3hp Electric Motor Amps

Multiply the ac voltage by the motor efficiency the power factor and the square root of 3.

3hp electric motor amps.

Amps hp 746 v η pf. Amperes amps and horsepower hp are the electric motor s rating methods. Typically the nominal system voltage for a motor will be above the nameplate voltage to compensate for any voltage drop in the circuit. 1 ph amps 746 x hp v e f p f 1 fla 1 ph ampere x 1 25 3 ph amps 746 x hp 1 732 v e f p f 3.

A very rough way to calculate a possible current draw if you know the motor s operating voltage is to use the fact that 1 hp is approximately equal to 0 75 kilowatts. 230 volts motor single phase. Code to add this calci to your website. Thus the current in amps is equal to horsepower times 746 divided by the voltage times the efficiency η times the power factor.

Electrical induction motors synchronous speed the speed at which an induction motor. This online horsepower to amps unit calculator allows you to convert electric motor hp to amps value in order to identify the value of electrical intensity based on the known hp efficiency voltage. I e motor copper grade s quality will be grade1 grade 2 grade 3 7 5 hp 3 phase motor takes 9 7 amps 10 hp 3 phase motor takes 13 amps. Amps watts volts.

Electric motor efficiency calculate electric motor efficiency. Amps amount of the rate of flow of electricity whereas horsepower measurement of work divided by time. Example if you have 100 hp multiply by 746 and you get 74600. Multiply hp horsepower by 746.

For example if there are three 15 amp motors in the circuit the ampacity rating of the wire feeding the circuit must exceed 15 15 15 1 25 48 75 amps. How to convert hp to amp ac 3 phases in only 3 step. There are exceptions to this requirement which would include interlocks of two or more motors to prevent them from running at the same time. After the steps above the final formula for converting horsepower to amps is.

Electric motor calculator calculate amps hp and kva. 230 volts motor 3 phase. Always check nameplate information before designing protective devices wiring and switch gear. Amps to hp calculator.

Three phase 230 volts is not a common voltage any more but the book lists the amperage as 9 6 460 volt. 460 volts motor 3 phase. In practically the current rating may change and which is based in the manufactured standard as well as the what grade copper they are using to winding the motor. For example if the motor is 220vac it has an efficiency of 80 and the power factor is 0 9 it must multiply 220vdc by 0 8 80 by 0 9 by 3 square root of 3 to obtain 274 35 220vdcx0 8 0 9x 3 274 35.

The electrical code book states that a 3hp 230 volts single phase motor is rated at 17 amps.