1
Q
1
A
Master element
2
Q
4
A
Master contactor
3
Q
8
A
Control power disconnecting device
4
Q
21
A
Distance relay
5
Q
25
A
Synchronizing check device
6
Q
26
A
Apparatus thermal device
7
Q
27
A
under voltage relay
8
Q
33
A
Positions switch
9
Q
42
A
Running circuit breaker
10
Q
43
A
Manual transfer
11
Q
48
A
Incomplete sequence delay
12
Q
49
A
Transformer, thermal relay
13
Q
50
A
Instantaneous Overcurrent relay
14
Q
51
A
AC inverse time overcurrent relay
15
Q
52
A
AC circuit breakers
16
Q
59
A
Over voltage relay
17
Q
62
A
 time delay opening relay
18
Q
63
A
Pressure switch
19
Q
69
A
Permissive control device
20
Q
71
A
Liquid level
21
Q
74
A
Alarm relay
22
Q
79
A
reclosing relay
23
Q
84
A
Operating mechanism
24
Q
86
A
Lockout relay
25
87
Differential protective relay
26
88
Aux  motor
27
90
Regulating device
28
94
trip free relay
Safety Rules
flashcards
Decks in class (6)
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