Siemens siprotec 7SA6 - Page 707

Technical Data
10-397SA6 Manual
C53000-G1176-C156
Initiation
Conditions
For circuit breaker failure protection single-pole tripping internal
three-pole tripping internal
single-pole tripping external
1
)
three-pole tripping external
1
)
three-pole tripping without current
1
)
1
) via binary inputs
Times Pick-up time approx. 7 ms with measured quantities
present prior to start,
approx. 20 ms after switch-on of
measured values
Drop-off time,internal approx. 12 ms for sinusoidal measured
values,
(overshoot time) approx
. 25 ms maximum
Delay times for all stages 0.00 s to 30.00 s;
∞ (steps 0.01 s)
Tolerance 1 % of the set value or 10 ms
End Fault
Protection
With trip command transmission
to the remote end
Delay times for all stages 0.00 s to 30.00 s;
∞ (steps 0.01 s)
Tolerance 1 % of the set value or 10 ms
Breaker Pole
Discrepancy
Monitoring
Initiation criterion not all poles are closed or open
Monitoring time 0.00 s to 30.00 s;
∞
(steps 0.01 s)
Tolerance 1 % of the set value or 10 ms