A 72-kVA, 208-V, Y -connected, three-phase synchronous generator delivers the rated load at 0.866 pflagging. The armature winding resistance is 20 mΩ/phase. The core loss is 800 W. The friction and the windageloss is 350 W. The field winding is connected across a 120-V dc source and the field current is 5.5 A. Calculate the efficiency of the generator

A 72-kVA, 208-V, Y -connected, three-phase synchronous generator delivers the rated load at 0.866 pflagging. The armature winding resistance is 20 mΩ/phase. The core loss is 800 W. The friction and the windageloss is 350 W. The field winding is connected across a 120-V dc source and the field current is 5.5 A. Calculate the efficiency of the generator

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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