Spinning disk meters are becoming a thing of the past. However, I believe that very few utilities are billing residential customers for kVAR. Many do charge residential demand and time-of-day rates. Eric, you may want to comment further.
Chuck WB2EDV ----- Original Message ----- > As I stated in an earlier post, the rotating-disk kWH meter on the typical > residence measures only true power. It does this magic by combining the > magnetic fields of two coils: a voltage coil that is connected in parallel > with the load, and a current coil that is in series with the load. The > angular displacement of these coil windings is precisely set so that only > currents that are exactly in phase with the voltage result in a torque to > turn the aluminum disk.
