what are doing the duall connetion in tree phase 10hp or etc motor with circui

what are doing the duall connetion in tree phase 10hp or
etc motor with circuit diagram

Question Posted / rajkumar_raj1979

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what are doing the duall connetion in tree phase 10hp or etc motor with circuit diagram ..

I think you are saying about DOL connection for 3phase, 10hp motor. DOL means direct online starter. as per calculation for 10 HP, Power= VI/ (ROOT 3 X COS PHI) where V is three phase voltage, I is current , P-is power cos phi is 0.8 (for inductive load). Cuurrent will be 13AMP.

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