Rumble wrote:
wrote:

snip
When you measure the power factor, are you measuring it for the device
in question, or are you measuring the average for the neighbourhood?
A plug-in device can only measure it for the load running through it.



Are you suggesting it somehow compensates for the power factor of the
supply automatically?

T


Is this a trick question? The supply doesn't have a power factor; only
the load has a power factor.

Its an odd question granted, although you could argue that the supply
may have a distorted voltage waveform as a result of local high current
non-power factor corrected loads. This (and other things) will introduce
harmonic noise to the supply. The result would be lowering of the
effective power factor seen at the load.


--
Cheers,

John.

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