Electrical Engineering · Electrical Measurements
Which connection method is correct when using a Current Transformer (CT) and a Potential Transformer (PT) with a wattmeter?
- 1Both CT and PT are connected in parallel with the wattmete r.
- 2Both CT and PT are connected in series with the wattm eter.
- 3CT is connected in parallel with the wattmeter current coil, and PT is connected in series with t he voltage coil.
- 4CT is connected in series with the wattmeter current coil, and PT is connected in parallel with the voltage coil.✓
Correct answer
CT is connected in series with the wattmeter current coil, and PT is connected in parallel with the voltage coil.
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