Forums Common electrical queries Electrical

This topic contains 2 replies, has 2 voices, and was last updated by Profile photo of AP AP 3 months ago.

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  • #1272 Reply
    Profile photo of shakthi
    0 votes

    transformer rating is 11kv,22kv,33kv,66kv.why not transmissikn ratings in10kv,20kv,30kv…Etc 

    #1273 Reply
    Profile photo of Seenivasan
    0 votes

    Your generation is AC SO form factor of Ac is 1.11 so transmission KV are designed 11 series

    #1280 Reply
    Profile photo of AP
    2 votes
    Points: 64
    Query Resolver

    there is no hard and fast rule for voltage rating of transformer  such as 11kv, 33kv,  66kv, 132kv etc. To make the calculation simple and easy voltage rating of transformer make multiple of 11. because form factor (1.11) is multiplied with emf equation of transformer.  for example, 400kv is not a multiple of 11

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