GE C60, Instruction Manual

Page: 270 / 682

5-134 C60 Breaker Protection System GE Multilin
5.4 SYSTEM SETUP 5 SETTINGS
5
All five triggering functions and the user-definable condition are consolidated (ORed) and connected to the PMU recorder.
Each trigger can be programmed to log its operation into the event recorder, and to signal its operation via targets. The five
triggers drive the STAT bits of the data frame to inform the destination of the synchrophasor data regarding the cause of
trigger. The following convention is adopted to drive bits 11, 3, 2, 1, and 0 of the STAT word.
Figure 5–47: STAT BITS LOGIC
The trigger reset (drop-off) timer is available for all five triggering functions (FREQ, ROCOF, VOLT, CURR, POWER) in indi-
vidual trigger settings under the TRIGGER DPO TIME setting. This asserts individual trigger operand and overall PMU x
TRIGGERED operand with stat bits 3 and 11 for a fixed interval defined by this setting. If it is required that PMU x TRIG-
GERED operand with stat bits 3 and 11 stay longer than the individual reset timer, then use the PMU x USER TRIGGER
setting assigned with appropriate elements and FlexLogic. In short, in case of USER TRIGGER, the drop-off time needs to
be implemented using FlexLogic.
e) USER TRIGGERING
PATH: SETTINGS

SYSTEM SETUP

PHASOR MEASUREMENT...

PMU 1(2) TRIGGERING

PMU 1(2) USER TRIGGER
The user trigger allows customized triggering logic to be constructed from FlexLogic. The entire triggering logic is refreshed
once every two power system cycles.
f) FREQUENCY TRIGGERING
PATH: SETTINGS

SYSTEM SETUP

PHASOR MEASUREMENT...

PMU 1(2) TRIGGERING

PMU 1(2) FREQUENCY TRIG-
GER

PMU 1 USER

TRIGGER
PMU1 USER TRIGGER:
Off
Range: FlexLogic operands

PMU 1 FREQUENCY

TRIGGER
PMU 1 FREQ TRIGGER
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
PMU 1 FREQ TRIGGER
LOW-FREQ: 49.00 Hz
Range: 20.00 to 70.00 Hz in steps of 0.01
MESSAGE
PMU 1 FREQ TRIGGER
HIGH-FREQ: 61.00 Hz
Range: 20.00 to 70.00 Hz in steps of 0.01
MESSAGE
PMU 1 FREQ TRIGGER
PKP TIME: 0.10 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 FREQ TRIGGER
DPO TIME: 1.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
PMU 1 FREQ TRIG BLK:
Off
Range: FlexLogic operand
MESSAGE
PMU 1 FREQ TRIGGER
TARGET: Self-Reset
Range: Self-Reset, Latched, Disabled
MESSAGE
PMU 1 FREQ TRIGGER
EVENTS: Disabled
Range: Enabled, Disabled
8470004A2.CDR
bit 0
PMU 1 recorder
SETTING
Off = 0
User Trigger
FLEXLOGIC OPERANDS
PMU 1 FREQ TRIGGER
PMU 1 ROCOF TRIGGER
PMU 1 VOLT TRIGGER
PMU 1 CURR TRIGGER
PMU 1 POWER TRIGGER
OR
OR bit 1
bit 2
OR bit 3, bit 11
FLEXLOGIC OPERAND
PMU 1 TRIGGERED