Question 1 1. What are the advantages of single three phase transformer unit over a bank of single phase transformers ? 2. Descril merits and demerits of various connections of three phase transformers. 3. What do you mean by open delta connection? When it is used? 4. Show that open delta connection has a kVA rating of 58% of the rating of the normal delta-delta connection. 5. What are limitations of V-V connection ? 6. Write a short note on T-T connection. 7. With the help of phasor diagram explain how 2 phase supply can be obtained from 3 phase supply using scott connection.
Question 1 1. What are the advantages of single three phase transformer unit over a bank of single phase transformers ? 2. Descril merits and demerits of various connections of three phase transformers. 3. What do you mean by open delta connection? When it is used? 4. Show that open delta connection has a kVA rating of 58% of the rating of the normal delta-delta connection. 5. What are limitations of V-V connection ? 6. Write a short note on T-T connection. 7. With the help of phasor diagram explain how 2 phase supply can be obtained from 3 phase supply using scott connection.
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 3.47P: Consider the oneline diagram shown in Figure 3.40. The three-phase transformer bank is made up of...
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