SIZE OF LT FUSES FOR DISTRIBUTION TRANSFORMERS

SIZE OF LT LEADS AND FUSES FOR DISTRIBUTION TRANSFORMERS.
Capacity of Transformer kVA
Full load Amps
Fuse wire S.W.G
Size of SC Aluminium LT Cable Area (Sq.mm)
Size of G.I.Pipe to be used. Dia. (mm)
Size of fuse units Amps.
11kV
433 V
11kV
433V
25
1.31
33.4
38
21
25

100
50
2.62
66.7
33
18                 or                   2 of 20
50
50
100
63
3.32
84.5
33.5
2 of 20
95

200
100
5.25
133.5
32
2 of 18       or                   2 of 16
185
75
200
200
10.5
267
26
2 of 15
2 Circuits
2 of 75
2 of 200 each

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