The previous answer have second part was not solved fully and clearly.Please solve clear and full solution thanks Question-III: A 10-kVA, 120-V:480-V, normal transformer is to be used as a step-downautotransformer to supply a 480-V load from a 600-V source. When it is tested as anormal transformer at rated load and 1 power factor (p.f.), the efficiency (n) is 97.9%.a) Draw the connection diagram of the autotransformer.b) Determine the rated primary and secondary currents, voltage ratings, and kVAratings of the autotransformer.c)Find the efficiency (n) of the autotransformer when it supplies its rated load(full-load) at 0.85 p.f. lagging.

Answered: Image /qna-images/answer/c5ddc6d6-cc74-4fa6-8964-70301460c986.jpg

a) Draw the connection diagram of the autotransformer. b) Determine the rated primary and secondary currents, voltage ratings, and kVA ratings of the autotransformer. c) Find the efficiency (n) of the autotransformer when it supplies its rated load (full-load) at 0.85 p.f. lagging.

a) Draw the connection diagram of the autotransformer. b) Determine the rated primary and secondary currents, voltage ratings, and kVA ratings of the autotransformer. c) Find the efficiency (n) of the autotransformer when it supplies its rated load (full-load) at 0.85 p.f. lagging.

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 3.57P: A two-winding single-phase transformer rated 60kVA,240/1200V,60Hz, has an efficiency of 0.96 when...

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