ABB Relion 670 Series Product Manual page 45

Busbar protection REB670
Customized
Product version: 1.2
Table 31. Capacitor bank protection CBPGAPC
Function
Operate value, overcurrent
Reset ratio, overcurrent
Operate time, start
Reset time, start
Critical impulse time, overcurrent protection start
Impulse margin time, overcurrent protection start
Operate value, undercurrent
Reset ratio, undercurrent
Operate value, reconnection inhibit function
Operate value, reactive power overload function
Operate value, voltage protection function for harmonic overload
(Definite time)
Operate value, voltage protection function for harmonic overload
(Inverse time)
Inverse time characteristic
Maximum trip delay, harmonic overload IDMT
Minimum trip delay, harmonic overload IDMT
Timers
ABB
Range or value
(0-900)% of lBase
>95%
10 ms typically
30 ms typically
2 ms typically at 0.5 to.2xIset
1 ms typically at 0.5 to 10xIset
15 ms typically
(5-100)% of IBase
<105%
(4-1000)% of IBase
(5-900)%
(5-500)%
(80-200)%
According to IEC60871-1 (2005) and
IEEE/ANSI C37.99 (2000)
(0.05-6000.00) s
(0.05-60.00) s
(0.00-6000.00) s
1MRK505273-BEN D
Accuracy
± 1.0% of I at I < I
r r
± 1.0% of I at I > I
r
-
-
-
-
± 1.0% of I at I < I
r r
± 1.0% of I at I > I
r
-
± 1.0% of I at I < I
r r
± 1.0% of I at I > I
r
± 1.0% of Sr at S < S
r
± 1.0% of S at S > S
r
± 0.5% of U at U<U
r r
± 0.5% of U at U>U
r
± 0.5% of U at U<U
r r
± 0.5% of U at U>U
r
10% + 50 ms
± 0.5% ± 10 ms
± 0.5% ± 10 ms
± 0.5% ± 10 ms
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