Answer / santhosh(adityabirla group)

u know ur motor kw and supply voltage, first u have to
calculate ur full load amps,

KVA 480V
30 36A
45 54A
75 90A

now u have to select ur rated KVA trafo

Answer / santhosh(adityabirla group)

transformer selection calculation


A=KVA*1000/V*1.732
ex: ur amps:36
volts :480
calculate ur KVA

Ans:29.92
selact :30KVA

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