Abalancedstarconnectedloadisconnectedtoa4kVA,415V,starconnectedthreephasegeneratorviaathreewiretransmissionline.Theimpedanceofeachlineis0.3+j6.0ohms.Thesynchronousimpedanceofthegeneratoris0.4+j2.4ohms.Thefixedlossesofthegeneratorare175W.Thefieldwindingisconnectedtoa120Vsourceandthefieldcurrentis5.5A.Whenthegeneratordeliversratedloadatratedvoltageandat0.866powerfactorlagging,findTheefficiencyofthegenerator(- 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,findTheefficiencyofthegenerator(- Answer 79.8%)Thevoltageregulationattheload(Answer - 11.2%)Theefficiencyoftheentiresystem.(Answer - 79.2%)Drawthepowerflowdiagramoftheentirepowersystemindicatingonthediagramallthevaluesofthepowerflows..
Chapter29: Service-entrance Calculations
Section: Chapter Questions
Problem 3R: a. What is the ampere rating of the circuits that are provided for the small-appliance loads? _____...
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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..
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