5-108
L30 Line Current Differential System
GE Multilin
5.4 SYSTEM SETUP
5 SETTINGS
5
•
PMU 1 FREQ TRIGGER PKP TIME
: This setting could be used to filter out spurious conditions and avoid unnecessary
triggering of the recorder.
•
PMU 1 FREQ TRIGGER DPO TIME
: This setting could 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).
Figure 5–42: FREQUENCY TRIGGER SCHEME LOGIC
g) VOLTAGE TRIGGERING
PATH: SETTINGS
SYSTEM SETUP
PHASOR MEASUREMENT...
PMU 1 TRIGGERING
PMU 1 VOLTAGE TRIGGER
This element responds to abnormal voltage. Separate thresholds are provided for low and high voltage. In terms of signal-
ing its operation, the element does not differentiate between the undervoltage and overvoltage events. The trigger
responds to the phase voltage signal of the phasor measurement unit (PMU) source. All voltage channels (A, B, and C or
AB, BC, and CA) are processed independently and could trigger the recorder. A minimum voltage supervision of 0.1 pu is
implemented to prevent pickup on a de-energized circuit, similarly to the undervoltage protection element.
•
PMU 1 VOLT TRIGGER LOW-VOLT
: This setting specifies the low threshold for the abnormal voltage trigger, in per-
unit of the PMU source. 1 pu is a nominal voltage value defined as the nominal secondary voltage times VT ratio. The
comparator applies a 3% hysteresis.
PMU 1 VOLTAGE
TRIGGER
PMU 1 VOLT TRIGGER
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
PMU 1 VOLT TRIGGER
LOW-VOLT: 0.800 pu
Range: 0.250 to 1.250 pu in steps of 0.001
MESSAGE
PMU 1 VOLT TRIGGER
HIGH-VOLT: 1.200 pu
Range: 0.750 to 1.750 pu in steps of 0.001
MESSAGE
PMU 1 VOLT TRIGGER
PKP TIME: 0.10 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 VOLT TRIGGER
DPO TIME: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 VOLT TRIG BLK:
Off
Range: FlexLogic™ operand
MESSAGE
PMU 1 VOLT TRIGGER
TARGET: Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
PMU 1 VOLT TRIGGER
EVENTS: Disabled
Range: Enabled, Disabled
Summary of Contents for L30
Page 10: ...x L30 Line Current Differential System GE Multilin TABLE OF CONTENTS ...
Page 30: ...1 20 L30 Line Current Differential System GE Multilin 1 5 USING THE RELAY 1 GETTING STARTED 1 ...
Page 370: ...5 244 L30 Line Current Differential System GE Multilin 5 10 TESTING 5 SETTINGS 5 ...
Page 464: ...A 10 L30 Line Current Differential System GE Multilin A 1 PARAMETER LISTS APPENDIX A A ...
Page 600: ...C 30 L30 Line Current Differential System GE Multilin C 7 LOGICAL NODES APPENDIX C C ...
Page 610: ...D 10 L30 Line Current Differential System GE Multilin D 1 IEC 60870 5 104 APPENDIX D D ...
Page 622: ...E 12 L30 Line Current Differential System GE Multilin E 2 DNP POINT LISTS APPENDIX E E ...
Page 634: ...F 12 L30 Line Current Differential System GE Multilin F 3 WARRANTY APPENDIX F F ...
Page 644: ...x L30 Line Current Differential System GE Multilin INDEX ...