How much electricity does an electric motor use?
Keeping this in view, how much power does an electric motor use?
W is the power consumption in watts. 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.
In this regard, how much does it cost to run an electric motor?
Here is a breakdown of how much one 200 hp, 1,800 rpm and 460 V TEFC motor costs in power in a calendar year (7,200 hours of operation): Average cost of power in the United States: $. 068/kWh. Annual Power Cost: $70,669.
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.