ABB REB670 - Breaker Failure Protection, Single Phase Version CCSRBRF; Breaker Failure Protection CCRBRF

Table 27. Breaker failure protection CCRBRF
Function Range or value Accuracy
Operate phase current (5-200)% of lBase ± 1.0% of I
r
at I £ I
r
± 1.0% of I at I > I
r
Reset ratio, phase current > 95% -
Operate residual current (2-200)% of lBase ± 1.0% of I
r
at I £ I
r
± 1.0% of I at I > I
r
Reset ratio, residual current > 95% -
Phase current level for blocking of contact function (5-200)% of lBase ± 1.0% of I
r
at I £ I
r
± 1.0% of I at I > I
r
Reset ratio > 95% -
Timers (0.000-60.000) s ± 0.5% ±10 ms
Operate time for current detection 10 ms typically -
Reset time for current detection 15 ms maximum -
Table 28. Breaker failure protection, single phase version CCSRBRF
Function Range or value Accuracy
Operate phase current (5-200)% of lBase ± 1.0% of I
r
at I £ I
r
± 1.0% of I at I > I
r
Reset ratio, phase current > 95% -
Phase current level for blocking of contact function (5-200)% of lBase ± 1.0% of I
r
at I £ I
r
± 1.0% of I at I > I
r
Reset ratio > 95% -
Timers (0.000-60.000) s ± 0.5% ± 10 ms
Operate time for current detection 10 ms typically -
Reset time for current detection 15 ms maximum -
Busbar protection REB670
1MRK505212-BEN E
Pre-configured
Product version: 1.2
40 ABB