A 3-phase motor is connected to a 440V line and draws a current of 5A. If the power factor of the motor is the highest two digits in your KSU in percent (e. g. 000123456 would be a power factor of 56%) calculate the magnitude of the total apparent power S.

Question

Jensen Moore

Physics

3 April, 18:44

A 3-phase motor is connected to a 440V line and draws a current of 5A. If the power factor of the motor is the highest two digits in your KSU in percent (e. g. 000123456 would be a power factor of 56%) calculate the magnitude of the total apparent power S.

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Diya · Answer 1

2133.89VA

Explanation:

Using KSU id 000123456

Apparent power = Pa = (3^1/2) * Pf*I*V

Where Pf = power factor =.56

V = 440v = voltage magnitude in the line

I = current = 5amp

So therefore

Pa = (3^1/2) *.56 * 5 * 440

Pa = 2133.89VA