Siemens 7SJ82 Manual page 1506

Technical Data
12.28 Differential Protection for Capacitor Banks
I-DIFF fast stage
Timer tolerance
[dwdifaus-030912-01.tif, 1, en_US]
Figure 12-17
Operating Times
Operate times for one-sided supply
I-DIFF stage, min
I-DIFF fast stage, min
I-DIFF unrestrained stage, min
Dropout time, approx.
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
117 Refer to protection functions, for example overcurrent protection
1506
Operate Curve of the Differential Protection
rated
0.00 s to 60.00 s Increments of 0.01 s
1 % of the setting value or 10 ms
50 Hz
23 ms + OOT
60 Hz
20 ms + OOT
50 Hz
8 ms + OOT
60 Hz
8 ms + OOT
50 Hz
8 ms + OOT
60 Hz
8 ms + OOT
50 Hz 29 ms
60 Hz 26 ms
According to specified tolerances
Slightly expanded tolerances
Active
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
117
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