On Fri, 7 Oct 2011 02:12:53 +1300 Chris Bannister <mockingb...@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 > > <mockingb...@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 -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20111006092106.313bb7b8@WizardsTower
