Q: A 3 phase 10 MVA, HI KV Y connectedalternator is protected by Merz-Price-circulating current system. the star Point is earthedthrong a resistance of 5. If CTs have afatioof 1000/5 and the relay is set to operate whenther is overload with 30%Calcolatei) the percentage of each phase of Stator Windingwhich is protected If the reactance ofthe stator winding is 10%. per Phase.2) The minimum value of earthing resistanceto protect 85% of the Winding Heglect thereactance of the stator winding in this case.diagram for 10 V there

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Answered: Q: A 3 phase 10 MVA, HI KV Y connected…

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.5P

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