GE Multilin
G30 Generator Protection System
5-113
5 SETTINGS
5.4 SYSTEM SETUP
5
h) DIFFERENTIAL AND RESTRAINT CURRENT CALCULATIONS
Differential and restraint currents are calculated as follows:
(EQ 5.19)
(EQ 5.20)
(EQ 5.21)
(EQ 5.22)
(EQ 5.23)
(EQ 5.24)
where
,
, and
are the phase differential currents and
,
, and
are the phase restraint currents.
Id
A
I
A
c
1
[ ]
I
A
c
2
[ ]
+
=
Id
B
I
B
c
1
[ ]
I
B
c
2
[ ]
+
=
Id
C
I
C
c
1
[ ]
I
C
c
2
[ ]
+
=
Ir
A
max
I
A
c
1
[ ]
I
A
c
2
[ ]
,
(
)
=
Ir
B
max
I
B
c
1
[ ]
I
B
c
2
[ ]
,
(
)
=
Ir
C
max
I
C
c
1
[ ]
I
C
c
2
[ ]
,
(
)
=
Id
A
Id
B
Id
C
Ir
A
Ir
B
Ir
C
Содержание G30
Страница 10: ...x G30 Generator Protection System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 G30 Generator Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 414: ...5 274 G30 Generator Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 456: ...8 2 G30 Generator Protection System GE Multilin 8 1 DIRECTIONAL PRINCIPLE 8 THEORY OF OPERATION 8 ...
Страница 470: ...9 14 G30 Generator Protection System GE Multilin 9 1 SETTING EXAMPLE 9 APPLICATION OF SETTINGS 9 ...
Страница 484: ...11 12 G30 Generator Protection System GE Multilin 11 6 DISPOSAL 11 MAINTENANCE 11 ...
Страница 512: ...A 28 G30 Generator Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 620: ...B 108 G30 Generator Protection System GE Multilin B 4 MEMORY MAPPING APPENDIX B B ...
Страница 666: ...E 10 G30 Generator Protection System GE Multilin E 1 IEC 60870 5 104 APPENDIX E E ...
Страница 678: ...F 12 G30 Generator Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 687: ...GE Multilin G30 Generator Protection System H 7 APPENDIX H H 2 ABBREVIATIONS H Z Impedance Zone ...