GE Multilin
L30 Line Current Differential System
5-107
5 SETTINGS
5.4 SYSTEM SETUP
5
All five triggering functions and the user-definable condition are consolidated (ORed) and connected to the PMU recorder.
Each trigger can be programmed to log its operation into the event recorder, and to signal its operation via targets. The five
triggers drive the STAT bits of the data frame to inform the destination of the synchrophasor data regarding the cause of
trigger. The following convention is adopted to drive bits 11, 3, 2, 1, and 0 of the STAT word.
Figure 5–41: STAT BITS LOGIC
e) USER TRIGGERING
PATH: SETTINGS
SYSTEM SETUP
PHASOR MEASUREMENT...
PMU 1 TRIGGERING
PMU 1 USER TRIGGER
The user trigger allows customized triggering logic to be constructed from FlexLogic™. The entire triggering logic is
refreshed once every two power system cycles.
f) FREQUENCY TRIGGERING
PATH: SETTINGS
SYSTEM SETUP
PHASOR MEASUREMENT...
PMU 1 TRIGGERING
PMU 1 FREQUENCY TRIGGER
The trigger responds to the frequency signal of the phasor measurement unit (PMU) source. The frequency is calculated
from either phase voltages, auxiliary voltage, phase currents and ground current, in this hierarchy, depending on the source
configuration as per L30 standards. This element requires the frequency is above the minimum measurable value. If the
frequency is below this value, such as when the circuit is de-energized, the trigger will drop out.
•
PMU 1 FREQ TRIGGER LOW-FREQ
: This setting specifies the low threshold for the abnormal frequency trigger. The
comparator applies a 0.03 Hz hysteresis.
•
PMU 1 FREQ TRIGGER HIGH-FREQ
: This setting specifies the high threshold for the abnormal frequency trigger. The
comparator applies a 0.03 Hz hysteresis.
PMU 1 USER
TRIGGER
PMU1 USER TRIGGER:
Off
Range: FlexLogic™ operands
PMU 1 FREQUENCY
TRIGGER
PMU 1 FREQ TRIGGER
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
PMU 1 FREQ TRIGGER
LOW-FREQ: 49.00 Hz
Range: 20.00 to 70.00 Hz in steps of 0.01
MESSAGE
PMU 1 FREQ TRIGGER
HIGH-FREQ: 61.00 Hz
Range: 20.00 to 70.00 Hz in steps of 0.01
MESSAGE
PMU 1 FREQ TRIGGER
PKP TIME: 0.10 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 FREQ TRIGGER
DPO TIME: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 FREQ TRIG BLK:
Off
Range: FlexLogic™ operand
MESSAGE
PMU 1 FREQ TRIGGER
TARGET: Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
PMU 1 FREQ 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 ...