Multiple choice

Can a 50 Hz transformer be used for 25 Hz if the input voltage is maintained at the rated voltage corresponding to 50 Hz?

  1. Yes

  2. No

  3. No, resistance has to be decreased

  4. Yes, at constant voltage

  5. None of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Core is at excessive saturation. Flux is to be doubled.

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