viii
745 Transformer Management Relay
GE Power Management
TABLE
OF
CONTENTS
k TARGET, OUTPUT CONTACT, & DISPLAY OPERATION .................. 10-20
l
BLOCKING FROM LOGIC INPUTS ...................................................... 10-20
10.6.3 INSTANTANEOUS DIFFERENTIAL PROTECTION ............................. 10-20
a MINIMUM PICKUP ................................................................................ 10-20
b OPERATING TIME ................................................................................ 10-20
c TARGET, OUTPUT CONTACT, & DISPLAY OPERATION .................. 10-21
d BLOCKING FROM LOGIC INPUTS ...................................................... 10-21
10.6.4 PHASE TIME OVERCURRENT ............................................................ 10-21
a WINDING #1 ELEMENTS...................................................................... 10-21
b PICKUP LEVEL ..................................................................................... 10-22
c OPERATING TIME ................................................................................ 10-22
d RESET TIME ......................................................................................... 10-22
e PHASE B AND C ELEMENTS ............................................................... 10-22
f
WINDING #2 AND #3 ELEMENTS ........................................................ 10-23
10.6.5 PHASE INSTANTANEOUS OVERCURRENT 1 ................................... 10-23
a WINDING #1 ELEMENTS...................................................................... 10-23
b PICKUP LEVEL ..................................................................................... 10-23
c OPERATING TIME ................................................................................ 10-23
d PHASE B AND C ELEMENTS ............................................................... 10-23
e WINDING #2 AND #3 ELEMENTS ........................................................ 10-24
10.6.6 PHASE INSTANTANEOUS OVERCURRENT 2 ................................... 10-24
10.6.7 NEUTRAL TIME OVERCURRENT ........................................................ 10-24
a WINDING #1 ELEMENT ........................................................................ 10-24
b PICKUP LEVEL ..................................................................................... 10-24
c OPERATING TIME ................................................................................ 10-25
d RESET TIME ......................................................................................... 10-25
e WINDING #2 OR WINDING #3 ELEMENTS ......................................... 10-25
10.6.8 NEUTRAL INSTANTANEOUS OVERCURRENT 1 ............................... 10-26
a WINDING #1 ELEMENT ........................................................................ 10-26
b PICKUP LEVEL ..................................................................................... 10-26
c OPERATING TIME ................................................................................ 10-26
d WINDING 2 AND 3 ELEMENTS ............................................................ 10-26
10.6.9 NEUTRAL INSTANTANEOUS OVERCURRENT 2 ............................... 10-27
10.6.10 GROUND TIME OVERCURRENT......................................................... 10-27
a WINDING 1 ELEMENT .......................................................................... 10-27
b PICKUP LEVEL ..................................................................................... 10-27
c OPERATING TIME ................................................................................ 10-28
d RESET TIME ......................................................................................... 10-28
e WINDING 2 OR 3 ELEMENTS .............................................................. 10-28
10.6.11 GROUND INSTANTANEOUS OVERCURRENT 1................................ 10-28
a WINDING 1 ELEMENT .......................................................................... 10-28
b PICKUP LEVEL ..................................................................................... 10-29
c OPERATING TIME ................................................................................ 10-29
d WINDING 2 OR ELEMENT.................................................................... 10-29
10.6.12 GROUND INSTANTANEOUS OVERCURRENT 2................................ 10-29
10.6.13 RESTRICTED GROUND FAULT........................................................... 10-30
a WINDING #1 ELEMENT ........................................................................ 10-30
b PICKUP LEVEL ..................................................................................... 10-30
c OPERATING TIME ................................................................................ 10-31
d SLOPE ................................................................................................... 10-31
e WINDING 2 OR 3 ELEMENTS .............................................................. 10-31
10.6.14 NEGATIVE SEQUENCE TIME OVERCURRENT ................................. 10-31
a WINDING #1 ELEMENT ........................................................................ 10-31
b PICKUP LEVEL ..................................................................................... 10-32
c OPERATING TIME ................................................................................ 10-32
d RESET TIME ......................................................................................... 10-33
e WINDINGS 2 AND 3 ELEMENTS.......................................................... 10-33
10.6.15 NEGATIVE SEQUENCE INSTANTANEOUS OVERCURRENT ........... 10-33
a WINDING 1 ELEMENT .......................................................................... 10-33
b PICKUP LEVEL ..................................................................................... 10-33
c OPERATING TIME ................................................................................ 10-34
d WINDING 2 AND 3 ELEMENTS ............................................................ 10-34
10.6.16 FREQUENCY ELEMENTS .................................................................... 10-34
Summary of Contents for 745 TRANSFORMER MANAGEMENT RELAY
Page 30: ...2 8 745 Transformer Management Relay GE Power Management 2 3 SECURITY 2 GETTING STARTED 2 ...
Page 210: ...7 36 745 Transformer Management Relay GE Power Management 7 2 BLOCK DIAGRAMS 7 SCHEME LOGIC 7 ...
Page 322: ...9 12 745 Transformer Management Relay GE Power Management 9 3 USING 745PC 9 745 PC SOFTWARE 9 ...
Page 396: ...A 4 745 Transformer Management Relay GE Power Management A 1 FIGURES AND TABLES APPENDIXA A ...
Page 400: ...C 2 745 Transformer Management Relay GE Power Management C 1 WARRANTY INFORMATION APPENDIXC C ...
Page 406: ...vi 745 Transformer Management Relay GE Power Management ...
Page 407: ...GE Power Management 745 Transformer Management Relay NOTES ...
