Design Notes
   

Formulas For Electrical Motors:

To Find:     Direct
   Current		     Single Phase           Three Phase
Horse Power E x I x EFF
       746		 E x I x EFF x PE
           746		 1.732 x E  x I x EFF x PF
                746
Current    746 x HP
    E x EFF		        746 x HP    
    E x EFF x PF		            746 x HP            
  1.732 x E x EFF x PF
Efficiency    746 x HP
      E x I		        746 x HP
       E x I x PF		              746 x HP      
     1.732 x E x I x PF
Power Factor     ---------       Input Watts
           E x I		             Input Watts 
            1.732 x E x I

                            E     =  Volts                        HP = Horsepower            PF = Power Factor (decimal)
                                     EFF = Efficiency (decimal)    I    = Amperes

Formulas For Electrical Circuits:

To Find:    Direct  Current       Single Phase               Three Phase
Amperes          Watts
         Volts		            Watts             
 Volts x Power Factor		                    Watts                   
 1.732 x Volts x Power Factor
Volt-Amperes    --------------------     Volts x Amperes     1.732 x Volts x Amperes
Watts  Volts x Amperes     Volts x Amperes
      x Power Factor		     1.732 x Volts x Amperes
           x Power Factor

 

OHMS Law Capacitance in Microfarads
at 60 HZ.
Ohms = Volts/Amps (R=E/I)
Amps = Volts/Ohms (I=E/R)
Volts  = Amps x Ohms (E+IR) 		 Capacitance = 2650 x Amperes
                                Volts

Capacitance = 2.65 x kVAR
                          (Volts)squared