Siemens Siprotec 5 7SS85 - Zero-Crossing Supervision

Zero-Crossing Supervision
Times
Pickup time 32 ms for f
rated
= 50 Hz
27 ms for f
rated
= 60 Hz
Setting Values
Threshold for zero-crossing supervision 0.5 * I
diff
busbar section
11.12
Technical Data
11.12 Zero-Crossing Supervision
SIPROTEC 5, Low-Impedance Busbar Protection 7SS85, Manual 575
C53000-G5040-C019-6, Edition 06.2016