Siemens SENTRON VL Series

Zone Selective Interlocking
5.2 Examples
3WL/3VL circuit breakers with communication capability - PROFIBUS
System Manual, 03/2011, A5E01051353-02
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5.2.2 Tabular representation
5.2.2.1 Short-circuit
Tabular representation from the perspective of the circuit breaker Q2:
Table 5- 1 Short-circuit
ZSI
ON / OFF
S ZSI-IN ZSI-OUT Delay time Time
OFF t
sd
300 ms
OFF X X t
sd
300 ms
ON X t
sd
300 ms
ON X X X t
sd
300 ms
ON t
ZSI
50 ms
ON X X t
ZSI
50 ms
5.2.2.2 Ground fault
Table 5- 2 Ground fault
ZSI
ON / OFF
GF ZSI-IN ZSI-OUT Delay time Time
OFF t
g
400 ms
OFF X X t
g
400 ms
ON X t
g
400 ms
ON X X X t
g
400 ms
ON t
ZSI
100 ms
ON X X t
ZSI
100 ms