When secondary of a current transformer is open-circuited its iron core will be?

1 Answer

When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density.

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Description : The secondary of a current transformer is always short-circuited under operating conditions because it?

Answer : The secondary of a current transformer is always short-circuited under operating conditions because it avoids core saturation and high voltage induction.

Description : A ferrite core has less eddy current loss than an iron core because?

Answer : A ferrite core has less eddy current loss than an iron core because ferrites have high hysteresis.

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Answer : In a transformer the resistance between its primary and secondary should be infinity.

Description : The size of a transformer core will depend on?

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Answer : If the supply frequency to the transformer is increased, the iron loss will increase.

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