GE L30 Instruction Manual page 256

5.4 SYSTEM SETUP
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.
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
5
 PMU 1 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
 PMU 1 FREQUENCY
 TRIGGER
5-120
Figure 5–43: STAT BITS LOGIC

PHASOR MEASUREMENT...
PMU1 USER TRIGGER:
Off

PHASOR MEASUREMENT...
PMU 1 FREQ TRIGGER
FUNCTION: Disabled
PMU 1 FREQ TRIGGER
MESSAGE
LOW-FREQ: 49.00 Hz
PMU 1 FREQ TRIGGER
MESSAGE
HIGH-FREQ: 61.00 Hz
PMU 1 FREQ TRIGGER
MESSAGE
PKP TIME: 0.10 s
PMU 1 FREQ TRIGGER
MESSAGE
DPO TIME: 1.00 s
PMU 1 FREQ TRIG BLK:
MESSAGE
Off
PMU 1 FREQ TRIGGER
MESSAGE
TARGET: Self-Reset
PMU 1 FREQ TRIGGER
MESSAGE
EVENTS: Disabled
L30 Line Current Differential System
 
PMU 1 TRIGGERING PMU 1 USER TRIGGER
Range: FlexLogic operands
 
PMU 1 TRIGGERING PMU 1 FREQUENCY TRIGGER
Range: Enabled, Disabled
Range: 20.00 to 70.00 Hz in steps of 0.01
Range: 20.00 to 70.00 Hz 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 SETTINGS
GE Multilin