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- Which type of damping is used in electrodynamometer type instrument and why ?
- What is instrument transformer ? Why these are used ?
- Show connection of CT and PT in a high voltage and high current circuit to measure voltage and current of the circuit using low range ammeter and voltmeter.
- How an ammeter having a range of 10 A can be used to measure a current upto a value of 20A without using any instrument transformer ? Show all related calculations.
- For the measurement in 24 (question 24) will CT be proper choice? Explain.