Voltage-Differential Protection For Capacitors - Siemens 7SJ82 Manual

Technical Data

12.27 Voltage-Differential Protection for Capacitors

12.27 Voltage-Differential Protection for Capacitors
Setting Values (General Functionality)
Matching-factor setting
Voltage matching factor k
Setting Values (Protection Stage Vdiff>)
Threshold
Operate delay
Dropout
Dropout ratio for sec. threshold > 3 V
Dropout differential for sec. threshold 0.3 V to 3 V
Dropout ratio for sec. threshold 0.2 V to 0.3 V
Times
Operate time with time delay = 0 ms
Dropout time
Tolerances
Threshold ≥ 0.2 V
Time delays
Operating Range of the Secondary Differential Voltage
Operating Range of the secondary differential voltage ≥ 0.1 V (compensated)
Frequency Operating Range
0.9 ≤ f/f ≤ 1.1
rated
10 Hz ≤ f < 0.9 f
1.1 f < f ≤ 80 Hz
rated
f < 10 Hz
f > 80 Hz
116 Minimum secondary setting threshold = 0.2 V
1504
rated
not phase-selective
phase-selective
0.5000 to 2000.0000
0.005 p.u. to 1.000 p.u.
116
0.00 s to 60.00 s
95 %
150 mV
50 %
Approx. 30 ms + OOT (Output Operating Time)
at 50 Hz
Approx. 27 ms + OOT (Output Operating Time)
at 60 Hz
Approx. 20 ms + OOT (Output Operating Time)
at 50 Hz
Approx. 18 ms + OOT (Output Operating Time)
at 60 Hz
1 % of the setting value or 0.05 V (compensated)
1 % of the setting value or 10 ms
According to specified tolerances
Slightly expanded tolerances
Active
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Increments of 0.0001
Increments of 0.001 p.u.
Increments of 0.01 s