5-112
L30 Line Current Differential System
GE Multilin
5.4 SYSTEM SETUP
5 SETTINGS
5
j) DF/DT TRIGGERING
PATH: SETTINGS
SYSTEM SETUP
PHASOR MEASUREMENT...
PMU 1 TRIGGERING
PMU 1 df/dt TRIGGER
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 3% 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 3% hysteresis.
•
PMU 1 df/dt TRIGGER PKP TIME
: This setting could be used to filter out spurious conditions and avoid unnecessary
triggering of the recorder.
•
PMU 1 df/dt 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 5–46: RATE OF CHANGE OF FREQUENCY TRIGGER SCHEME LOGIC
PMU 1 df/dt
TRIGGER
PMU 1 df/dt TRIGGER
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
PMU 1 df/dt TRIGGER
RAISE: 0.25 Hz/s
Range: 0.10 to 15.00 Hz/s in steps of 0.01
MESSAGE
PMU 1 df/dt TRIGGER
FALL: 0.25 Hz/s
Range: 0.10 to 15.00 Hz/s in steps of 0.01
MESSAGE
PMU 1 df/dt TRIGGER
PKP TIME: 0.10 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 df/dt TRIGGER
DPO TIME: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 df/dt TRG BLK:
Off
Range: FlexLogic operand
MESSAGE
PMU 1 df/dt TRIGGER
TARGET: Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
PMU 1 df/dt TRIGGER
EVENTS: Disabled
Range: Enabled, Disabled
SETTINGS
PMU 1 df/dt TRIGGER
FUNCTION:
Enabled = 1
PMU 1 df/dt TRG BLK:
Off = 0
SETTING
PMU 1 SIGNAL
SOURCE:
ROCOF, df/dt
AND
SETTINGS
PMU 1 df/dt TRIGGER RAISE:
PMU 1 df/dt TRIGGER FALL:
df/dt > RAISE
OR
–df/dt > FALL
RUN
SETTINGS
PMU 1 df/dt TRIGGER PKP TIME:
PMU 1 df/dt TRIGGER DPO TIME:
t
PKP
t
DPO
FLEXLOGIC OPERAND
PMU 1 ROCOF TRIGGER
FLEXLOGIC OPERANDS
PMU 1 VOLT TRIGGER
PMU 1 CURR TRIGGER
PMU 1 POWER TRIGGER
PMU 1 FREQ TRIGGER
SETTING
PMU 1 USER TRIGGER:
Off = 0
OR
FLEXLOGIC OPERAND
PMU 1 TRIGGERED
to STAT bits of
the data frame
847000A1.CDR
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 ...
