GE Feeder Management Relay 750 Instruction Manual page 341

EQUIPMENT MONITORING
EVENT CAUSES
alarm ................................................................................... 6-18
control ................................................................................. 6-18
general ................................................................................ 6-18
logic input ............................................................................ 6-18
pickup .................................................................................. 6-18
trip ...................................................................................... 6-18
warning ................................................................................ 6-18
EVENT RECORDER
event records ....................................................................... 6-16
event types .......................................................................... 6-17
reading .................................................................................. 7-9
setpoints .............................................................................. 5-10
EVENT RECORDS
................................................................ 6-16
EVENT TYPES
...................................................................... 6-17
EXCEPTION RESPONSES
description ............................................................................. 7-7
F
FACTORY SERVICE
........................................................... 5-134
FAST FOURIER TRANSFORM
processing inputs ................................................................... 2-3
FAULT LOCATIONS
............................................................... 6-7
FAULT LOCATOR
description ........................................................................... 5-76
monitoring ............................................................................ 8-33
FAULT VALUES .................................................................. 5-133
FAX NUMBERS
....................................................................... 1-1
FEATURES
............................................................................. 2-1
FFT
see FAST FOURIER TRANSFORM
FLASH MESSAGES
................................................................ 4-5
FLEXCURVES
setpoints .............................................................................. 5-18
FREQUENCY
actual values ........................................................................ 6-11
decay .................................................................................. 5-70
protection elements .............................................................. 5-68
FREQUENCY DECAY
logic diagram ....................................................................... 5-70
protection scheme ................................................................ 8-30
setpoints .............................................................................. 5-70
FREQUENCY TRACKING
FRONT PANEL
description ............................................................................. 4-1
operation ............................................................................... 4-1
setpoints .............................................................................. 5-13
using ..................................................................................... 1-2
G
GETTING STARTED
............................................................... 1-1
GROUND CURRENT MEASUREMENT
GROUND DIRECTIONAL OVERCURRENT
control characteristics .......................................................... 5-50
logic diagram ....................................................................... 5-51
protection scheme ................................................................ 8-23
setpoints .............................................................................. 5-50
GROUND INPUTS
.................................................................. 3-9
GROUND INSTANTANEOUS OVERCURRENT
logic diagram ....................................................................... 5-49
protection scheme ................................................................ 8-23
setpoints .............................................................................. 5-49
setting example ...................................................................... 1-7
GROUND OVERCURRENT
GROUND TIME OVERCURRENT
logic diagram ....................................................................... 5-48
protection scheme ................................................................ 8-23
setpoints .............................................................................. 5-48
setting example ...................................................................... 1-7
GE Multilin
Courtesy of NationalSwitchgear.com
................................................. 5-89
....................................................... 2-3
................................ 8-10
.................................................. 5-47
750/760 Feeder Management Relay
INDEX
H
HARDWARE BLOCK DIAGRAM
HARDWARE INPUTS
.............................................................. 6-5
HARMONICS
........................................................................... 2-3
HELP KEY ............................................................................... 1-3
I
IAC CURVES
constants ............................................................................. 5-35
description ........................................................................... 5-35
trip times .............................................................................. 5-35
IEC CURVES
constants ............................................................................. 5-34
description ........................................................................... 5-34
trip times .............................................................................. 5-34
INCOMER RELAYS
............................................................ 5-110
INPUT CURRENT MEASUREMENT
INPUT VOLTAGE MEASUREMENT
INPUTS
analog .............................................. 3-14
contact ................................................................................... 2-3
ground ................................................................................... 3-9
hardware ............................................................................... 6-5
logic .................................................................... 2-3
restricted earth fault ............................................................. 3-10
sensitive ground ..................................................................... 3-9
signal processing ................................................................... 2-3
specifications ......................................................................... 2-6
virtual .................................................................................... 6-5
INSPECTION CHECKLIST
INSTALLATION
case ...................................................................................... 3-2
checks ................................................................................... 8-2
description ............................................................................. 1-8
putting the relay in Ready state ............................................... 1-8
setpoints .............................................................................. 5-15
INSTALLING PC SOFTWARE
INSTALLING THE RELAY
INTRODUCTION
..................................................................... 2-1
INVERSE TIME UNDERVOLTAGE CURVES
IRIG-B
description ........................................................................... 3-18
monitoring ............................................................................ 8-38
J
JUMPER
security access ...................................................................... 5-4
setpoint access ...................................................................... 1-3
K
KEYPAD
help ....................................................................................... 1-3
operation ............................................................................... 4-3
KEYPAD OPERATION
............................................................ 4-3
L
LAST RESET DATE
.............................................................. 6-13
LAST TRIP DATA .................................................................... 6-6
LED INDICATORS
.................................................................. 5-6
LINE UNDERVOLTAGE
logic diagram ....................................................................... 5-65
protection scheme ................................................................ 8-27
setpoints .............................................................................. 5-65
LINE VT SENSING SETPOINTS
............................................. 2-4
..................................... 8-10
..................................... 8-10
, , ,
5-83 5-85 6-14
,
3-14
...................................................... 1-1
................................................ 4-9
..................................................... 8-56
....................... 5-63
........................................... 5-17
,
8-15
,
5-19
iii