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- Subject
- Transformerselectrical-engineering-mcqs › transformers
- Published
- 28 Jun 2018
- Last updated
- 28 May 2026
Explanation
The end turns in a transformer are heavily insulated to withstand the elevated voltage drop resulting from line surges created by the shunting capacitance of these turns. This insulation helps prevent insulation failure caused by these high voltage stresses.
More Transformers MCQs
Practice related questions from the same subject.
- 1.Identify the incorrect statement about an ideal single-phase transformer with a turns ratio of 1:2, which draws 10 A from a 200 V AC source.
- 2.In a transformer operating at a fixed voltage, which losses stay constant regardless of variations in load?
- 3.Which type of losses are present in rotating electrical machines but are absent in transformers?
- 4.How does the eddy current loss change when the frequency of a fixed applied voltage is increased?
- 5.Which type of transformer core construction results in reduced core losses and enhanced permeability?
- 6.What is the common term for the sound generated by a transformer?
- 7.Which component of a transformer can be seen externally?
- 8.Among the following insulating materials, which one can endure the highest temperature without damage?
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