GE Feeder Management Relay 750 User Manual

iv 750/760 Feeder Management Relay GE Multilin
INDEX
LOADING SETPOINTS ......................................................... 4-12
LOGIC INPUTS
description ............................................................................. 2-3
dry and wet contact connections ........................................... 3-14
setup ................................................................................... 5-19
tests ...................................................................................... 8-4
typical wiring........................................................................ 3-14
LONG-TERM STORAGE....................................................... 2-12
M
MANUAL CLOSE BLOCKING
logic diagram ......................................................................5-102
setpoints.............................................................................5-101
testing ................................................................................. 8-42
MEASURED PARAMETERS ................................................... 2-7
MEMORY MAP
data formats ........................................................................ 7-40
footnotes ............................................................................. 7-39
modbus ............................................................................... 7-13
organization ......................................................................... 7-12
user map ............................................................................. 4-17
MESSAGES
diagnostic .............................................................................. 4-4
flash ...................................................................................... 4-5
METERING ........................................................................... 8-10
MISC FUNCTIONS SETPOINTS .......................................... 5-26
MODBUS
data link layer ........................................................................ 7-2
description ............................................................................. 7-2
error codes ............................................................................ 7-8
execute operation .................................................................. 7-5
function code 01H/02H ........................................................... 7-4
function code 03H/04H ........................................................... 7-5
function code 05H .................................................................. 7-5
function code 06H .................................................................. 7-6
function code 10H .................................................................. 7-7
function codes ................................................................ 7-2
, 7-4
memory map ........................................................................ 7-13
memory map data formats .................................................... 7-40
memory map organization .................................................... 7-12
read actual values/setpoints ................................................... 7-5
read binary status .................................................................. 7-4
store multiple setpoints .......................................................... 7-7
store single setpoint ............................................................... 7-6
MODEL NUMBER ................................................................... 2-5
MONITORING ....................................................................... 8-33
MONITORING ELEMENTS
specifications ......................................................................... 2-9
MOUNTING TABS .................................................................. 3-2
N
NAMEPLATE........................................................................... 1-1
NEGATIVE SEQUENCE DIRECTIONAL OVERCURRENT
characteristics ..................................................................... 5-61
logic diagram ....................................................................... 5-61
protection schemes .............................................................. 8-24
setpoints.............................................................................. 5-60
NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT
logic diagram ....................................................................... 5-60
protection scheme................................................................ 8-24
setpoints.............................................................................. 5-59
setting example...................................................................... 1-7
NEGATIVE SEQUENCE TIME OVERCURRENT
logic diagram ....................................................................... 5-59
protection scheme................................................................ 8-24
setpoints.............................................................................. 5-58
setting example...................................................................... 1-7
NEGATIVE SEQUENCE VOLTAGE
logic diagram ....................................................................... 5-62
protection scheme................................................................ 8-24
setpoints.............................................................................. 5-62
NEUTRAL CURRENT
logic diagram ....................................................................... 5-74
monitoring ........................................................................... 8-33
setpoints .............................................................................. 5-74
NEUTRAL DIRECTIONAL OVERCURRENT......................... 8-21
description ........................................................................... 5-45
logic diagram ....................................................................... 5-47
operating characteristics ...................................................... 5-45
operating regions ................................................................. 8-21
setpoints .............................................................................. 5-45
test connections ................................................................... 8-22
voltage polarizing ................................................................. 5-46
NEUTRAL DISPLACEMENT
logic diagram ....................................................................... 5-67
protection scheme ................................................................ 8-28
setpoints .............................................................................. 5-67
NEUTRAL INSTANTANEOUS OVERCURRENT
logic diagram ....................................................................... 5-44
protection scheme ................................................................ 8-21
setpoints .............................................................................. 5-44
setting example ...................................................................... 1-7
NEUTRAL OVERCURRENT
setpoints .............................................................................. 5-42
NEUTRAL TIME OVERCURRENT
logic diagram ....................................................................... 5-43
protection scheme ................................................................ 8-20
setpoints .............................................................................. 5-43
setting example ...................................................................... 1-7
NON-LINEAR RESISTOR
in restricted earth fault ......................................................... 5-57
NUMERICAL SETPOINTS ...................................................... 1-3
O
ON-LOAD TESTING ............................................................. 8-56
ORDER CODES ...................................................................... 2-5
OUTPUT RELAYS
operation ............................................................................. 5-27
setpoints ....................................................................5-27
, 5-129
testing ................................................................................... 8-9
tests ...................................................................................... 8-4
OUTPUT STATUS INDICATORS ............................................ 4-3
OUTPUTS
analog ..................................................... 5-86, 5-87, 5-130, 8-38
SCR .................................................................................... 3-13
specifications ....................................................................... 2-11
OVERCURRENT
blocking ............................................................................... 5-24
directional ................................................................... 5-39
, 5-40
ground ................................................................................. 5-47
ground directional ....................................................... 5-50
, 5-51
ground instantaneous ........................................................... 5-49
ground time ......................................................................... 5-48
negative sequence directional..............................5-60
, 5-61, 8-24
negative sequence instantaneous ................................ 5-59
, 8-24
negative sequence time ............................................... 5-58
, 8-24
neutral ................................................................................. 5-42
neutral directional ...............................................5-45
, 5-47, 8-21
neutral instantaneous .................................................. 5-44
, 8-21
neutral time ................................................................ 5-43
, 8-20
phase directional........................................5-39
, 5-40, 5-42, 8-19
phase instantaneous ...........................................5-38
, 8-18, 8-19
phase time ..........................................................5-36
, 8-16, 8-18
sensitive ground directional .................................5-54
, 5-55, 8-24
sensitive ground instantaneous .................................... 5-53
, 8-24
sensitive ground time .................................................. 5-52
, 8-23
OVERFREQUENCY
logic diagram ....................................................................... 5-89
monitoring ........................................................................... 8-35
setpoints .............................................................................. 5-88
OVERVIEW ............................................................................. 2-1
OVERVOLTAGE
logic diagram ....................................................................... 5-66
protection scheme ................................................................ 8-27
setpoints .............................................................................. 5-66
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GE Feeder Management Relay 750 Specifications

General

Brand	GE
Model	Feeder Management Relay 750
Category	Protection Device
Language	English