Q. When primary current flows, secondary circuit should be open.

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Q. High magnetizing forces in the core when removed suddenly lead to ____________

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Q. The secondary winding of a C.T. ____________

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Q. The secondary winding of a C.T. is opened when?

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Q. The rectangular type of C.T. is built of _________

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Q. Potential transformers are used to measure _________

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Q. Potential transformers are used with _________

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Q. Potential transformer is similar in design to a _________

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Q. The secondary winding of a P.T. is designed for _________

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Q. The primary current in a C.T. is _________

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Q. The excitation current of a C.T. _________

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Q. Secondary of a P.T. can be open circuited.

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Q. When C.T. is connected in series with a line, a large voltage exists across the primary.

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Q. Winding resistance of a P.T. can be reduced by _________

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Q. Leakage reactance is minimised by _________

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Q. High flux density is due to less turns.

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Q. Ratio error in a P.T. depends on _________

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Q. In a P.T. values of components of currents are negligible.

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Q. Ratio error can be minimised by _________

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Q. Another method of eliminating the ratio error is _________

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