[Milsurplus] DC vs AC for power distribution

[C.Whitaker]

de WB2CPN
Will someone bring up the Great Battle between Tesla and
Edison over the standard to be used in New York City.
And maybe other cities.  That went to court all the way to the
top.  Also the mud slinging about the use of AC for the
Electric Chair.  Or was the other way around?  Magazines
had pictures of scorched skulls.
I been zapped by both things, AC and DC, but I'll tell you
now neither had a lasting effect.  I think.
73  Clete
+++++++++++++++++++++++++++++++++++++++++


On 5/1/2012 7:49 AM, Sheldon Daitch wrote:
> As we know, AC replaced DC distribution many
> years ago, because of the availability of power
> transformers, as this allowed the power to be
> generated at low voltages, stepped up to higher
> voltages and stepped back down to lower
> voltages for the customers.
>
> There is also a trend to go back to DC for high
> voltage distribution grid systems, to overcome some
> of the challenges of AC distribution systems, related
> to the reactive elements (Inductive and capacitive)
> in the AC distribution network and cables which
> place limitations of transmission line capacity
> and distance.  AC networks may also require
> additional equipment on the line for compensation,
> such as capacitors and  reactors.
>
> Advances in high voltage high current electronic
> components make DC distribution networks far
> more acceptable, with AC to DC conversion at the
> generator end, but more importantly, the DC to
> three phase AC conversion at the user or lower
> voltage distribution end of the networks.
> ______________________________________________________________
> Milsurplus mailing list
> Home: http://mailman.qth.net/mailman/listinfo/milsurplus
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:Milsurplus at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>