pltrgyst wrote:
> On Mon, 06 Feb 2006 15:50:33 +1100, Bill > wrote:
>
> >Sure they do, since Watts is directly converted to horsepower: 749 Watts
> >is 1 horsepower. In the case of a food processor, you'll only have the
> >few % losses in the gearbox to derate it from the advertised wattage to
> >useful work. Given the supply voltage, the current drawn, and the power
> >factor or the load you can work out how much energy is going into that
> >appliance to be converted to useful work.
>
> It's watts of _output_ that may be converted to horsepower; what manufacturers
> provide is watts of _input power consumed_.

Shouldn't consumers insist on manufactureres providing output wattage
and HP? I am really sick of the seller getting away w/o having to
tpovide useful info.

I just don't believe in blind buying things via trial and error.

How much lobbying would it take to get such info printed?


>Not all motors have the same
> efficiency, and efficiency varies over a wide range. Without knowing that
> efficiency, you have no idea how much power a motor is producing.
>
> And then on top of that you've got the drivetrain losses, etc.
>
> -- Larry