View Single Post
Old 03-21-10, 11:45 PM   #18
Xringer
Lex Parsimoniae
 
Xringer's Avatar
 
Join Date: Feb 2009
Location: Woburn, MA
Posts: 4,918
Thanks: 114
Thanked 250 Times in 230 Posts
Default

The main reason that utilities use AC is because very high voltage can be used.
High voltage and low amperage can deliver the power, to transformers.
(Without the use of monster cables).

Those transformers are about 99% efficient and can step-down the voltage so
we can use it in our homes.

DC melts transformers..
Xringer is offline   Reply With Quote