Amperes
Direct Current
Given HP, Volts, %EFF, PF
Given kW, Volts, PF
Single-phase
Given Watts, Volts, PF
Given HP, Volts, %EFF, PF
Given kW, Volts, PF
Given kVA
Three-phase
Given Watts, Volts, PF
Given HP, Volts, %EFF, PF
Given kW, Volts, PF
Given kVA, Volts
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Given HP, Volts, %EFF, PF
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Solving for Three-phase Amperes when Horsepower, Volts, Efficiency, Power Factor are known
or
1
HORSEPOWER
HP
2
VOLTS
E
3
EFFICIENCY
%EFF
4
POWER FACTOR
PF
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See also
Calculations
Solving for Single-phase Amperes when Kilowatts, Volts, Power Factor are known
Solving for Two-phase Kilowatts when Volts, Amperes, Power Factor are known
Guides
Parallel Conductor sizing and ampacities for insulated conductors rated 0-2000 Volts in raceway, cable, or direct buried
Conductor sizing and ampacities for insulated conductors rated 0-2000 Volts in raceway, cable, or direct buried
Definitions
Ohm's Law
Power - D-C Circuits
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