................7-2
Test Equipment....................................................................................................................................7-2
Installation Checks...............................................................................................................................7-3
Wiring Diagrams..................................................................................................................................7-3

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Inputs/Outputs
Logic / Virtual Inputs 1 to 14 .............................................................................................................. 7-5
Virtual Inputs 15 to 20....................................................................................................................... 7-11
Output Relays.................................................................................................................................... 7-11
Metering
Current Metering............................................................................................................................... 7-11
Voltage Metering .............................................................................................................................. 7-12
Power Metering................................................................................................................................. 7-14
Demand Metering ............................................................................................................................. 7-15
Analog Input Metering...................................................................................................................... 7-17
Protection Schemes
Setpoint Groups................................................................................................................................ 7-17
Phase Overcurrent ............................................................................................................................ 7-18
Neutral Overcurrent.......................................................................................................................... 7-23
Ground Overcurrent ......................................................................................................................... 7-26
Negative-Sequence Overcurrent and Voltage................................................................................ 7-27
Voltage............................................................................................................................................... 7-28
Frequency .......................................................................................................................................... 7-33
Breaker Failure .................................................................................................................................. 7-35
Reverse Power .................................................................................................................................. 7-36
Monitoring
Current Monitoring ........................................................................................................................... 7-36
Fault Locator...................................................................................................................................... 7-37
Demand Monitoring ......................................................................................................................... 7-38
Analog Inputs .................................................................................................................................... 7-39
Overfrequency Monitoring............................................................................................................... 7-40
Power Factor ..................................................................................................................................... 7-40
VT Failure........................................................................................................................................... 7-40
Trip Coil Monitor............................................................................................................................... 7-41
Close Coil Monitor ............................................................................................................................ 7-41
Breaker Operation Failure ................................................................................................................ 7-41
Arcing Current................................................................................................................................... 7-42
Analog Output Channels .................................................................................................................. 7-42
IRIG-B ................................................................................................................................................. 7-42
Pulse Output...................................................................................................................................... 7-42
Control Schemes
Setpoint Group Control .................................................................................................................... 7-42
Synchrocheck .................................................................................................................................... 7-44
Manual Close Feature Blocking ....................................................................................................... 7-47
Cold Load Pickup Blocking............................................................................................................... 7-48
Undervoltage Restoration ................................................................................................................ 7-49
Underfrequency Restoration............................................................................................................ 7-52
Transfer Scheme............................................................................................................................... 7-53
Autoreclose (760 only)...................................................................................................................... 7-59
Placing the Relay In Service
Description ........................................................................................................................................ 7-63
On-Load Testing................................................................................................................................ 7-64
Dielectric Strength Testing............................................................................................................... 7-65
APPENDIX Relay Mods
Reverse Power .................................................................................................................................... 8-1
Conformity
EU Declaration of Conformity............................................................................................................ 8-3
Revision History
Release Dates ...................................................................................................................................... 8-4
Release Notes...................................................................................................................................... 8-4
GE Multilin Device Warranty
Warranty Statement ........................................................................................................................... 8-5

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INDEX

Getting Started
Important Procedures 750/760
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GE Multilin
1 Getting Started
Important Procedures
Cautions and Warnings Please read this chapter to guide you through the initial setup of your new relay.
Before attempting to install or use the relay, it is
imperative that all WARNINGS and CAUTIONS in this
manual are reviewed to help prevent personal injury,
equipment damage, and/or downtime.
Inspection Checklist • Open the relay packaging and inspect the unit for physical damage.
• View the rear nameplate and verify that the correct model has been ordered.
• Ensure that the following items are included:
– Instruction Manual
– GE EnerVista CD (includes software and relay documentation)
– mounting screws
• For product information, instruction manual updates, and the latest software
updates, please visit the GE Multilin website at http://www.GEmultilin.com.
If there is any noticeable physical damage, or any of the contents listed are
missing, please contact GE Multilin immediately.
GE Multilin contact information and call center for product support:
GE Multilin
215 Anderson Avenue
Markham, Ontario
Canada L6E 1B3
Telephone: [phone], toll-free 1-800-547-8629 (North America only)
Fax: [phone]
E-mail: [email protected]
Home Page: http://www.GEmultilin.com
CAUTIONWARNING
NOTE

Using the Relay750/760
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Getting Started
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1–2 GE Multilin
Manual Organization Reading a lengthy instruction manual on a new product is not a task most people
enjoy. To speed things up, this introductory chapter provides a step-by-step tutorial
for a simple feeder application. Important wiring considerations and precautions
discussed in Electrical Installation on page 3–7 should be observed for reliable
operation. Detailed information regarding accuracy, output relay contact ratings,
and so forth are detailed in Specifications on page 2–7. The remainder of this
manual should be read and kept for reference to ensure maximum benefit from the
750 and 760. For further information, please consult your local sales representative
or the factory. Comments about new features or modifications for your specific
requirements are welcome and encouraged.
Setpoints and actual values are indicated as follows in the manual:
A2 METERING ZV DEMAND ZPHASE A CURRENT ZLAST PHASE A CURRENT DEMAND
This ‘path representation’ illustrates the location of an specific actual value or
setpoint with regards to its previous menus and sub-menus. In the example above,
the LAST PHASE A CURRENT DEMAND actual value is shown to be a item in the Phase A
Current sub-menu, which itself is an item in the Demand menu, which is an item of
actual values page A2 Metering).
Sub-menu levels are entered by pressing the MESSAGE Xkey. When inside a sub-
menu, the WMESSAGE key returns to the previous sub-menu. The MESSAGE Tand
MESSAGE Skeys are used to scroll through the settings in a sub-menu. The display
indicates which keys can be used at any given point. A summary of the menu
structure for setpoints and actual values can be found on pages 5–1 and 6–1,
respectively.
Using the Relay
Menu Navigation The relay has three types of display messages: actual values, setpoints, and target
messages.
Setpoints are programmable settings entered by the user. These types of
messages are located within a menu structure that groups the information into
categories. Navigating the menu structure is described below. A summary of the
menu structure for setpoints and actual values can be found in Setpoints Main Menu
on page 5–1 and Actual Values Main Menu on page 6–1, respectively.
Actual values include the following information:
1. The status of logic inputs (both virtual and hardware), last trip information,
fault location, and relay date and time.
2. Metering values measured by the relay, such as current, voltage, frequency,
power, energy, demand, and analog inputs.
3. Maintenance data. This is useful statistical information that may be used for
preventive maintenance. It includes trip counters and accumulated arcing
current.
4. Event recorder downloading tool.
5. Product information including model number, firmware version, additional
product information, and calibration dates.
6. Oscillography and data logger downloading tool.
7. A list of active conditions.
Alarms, trip conditions, diagnostics, and system flash messages are grouped under
Target messages.
Pressing the MENU key accesses the header of each the three main menus (for
setpoints, actual values, and target messages), displayed as follows: