Weak-Infeed Tripping - Siemens SIPROTEC 7SA6 Manual

Distance protection relay for all voltage levels
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Technical Data
10.7

Weak-Infeed Tripping

Operation method
Undervoltage
Detection
Times
10-28
Phase segregated undervoltage detection after reception of a carrier signal from the
remote end
Setting value
Drop-off to pick-up ratio
Pick-up tolerances
Release delay
Release prolongation
Time expiry tolerances
U
<
2 V to 70 V
PhE
approx. 1.05
≤ 5 % of set value or 0.5 V
0.00 s to 30.00 s
0.00 s to 30.00 s
1 % of set value or 10 ms
(steps 1 V)
(steps 0.01 s)
(steps 0.01 s)
7SA6 Manual
C53000-G1176-C156

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