DEVICE #'S Flashcards
1
Q
3
A
CHECKING OR INTERLOCKING RELAY
2
Q
13
A
SYNCHRONOUS SPEED DEVICE
3
Q
14
A
UNDER-SPEED DEVICE
4
Q
20
A
ELECTRICALLY OPERATED VALVE
5
Q
21
A
DISTANCE RELAY
6
Q
26
A
APPARATUS THERMAL DEVICE
7
Q
27
A
UNDER VOLTAGE RELAY
8
Q
33
A
POSITION SWITCH
9
Q
38
A
BEARING PROTECTIVE RELAY
10
Q
40
A
FIELD RELAY
11
Q
41
A
FIELD CIRCUIT BREAKER
12
Q
43
A
MANUAL TRANSFER \ SELECTOR DEVICE
13
Q
46
A
REVERSE PHASE/PHASE BALANCE CURRENT RELAY
14
Q
48
A
INCOMPLETE SEQUENCE
15
Q
49
A
MACHINE/TRANSFORMER THERMAL RELAY
16
Q
50
A
INSTANTANEOUS OVERCURRENT
17
Q
51
A
AC TIME DELAY OVERCURRENT
18
Q
51V
A
AC TIME DELAY OVERCURRENT WITH A VOLTAGE RESTRAINT
19
Q
52
A
AC CIRCUIT BREAKER
20
Q
55
A
POWER FACTOR RELAY
21
Q
56
A
FIELD APPLICATION RELAY
22
Q
59
A
OVER VOLTAGE RELAY
23
Q
62
A
TIME DELAY STOPPING OR OPENING RELAY
24
Q
63
A
PRESSURE SWITCH
25
64
GROUND PROTECTIVE RELAY
26
70
RHEOSTAT
27
71
LEVEL SWITCH
28
72
DC CIRCUIT BREAKER
29
80
FLOW SWITCH
30
81
FREQUENCY RELAY
31
86
LOCK OUT RELAY
32
87
DIFFERENTIAL PROTECTIVE RELAY
33
89
LINE SWITCH
34
90
REGULATING DEVICE
35
94
TRIP FREE RELAY
36
LIST 5 DEVICES THAT OPERATE RELAYS?
CT'S,PT'S,RTD'S,PRESSURE AND FLOAT SWITCHES.
37
PROS AND CONS OF ELECTRICAL/MECHANICAL RELAYS
PROS-RELIABLE AND NOT TO SENSITIVE
CONS-ONLY GOOD FOR 1 DEVICE AND OBSOLETE
38
PROS AND CONS FOR SEL'S
PROS-SPEED AND MANY DEVICES
CONS-SPEED AND EXPENSIVE
39
WHAT 2 DEVICES OPERATE ELECTROMAGNET RELAYS?
CT'S AND PT'S
40
ON AN OPEN ENERGIZED CIRCUIT WHAT SHOULDN'T YOU DO?
A CONTINUITY TEST.
41
WHAT IS DWR'S PROTECTIVE RELAYING MAINTENANCE MANAGEMENT POLICY?
MM29
