GE L30 Instruction Manual page 226

5.4 SYSTEM SETUP
• 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 could be used to filter out spurious conditions and avoid unneces-
sary triggering of the recorder.
• PMU 1 POWER TRIGGER DPO TIME: This setting could 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).
SETTINGS
PMU 1 POWER
TRIGGER FUNCTION:
Enabled = 1
PMU 1 PWR TRIG BLK:
Off = 0
SETTINGS
PMU 1 SIGNAL SOURCE:
ACTIVE POWER, PA
ACTIVE POWER, PB
ACTIVE POWER, PC
3P ACTIVE POWER, P
5
REACTIVE POWER, QA
REACTIVE POWER, QB
REACTIVE POWER, QC
3P REACTIVE POWER, Q
APPARENT POWER, SA
APPARENT POWER, SB
APPARENT POWER, SC
3P APPARENT POWER, S
5-90
SETTINGS
PMU 1 POWER TRIGGER ACTIVE:
PMU 1 POWER TRIGGER REACTIVE:
PMU 1 POWER TRIGGER APPARENT:
RUN
abs(P) > ACTIVE PICKUP
abs(P) > ACTIVE PICKUP
abs(P) > ACTIVE PICKUP
abs(P) > 3*(ACTIVE PICKUP)
abs(Q) > REACTIVE PICKUP
abs(Q) > REACTIVE PICKUP
abs(Q) > REACTIVE PICKUP
abs(Q) > 3*(REACTIVE PICKUP)
S > APPARENT PICKUP
S > APPARENT PICKUP
S > APPARENT PICKUP
S > 3*(APPARENT PICKUP)
Figure 5–34: POWER TRIGGER SCHEME LOGIC
L30 Line Current Differential System
FLEXLOGIC OPERANDS
PMU 1 FREQ TRIGGER
PMU 1 VOLT TRIGGER
PMU 1 CURR TRIGGER
PMU 1 ROCOF TRIGGER
SETTING
PMU 1 USER TRIGGER:
Off = 0
SETTINGS
to STAT bits of
PMU 1 POWER TRIGGER PKP TIME:
the data frame
PMU 1 POWER TRIGGER DPO TIME:
t
PKP
t
DPO
5 SETTINGS
FLEXLOGIC OPERAND
PMU 1 TRIGGERED
FLEXLOGIC OPERAND
PMU 1 POWER TRIGGER
847003A1.CDR
GE Multilin