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Westinghouse C0-2 Installation, Operation & Maintenance Instructions Manual page 41

Circuit opening overcurrent relay

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TY P E CO CIRCUIT O P E NI N G R E LAY
6
5
(I)
0
:z:
8
3
UJ
en
1
0
1
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I
I
I
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3
2
1
1/2
3
2
MULT I PL ES
OF
Fig. 6 .
Typical Time C urves o f the Type C0-7 Relay.
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1 1
T I M E D I A L SETT I N G
1 0
e
7
6
5
e
1
e
TAP VALUE CU R R E N T
CU RV E
11 1 8 247
T I ME CU fl.V E S
C0 -7
T Y P I C A L
T Y P E
50 -60
O VE R CU R R E N T R E L AY
C Y C L ES
I
I
I
e 10
12
14
16 lB 20
9

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