Siemens Siprotec 5 7SS85 Techical Data page 45

3I0 measured via I4
(33 % harmonics, in relation to fundamental component)
Up to 30th harmonic
Up to 50th harmonic, f
Up to 50th harmonic, f
Time delays
Influencing Variables for Thresholds
Transient excess pickup in method of measurement =
fundamental component, for τ > 100 ms (with
complete unbalance)
23 Slightly expanded tolerances will occur during the calculation of 3I0, maximum factor of 2
SIPROTEC 5, Low-Impedance Busbar Protection 7SS85, Manual
C53000-G5040-C019-6, Edition 06.2016
23 , method of measurement = RMS value
= 50 Hz
rated
= 60 Hz
rated
11.17 Stage with Definite-Time Characteristic Curve
1 % of the setting value or 5 mA (I
or 25 mA (I = 5 A), (f
rated rated
3 % of the setting value or 20 mA (I
or 100 mA (I = 5 A), (f
rated rated
4 % of the setting value or 20 mA (I
or 100 mA (I = 5 A), (f
rated rated
1 % of the setting value or 10 ms
< 5 %
Technical Data
= 1 A)
rated
± 10 %)
= 1 A)
rated
± 10 %)
= 1 A)
rated
± 10 %)
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