GE L90 Instruction Manual page 217

5 SETTINGS
IRIG-B FAILURE
DETECTED
SETTINGS
BLOCK GPS TIME REF:
Off = 0
IRIG-B SIGNAL TYPE:
None = 0
CHNL ASYM COMP:
Off = 0
DATA FROM REMOTE
TERMINAL 1
87L Ch 1 Status (OK=1)
87L GPS 1 Status (OK=1)
DATA FROM REMOTE
TERMINAL 2
87L Ch 2 Status (OK=1)
87L GPS 2 Status (OK=1)
Figure 5–16: CHANNEL ASYMMETRY COMPENSATION LOGIC
GE Multilin
FLEXLOGIC OPERAND
5 sec
87L DIFF PFLL FAIL
SETTINGS
MAX CHNL ASYMMETRY:
ROUND TRIP TIME
FLEXLOGIC OPERAND
CHANGE:
87L DIFF GPS 1 FAIL
RUN
Ch1 Asymmetry > MAX
ACTUAL VALUE
Ch1 Asymmetry
RUN
ACTUAL VALUE
Ch1 T-Time New -
Ch1 Round Trip Time
Ch1 T-Time Old >
CHANGE
FLEXLOGIC OPERAND
87L DIFF GPS 2 FAIL
RUN
ACTUAL VALUE Ch2 Asymmetry > MAX
Ch2 Asymmetry
RUN
ACTUAL VALUE
Ch2 T-Time New -
Ch2 Round Trip Time
Ch2 T-Time Old >
CHANGE
L90 Line Current Differential System
5.4 SYSTEM SETUP
0
To Remote Relays
Channel 1 and 2
87L GPS Status Fail
FLEXLOGIC OPERAND
87L DIFF GPS FAIL
GPS COMPENSATION
RUN
Use Calculated GPS
Correction
Update GPS Correction
Memory
Use Memorized GPS
Correction
Use GPS Correction
of Zero
FLEXLOGIC OPERAND
87L DIFF 1 MAX ASYM
5
FLEXLOGIC OPERAND
87L DIFF 1 TIME CHNG
FLEXLOGIC OPERAND
87L DIFF 2 MAX ASYM
FLEXLOGIC OPERAND
87L DIFF 2 TIME CHNG
831025A4.CDR
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