M12353-1 v11
Table 37. 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% -
Operate time for current detection 20 ms typically -
Reset time for current detection 25 ms maximum -
Time delay for re-trip at 0 to 2 x I
set
(0.000-60.000) s ±0.2% or ±30 ms whichever is
greater
Time delay for back-up trip at 0 to 2 x I
set
(0.000-60.000) s ±0.2% or ±30 ms whichever is
greater
Time delay for back-up trip at multi-phase start at 0 to 2 x I
set
(0.000-60.000) s ±0.2% or ±35 ms whichever is
greater
Additional time delay for a second back-up trip at 0 to 2 x I
set
(0.000-60.000) s ±0.2% or ±35 ms whichever is
greater
Time delay for alarm for faulty circuit breaker (0.000-60.000) s ±0.2% or ±30 ms whichever is
greater
M12350-1 v11
Table 38. Stub protection STBPTOC
Function Range or value Accuracy
Operating current (5-2500)% of
IBase
±1.0% of I
r
at I ≤ I
r
±1.0% of I at I > I
r
Reset ratio > 95% at (50-2500)% of
IBase
-
Independent time delay at 0 to 2 x I
set
(0.000-60.000) s
±0.2% or ±30 ms whichever
is greater
Operate time, start at 0 to 2 x I
set
Min. = 10 ms
Max. = 20 ms
-
Reset time, start at 2 to 0 x I
set
Min. = 10 ms
Max. = 20 ms
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
M13279-1 v9
Table 39. Pole discordance protection CCPDSC
Function Range or value Accuracy
Operate current (0–100)% of
IBase
±1.0% of I
r
Independent time delay
between trip condition and trip
signal
(0.000-60.000) s ±0.2% or ± 25 ms whichever is greater
1MRK 511 361-BEN B
Bay control REC670 2.1 IEC
Product version: 2.1
ABB 53
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