# How much power does an electric motor use?

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1 Horsepower is equal to 745.7 watts of electrical power, so in theory a 5HP motor operating at 100% efficiency will consume about 3.728kW of power. In one hour, it will use 3728.5 kilowatt-hours. Of course, no motor is 100% efficiency, so the motor will actually consume somewhat more power than this.

## How much electricity does a motor use?

For example, if the electric motor uses 50 amps at 240 volts, the wattage is 50 x 240 x 1.73, or 20,760 watts. Electricity costs are based on kilowatts (kW), so divide watts by 1000 to convert to kilowatts (20,760 wats/1000 = 20.76 kW). Record the time the motor is in operation.

## How much power does a 50 hp electric motor use?

So divide the output (50 HP) by the efficiency (0.92), to get the energy required to be input into the motor, to get 50 HP. So — 37,300 Watts / 0.92 = ~ 40,500 Watts is required to be input to the motor to get the 50 HP output.

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746 watts

## How much power does a 100 hp motor use?

This 100-horsepower centrifugal pump motor, if fully loaded, should be consuming nearly 80,000 watts (80 kW).

## How do you calculate the power of a motor?

By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.

## How much power does a 3 HP motor use?

Approximate Starting WattageApproximate Running Wattage3 Horsepower520030004 Horsepower75004800Fan Duty1/4 Horsepower1200650Ещё 47 строк

## How much electricity does a 2 hp motor use?

So, 1 HP for 24 hour = 746×24= 17904 Watt-hour which is equal to 17904/1000= 17.904 units.

How many watts does a 1 hp electric motor use?HorsepowerWattsRounded Watts1 hp745.699872 W746 Watts2 hp1491.399744 W1491 Watts3 hp2237.099616 W2237 Watts4 hp2982.799488 W2983 Watts

## How much does it cost to run a 5hp electric motor?

1 Horsepower is equal to 745.7 watts of electrical power, so in theory a 5HP motor operating at 100% efficiency will consume about 3.728kW of power. In one hour, it will use 3728.5 kilowatt-hours. Of course, no motor is 100% efficiency, so the motor will actually consume somewhat more power than this.

## How much power does a 7.5 hp motor consume?

Let us assume that motor is operating at full load so it will consume 7.5 hp or 5.59 or 5.6 kW approx. Let us assume motor has efficiency of 90 %, motor at full load gives around 90 % efficiency, so the power input to motor is 5.6/0.9=6.22 kW. Energy consumption in 2 hrs = 6.22×2=12.44 KWh or 12.44 unit.

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## How many kW is a 5 hp motor?

Three Phase MotorsMOTOR RATINGHP2.2 kW33.53.0 kW44.73.7 kW564.0 kW5.56Ещё 27 строк

1125 watts

## How many horsepower is 1000w?

Watts to horsepower conversion tableWatts (W)Mechanic horsepower (hp(I))Electric horsepower (hp(E))700 W0.938715 hp0.938338 hp800 W1.072817 hp1.072386 hp900 W1.206920 hp1.206434 hp1000 W1.341022 hp1.340483 hpЕщё 28 строк

## How long can an electric motor run continuously?

You should anticipate, given proper attendance, that the motor can run continuously for the life of its brushes, which should be in the range of six months to a year. Presuming that the motor is too small to have its brushes changed by a trained electrician while running.

## How do you calculate motor kW?

Multiply the motor voltage by the full-load current. The result is in watts. Divide watts by 1,000 to give kilowatts. For example, 230 volts x 20 amps = 4,600 watts; 4,600 watts divided by 1000 = 4.6 kilowatts.

## How is motor RPM calculated?

How to Calculate Motor RPM. To calculate RPM for an AC induction motor, you multiply the frequency in Hertz (Hz) by 60 — for the number of seconds in a minute — by two for the negative and positive pulses in a cycle. You then divide by the number of poles the motor has: (Hz x 60 x 2) / number of poles = no-load RPM.