GE 750 User Manual

GE Power Management 750/760 Feeder Management Relay
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TABLE OF CONTENTS
1. PRODUCT OVERVIEW
1.1 INTRODUCTION
1.1.1 DESCRIPTION .......................................................................................... 1-1
1.1.2 SUMMARY OF FEATURES ...................................................................... 1-2
1.1.3 USING THIS MANUAL .............................................................................. 1-5
1.1.4 SHIPPING CONTENTS............................................................................. 1-5
1.1.5 ORDER CODE........................................................................................... 1-6
1.2 TECHNICAL SPECIFICATIONS
1.2.1 APPLICABILITY......................................................................................... 1-7
1.2.2 INPUTS...................................................................................................... 1-7
1.2.3 MEASURED PARAMETERS..................................................................... 1-8
1.2.4 PROTECTION ELEMENTS....................................................................... 1-9
1.2.5 MONITORING ELEMENTS ..................................................................... 1-11
1.2.6 CONTROL ............................................................................................... 1-12
1.2.7 OTHER FEATURES ................................................................................ 1-13
1.2.8 OUTPUTS................................................................................................ 1-14
1.2.9 COMMUNICATIONS ............................................................................... 1-14
1.2.10 CLOCK..................................................................................................... 1-14
1.2.11 PHYSICAL SPECIFICATIONS ................................................................ 1-14
1.2.12 TESTING ................................................................................................. 1-15
1.2.13 APPROVALS ........................................................................................... 1-15
1.3 THEORY OF OPERATION
1.3.1 DESCRIPTION ........................................................................................ 1-16
1.3.2 CURRENT AND VOLTAGE WAVEFORM CAPTURE ............................ 1-16
1.3.3 FREQUENCY TRACKING....................................................................... 1-16
1.3.4 PHASORS, TRANSIENTS, AND HARMONICS...................................... 1-16
1.3.5 PROTECTION ELEMENTS..................................................................... 1-17
1.3.6 LOGIC INPUTS........................................................................................ 1-17
2. GETTING STARTED
2.1 USING THE FRONT PANEL DISPLAY
2.1.1 DESCRIPTION .......................................................................................... 2-1
2.2 CHANGING SETPOINTS
2.2.1 DESCRIPTION .......................................................................................... 2-3
2.2.2 INSTALLING THE SETPOINT ACCESS JUMPER ................................... 2-3
2.2.3 HELP KEY ................................................................................................. 2-3
2.2.4 NUMERICAL SETPOINTS ........................................................................ 2-3
2.2.5 ENUMERATION SETPOINTS................................................................... 2-3
2.2.6 OUTPUT RELAY SETPOINTS.................................................................. 2-4
2.2.7 TEXT SETPOINTS .................................................................................... 2-4
2.3 SAMPLE APPLICATION
2.3.1 APPLICATION EXAMPLE......................................................................... 2-5
2.3.2 S2 SYSTEM SETPOINTS ......................................................................... 2-5
a CURRENT TRANSFORMERS .................................................................. 2-5
b VOLTAGE TRANSFORMERS................................................................... 2-5
c POWER SYSTEM...................................................................................... 2-6
2.3.3 S3 LOGIC INPUTS SETPOINTS............................................................... 2-6
a BREAKER POSITION MONITORING ....................................................... 2-6
b REMOTE OPEN/CLOSE AND RESET RTU CONTACTS ........................ 2-6
c ALARM-AFTER-DELAY INPUT................................................................. 2-6
2.3.4 S5 PROTECTION SETPOINTS................................................................. 2-6
a PHASE TIME O/C 1................................................................................... 2-6
b PHASE INSTANTANEOUS O/C 1............................................................. 2-7
c PHASE INSTANTANEOUS O/C 2............................................................. 2-7
d NEUTRAL TIME O/C 1 .............................................................................. 2-7
e NEUTRAL INSTANTANEOUS O/C 1 ........................................................ 2-7

GE 750 Specifications

General

Brand	GE
Model	750
Category	Relays
Language	English