GE L90 Instruction Manual page 356

5.7 CONTROL ELEMENTS
SETTINGS
Trip Mode
= 3 Pole Only
= 3 Pole and 1 Pole
Trip Force 3-Pole
= Off
FLEXLOGIC OPERAND
OPEN POLE OP
FLEXLOGIC OPERAND
AR FORCE 3P TRIP
SETTING
Open Pole Mode
= Accelerated
FLEXLOGIC OPERAND
LINE PICKUP OP
FLEXLOGIC OPERANDS
POTT TRIP 3P
DUTT TRIP 3P
PUTT TRIP 3P
D60 only
HYBRID POTT TRIP 3P
DIR BLOCK TRIP 3P
DCUB TRIP 3P
L90 only
87L TRIP 3P OP
SETTING
Trip 3-Pole Input 1
= Off
SETTING
5
Trip 3-Pole Input 6
= Off
SETTING
Trip 1-Pole Input 1
= Off
SETTING
Trip 1-Pole Input 6
= Off
FLEXLOGIC OPERANDS
PHASE SELECT MULTI-P
PHASE SELECT VOID
PHASE SELECT AG
PHASE SELECT BG
PHASE SELECT CG
FLEXLOGIC OPERANDS
POTT TRIP A
DUTT TRIP A
PUTT TRIP A
D60 only HYBRID POTT TRIP A
DIR BLOCK TRIP A
DCUB TRIP A
L90 only 87L TRIP OP A
FLEXLOGIC OPERANDS
POTT TRIP B
DUTT TRIP B
PUTT TRIP B
D60 only HYBRID POTT TRIP B
DIR BLOCK TRIP B
DCUB TRIP B
L90 only 87L TRIP OP B
FLEXLOGIC OPERANDS
POTT TRIP C
DUTT TRIP C
PUTT TRIP C
D60 only HYBRID POTT TRIP C
DIR BLOCK TRIP C
DCUB TRIP C
L90 only 87L TRIP OP C
5-220
OR
2 cyc
0 AND
OR
AND
AND
AND
OR
AND
OR
AND
OR
OR
OR
OR
OR
Figure 5–122: TRIP OUTPUT SCHEME LOGIC (Sheet 1 of 2)
L90 Line Current Differential System
3P
OR
AND
AND
SETTING
TRIP PILOT
PRIORITY
AND
0
AND
0
AND
0
AND
0
OR
Only 1 of 3 can
be asserted
5 SETTINGS
FLEXLOGIC OPERAND
TRIP FORCE 3-POLE
To trip output
ENABLED logic sheet 2,
837034A2
OR
PHASE A
OR
PHASE B
OR
To trip output
logic sheet 2,
837034A2
PHASE C
OR
3P
837025AG.CDR
GE Multilin