GE N60 Instruction Manual page 319

CHAPTER 5: SETTINGS
This element responds to elevated current. The trigger responds to the phase current signal of the Phasor Measurement
Unit (PMU) source. All current channel (A, B, and C) are processed independently and can trigger the recorder.
— Specifies the pickup threshold for the overcurrent trigger, in per unit of the PMU source. A
PMU 1 CURR TRIGGER PICKUP
value of 1 pu is a nominal primary current. The comparator applies a 3% hysteresis.
PMU 1 CURR TRIGGER PKP TIME
PMU 1 CURR TRIGGER DPO TIME
importance when using the recorder in the forced mode (recording as long as the triggering condition is asserted).
5.5.7.16 Power triggering
SETTINGS  SYSTEM SETUP  PHASOR MEASUREMENT UNIT  PHASOR MEASUREMENT UNIT 1(6)  PMU 1(6)
TRIGGERING  PMU 1(6) POWER TRIGGER
 PMU 1 POWER
 TRIGGER
This element responds to abnormal power. Separate thresholds are provided for active, reactive, and apparent powers. In
terms of signaling its operation, the element does not differentiate among the three types of power. The trigger responds
to the single-phase and three-phase power signals of the Phasor Measurement Unit (PMU) source.
N60 NETWORK STABILITY AND SYNCHROPHASOR MEASUREMENT SYSTEM – INSTRUCTION MANUAL
PMU 1 CURR TRIGGER

EVENTS: Disabled
— Use to filter out spurious conditions and avoid unnecessary triggering of the recorder.
— Use to extend the trigger after the situation returns to normal. This setting is of
Figure 5-83: Current trigger logic
PMU 1 POWER TRIGGER

FUNCTION: Disabled
PMU 1 POWER TRIGGER

ACTIVE: 1.250 pu
PMU 1 POWER TRIGGER

REACTIVE: 1.250 pu
PMU 1 POWER TRIGGER

APPARENT: 1.250 pu
PMU 1 POWER TRIGGER

PKP TIME: 0.10 s
PMU 1 POWER TRIGGER

DPO TIME: 1.00 s
PMU 1 PWR TRIG BLK:

Off
PMU 1 POWER TRIGGER

TARGET: Self-reset
PMU 1 POWER TRIGGER

EVENTS: Disabled
Range: Enabled, Disabled
Range: Enabled, Disabled
Range: 0.250 to 3.000 pu in steps of 0.001
Range: 0.250 to 3.000 pu in steps of 0.001
Range: 0.250 to 3.000 pu in steps of 0.001
Range: 0.00 to 600.00 s in steps of 0.01
Range: 0.00 to 600.00 s in steps of 0.01
Range: FlexLogic operand
Range: Self-reset, Latched, Disabled
Range: Enabled, Disabled
SYSTEM SETUP
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