DWR Ansi Device No. San Joaquin Protective Relay Flashcards
1
Q
48
A
Incomplete Sequence Relay
2
Q
46
A
Reverse -phase or phase balance
3
Q
43
A
Manual Transfer or Selector device
4
Q
41
A
Field Circuit Breaker
5
Q
40
A
Field Relay
6
Q
38
A
Bearing Protective device
7
Q
33
A
Position Switch
8
Q
27
A
Undervoltage
9
Q
26
A
Apparatus thermal device
10
Q
21
A
Distance Relay
11
Q
20
A
Solenoid valve
12
Q
14
A
Under-speed device
13
Q
13
A
Synchronous-speed device
14
Q
3
A
Checking or Interlocking relay
15
Q
94
A
Tripping or trip-free relay
16
Q
90
A
Regulating device
17
Q
89
A
Line Switch
18
Q
87
A
Differential Protective Relay
19
Q
86
A
Locking-Out Relay
20
Q
81
A
Frequency Relay
21
Q
80
A
Flow Switch
22
Q
72
A
DC circuit breaker
23
Q
71
A
Level Switch
24
Q
70
A
Rheostat
25
64
Ground protective relay
26
63
Pressure Switch
27
62
Time-delay stopping/opening
28
59
Overvoltage Relay
29
56
Field application relay
30
55
Power Factor Relay
31
52
AC circuit Breaker
32
51
AC time overcurrent relay
33
50
Instantaneous overcurrent
34
49
Machine or transformer thermal relay
