Electrical Power System Device Numbers and Functions Flashcards
1
Q
12 ⭐
A
OVER-SPEED DEVICE
2
Q
13
A
SYNCHRONOUS-SPEED DEVICE
3
Q
14 ⭐
A
UNDER-SPEED DEVICE
4
Q
15
A
SPEED OR FREQUENCY MATCHING DEVICE
5
Q
21 ⭐
A
DISTANCE RELAY
6
Q
23
A
TEMPERATURE CONTROL DEVICE
7
Q
25
A
ELECTRICAL SYNCHRONISM OR SYNC CHECK DEVICE
8
Q
26 ⭐
A
APPARATUS THERMAL DEVICE (ARMORTISSEUR)
9
Q
27 ⭐
A
UNDERVOLATGE RELAY
10
Q
30
A
ANNUNCIATOR RELAY
11
Q
37
A
UNDERCURRENT OR UNDERPOWER RELAY
12
Q
38 ⭐
A
BEARING PROTECTIVE (TEMP) DEVICE
13
Q
40 ⭐
A
FIELD RELAY
14
Q
41 ⭐
A
FIELD CIRCUIT BREAKER DEVICE
15
Q
43 ⭐
A
MANUAL TRANSFER OR SELECTOR DEVICE
16
Q
46⭐
A
NEGATIVE PHASE SEQUENCE
17
Q
48⭐
A
INCOMPLETE SEQUENCE RELAY
18
Q
49⭐
A
MACHINE OR XFMR THERMAL RELAY
19
Q
50⭐
A
INSTANTANEOUS OVERCURRENT RELAY
20
Q
51⭐
A
AC TIME OVERCURRENT RELAY
