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Table 67. Circuit breaker failure protection (CCBRBRF)
Characteristic
Value
Operation accuracy
At the frequency f = f
n
±1.5% of the set value or ±0.002 × I
n
Operate time accuracy
±1.0% of the set value or ±30 ms
Table 68. Circuit breaker failure protection (CCBRBRF) main settings
Parameter
Function
Value (Range)
Step
Current value
(Operating phase
current)
CCBRBRF
0.05...1.00 pu
0.05
Current value Res
(Operating residual
current)
CCBRBRF
0.05...1.00 pu
0.05
CB failure mode
(Operating mode of
function)
CCBRBRF
1=Current
2=Breaker status
3=Both
-
CB fail trip mode
CCBRBRF
1=Off
2=Without check
3=Current check
-
Retrip time
CCBRBRF
0.00...60.00 s
0.01
CB failure delay
CCBRBRF
0.00...60.00 s
0.01
CB fault delay
CCBRBRF
0.00...60.00 s
0.01
Feeder Protection and Control
1MRS756380 A
REF630
Product version: 1.0
Issued: 15.09.2009
ABB
47
Содержание REF630
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