Protective Relaying Flashcards
1
Q
1
A
Master element
2
Q
2
A
Time delay starting or closing
3
Q
3
A
Checking or interlocking relay
4
Q
4
A
Master contactor
5
Q
5
A
Stopping device
6
Q
6
A
Starting circuit breaker
7
Q
7
A
Anode circuit breaker
8
Q
8
A
Control power disconnect device
9
Q
9
A
Reversing device
10
Q
10
A
Unit sequence switch
11
Q
11
A
Not used
12
Q
12
A
Overspeed device
13
Q
13
A
Synchronous speed device
14
Q
14
A
Under speed device
15
Q
15
A
Speed or frequency matching device
16
Q
16
A
Not used
17
Q
17
A
Shunting or discharge switch
18
Q
18
A
Accelerating or decelerating device
19
Q
19
A
Starting to running transition contactor
20
Q
20
A
Electrically operated valve
21
Q
21
A
Distance relay
22
Q
22
A
Equalizer circuit breaker
23
Q
23
A
Temperature control device
24
Q
24
A
Not used
