Sounds like someone in Meter Engineering earned their salary that week!
Wow...
----------------------------
Mr. P.V.'d
formerly Droll Troll
"Tim Shoppa" wrote in message
oups.com...
The other issue here, w/ electric meters:
Are *they* being fooled by power factors, wave
forms, pulses, etc. etc.???

Residential kWH meters use two coils, one producing a field
proportional to voltage and another producing a field proportional
current. The fields are perpendicular to each other; one induces eddy
currents in the circular disk that spins around, and the other actually
moves the disk. It's the product of the two fields - true power - that
causes the disk to rotate. They're very fine devices, and the legal
specification requires them to be accurate to better than 0.1%.

The commercial ones that rack up charges based on power factor etc. are
more complicated.

Tim.