P = 1.73UIcos fi

 

U = V

I = A

cos fi =

    P = W

 


 

 

 

I = P/1.73Ucos fi

 

P = W

U = V

cos fi =

   I = A

 

 


 

 

U = P/1.73Icos fi

 

P = W

I = A

cos fi =

   U =