Transformers – Page 4 – HI MCQ!

Which of the following parts of a transformer is likely to suffer maximum damage due to excessive temperature rise?

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A tap changer is used on a transformer for?

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The rating of a transformer is given in kVA instead of kW because?

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For. given effective applied voltage of constant frequency eddy current losses?

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Transformer supplying load having negative resistance characteristics such as arc load, is considered if its voltage regulation is?

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Leakage fluxes of a transformer may be minimized by?

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The yoke sections of transformers using hot-rolled laminations is made 15 per cent greater than that of the core so as to?

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ln Scott connections the main transformer has centre tap on?

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For transformers upto a capacity of …… kVA air blast cooling is provided?

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The transformer laminations are insulated from each other by?

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