ABB RET630 - Circuit Breaker Failure Protection

Table 65. 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 66. 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
Transformer Protection and Control 1MRS756788 A
RET630
Product version: 1.0 Issued: 15.09.2009
ABB 45