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41-116.1A
Continuous
Ampere
Rating
Range
Tap
(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
2
8
2.5
8.8
3
9.7
2/6
3.5
10.4
4
11.2
5
12.5
6
13.7
4
16
5
18.8
6
19.3
4/12
7
20.8
8
22.5
10
25
12
28
*
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.
Ø
Degrees current lags voltage at tap value current.
* *
Voltages taken with Rectox type voltmeter.
10
ENERGY REQUIREMENTS
COV-7 OVERCURRENTS UNITS
One Second
Power
Rating *
Factor
(Amperes)
Angle Ø
88
68
88
67
88
66
88
64
88
61
88
58
88
56
230
66
230
63
230
63
230
63
230
61
230
59
230
58
460
64
460
61
460
60
460
58
460
55
460
51
460
46
Volt Amperes * *
At
At 3 Times
Tap Value
Tap Value
Current
Current
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
4.06
21.3
4.07
21.8
4.14
22.5
4.09
23.1
4.34
23.8
4.40
25.2
4.62
27
4.24
22.8
4.30
24.2
4.62
25.9
4.69
27.3
4.80
29.8
5.20
33
5.40
37.5
At 10 Times
At 20 Times
Tap Value
Tap Value
Current
Current
103
278
107
288
114
320
122
356
148
459
174
552
185
640
111
306
120
342
129
366
136
417
149
448
163
530
183
624
129
392
149
460
168
540
187
626
211
688
260
860
308
1032
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