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Question 1 I need an expert, preferably supported by law, a drawing, or evidence. a. Explain the construction and types of autotransformers. b. Derive an expression for the saving of copper effected by using an autotransformer instead of a two winding transformer. c. Prove that power is transferred by conduction as well as induction in autotransformers. d. Why VA rating of autotransformer is more than the corresponding two winding transformer ? f. State the advantages and limitations of an autotransformer. g. State the various applications of an autotransformer. y. What is an autotransformer? What is the difference between autotransformer and a two winding transformer? u. What is all day efficiency of a transformer? How to calculate it? r. Explain the short circuit test and open circuit test on transformer. Why these tests are to be performed? p. Explain with neat circuit diagram, how Sumpner's test is performed? What are its advantages over O.C. and S.C. tests? What is its limitation? s. What is polarity test? Why it is required to be performed? How it is performed ? Draw the suitable circuit diagram. n. Discuss the difference between core type and shell type of construction. m. Step by step, obtain the equivalent circuit of a transformer. o. How approximate equivalent circuit is different from accurate equivalent circuit ?

Question 1 I need an expert, preferably supported by law, a drawing, or evidence. a. Explain the construction and types of autotransformers. b. Derive an expression for the saving of copper effected by using an autotransformer instead of a two winding transformer. c. Prove that power is transferred by conduction as well as induction in autotransformers. d. Why VA rating of autotransformer is more than the corresponding two winding transformer ? f. State the advantages and limitations of an autotransformer. g. State the various applications of an autotransformer. y. What is an autotransformer? What is the difference between autotransformer and a two winding transformer? u. What is all day efficiency of a transformer? How to calculate it? r. Explain the short circuit test and open circuit test on transformer. Why these tests are to be performed? p. Explain with neat circuit diagram, how Sumpner's test is performed? What are its advantages over O.C. and S.C. tests? What is its limitation? s. What is polarity test? Why it is required to be performed? How it is performed ? Draw the suitable circuit diagram. n. Discuss the difference between core type and shell type of construction. m. Step by step, obtain the equivalent circuit of a transformer. o. How approximate equivalent circuit is different from accurate equivalent circuit ?

Power System Analysis and Design (MindTap Course List)
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 3.28MCQ
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Question 1 I need an expert, preferably supported by law, a drawing, or evidence. a. Explain the construction and types of autotransformers. b. Derive an expression for the saving of copper effected by using an autotransformer instead of a two winding transformer. c. Prove that power is transferred by conduction as well as induction in autotransformers. d. Why VA rating of autotransformer is more than the corresponding two winding transformer ? f. State the advantages and limitations of an autotransformer. g. State the various applications of an autotransformer. y. What is an autotransformer? What is the difference between autotransformer and a two winding transformer? u. What is all day efficiency of a transformer? How to calculate it? r. Explain the short circuit test and open circuit test on transformer. Why these tests are to be performed? p. Explain with neat circuit diagram, how Sumpner's test is performed? What are its advantages over O.C. and S.C. tests? What is its limitation? s. What is polarity test? Why it is required to be performed? How it is performed ? Draw the suitable circuit diagram. n. Discuss the difference between core type and shell type of construction. m. Step by step, obtain the equivalent circuit of a transformer. o. How approximate equivalent circuit is different from accurate equivalent circuit ?
Transcribed Image Text:Question 1 I need an expert, preferably supported by law, a drawing, or evidence. a. Explain the construction and types of autotransformers. b. Derive an expression for the saving of copper effected by using an autotransformer instead of a two winding transformer. c. Prove that power is transferred by conduction as well as induction in autotransformers. d. Why VA rating of autotransformer is more than the corresponding two winding transformer ? f. State the advantages and limitations of an autotransformer. g. State the various applications of an autotransformer. y. What is an autotransformer? What is the difference between autotransformer and a two winding transformer? u. What is all day efficiency of a transformer? How to calculate it? r. Explain the short circuit test and open circuit test on transformer. Why these tests are to be performed? p. Explain with neat circuit diagram, how Sumpner's test is performed? What are its advantages over O.C. and S.C. tests? What is its limitation? s. What is polarity test? Why it is required to be performed? How it is performed ? Draw the suitable circuit diagram. n. Discuss the difference between core type and shell type of construction. m. Step by step, obtain the equivalent circuit of a transformer. o. How approximate equivalent circuit is different from accurate equivalent circuit ?
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