GE L90 Instruction Manual page 370
L90 line current differential system ur series
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- Instruction manual (900 pages) ,
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- Instruction manual (470 pages)
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5.7 CONTROL ELEMENTS
c) BREAKER FLASHOVER
PATH: SETTINGS
CONTROL ELEMENTS
BREAKER
FLASHOVER 1
5
The detection of the breaker flashover is based on the following condition:
1.
Breaker open,
2.
Voltage drop measured from either side of the breaker during the flashover period,
3.
Voltage difference drop, and
4.
Measured flashover current through the breaker.
Furthermore, the scheme is applicable for cases where either one or two sets of three-phase voltages are available across
the breaker.
5-234
MONITORING ELEMENTS
BKR 1 FLSHOVR
FUNCTION: Disabled
BKR 1 FLSHOVR SIDE 1
MESSAGE
SRC: SRC 1
BKR 1 FLSHOVR SIDE 2
MESSAGE
SRC: None
BKR 1 STATUS CLSD A:
MESSAGE
Off
BKR 1 STATUS CLSD B:
MESSAGE
Off
BKR 1 STATUS CLSD C:
MESSAGE
Off
BKR 1 FLSHOVR V PKP:
MESSAGE
0.850 pu
BKR 1 FLSHOVR DIFF V
MESSAGE
PKP: 1000 V
BKR 1 FLSHOVR AMP
MESSAGE
PKP: 0.600 pu
BKR 1 FLSHOVR PKP
MESSAGE
DELAY: 0.100 s
BKR 1 FLSHOVR SPV A:
MESSAGE
Off
BKR 1 FLSHOVR SPV B:
MESSAGE
Off
BKR 1 FLSHOVR SPV C:
MESSAGE
Off
BKR 1 FLSHOVR BLOCK:
MESSAGE
Off
BKR 1 FLSHOVR
MESSAGE
TARGET: Self-reset
BKR 1 FLSHOVR
MESSAGE
EVENTS: Disabled
L90 Line Current Differential System
BREAKER FLASHOVER 1(4)
Range: Disabled, Enabled
Range: SRC 1, SRC 2, SRC 3, SRC 4
Range: None, SRC 1, SRC 2, SRC 3, SRC 4
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: 0.000 to 1.500 pu in steps of 0.001
Range: 0 to 100000 V in steps of 1
Range: 0.000 to 1.500 pu in steps of 0.001
Range: 0.000 to 65.535 s in steps of 0.001
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: FlexLogic™ operand
Range: Self-reset, Latched, Disabled
Range: Disabled, Enabled
5 SETTINGS
GE Multilin
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