A single phase motor connected to 400V, 50HZ supply takes 37A at a power factor of 0.8 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to unity. Sketch the corresponding power triangle and phasor diagram for the power factor correction.

A single phase motor connected to 400V, 50HZ supply takes 37A at a power factor of 0.8 lagging. Calculate the capacitance required in parallel with the motor to raise the power factor to unity. Sketch the corresponding power triangle and phasor diagram for the power factor correction.

Electric Motor Control

10th Edition

ISBN:9781133702818

Author:Herman

Publisher:Herman

Chapter39: Synchronous Motor Operation

Section: Chapter Questions

Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...

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Question

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A single phase motor connected to 400V, 50HZ
supply takes 37A at a power factor of 0.8 lagging.
Calculate the capacitance required in parallel with
the motor to raise the power factor to unity. Sketch
the corresponding power triangle and phasor
diagram for the power factor correction.

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