Frequency Operating Range
0.9 ≤ f/f
rated
≤ 1.1
According to specified tolerances
10 Hz ≤ f < 0.9 f
rated
1.1 f
rated
< f ≤ 90 Hz
Slightly expanded tolerances
f < 10 Hz
f > 90 Hz
Active
Tolerances
Threshold values, dropout thresholds
2 % of the setting value or 1 % of the rated current
Times
1 % of the setting value or 10 ms
Technical Data
11.5 Circuit-Breaker Failure Protection 3-Pole
918
SIPROTEC 5, Low-Impedance Busbar Protection, Manual
C53000-G5040-C019-C, Edition 04.2021