Overvoltage Protection with Zero-Sequence Voltage/Residual
Voltage
Setting Values
Method of measurement RMS value
Fundamental component
Fundamental component over 2 cycle filters
Block. on measuring-voltage
outage
Yes
No
Determ. ph. aff. by grd. flt. Yes
No
Threshold value
31
0.300 V to 200.000 V Increments of 0.001 V
Time delay 0.00 s to 60.00 s Increments of 0.01 s
Pickup delay 0.00 s to 320.00 s Increments of 0.01 s
Dropout ratio 0.90 to 0.99 Increments of 0.01
V< faulted ph-gnd vltg. 0.300 V to 200 000 V Increments of 0.001 V
V> healthy ph-gnd. vltg. 0.300 V to 200 000 V Increments of 0.001 V
Times
Operate time with time delay = 0 ms
Standard filter, true RMS
Approx. 25 ms + OOT
32
at 50 Hz
Approx. 22 ms + OOT at 60 Hz
2 cycle filters Approx. 45 ms + OOT at 50 Hz
Approx. 39 ms + OOT at 60 Hz
Dropout time
Standard filter, true RMS Approx. 20 ms + OOT at 50 Hz
Approx. 16.6 ms + OOT at 60 Hz
2 cycle filters Approx. 31.06 ms + OOT at 50 Hz
Approx. 27.06 ms + OOT at 60 Hz
Frequency Operating Range
0.9 f/f
rated
to 1.1 f/f
rated
According to specified tolerances
10 Hz to 0.9 f/f
rated
1.1 f/f
rated
to 80 Hz
Slightly expanded tolerances
f < 10 Hz
f > 80 Hz
Active
Tolerances
Voltages
0.5 % of the setting value or 0.05 V
Time delays 1 % of the setting value or 10 ms
11.22
31
If you have selected the method of measurement = RMS value, do not set the threshold value under 10 V.
32
OOT (Output Operating Time) additional delay of the output medium used, see Chapter 11.1.4 Relay Outputs
Technical Data
11.22 Overvoltage Protection with Zero-Sequence Voltage/Residual Voltage
602 SIPROTEC 5, Low-Impedance Busbar Protection 7SS85, Manual
C53000-G5040-C019-6, Edition 06.2016
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