The plant capacity of a 3Ø generating station consists of two 10,000 KVA alternators of reactance 12% each and one 5,000 KVA alternator of reactance 18%. The alternators are connected to the station bus-bar from which load via a transmission line is taken through three 5,000 KVA transformers each having a reactance of 5%. Determine the maximum fault in MVA which the circuit breakers on low voltage side of the transformer may have to deal with. Let base be 10,000 KVA.

The plant capacity of a 3Ø generating station consists of two 10,000 KVA alternators of reactance 12% each and one 5,000 KVA alternator of reactance 18%. The alternators are connected to the station bus-bar from which load via a transmission line is taken through three 5,000 KVA transformers each having a reactance of 5%. Determine the maximum fault in MVA which the circuit breakers on low voltage side of the transformer may have to deal with. Let base be 10,000 KVA.

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 3.36P: Three single-phase two-winding transformers, each rated 25MVA,34.5/13.8kV, are connected to form a...

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