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