I-DIFF fast stage 0.00 s to 60.00 s Increments of 0.01 s
Timer tolerance 1 % of the setting value or 10 ms
[dwdifaus-030912-01.tif, 1, en_US]
Figure 12-17
Operate Curve of the Differential Protection
Operating Times
Operate times for one-sided supply
I-DIFF stage, min 50 Hz
60 Hz
23 ms + OOT
117
20 ms + OOT
1)
I-DIFF fast stage, min 50 Hz
60 Hz
8 ms + OOT
1)
8 ms + OOT
1)
I-DIFF unrestrained stage, min 50 Hz
60 Hz
8 ms + OOT
1)
8 ms + OOT
1)
Dropout time, approx. 50 Hz
60 Hz
29 ms
26 ms
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 ≤ 80 Hz
Slightly expanded tolerances
f < 10 Hz
f > 80 Hz
Active
117
Refer to protection functions, for example overcurrent protection
Technical Data
12.28 Differential Protection for Capacitor Banks
1506 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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