What power in kilowatts is consumed by the motor?
What power in kilowatts is consumed by the motor?
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.
How do you calculate motor power in 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 much energy do motors consume?
You know the statistics… according to the U.S. Department of Energy (DOE), electric motors consume more 50 percent of all electrical energy in the United States and more than 85 percent of industrial production electrical energy.
How much power does a motor consume per hour?
1 unit = 1 kilowat-hour, i.e. when an electrical appliance consumes 1 killowat of Power for one hour . Here, we have a 1 HP motor. So, 1 HP for 24 hour = 746×24= 17904 Watt-hour which is equal to 17904/1000= 17.904 units.
How is motor power calculated?
Power = (Force x Distance) / Time For electric motors, power or horsepower can be calculated from the torque and speed. For example, if you have a motor rated for 3,000 RPM and 6 in-lbf then the horsepower is calculated below.
How much power does a 1hp motor consume?
So, 1 HP for 24 hour = 746×24= 17904 Watt-hour which is equal to 17904/1000= 17.904 units. Hence, 17.904 units of Power will be consumed by the 1 HP motor when run continuously for 24 hours.
What is the power of motor?
In an electric motor, the mechanical power is defined as the speed times the torque. Mechanical power is typically defined as kilowatts (kW) or horsepower (hp) with one watt equaling one joule per second or one Newton-Meter per second. Horsepower is the work done per unit of time.
How to calculate electric motor cost per kWh?
For calculating electricity bill just multiply the total power consumed by the motor with the per kWh price. The electricity cost = Total power consumption * per kWh price
When do you use kW instead of HP?
Generally, in the US, the kW is used as the unit of power for large electrical devices other than motors/engines, and the hp is used for motors and engines, although it is also common practice to use the kw as a unit of power input to an electric motor and…
How to calculate the input energy of a motor?
To get actual electrical input energy, divide 18.65 kW-hours by the efficiency. For instance, if the motor is 90% efficient, the input energy is: No more Good Answers.
How much energy does a 25hp motor use?
Just because a motor is rated 25HP does not mean it is consuming 25HP. Motors only consume what they need to move the load plus whatever they waste in doing the job. If you hook up a 25HP motor to a load that only needs 10HP to do what you want it to do, then the motor will only consume 10HP (plus waste).
Is it possible for an electric motor to run backwards?
Can an Electric Motor Run Backwards by Accident or Because of Damage? Watch out: yes it is indeed possible for some electric motors to run “backwards” following damage to the motor’s start capacitor or windings. We’ve had an occasional report of an HVAC motor running “the wrong way” or sometimes starting to run the the wrong way.
For calculating electricity bill just multiply the total power consumed by the motor with the per kWh price. The electricity cost = Total power consumption * per kWh price
How many Watts Does a 25 hp motor use?
One horsepower = 746 Watts. So 25 hp = 18,650 Watts. If you run that motor for one hour, you will expend: 18,650 Watts * 1 hr = 18.65 kW-hours. That’s assuming 100% efficiency. Real efficiency is less. To get actual electrical input energy,…
Which is the correct definition of a kilowatt hour?
A kilowatt-hour is a measure of the amount of energy a certain machine needs to run for one hour. So, if you have a 1,000 watt drill, it takes 1,000 watts (or one kW) to make it work. If you run that drill for one hour, you’ll have used up one kilowatt of energy for that hour, or one kWh. What Can a Kilowatt-Hour Power?
