Device Numbers 41-50 Flashcards
1
Q
41
A
Field Circuit Breaker, Contactor, or Switch
2
Q
42
A
Running circuit breaker, contactor or switch
3
Q
43
A
Transfer device
4
Q
44
A
Unit sequence starting contactor or relay
5
Q
45
A
DC overvoltage relay
6
Q
46
A
Reverse phase, phase balance, current or power rectifier misfire relay
7
Q
47
A
Single or reverse phase voltage relay
8
Q
48
A
Incomplete sequence relay
9
Q
49
A
AC thermal relay or device
10
Q
50
A
Short circuit selective relay or device
