Table 12-5 Peak Overvoltage Inverse-Time Characteristic (for Threshold Setting 1.1)
Measurand Û/V
c,rated
Time Delay Curve Point According to
<1.15 ∞ (no pickup) Siemens definition
1.15 1800.00 s IEC 60871-1:2005
1.2 300.00 s IEC 60871-1:2005
1.3 60.00 s IEC 60871-1:2005, IEEE Std 1036-2010
1.4 15.00 s IEEE Std 1036-2010
1.7 1.00 s IEEE Std 1036-2010
2 0.25 s IEEE Std 1036-2010
2.2 0.1 s IEEE Std 1036-2010
>2.2 0.01 s IEEE Std 1036-2010
Times
Pickup time
Approx. 35 ms + OOT at 50 Hz
1
Approx. 25 ms + OOT at 60 Hz
1
Dropout Time Depending on settings
1
OOT (Output Operating Time) additional delay of the output medium used, for example, 5 ms with fast
relays
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
Tolerances
Peak overvoltage
(33 % harmonics, with reference to fundamental component)
Up to 30th harmonic
Up to 50th harmonic, f
rated
= 50 Hz
Up to 50th harmonic, f
rated
= 60 Hz
1 % of the setting value or 0.005 p.u. (f
rated
± 10%)
3 % of the setting value or 0.02 p.u. (f
rated
± 10%)
4 % of the setting value or 0.02 p.u. (f
rated
± 10%)
Time delays
Measured value of inverse-time stage 5 % of the setting value +1 % of the measured value
or 30 ms
Measured value of definite-time stage 1 % of the setting value or 10 ms
Down integration time 5 % of the setting value or 30 ms
Technical Data
12.34 Peak Overvoltage Protection for Capacitors
1516 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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