GE 760

ii
750/760 Feeder Management Relay
GE Power Management
TABLE OF CONTENTS
f NEUTRAL INSTANTANEOUS O/C 2 ........................................................ 2-7
g
GROUND TIME OVERCURRENT............................................................. 2-7
h GROUND INSTANTANEOUS OVERCURRENT....................................... 2-7
i NEGATIVE SEQUENCE TIME OVERCURRENT ..................................... 2-7
j NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT ............... 2-7
2.4 INSTALLATION
2.4.1 DESCRIPTION .......................................................................................... 2-8
3. INSTALLATION
3.1 DRAWOUT CASE
3.1.1 DESCRIPTION .......................................................................................... 3-1
3.1.2 CASE INSTALLATION............................................................................... 3-2
3.1.3 UNIT WITHDRAWAL AND INSERTION.................................................... 3-3
3.2 TYPICAL WIRING
3.2.1 DESCRIPTION .......................................................................................... 3-5
3.2.2 REAR TERMINAL ASSIGNMENTS........................................................... 3-6
3.2.3 TYPICAL WIRING DIAGRAM.................................................................... 3-7
3.2.4 PHASE SEQUENCE AND TRANSFORMER POLARITY ......................... 3-8
3.2.5 AC CURRENT TRANSFORMER INPUTS ................................................ 3-8
3.2.6 GROUND AND SENSITIVE GROUND CT INPUTS.................................. 3-8
3.2.7 RESTRICTED EARTH FAULT INPUTS .................................................. 3-10
3.2.8 ZERO SEQUENCE CT INSTALLATION ................................................. 3-11
3.2.9 AC VOLTAGE TRANSFORMER INPUTS............................................... 3-11
3.2.10 CONTROL POWER................................................................................. 3-12
3.2.11 TRIP / CLOSE COIL SUPERVISION....................................................... 3-13
3.2.12 SOLID STATE TRIP OUTPUT................................................................. 3-14
3.2.13 LOGIC INPUTS........................................................................................ 3-14
3.2.14 ANALOG INPUT ...................................................................................... 3-14
3.2.15 ANALOG OUTPUTS................................................................................ 3-15
3.2.16 RS485 / RS422 COMMUNICATION PORTS .......................................... 3-16
3.2.17 RS232 FRONT PANEL PROGRAM PORT ............................................. 3-18
3.2.18 IRIG-B...................................................................................................... 3-18
4. 750/760 PC PROGRAM
4.1 OVERVIEW
4.1.1 DESCRIPTION .......................................................................................... 4-1
4.1.2 HARDWARE AND SOFTWARE REQUIREMENTS.................................. 4-1
4.1.3 HARDWARE CONFIGURATION............................................................... 4-1
4.2 INSTALLATION / UPGRADE
4.2.1 750/760 PC PROGRAM UPGRADING...................................................... 4-2
4.2.2 INSTALLATION ......................................................................................... 4-3
4.3 750/760 PC MAIN WINDOW
4.3.1 MAIN WINDOW SCREEN ......................................................................... 4-4
4.3.2 TOP LEVEL MENU SUMMARY ................................................................ 4-4
4.3.3 TOOLBAR SUMMARY .............................................................................. 4-5
4.4 USING 750/760 PC
4.4.1 COMMUNICATIONS CONFIGURATION .................................................. 4-6
4.4.2 UPGRADING RELAY FIRMWARE............................................................ 4-7
4.4.3 ENTERING SETPOINTS........................................................................... 4-8
4.4.4 VIEWING ACTUAL VALUES..................................................................... 4-9
4.4.5 SAVING SETPOINTS TO A FILE.............................................................. 4-9
4.4.6 LOADING SETPOINTS FROM A FILE.................................................... 4-10
4.4.7 USER MAP .............................................................................................. 4-11