viii
750/760 Feeder Management Relay
GE Power Management
INDEX
structure ................................................................... 7-4
synchrocheck ...........................................................14-6
text ........................................................................... 2-4
trace memory ............................................................ 8-6
transfer functions ...................................................10-11
transfer scheme .....................................................14-18
trip counter ............................................................13-29
underfrequency ......................................................12-58
underfrequency restoration .....................................14-16
undervolta
e restoration .........................................14-14
user input functions ..................................................10-6
user text messa
es ..................................................8-11
VT failure ...............................................................13-37
SETPOINTS MESSAGES............................................. 7-1
SHIPPING CONTENTS ................................................ 1-5
SIGNAL PROCESSING OF AC CURRENT INPUTS......1-16
SIMULATION
setpoints ..................................................................15-5
setup .......................................................................15-6
SOFTWARE
enterin
setpoints...................................................... 4-8
installin
................................................................... 4-2
loadin
setpoints ......................................................4-10
overview ................................................................... 4-1
requirements............................................................. 4-1
savin
setpoints ........................................................ 4-9
up
radin
.................................................................. 4-2
up
radin
relay firmware ........................................... 4-7
Windows 3.1 considerations....................................... 4-1
SOLID STATE TRIP OUTPUT
see SCR OUTPUT
SPECIFICATIONS
clock........................................................................1-14
communications .......................................................1-14
control .....................................................................1-12
inputs ....................................................................... 1-7
measured parameters................................................ 1-8
monitorin
elements .................................................1-11
outputs ....................................................................1-14
physical ...................................................................1-14
protection elements ................................................... 1-9
technical ................................................................... 1-7
SR750/760PC
enterin
setpoints...................................................... 4-8
installin
................................................................... 4-2
requirements............................................................. 4-1
savin
setpoints ........................................................ 4-9
up
radin
.................................................................. 4-2
up
radin
firmware.................................................... 4-7
Windows 3.1 considerations....................................... 4-1
STABILIZING RESISTOR
calculatin
values...................................................12-39
restricted earth fault ...............................................12-37
STATUS INDICATORS ................................................ 5-2
SUMMARY OF FEATURES .......................................... 1-2
SUPERVISION
close coil .................................................................3-13
trip coil ....................................................................3-13
SYNCHROCHECK
control scheme.......................................................17-53
lo
ic dia
ram ...........................................................14-8
setpoints ..................................................................14-6
SYNCHRONIZING VOLTAGE......................................6-10
SYSTEM FREQUENCY.................................................9-4
T
TABLE LIST ................................................................ A-3
TECHNICAL SPECIFICATIONS ....................................1-7
TECHNICAL SUPPORT ACTUAL VALUES ..................6-23
TERMINAL ASSIGNMENTS ..........................................3-6
TERMINAL LAYOUT .....................................................3-5
TEST EQUIPMENT.....................................................17-3
TESTING
analo
outputs .........................................................15-4
breaker failure........................................................17-42
bus undervolta
e....................................................17-34
requirements............................................................17-1
safety precautions ....................................................17-2
setup .......................................................................17-4
simulation ................................................................15-5
specifications ...........................................................1-15
test equipment .........................................................17-3
wirin
dia
rams........................................................17-4
TEXT SETPOINTS........................................................2-4
THEORY OF OPERATION ..........................................1-16
THERMAL DEMAND CHARACTERISTIC .....................13-9
THRESHOLD, ANALOG ............................................13-19
TIME OVERCURRENT CURVES
see TOC CURVES and individual TOC curves indexed
alphabetically
TOC CURVES
ANSI........................................................................12-3
charactersitics..........................................................12-1
definite time .............................................................12-2
IAC..........................................................................12-4
IEC..........................................................................12-5
ran
e.......................................................................12-1
TRACE MEMORY
circular buffer.........................................................16-15
readin
..................................................................16-14
setpoints....................................................................8-6
TRANSFER FUNCTIONS SETPOINTS ......................10-11
TRANSFER SCHEME
associated elements...............................................14-20
bus tie breaker DC schematic .................................14-26
bus tie breaker lo
ic ...............................................14-29
description .............................................................17-64
incomer 1 DC schematic .........................................14-24
incomer 1 lo
ic dia
ram..........................................14-27
incomer 2 DC schematic .........................................14-25
incomer 2 lo
ic dia
ram..........................................14-28
one line dia
ram ....................................................14-23
setpoints................................................................14-18
TRANSFORMER POLARITY .........................................3-8
TRANSIENTS .............................................................1-16
TRIP COIL MONITORING .........................................17-48
TRIP COIL SUPERVISION
connection dia
ram ..................................................3-13
description ...............................................................3-13
TRIP COUNTER
actual values............................................................6-16
lo
ic dia
ram .........................................................13-30
setpoints................................................................13-29