Siemens SIPROTEC 7SA522 Manual page 446

4 Technical Data
Times
Shortest trip time
Drop-off time
Stage timers
Time expiry tolerances
The set time is a pure delay time.
Emergency Operation
In case of measured voltage failure, e.g. voltage transformer mcb trip see Subsection 4.11 "Time Overcurrent Protec-
tion"
446
Approx. 17 ms (50 Hz) / 15 ms (60 Hz) with fast relay and
approx. 11 ms (50 Hz) / 10 ms (60 Hz) with high-speed relay
Approx. 30 ms
0.00 s to 30.00 s; ∞
for all zones; separate time setting
possibilities for single-phase and
multi-phase faults for the zones Z1,
Z2, and Z1B
1 % of setting value or 10 ms
Increments 0.01 s
7SA522 Manual
C53000-G1176-C155-3