Answer Posted / amr mobarak

From the Theory of Design of any transformer we know that :-

S(primary ) = S(secondary ) , neglecting the Losses
I.V (primary ) = I.V (secondary )

So When We Try to Describe any Transformer We Refer to VA or
KVA or MVA as their Values are the Key of Design not The
Power ( Active or Reactive ).

Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks

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for 100 HP Induction motor service factor is 1.2(SF) we placed a VFD at the motor side load is balance with 0.3 Amp's Phase to Phase but at incoming of VFD load is un-balance with 10 to 20 Amp's what will be cause of load un balance

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Instrument connected to a single phase supply

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