An industrial plant consists of several induction motors. The plant absorbs 300 kW at 0.6 PF lagging from the substation bus. Compute the required kVAR rating of the capacitor connected across the load to raise the power factor to 0.9 lagging. A 200-hp, 90% efficiency, synchronous motor is operated from the same bus at rated conditions and 0.8 power factor leading. Calculate the resulting power factor.

An industrial plant consists of several induction motors. The plant absorbs 300 kW at 0.6 PF lagging from the substation bus. Compute the required kVAR rating of the capacitor connected across the load to raise the power factor to 0.9 lagging. A 200-hp, 90% efficiency, synchronous motor is operated from the same bus at rated conditions and 0.8 power factor leading. Calculate the resulting power factor.

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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