ABB REC650 - Page 79

Table 30. Breaker failure protection, 3-phase activation and output CCRBRF (50BF)
Function Range or value Accuracy
Operate phase current (5-200)% of lBase ± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
Reset ratio, phase current > 95% -
Operate residual current (2-200)% of lBase ± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
Reset ratio, residual current > 95% -
Phase current pickup for blocking of
contact function
(5-200)% of lBase ± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
Reset ratio > 95% -
Timers (0.000-60.000) s ± 0.5% ±10 ms
Operate time for current detection 35 ms typically -
Reset time for current detection 10 ms maximum -
Table 31. Stub protection STBPTOC (50STB)
Function Range or value Accuracy
Operating current (1-2500)% of IBase ± 1.0% of I
n
at I £ I
n
± 1.0% of I at I > I
n
Reset ratio > 95% -
Operate time 20 ms typically at 0 to 2 x I
set
-
Reset time 30 ms typically at 2 to 0 x I
set
-
Critical impulse time 10 ms typically at 0 to 2 x I
set
-
Impulse margin time 15 ms typically -
Table 32. Pole discrepancy protection CCRPLD (52PD)
Function
Range or value Accuracy
Operate value, current
asymmetry level
(0-100) % ± 1.0% of I
n
Reset ratio >95% -
Time delay (0.000-60.000) s ± 0.5% ± 25 ms
Bay control REC650 ANSI 1MRK 511 265-BUS B
Product version: 1.2
ABB 79