GE Multilin
C60 Breaker Protection System
5-139
5 SETTINGS
5.4 SYSTEM SETUP
5
This element responds to frequency rate of change. Separate thresholds are provided for rising and dropping frequency.
The trigger responds to the rate of change of frequency (df/dt) of the phasor measurement unit (PMU) source.
•
PMU 1 df/dt TRIGGER RAISE
: This setting specifies the pickup threshold for the rate of change of frequency in the
raising direction (positive df/dt). The comparator applies a 4% hysteresis.
•
PMU 1 df/dt TRIGGER FALL
: This setting specifies the pickup threshold for the rate of change of frequency in the fall-
ing direction (negative df/dt). The comparator applies a 4% hysteresis.
•
PMU 1 df/dt TRIGGER PKP TIME
: This setting can be used to filter out spurious conditions and avoid unnecessary
triggering of the recorder.
•
PMU 1 df/dt TRIGGER DPO TIME
: This setting can be used to extend the trigger after the situation returned to nor-
mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig-
gering condition is asserted).
Содержание C60
Страница 10: ...x C60 Breaker Protection System GE Multilin TABLE OF CONTENTS ...
Страница 30: ...1 20 C60 Breaker Protection System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Страница 420: ...5 284 C60 Breaker Protection System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Страница 423: ...GE Multilin C60 Breaker Protection System 6 3 6 ACTUAL VALUES 6 1 OVERVIEW 6 FIRMWARE REVISIONS See page 6 28 ...
Страница 466: ...8 4 C60 Breaker Protection System GE Multilin 8 1 FAULT LOCATOR 8 THEORY OF OPERATION 8 ...
Страница 478: ...9 12 C60 Breaker Protection System GE Multilin 9 6 DISPOSAL 9 MAINTENANCE 9 ...
Страница 492: ...A 14 C60 Breaker Protection System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Страница 648: ...E 10 C60 Breaker Protection System GE Multilin E 1 OVERVIEW APPENDIX E E ...
Страница 660: ...F 12 C60 Breaker Protection System GE Multilin F 2 DNP POINT LISTS APPENDIX F F ...
Страница 670: ...H 8 C60 Breaker Protection System GE Multilin H 2 ABBREVIATIONS APPENDIX H H Z Impedance Zone ...
Страница 672: ...H 10 C60 Breaker Protection System GE Multilin H 3 WARRANTY APPENDIX H H ...
Страница 682: ...x C60 Breaker Protection System GE Multilin INDEX ...