GE D90 Plus Instruction Manual page 556

SHARED OPERANDS
546
PMU 1 FREQ TRIGGER ..............................Asserted when the abnormal frequency trigger of phasor
PMU 1 POWER TRIGGER .........................Asserted when the overpower trigger of phasor measurement
PMU 1 ROCOF TRIGGER ..........................Asserted when the rate of change of frequency trigger of
PMU 1 TRIGGERED.....................................Asserted when the phasor measurement unit 1 triggers. No
PMU 1 VOLT TRIGGER...............................Asserted when the abnormal voltage trigger of phasor
Phasor measurement unit one-shot operands
PMU ONE-SHOT EXPIRED.......................Asserted after the one-shot operation executes.
PMU ONE-SHOT OP...................................Asserted upon one-shot operation.
PMU ONE-SHOT PENDING .....................Asserted while the one-shot operation is pending. That is, while
measurement unit 1 operates.
unit 1 operates.
phasor measurement unit 1 operates.
events or targets are generated by this operand.
measurement unit 1 operates.
the present time is before the scheduled one-shot time.
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 11: METERING