GE C60, Instruction Manual

Page: 273 / 682

GE Multilin C60 Breaker Protection System 5-137
5 SETTINGS 5.4 SYSTEM SETUP
5
• PMU 1 CURR TRIGGER PICKUP : This setting specifies the pickup threshold for the overcurrent trigger, in per unit of
the PMU source. A value of 1 pu is a nominal primary current. The comparator applies a 3% hysteresis.
• PMU 1 CURR TRIGGER PKP TIME : This setting can be used to filter out spurious conditions and avoid unnecessary
triggering of the recorder.
• PMU 1 CURR TRIGGER DPO TIME : This setting can be used to extend the trigger after the situation returned to nor-
mal. This setting is of particular importance when using the recorder in the forced mode (recording as long as the trig-
gering condition is asserted).
Figure 5–50: CURRENT TRIGGER SCHEME LOGIC
i) POWER TRIGGERING
PATH: SETTINGS

SYSTEM SETUP

PHASOR MEASUREMENT...

PMU 1(2) TRIGGERING

PMU 1(2) 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 between the three types of power. The trigger responds to
the single-phase and three-phase power signals of the phasor measurement unit (PMU) source.
• PMU 1 POWER TRIGGER ACTIVE : This setting specifies the pickup threshold for the active 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 secondary voltage,
the VT ratio and the nominal primary current. For the three-phase power, 1 pu is three times that for a single-phase
power. The comparator applies a 3% hysteresis.

PMU 1 POWER

TRIGGER
PMU 1 POWER TRIGGER
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
PMU 1 POWER TRIGGER
ACTIVE: 1.250 pu
Range: 0.250 to 3.000 pu in steps of 0.001
MESSAGE
PMU 1 POWER TRIGGER
REACTIVE: 1.250 pu
Range: 0.250 to 3.000 pu in steps of 0.001
MESSAGE
PMU 1 POWER TRIGGER
APPARENT: 1.250 pu
Range: 0.250 to 3.000 pu in steps of 0.001
MESSAGE
PMU 1 POWER TRIGGER
PKP TIME: 0.10 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 POWER TRIGGER
DPO TIME: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 PWR TRIG BLK:
Off
Range: FlexLogic operand
MESSAGE
PMU 1 POWER TRIGGER
TARGET: Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
PMU 1 POWER TRIGGER
EVENTS: Disabled
Range: Enabled, Disabled
SETTINGS
PMU 1 CURR TRIGGER
FUNCTION:
Enabled = 1
PMU 1 CURR TRIG BLK:
Off = 0
SETTINGS
PMU 1 SIGNAL
SOURCE:
AND
SETTINGS
PMU 1 CURR TRIGGER PICKUP:
RUN
SETTINGS
PMU 1 CURR TRIGGER DPO TIME:
t
DPO
FLEXLOGIC OPERAND
PMU 1 CURR TRIGGER
FLEXLOGIC OPERANDS
PMU 1 FREQ TRIGGER
PMU 1 VOLT TRIGGER
PMU 1 POWER TRIGGER
PMU 1 ROCOF TRIGGER
SETTING
PMU 1 USER TRIGGER:
Off = 0
OR
FLEXLOGIC OPERAND
PMU 1 TRIGGERED
to STAT bits of
the data frame
IA I > PICKUP
I > PICKUP
I > PICKUP
OR
IB
IC
847010A1.CDR
SETTINGS
PKP
t
0
PMU 1 CURR TRIGGER PKP TIME:
0