GE N60 Instruction Manual page 247

5 SETTINGS
• PMU 1 POWER TRIGGER REACTIVE: This setting specifies the pickup threshold for the reactive power of the
source. For single-phase power, 1 pu is a product of 1 pu voltage and 1 pu current, or the product of nominal second-
ary voltage, the VT ratio and the nominal primary current. For the three-phase power, 1 pu is three times that for a sin-
gle-phase power. The comparator applies a 3% hysteresis.
• PMU 1 POWER TRIGGER APPARENT: This setting specifies the pickup threshold for the apparent power of the
source. For single-phase power, 1 pu is a product of 1 pu voltage and 1 pu current, or the product of nominal second-
ary voltage, the VT ratio and the nominal primary current. For the three-phase power, 1 pu is three times that for a sin-
gle-phase power. The comparator applies a 3% hysteresis.
• PMU 1 POWER TRIGGER PKP TIME: This setting can be used to filter out spurious conditions and avoid unneces-
sary triggering of the recorder.
• PMU 1 POWER TRIGGER DPO TIME: This setting can be used to extend the trigger after the situation returned to
normal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the
triggering condition is asserted).
j) DF/DT TRIGGERING

PATH: SETTINGS SYSTEM SETUP
 PMU 1 df/dt
 TRIGGER
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
MESSAGE
GE Multilin N60 Network Stability and Synchrophasor Measurement System
Figure 5–41: POWER TRIGGER SCHEME LOGIC

PHASOR MEASUREMENT...
PMU 1 df/dt TRIGGER
FUNCTION: Disabled
PMU 1 df/dt TRIGGER
RAISE: 0.25 Hz/s
PMU 1 df/dt TRIGGER
FALL: 0.25 Hz/s
PMU 1 df/dt TRIGGER
PKP TIME: 0.10 s
PMU 1 df/dt TRIGGER
DPO TIME: 1.00 s
PMU 1 df/dt TRG BLK:
Off
PMU 1 df/dt TRIGGER
TARGET: Self-Reset
PMU 1 df/dt TRIGGER
EVENTS: Disabled
 
PMU 1(6) TRIGGERING
Range: Enabled, Disabled
Range: 0.10 to 15.00 Hz/s in steps of 0.01
Range: 0.10 to 15.00 Hz/s in steps of 0.01
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
5.4 SYSTEM SETUP
PMU 1(6) df/dt TRIGGER
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