engineering recuitment PSPCL JE Electrical Mock Test 2024 Electrical and Electronics Measurements Instrument Transformers
Which of the following options is true with respect to extending the range of a wattmeter using instrument transformers?
1
The primary winding of potential transformer is connected in series with the load.
2
The secondary winding of potential transformer is connected in series with the pressure coil of wattmeter and voltmeter.
3
The secondary winding of current transformer is connected in series with the current coil of wattmeter and ammeter.
4
The primary winding of current transformer is connected in parallel with the load.