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
Содержание RELION REB670
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