5. The input current to a 3 phase step down transformer connected to an 11KV supply system is 14 A. Given the voltage ratio as 1/44 i.e., K = 0.2272, calculate secondary line voltage and current for: i. Star-star connection ii. Star-Delta connection

5. The input current to a 3 phase step down transformer connected to an 11KV supply system is 14 A. Given the voltage ratio as 1/44 i.e., K = 0.2272, calculate secondary line voltage and current for: i. Star-star connection ii. Star-Delta 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 3.4P: A single-phase 100-kVA,2400/240-volt,60-Hz distribution transformer is used as a step-down...

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Concept explainers

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.

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5. The input current to a 3 phase step down transformer connected to an 11KV supply system is
14 A. Given the voltage ratio as 1/44 i.e., K = 0.2272, calculate secondary line voltage and
current for:
i.
Star-star connection
ii.
Star-Delta connection

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