Post by thread:Really: [OT] off topic AC Power

And only recently have we the switching technology (to convert to higher frequency AC and back) to manage HV DC distribution to some advantage (less radiation losses - depends also on what your religious beliefs are about the danger of fields). I think they're using DC SWER distribution somewhere are they not? Cheers, Paul B.

Hi Paul, > And only recently have we the switching technology (to convert to > higher frequency AC and back) to manage HV DC distribution to some > advantage (less radiation losses - depends also on what your religious > beliefs are about the danger of fields). > > I think they're using DC SWER distribution somewhere are they not? Here are a few links to the Cahora Bassa project and other HVDC transmission. http://www.mg.co.za/mg/news/96dec1/20dec-bizcahora.html http://www.ev.siemens.de/uk/html/b1232.htm I think it is the longest DC transmission line in the world at 875 miles (1400 km) I think it has just recently come back on line after lying idle for the duration of the Mozambiquan civil war (10+ years) There is some acrimony about exactly how much Escom (south african electricity supply commission) should be paying for the electricity as they still have a surplus and have also put up money to get the system back on line. Cheers -- Kalle Pihlajasaari spam_OUTkalleTakeThisOuTip.co.za http://www.ip.co.za/ip Interface Products P O Box 15775, DOORNFONTEIN, 2028, South Africa + 27 (11) 402-7750 Fax: 402-7751 http://www.ip.co.za/people/kalle DonTronics, Silicon Studio and Wirz Electronics uP Product Dealer