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T Y P E CO CIRC U I T O P E N I N G R E LAY
CONTINUOUS
AMPERE
RATING
RANGE
TAP
(AMPERES)
0.5
0.91
0.6
0.96
0.8
1 . 18
1.0
1.37
0.5/2.5
1.5
1.95
2.0
2.24
2.5
2.50
2.0
3 . 1
2.5
4.0
3.0
4.4
2/6
3.5
4.8
4.0
5.2
5.0
5.6
6.0
6.0
4.0
7.3
5.0
8.0
6.0
8.8
7.0
4/ 1 2
9.6
8.0
10.4
10.0
1 1.2
12.0
12.0
[.
*
Thermal ca
acities for short times other than one s e c ond may be calc ulated on the basis of time be ing inversely proportional to the
s quare of t e current.
¢
Degrees current lags voltage at tap value current.
Voltages taken with R e ctox type voltmeter.
E NE R GY R E Q U I R EMENTS
T Y P E
C 0 - 2 R E L A Y
ONE SECOND
POWER
RATING*
FACTOR
(AMPERES)
ANGLE ¢
58
28
28
57
28
53
50
28
28
40
28
36
28
29
59
1 10
1 10
55
1 10
5 1
1 10
47
1 10
45
1 10
4 1
1 10
37
230
65
230
50
230
47
230
46
230
43
230
37
230
34
VOLT AMPERES* *
AT
3
TIMES
AT
TAP VALUE
TAP VALUE
CURRENT
CURRENT
39.6
4.8
4.9
39.8
5.0
42.7
45.4
5.3
6.2
54.4
7.2
65.4
7.9
73.6
5.04
38.7
5. 1 3
39.8
5.37
42.8
5.53
42.8
5.72
46.0
5.90
50.3
6.54
54.9
4.92
39. 1
5.20
42.0
5.34
44.1
5.35
45.8
5.86
49.9
55.5
6.6
7.00
62.3
10
AT
20
TIMES
AT
TIMES
TAP VALUE
TAP VALUE
CURRENT
CURRENT
256
790
270
851
1024
308
348
1220
435
1740
580
2280
700
2850
262
800
280
920
3 1 2
1008
329
1 1 20
360
1 2 1 6
420
1500
474
1800
268
848
305
1020
330
1 1 28
364
1260
1408
400
1720
470
528
2064
3
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