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Transformer sizing for a motor starter

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ngs

Electrical
Apr 27, 2004
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Can anyone point me in the right direction, to correctly size a transformer for a 3 phase motor starter? I am interested in calculating the correct power rating in KVA.

I am not sure if this is correct, but I am using this formula: KW = HP * 746 / 1000

KVA = KW * 1.5(Form Factor)
 
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