Schweitzer Engineering Laboratories SEL-311C - Figure 8.1 Plotted Breaker Maintenance Points for an Example Circuit Breaker

8.3
Date Code 20060320 Instruction Manual SEL-311C Relay
Breaker Monitor and Metering Functions
Breaker Monitor
Figure 8.1 Plotted Breaker Maintenance Points for an Example Circuit Breaker
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
123456789
50
40
30
20
10
.5
Number of Close/Open Operations
kA Interrupted per Operation