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Motor $ense

 

Motor Application Formulas

where:

W = power (Watts)

E = voltage (Volts)

I = current (Amperes)

R = resistance (Ohms)

EFF = Full Load Efficiency

PF = Power Factor

 

(1 horsepower is equivalent to approximately 746 Watts)

 

Electric Motor Formulas

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

 

 

Electrical Circuit Formulas

 

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

 

Electric Power

W = E I 

W = R I2

W = E2/ R