Siemens Siprotec 5 7SS85 Techical Data page 53

Dropout time for 2 ≤ I/threshold value I ≤ 0.90
Influencing Variables for Thresholds
Transient excess pickup in method of measurement =
fundamental component, for τ > 100 ms (with
complete unbalance)
SIPROTEC 5, Low-Impedance Busbar Protection 7SS85, Manual
C53000-G5040-C019-6, Edition 06.2016
11.18 Stage with Inverse-Time Characteristic Curve
5 % of the reference (calculated) value
+2 % current tolerance or 30 ms
< 5 %
Technical Data
597