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I.L 40-100J
R
ANGE
TAP
RATING
(AMPERES)
0.5
2.7
0.6
3.1
0.8
3.7
0.5/2.5
1.0
4.1
1.5
5.7
2.0
6.8
2.5
7.7
1.0
4.5
1.2
5.5
1.5
6.0
2.0
7.7
2.5
9.5
3.0
10.0
1/12
3.5
12.0
4.0
13.5
5.0
15.0
6.0
17.5
7.0
20.5
8.0
22.5
10.0
23.5
12.0
26.5
0.5
2.7
0.6
3.1
0.8
3.7
0.5/2.5
1.0
4.1
1.5
5.7
2.0
6.8
2.5
7.7
1.0
4.5
1.2
5.5
1.5
6.0
2.0
7.7
2.5
9.5
3.0
10.0
1/12
3.5
12.0
4.0
13.5
5.0
15.0
6.0
17.5
7.0
20.5
8.0
22.5
10.0
23.5
12.0
26.5
Thermal capacities for short times other than one second may be calculated on the basis of time being inversely proportional to the
square of the current.
øDegrees current lags voltage at tap value current
* * Voltages taken with Tectox type voltmeter
10
Courtesy of NationalSwitchgear.com
ENERGY REQUIREMENTS
CO-5 LONG TIME AND CO-6 DEFINITE MINIMUM TIME RELAYS
RATING
FACTOR
(AMPERES)
ANGLE ø
88
69
88
68
88
67
88
66
88
62
88
60
88
58
88
69
88
68
88
67
88
66
88
65
230
65
230
65
230
64
230
61
460
60
460
57
460
53
460
48
460
42
CO-7 MODERATELY INVERSE TIME RELAY
88
68
88
67
88
66
88
64
88
61
88
58
88
56
88
68
88
67
88
66
88
65
88
64
230
63
230
63
230
63
230
60
460
58
460
54
460
50
460
46
460
42
60 HERTZ VOLT AMPERES**(x
AT
AT 3 TIMES
TAP VALUE
TAP VALUE
CURRENT
CURRENT
∆
∆
(
= 0.86)
(
= 0.88)
3.93
20.6
3.96
20.7
3.96
21
4.07
21.4
4.19
23.2
4.30
24.9
4.37
26.2
3.98
21.0
3.98
21.3
4.00
21.8
3.98
21.9
3.98
22.2
4.02
22.5
4.06
23.2
4.12
23.5
4.18
24.6
4.35
25.8
4.44
27.0
4.54
28.6
4.80
32.5
5.34
37.9
3.88
20.7
3.93
20.9
3.93
21.1
4.00
21.6
4.08
22.9
4.24
24.8
4.38
25.9
3.86
20.6
3.82
20.4
3.92
21.2
3.90
21.8
3.90
21.8
3.92
22.5
3.97
22.7
4.02
22.9
4.11
24.1
4.29
25.5
4.43
27.3
4.50
30.8
4.81
32.6
5.04
36.9
∆
FOR 50 HZ)
AT 10 TIMES
AT 20 TIMES
TAP VALUE
TAP VALUE
CURRENT
CURRENT
∆
∆
(
= 0.9)
(
= 0.91)
103
270
106
288
114
325
122
360
147
462
168
548
180
630
100
265
103
282
109
308
115
340
122
363
125
366
132
402
137
420
150
500
165
570
185
630
211
736
266
940
325
1152
103
278
107
288
114
320
122
356
148
459
174
552
185
640
100
265
104
270
110
300
117
312
123
360
127
390
131
413
136
420
153
490
165
528
189
630
206
732
250
970
342
1224
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