# How is power calculated in an elevator motor?

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An elevator must lift 1000 kg a distance of 100 m at a velocity of 4 m/s. … The total time of the trip can be calculated from the velocity of the elevator: t = = = 25 s. Thus the average power is given by: P = = = 3.9×104 Watts, or 39 kW.

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

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. However, determining the power in watts for an AC source must include the power factor (PF), so W = V x A x PF for AC systems.

## How much power does the elevator generate?

According to figures provided by elevator manufacturer Kone, a typical hydraulic elevator in a three-story office building uses 3,800 kilowatt-hours per year, or about as much as the average American home uses in four months.

## How do I calculate motor power to lift 150 kg?

Force= Weight = Mass * Acceleration due to gravity. Originally Answered: How do I calculate DC motor specification to lift 150 kg? Motor output Power = Torque x Speed. Speed of the motor can be calculated by knowing the linear speed with which you want to lift the mass.

## How is power calculated?

Power is a measure of the amount of work that can be done in a given amount of time. Power equals work (J) divided by time (s). The SI unit for power is the watt (W), which equals 1 joule of work per second (J/s). Power may be measured in a unit called the horsepower.

## Can we run lift using solar power?

Yes, it is perfectly possible to operate an elevator on solar energy. An elevator essentially consists of a motor and some control mechanism. We can obtain these details and can design the solar plant system. Anything which requires electric power to run can be easily powered through solar panels.

## How much electricity does an elevator use per floor?

The elevator controller uses about 83 watts all the time, even when the elevator is idle. That’s about \$130 per year without even moving! Going up uses almost 40 times as much power as going down. Going up 5 floors uses about 500 kilowatt seconds and costs about \$0.03.

## How much power does a lift needs to operate per day?

For normal elevator, I am assuming 800kg/10persons capacity. It will take 5.5kWh if the elevator is run for an hour constantly without stopping at any floors. The inverter/control circuit power, which will additional to this 5500Watts of motor power is negligible in comparison.

## How long will it take a 2.5 kW motor to lift a 80 kg block 30 m high?

A) 9.4 s C) 20 s E) 10 sB) 15 s D) 14 s. Option (A) is correct. Motor will take 9.4 s to lift block.

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## Which motor is used for elevator?

AC slip ring or DC compound motors are prefer for lifts. Shunt type commutator motors are preferred in case of single phase installation. The latest lift designs use 3-phase induction motors with variable frequency drive electronic controls.

## Which motor is suitable for lift?

Conventionally, there are, in general, three types of motors used in elevator systems: AC, DC and a hybrid between the two. The AC-2 motor is a primitive motor drive popular at least half a century ago for low-speed elevators. It is usually coupled with a worm gear to reduce speed and increase driving torque. 