Re: [LUG] UPS, reprise

[andy@xxxxxxxxxxxxxxxxxxxxxx]

mpe@xxxxxxxxxxxxxxxxxxxxxx wrote:
> > > ===== Original Message From Steve Marvell <steve@xxxxxxxx> =====

> > I was reading a rag with ups's in, and it said something like "to convert 
> > watts to VA, multiply by 1.4". Is this a ploy to sell more expensive UPS's,

> Most likely 1.414 or even SQRT(2).

> > if I remember correctly, Power (W) == Volts (V) * Amps (A)

> It's the difference between the peak and RMS voltage of
> sinewave AC. 

peak power is 2* rms power ((sqrt(2)*Vrms)*(sqrt(2)*Irms))

(its a little number game stereo manufacturers use to sell there goods,
my little 20W(rms) per channel amp, is 40W(peak) per channel, is 80W(peak) total, if 
it were in a shop, I'm sure it would have 80W on the box)

--Andy Weir-------------------------------------------------------------
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