GE UR Series L90 Instruction Manual page 454

Line current differential system
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5.7 CONTROL ELEMENTS
h) DIRECTIONAL COMPARISON UNBLOCKING

PATH: SETTINGS
CONTROL ELEMENTS
 DCUB SCHEME
5
5-316

PILOT SCHEMES
DCUB SCHEME
FUNCTION: Disabled
DCUB BLOCK:
MESSAGE
Off
DCUB PERMISSIVE
MESSAGE
ECHO: Disabled
DCUB ECHO COND:
MESSAGE
Off
GND DIR O/C FWD:
MESSAGE
Off
GND DIR O/C REV:
MESSAGE
Off
TRANS BLOCK PICKUP
MESSAGE
DELAY: 0.020 s
TRANS BLOCK RESET
MESSAGE
DELAY: 0.090 s
ECHO DURATION:
MESSAGE
0.100 s
ECHO LOCKOUT:
MESSAGE
0.250 s
LINE END OPEN PICKUP
MESSAGE
DELAY: 0.050 s
DCUB LOG PICKUP
MESSAGE
DELAY: 0.008 s
GUARD HEALTHY RESET
MESSAGE
DELAY: 0.150 s
DCUB LOG TRIP
MESSAGE
WINDOW: 0.150 s
DCUB SEAL-IN
MESSAGE
DELAY: 0.010 s
DCUB NO OF COMM
MESSAGE
BITS: 1
DCUB RX1:
MESSAGE
Off
DCUB LOG1:
MESSAGE
Off
DCUB RX2:
MESSAGE
Off
DCUB LOG2:
MESSAGE
Off
DCUB RX3:
MESSAGE
Off
L90 Line Current Differential System

DCUB SCHEME
Range: Disabled, Enabled
Range: FlexLogic operand
Range: Disabled, Enabled, Custom
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 0 to 65.535 s in steps of 0.001
Range: 1, 2, or 4
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
Range: FlexLogic operand
5 SETTINGS
GE Multilin

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