A 6.6 kV, star-connected,3-phase, synchronous motor works at constant voltage and constant excitation. Its synchronous impedance is (2.0 + j 20) per phase. When the input is 1100 kW, its power factor is 0.8 leading. Find the power factor when the input is increased to 1800 kW. (ILLUSTRATIONS such as diagrams and graphs are Required).

A 6.6 kV, star-connected,3-phase, synchronous motor works at constant voltage and constant excitation. Its synchronous impedance is (2.0 + j 20) per phase. When the input is 1100 kW, its power factor is 0.8 leading. Find the power factor when the input is increased to 1800 kW. (ILLUSTRATIONS such as diagrams and graphs are Required).

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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