Table 48. Three-phase thermal overload protection, two time constants (T2PTTR) main settings
Parameter Function Value (Range) Step
Temperature rise T2PTTR 0.0...200.0°C 0.1
Max temperature T2PTTR 0.0...200.0°C 0.1
Operate temperature T2PTTR 80.0...120.0% 0.1
Short time constant T2PTTR 6...60000 s 1
Weighting factor p T2PTTR 0.00...1.00 0.01
Current reference T2PTTR 0.05...4.00 × I
n
0.01
Operation T2PTTR 1 = on
5 = off
-
Table 49. Circuit breaker failure protection (CCBRBRF)
Characteristic
Value
Operation accuracy Depending on the frequency of the measured current: f
n
±2 Hz
±1.5% of the set value or ±0.002 × I
n
Operate time accuracy ±1.0% of the set value or ±20 ms
Reset time Typically 40 ms
Retardation time <20 ms
Table 50. Circuit breaker failure protection (CCBRBRF) main settings
Parameter
Function Value (Range) Step
Current value CCBRBRF 0.05...2.00 × I
n
0.05
Current value Res CCBRBRF 0.05...2.00 × I
n
0.05
CB failure mode CCBRBRF 1 = Current
2 = Breaker status
3 = Both
-
CB fail trip mode CCBRBRF 1 = Off
2 = Without check
3 = Current check
-
Retrip time CCBRBRF 0...60000 ms 10
CB failure delay CCBRBRF 0...60000 ms 10
CB fault delay CCBRBRF 0...60000 ms 10
Capacitor Bank Protection and Control
1MRS757952 D
Product version: 5.0 FP1
ABB 35
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