GE 750, Instruction Manual

Page: 501 / 504

GE Power Management 750/760 Feeder Management Relay
ix
INDEX
TRIP DATA
last trip data .............................................................. 6-5
TRIP TIMES USER TABLE ........................................... 9-6
TYPICAL WIRING
description ................................................................ 3-5
diagram ..................................................................... 3-7
U
UNDERFREQUENCY
logic diagram .........................................................12-59
protection scheme ..................................................17-39
restoration .............................................................. 14-16
setpoints ................................................................12-58
UNDERFREQUENCY RESTORATION
control scheme ....................................................... 17-63
logic diagram .........................................................14-17
setpoints ................................................................14-16
UNDERVOLTAGE
inverse time curves ................................................ 12-50
inverse time delay characteristics ............................ 12-50
line ........................................................................ 12-52
protection elements ................................................ 12-49
restoration .............................................................. 14-14
UNDERVOLTAGE INVERSE TIME DELAY ................. 12-50
UNDERVOLTAGE RESTORATION
control scheme ....................................................... 17-60
logic diagram .........................................................14-15
setpoints ................................................................14-14
UPGRADING FIRMWARE ............................................ 4-7
USER INPUT FUNCTIONS SETPOINTS ..................... 10-6
USER MAP
accessing data ....................................................... 16-16
description .............................................................. 4-11
register addresses ..................................................16-17
values window ......................................................... 4-11
USER TEXT MESSAGES
adding ..................................................................... 8-11
setpoints ................................................................. 8-11
USING THIS MANUAL ................................................. 1-5
V
VARHOURS MEASUREMENT ................................... 17-15
VIEWING ACTUAL VALUES ......................................... 4-9
VIRTUAL INPUTS
actual values ............................................................. 6-4
testing ................................................................... 17-10
tests ........................................................................17-5
VOLTAGE
actual values ............................................................. 6-9
negative sequence ................................................. 12-47
synchronizing ...........................................................6-10
VOLTAGE TRANSFORMER
AC inputs .................................................................3-11
bus VT sensing ...................................................9-2, 9-3
failure ......................................................... 13-37, 17-48
line connections .......................................................3-11
setting example ......................................................... 2-5
VT FAILURE
logic diagram ......................................................... 13-38
monitoring .............................................................. 17-48
setpoints ................................................................ 13-37
VTs
see VOLTAGE TRANSFORMER
W
WARRANTY ................................................................ C-1
WATTHOURS MEASUREMENT ................................ 17-15
WAVEFORM CAPTURE
description ...................................................... 1-16, 4-11
graph attributes ........................................................4-12
window ....................................................................4-12
WET CONTACT CONNECTIONS .................................3-14
Z
ZERO SEQUENCE CT INSTALLATION ........................3-11