Relay Numbers Flashcards
1
Q
21 relay
A
Distance Relay
2
Q
25 Relay
A
Synchronizing Relay
3
Q
27 Relay
A
Under-voltage Relay
4
Q
49 Relay
A
Thermal Relay
5
Q
50 Relay
A
Instantaneous Over-current Relay
6
Q
51
A
Time OverCurrent Relay
7
Q
52
A
Circuit Breaker
8
Q
59 Relay
A
OverVoltage Relay
9
Q
63
A
Pressure relay
10
Q
67 Relay
A
Directional OverCurrent relay
11
Q
78
A
Out of Step relay
12
Q
79
A
Re-closing relay
13
Q
81
A
Frequency Relay
14
Q
86
A
Lock-out Relay
15
Q
87
A
Differential relay
