GE L30

5-132 L30 Line Current Differential System GE Multilin
5.4 SYSTEM SETUP 5 SETTINGS
5
Figure 5–48: RATE OF CHANGE OF FREQUENCY TRIGGER SCHEME LOGIC
SETTINGS PMU 1 df/dt TRIGGER FUNCTION: Enabled = 1 PMU 1 df/dt TRG BLK: Off = 0 SETTING PMU 1 SIGNAL SOURCE: ROCOF, df/dt
SETTINGS PMU 1 df/dt TRIGGER RAISE: PMU 1 df/dt TRIGGER FALL:
df/dt > RAISE
OR
–df/dt > FALL
RUN
SETTINGS PMU 1 df/dt TRIGGER DPO TIME:
0
t
DPO
FLEXLOGIC OPERAND PMU 1 ROCOF TRIGGER
FLEXLOGIC OPERANDS PMU 1 VOLT TRIGGER PMU 1 CURR TRIGGER PMU 1 POWER TRIGGER PMU 1 FREQ TRIGGER SETTING PMU 1 USER TRIGGER: Off = 0
FLEXLOGIC OPERAND PMU 1 TRIGGERED
to STAT bits of the data frame
847012A1.CDR
AND
OR
SETTINGS PMU 1 df/dt TRIGGER PKP TIME:
t
PKP
0