A LT ckt i mean 440 volt flow of current100A.at this time HT current what will ON 11 KV &33 KV.plz givemy answer with example
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Answer / s b mutha
Voltage Ratio : 11000/440= 25, 33000/440= 75
So, current in primary will in 11KV= 4 Amps and in 33KV= 1.333 Amps
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If KVA is known then these are the formulas
Current in LT side
=KVA *1000/1.732*LT VOLTAGE*COSQ
Current in HT side
= KVA *1000/1.732*HT VOLTAGE*COSQ
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