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C.T. and P.T. are used for _________

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C.T. and P.T. are used for _________

(a) measuring low current and voltages

(b) measuring very low current and voltages

(c) measuring high currentsand voltages

(d) measuring intermediate currents and voltages

The question was asked during an interview.

Question is from Instrument Transformers topic in chapter Extension of Instrument Ranges of Electrical Measurements

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Correct option is (c) measuring high currentsand voltages

The explanation: C.T. is basically used for the measurement of high currents. A P.T. is usually used for the measurement of high voltages. They are used with A.C. ammeters and voltmeters in order to extend their range.

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