in our sub station why we step down firstly 33kv\11kv then
11kv to 430v. can we direct step down 33v to 430.v.
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Answer Posted / gurucharan singh
because of LV circuit breaker current capacity limitation
upto 3 MVA. Can directly step down from any voltage level
to 415V. but 3 MVA only that around 3150 A in Aluminium Bus
bar or 4000A in cu. bus bar. that about 3.5 MVA.
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