Fuse (Amp) Selection
for Protection of Transformer
|
transformer size in KVA
|
6.6KV
|
11KV
|
22KV
|
|
25
|
10
|
6
|
|
|
50
|
20
|
10
|
6
|
|
75
|
25
|
16
|
6
|
|
100
|
32
|
20
|
10
|
|
150
|
40
|
32
|
16
|
|
200
|
50
|
32
|
20
|
|
250
|
63
|
40
|
25
|
|
315
|
63
|
50
|
32
|
|
400
|
80
|
63
|
32
|
|
500
|
100
|
63
|
40
|
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Good information shared regarding the protection of transformer.
ReplyDeletePower Transformers in India | Transformer Manufacturer in India
How did you select Fuse for protection of transformer?
ReplyDeleteDid you consider any formula?? If yes, then please post formula also.
What do the numbers under the columns 6.6kv, 11kv, 22kv mean? I.e, they indicate ampere rating or mm or no.of fuses to be used???
NEC 450.3(B): If secondary fuse protection is not provided, the primary fuse rating shall be 125% of current.
ReplyDelete