Abalancedstarconnectedloadisconnectedtoa4kVA,415V,starconnectedthreephasegeneratorviaathreewiretransmissionline.Theimpedanceofeachlineis0.3+j6.0ohms.Thesynchronousimpedanceofthegeneratoris0.4+j2.4ohms.Thefixedlossesofthegeneratorare175W.Thefieldwindingisconnectedtoa120Vsourceandthefieldcurrentis5.5A.Whenthegeneratordeliversratedloadatratedvoltageandat0.866powerfactorlagging,findTheefficiencyofthegenerator(- Answer 79.8%)Thevoltageregulationattheload(Answer - 11.2%)Theefficiencyoftheentiresystem.(Answer - 79.2%)Drawthepowerflowdiagramoftheentirepowersystemindicatingonthediagramallthevaluesofthepowerflows..

Abalancedstarconnectedloadisconnectedtoa4kVA,415V,starconnectedthreephasegeneratorviaathreewiretransmissionline.Theimpedanceofeachlineis0.3+j6.0ohms.Thesynchronousimpedanceofthegeneratoris0.4+j2.4ohms.Thefixedlossesofthegeneratorare175W.Thefieldwindingisconnectedtoa120Vsourceandthefieldcurrentis5.5A.Whenthegeneratordeliversratedloadatratedvoltageandat0.866powerfactorlagging,findTheefficiencyofthegenerator(- Answer 79.8%)Thevoltageregulationattheload(Answer - 11.2%)Theefficiencyoftheentiresystem.(Answer - 79.2%)Drawthepowerflowdiagramoftheentirepowersystemindicatingonthediagramallthevaluesofthepowerflows..

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter29: Dc Generators

Section: Chapter Questions

Problem 5RQ: What are interpoles, and what is their purpose?

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