Why are motors measured in KW rather than KVA?

Since the power output of a motor is the actual power that it generates, that is measured in kilowatts, motors are normally rated in kilowatts (kW) than in kilovolt-amperes (kVA).

This is due to power output of a motor is measured in kilowatts.

Kilowatts are a measure of real power, which is the amount of power that is really transferred from the battery to the motor in the form of productive work.

It is a measurement of the motor’s potential to do significant functions, such as operating machines, pumps, or other devices, and it indicates the actual power output of the motor.

Kilovolt-amperes (kVA) , on the other end, is a representation of perceived power, which is the mix of actual power & reactive power.

The inductive and capacitive components of the motor are responsible for the phenomenon known as reactive power, which does not immediately result in the production of valuable output.

It is a representation of the power required to create and sustain the electromagnetic fields that are necessary for the functioning of the motor.

Because motors are mainly intended to carry out mechanical work, it would be more appropriate to rate their power in kilowatts, which accurately reflects the amount of power that is really being produced by the motor.

Users are able to accurately calculate the motor’s energy consumption, efficiency, & whether it is suitable for the application they have in consideration as a result of it.

However, it is important to keep consideration that in certain conditions, especially when evaluating motors utilised in larger industrial applications, a power factor may be stated in addition to kilowatts (kW) & kilovolt-amperes (kVA).

Both of these units measure electrical power. The power factor is a ratio that reflects the difference between the motor’s true power and its apparent power. This ratio provides a more in-depth knowledge of the motor’s electrical properties.