ISRO Electrical Engineering (EE) 2014 - Question 9

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In Scott connection, if the ratio of the main transformer is k, then the teaser transformer has transformation ratio of

  • A. 2k/√3
  • B. √3k /2
  • C. K / √3
  • D. K / 2

Answer: B. √3k /2

Explanation: Teaser turns are (√3/2) of main turns, so teaser ratio = (√3/2)k.

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