ABB REQ650 - Page 69

Table 34. Stub protection STBPTOC
Function Range or value Accuracy
Operating current (1-2500)% of IBase ± 1.0% of I
r
at I £ I
r
± 1.0% of I at I > I
r
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 35. Pole discordance protection CCRPLD
Function Range or value Accuracy
Operate value, current
asymmetry level
(0-100) % ± 1.0% of I
r
Reset ratio >95% -
Time delay (0.000-60.000) s ± 0.5% ± 25 ms
Table 36. Broken conductor check BRCPTOC
Function
Range or value Accuracy
Minimum phase current for operation (5–100)% of IBase ± 1.0% of I
r
Unbalance current operation (50-90)% of maximum current ± 2.0% of I
r
Timer (0.00-60.000) s ± 0.5% ± 25 ms
Operate time for start function 35 ms typically -
Reset time for start function 30 ms typically -
Critical impulse time 15 ms typically -
Impulse margin time 10 ms typically -
Table 37. Directional over/underpower protection GOPPDOP, GUPPDUP
Function
Range or value Accuracy
Power level (0.0–500.0)% of SBase ± 1.0% of S
r
at S < S
r
± 1.0% of S at S > S
r
(1.0-2.0)% of SBase < ± 50% of set value
(2.0-10)% of SBase < ± 20% of set value
Characteristic angle (-180.0–180.0) degrees 2 degrees
Timers (0.010 - 6000.000) s ± 0.5% ± 25 ms
Breaker protection REQ650 1MRK 505 283-BEN -
Product version: 1.2
ABB 69