Siemens SIPROTEC easy 7SJ45 Manual page 77

Manual 7SJ45
Pickup times
Complete device pulse output
Complete device relay output
Tripping times when switching onto a fault
single phase supply (impulse output)
10000
t [ms]
1000
100
10
1 2 3 4
Figure 2-22 Maximum tripping time when switching onto a
fault, device with pulse output
C53000-K1174-C001-7
approx. 32 ms
approx. 38 ms
I [I ]
5 6 7 8 9 10
N
single phase supply (relay output)
1000
t [ms]
100
10
1 2 3 4
Figure 2-23 Maximum tripping time when switching onto a
fault, device with relay output
Figure 2-22 and Figure 2-23 show maximum values for
single-phase supply. Multi-phase supply will result in shorter
times.
Technical Data
I [I ]
5 6 7 8 9 10
N
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