Re: [OT] British vs. American English
On Fri, 7 Oct 2011 02:12:53 +1300
Chris Bannister <mockingbird@earthlight.co.nz> wrote:
> On Thu, Oct 06, 2011 at 07:56:22AM +0000, Virgo Pärna wrote:
> > On Thu, 6 Oct 2011 02:35:59 +1300, Chris Bannister
> > <mockingbird@earthlight.co.nz> wrote:
> > >
> > > For crossing "large" distances DC is used, whereas AC is more
> > > useful for local distribution.
> > >
> >
> > I thought, that DC is better for transmission (less losses).
> > And higher voltage is also better (less losses). And AC won,
> > because of one device: direct current transformer ;)
>
> Not sure I understand what you are saying. Unless the wrong terms are
> being used, but transformers "hate" DC. Plus also, think of voltage
> like water pressure: i.e. the higher the pressure the further the
> water travels. Also consider the Litz effect; higher frequencies tend
> to travel along the outer surface of the conductor(s), hence, multi
> strand cable etc.
>
There's also the fact that exposed (non-insulated) DC connections
corrode like there's no tomorrow while AC connections don't.
Cybe R. Wizard
--
Registered GNU/Linux user # 126326
Registered Ubuntu User # 2136
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