On 31/10/2019 20:27, Andy Burns wrote:
John Rumm wrote:

Domestic meters have historically been quite good at measuring only
the instantaneous real power transfer, and ignoring reactive currents.
How good they are with with modern loads with poor power factors
caused by high harmonic content (like many small SMPSUs) rather than a
more traditional phase shift is perhaps a more interesting question.

Ask a Dutch university?

I don't follow, what have I missed?

--
Cheers,

John.

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