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Q#1 Transformers GATE EE 2000 MCQ +2 marks -0.66 marks

A 3-phase delta/star transformer is supplied at 6000V on the delta-connected side. The terminal voltage on the secondary side when supplying full load as 0.8 lagging power-factor is 415V. The equivalent resistance and reactance drops for the transformer are 1% and 5% respectively. The turns ratio of the transformer is:

14

24

42

20

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