1
Q
01
A
Master Element
2
Q
02
A
Time delay starting/ closing relay
3
Q
03
A
Checking/interlocking relay
4
Q
04
A
Master contactor
5
Q
05
A
Stopping device
6
Q
06
A
Starting circuit breaker device
7
Q
07
A
Anode circuit breaker
8
Q
08
A
Control power disconnecting device
9
Q
09
A
Reversing device
10
Q
10
A
Unit sequence switch
11
Q
12
A
Over speed device
12
Q
13
A
Synchronous speed device
13
Q
14
A
Underspeed device
14
Q
15
A
Speed/frequency matching device
15
Q
17
A
Shunting/discharge switch
16
Q
18
A
Accelerating/decelerating device
17
Q
19
A
Starting to running transition contactor
18
Q
20
A
Electrically operated valve
19
Q
21
A
Distance relay
20
Q
22
A
Equalizer circuit breaker
21
Q
23
A
Temperature control device
22
Q
25
A
Synchronizing or synchronism check device
23
Q
26
A
Apparatus thermal device
24
Q
27
A
Undervoltage relay
25
28
Flame detector device
26
29
Isolating contactor
27
30
Annunciator relay
28
31
Separate excitation device
29
32
Directional power relay
30
33
Position switch
31
34
Master sequence device
32
35
Brush operating/slip ring short circuiting device
33
36
Polarity or polarizing voltage device
34
37
Undercurrent/underpower relay
35
38
Bearing protective device
36
39
Mechanical condition monitor
37
40
Field relay
38
41
Field circuit breaker
39
42
Running circuit breaker
40
43
Manual transfer or selector device
41
44
Unit sequence starting relay
42
45
Atmospheric condition monitor device
43
46
Reverse phase/ phase balance current relay
44
47
Phase sequence voltage
45
48
Incomplete sequence relay
46
49
Machine or transformer thermal relay
47
50
Instantaneous overcurrent/rate of rise relay
48
51
AC time overcurrent relay
49
52
AC circuit breaker
50
53
Exciter or DC generator relay
51
55
Power factor relay
52
56
Field application relay
53
57
Short circuiting/ grounding device
54
58
Rectification failure relay
55
59
Overvoltage relay
56
60
Voltage or current balance relay
57
62
Time delay stopping or opening relay
58
63
Pressure switch
59
64
Ground protective relay
60
65
Governor
61
66
Notching or jogging device
62
67
AC directional overcurrent relay
63
68
Blocking relay
64
69
Permissive control device
65
70
Rheostat
66
71
Level switch
67
72
DC circuit breaker
68
73
Load resistor contactor
69
74
Alarm relay
70
75
Position changing mechanism
71
76
DC overcurrent relay
72
77
Pulse transmitter
73
78
Phase angle measuring/out of step protective relay
74
79
AC reclosing relay
75
80
Flow switch
76
81
Frequency relay
77
82
DC reclosing relay
78
83
Automatic selective control/ transfer relay
79
84
Operating mechanism
80
85
Carrier or pilot wire receiver relay
81
86
Locking out relay
82
87
Differential protective relay
83
88
Auxiliary motor or motor generator
84
89
Line switch
85
90
Regulating device
86
91
Voltage directional relay
87
92
Voltage and power directional relay
88
93
Field changing contactor
89
94
Tripping or trip free relay
SJFDCLS
flashcards
Decks in class (23)
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