Physics · Electrical Measurements
Which of the following options is true with respect to extending the range of a wattmeter using instrument transformers?
- 1The primary winding of the current transformer is connected in parallel with the load.
- 2The secondary winding of the current transformer is connected in series with the current coil of the wattmeter and ammeter.✓
- 3The secondary winding of the potential transformer is connected in series with the pressure coil of the wattmeter and voltmeter.
- 4The primary winding of the potential transformer is connected in series with the load.
Correct answer
The secondary winding of the current transformer is connected in series with the current coil of the wattmeter and ammeter.
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