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Westinghouse C0-2 Installation, Operation & Maintenance Instructions Manual page 49

Circuit opening overcurrent relay

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TY P E CO C I RCU I T O P E NI N G R E L AY
PERMANENT MAGNET ADJUSTMENT
TIME
DIAL
RELAY
POSITION
TYPE
C0-2
6
co-5
6
C0-6
6
0
C
-
6
7
CO-B
6
C0-
6
9
C0-
6
1 1
L For
cycle C0- 1 1 rel ay
50
TABLE 1
T I M E C U R V E C A L I B R A T IO N D A T A - 50 & 60 C Y C L E S
CURRENT
( MULTIPLES OF
TAP VALUE )
3
2
2
2
2
2
2
times operating time limits are
20
ELECTROMAGNET PLUGS
CURRENT
OPERATING
TIME
(MULTIPLES OF
TAP VALUE )
SECONDS
0.57
3 7. 8 0
2.46
4.27
13. 35
8.87
1 1 .27
+
10% , - 5 % .
0 . 2 4
OPERATING
TIME
SECOND S
2 0
0.22
1 0
14.30
2 0
1 . 19
20
1 . 1 1
20
1 . 1 1
{j,
2 0
0.65
2 0
0.24
1 7

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C0-5C0-6C0-7C0-8C0-9C0-11