Re: [Phys-l] Wiki. is wrong

[chuck britton <cvbritton@mac.com>]

True only if volts & amps were calculated as complex values??
Phasors?

(Oh, AND of course IFF that "-" between "Volt" and "amperes" 
indicates MULTIPLICATION rather than subtraction  ;-)  )

wiki is there to be IMPROVED upon by those who know!!

My understanding is that most residential meters DO just multiply rms 
volts & amps - taking no account of the reactive, phase difference.

Distribution systems DO need to be designed and built in terms of 
Vmax and Imax.
Phase differences make for inefficient.
SOMEbody has to pay for the 'excess' V & I that gets designed into 
the dist. system.
Commercial users are not a gullible as res. users so THEY insist on 
(and GET) True Power meters.)

(I've heard rumors that a commercial user can get a break on their 
rates if they have a capacitive rather than inductive reactive load. 
It helps balance all those motors that MOST industrial users have.)
.
At 5:20 PM -0700 7/24/11, Bernard Cleyet wrote:
> "Volt-amperes measures all power passed through a distribution 
> network, including reactive and actual. This is equal to the product 
> of root-mean-square volts and amperes."
>
> Electricity meter - Wikipedia, the free encyclopedia
>
> No?
>
> bc a result due to a friend's going solar.
>
>
> p.s. power is power not imaginary power  -- there is virtual work tho.?
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