GE L90 Instruction Manual page 357

5 SETTINGS
From trip output logic sheet 1, 837025AG
PHASE A
PHASE B
PHASE C
AND
SETTING
Reverse Fault
AND
= Off
AND
From trip output logic
sheet 1, 837025AG
3P
OR
OR
FLEXLOGIC OPERANDS
Φ
OPEN POLE I< A
OR
OPEN POLE BKR A OP Φ
SETTING
Bkr Phase A Open
OR
= Off
FLEXLOGIC OPERANDS
OPEN POLE I< B Φ
OR
OPEN POLE BKR Φ B OP
SETTING
Bkr Phase B Open
OR
= Off
FLEXLOGIC OPERANDS
OPEN POLE I< B Φ
OR
OPEN POLE BKR Φ B OP
SETTING
Bkr Phase B Open
OR
= Off
SETTING
Trip Reclose Input 1
= Off
SETTING
OR
Trip Reclose Input 6
= Off
SETTINGS
Start Timer Z2Ph In1
= Off
Start Timer Z2Ph In2
OR
= Off
Start Timer Z2Gr In1
= Off
Start Timer Z2Gr In2 OR
= Off
From trip output
ENABLED
logic sheet 1,
837025AG
GE Multilin
SETTING
Trip Delay on Evolving Faults
OR
0
SETTING
Trip Delay on Evolving Faults
0
OR
SETTING
Trip Delay on Evolving Faults
0
OR
SETTING
Trip Seal-In Delay
AND
0
AND
SETTING
Trip Reset
Pole Curr OR Custom
CBaux OR Custom
Custom
Pole Curr OR Custom
CBaux OR Custom
Custom
Pole Curr OR Custom
CBaux OR Custom
Custom
AND
AND
Figure 5–123: TRIP OUTPUT SCHEME LOGIC (Sheet 2 of 2)
L90 Line Current Differential System
S
Latch
R
S
Latch
R
S
Latch
R
S
Latch
R
AND
XOR
TIMER
0
AND
AND
AND
AND
5.7 CONTROL ELEMENTS
FLEXLOGIC OPERAND
TRIP PHASE A
FLEXLOGIC OPERAND
TRIP PHASE B
FLEXLOGIC OPERAND
TRIP PHASE C
FLEXLOGIC OPERAND
TRIP 3-POLE
TRIP OUTPUT OP
OR
FLEXLOGIC OPERAND
TRIP 1-POLE
AND
FLEXLOGIC OPERAND
TRIP AR INIT 3-POLE
20 ms
to phase distance zone 2 logic
FLEXLOGIC OPERAND
TRIP Z2PH TMR INIT
to ground distance zone 2 logic
FLEXLOGIC OPERAND
TRIP Z2GR TMR INIT
837034A2.CDR
5-221
5