29. Transformer oil must be free from
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30. Which of the following parts of a transformer is likely to suffer maximum damage due to excessive temperature rise?
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31. The magnetising current of a trans former is usually small because it has
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32. In a power transformer, conservator takes care of
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33. Which of the following will improve the mutual coupling between primary and secondary of a transformer?
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34. Transformer oil used in transformer provides
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35. The size of transformer core depends on
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