GATE EE 2019 Set 1 — Question 18
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Electrical Machines → Single-Phase Transformers → Voltage Regulation
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Question
A , , single-phase transformer has a secondary terminal voltage of when loaded. The regulation of the transformer is
Correct answer
(C) 5\%
Solution
Voltage regulation is defined as the change in secondary terminal voltage from no-load to full-load, expressed as a percentage of the no-load voltage:Given:
No-load secondary voltage () =
Full-load secondary voltage () =
Therefore, option (C) is the correct answer.
No-load secondary voltage () =
Full-load secondary voltage () =
Therefore, option (C) is the correct answer.
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