GE D90 Plus Instruction Manual page 511

CHAPTER 11: METERING
PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
PMU 1 ROCOF TRIGGER...........................Asserted when the rate of change of frequency trigger of
PMU 1 VOLT TRIGGER ...............................Asserted when the abnormal voltage trigger of phasor
PMU 1 TRIGGERED.....................................Asserted when the phasor measurement unit 1 triggers. No
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
phasor measurement unit 1 operates.
measurement unit 1 operates.
events or targets are generated by this operand.
the present time is before the scheduled one-shot time.
SHARED OPERANDS
503