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FORMULAS FOR
CALCULATING AMPERES
the formulas below are at 100% power factor
Single Phase

horsepower times 746,
divided by the voltage,
will give you amperage 

wattage divided by
voltage will give you
amperage 

kilowatt times 1000,
divided by the voltage,
will give you amperage 

kilovolt amperes times 1000,
divided by the voltage,
will give you amperage 

voltage times amperage
will give you wattage 

voltage times amperage
divided by 746
will give you HP 
Three Phase

horsepower times 746,
divided by
the voltage times 1.73,
will give you amperage 

wattage divided by
the voltage times 1.73
will give you amperage 

kilowatt times 1000
divided by
the
voltage times 1.73,
will give you amperage 

kilovolt amperes times 1000
divided by
the
voltage times 1.73,
will give you amperage 

voltage times amperage
times 1.73
will give you wattage 

voltage times amperage
times 1.73
divided by 746
will give you HP 
Copyright © 1998 V.E.S.
