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10 Cards in this Set
- Front
- Back
1 |
Master element |
|
2 |
Time delay starting or closing relay |
|
3 |
Checking or interlocking relay |
|
4 |
Master contactor |
|
5 |
Stopping device |
|
6 |
Starting circuit breaker |
|
7 |
Rate of change relay |
|
8 |
Conttol power disconnecting device |
|
9 |
Reversing device |
|
10 |
Unit sequence switch |