How to calculate horsepower from amps. I a p w v v. Ampere is an si unit of measurement of electric current. Amps amount of the rate of flow of electricity whereas horsepower measurement of work divided by time. The basic formulas for the calculations are.
Watts amps volts. Ac single phase watts to amps calculation. The power factor of. Hp to amps calculator is used to calculate the amperes from horsepower of the motor is known.
Horsepower amps volts efficiency 746. Hp to amps formula is used to calculate current from horsepower in single and three phase ac circuits as well as in dc circuits. Watts law gives us the formula to solve power given voltage and current using this formula. The current i in amps a is equal to the power p in watts w divided by the voltage v in volts v.
Amps to hp calculator. You can use the electrical calculator to find the current in single 2 and 3 phase motor circuits as well as in dc circuits. Where p is the power in watts or joules per second v is the potential difference in volts and i is the current in amperes. After converting amps and volts to watts the next step is to convert.
Amperes amps and horsepower hp are the electric motors rating methods. I a p w pf v v. How did we get that. Horsepower is the unit of measurement of work done that is power.
Convert horsepower to watts. Dc watts to amps calculation. The first step to convert hp to amps is convert hp to watts. Power can also be expressed in volt amperes and horsepower hp with the latter often used in everyday engines such as those in motor vehicles.
One amps is equal to one coulomb per second. The calculation of amps uses ohms law which is amps times volts equals watts. 1 hp is equal to 746 watts. The phase current i in amps a is equal to the power p in watts w divided by the power factor pf times the rms voltage v in volts v.
Fla full load amps amount of current drawn when full load torque and horsepower is reached for the motorfla is usually determined in laboratory testsnote. 1 hp 0745 kw. It is expressed in foot pound second. Related mobile apps from the engineering toolbox.
Continue reading to see how this formula was derived. Rla running load amps current drawn during normal operation of electric motor. It is a unit used to measure the output power in machineries. Horsepower is the amount of energy a motor creates when in use.
In the calculator above fla is rla 25. Amps measure electrical current.