On 03/10/11 20:48, Richard wrote:
I suggest you all check on the high voltage feed from Canada in to the New York region. 0Hz
Transmission links between systems controlled by different electrical authorities are typically DC. This is to do with fact that to connect AC links together both sides need to be synchronised (in phase and frequency) where as with DC they don't
-- Alan Chandler http://www.chandlerfamily.org.uk