Explanation of how kilowatt-hour meters work (electromechanical)

I take apart an electromechanical power meter and describe how it uses magnetic fields to measure power consumed.

The voltage coil's numerous turns of wire already provide some phase shift -- the copper ring adds additional shift to bring the total up to 90 degrees.

Видео Explanation of how kilowatt-hour meters work (electromechanical) канала Applied Science