Schweitzer Engineering Laboratories SEL-700G Series, Инструкция по эксплуатации

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5.17
Date Code 20170814 Instruction Manual SEL-700G Relay
Metering and Monitoring
Breaker Monitor
Figure 5.17 Plotted Breaker Maintenance Points for a 25 kV Circuit Breaker
The following settings are made from the breaker maintenance information in
Table 5.10 and Figure 5.17:
COSP1n =
10000
COSP2n =
150
COSP3n =
12
KASP1n =
1.20
KASP2n =
8.00
KASP3n =
20.00
Figure 5.18 shows the resultant breaker maintenance curve.
10,000
1000
2
3
4
5
6
7
8
9
100
2
3
4
5
6
7
8
9
10
2
3
4
5
6
7
8
9
1 2 3 4 5 6 7 8 9 50 40 30 20
10
.5
Number of Close/Open Operations
kA Interrupted per Operation