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- From: hagerman@ece.cmu.edu (John Hagerman)
- Subject: Re: History of AC vs DC Power
- In-Reply-To: steve@pepe.aero.org's message of Wed, 11 Nov 1992 15:44:25 GMT
- Message-ID: <HAGERMAN.92Nov11131243@rx7.ece.cmu.edu>
- Sender: news@fs7.ece.cmu.edu (USENET News System)
- Organization: Carnegie Mellon University
- References: <1992Nov11.154425.8399@speedy.aero.org>
- Date: Wed, 11 Nov 1992 18:12:43 GMT
- Lines: 17
-
- In article <1992Nov11.154425.8399@speedy.aero.org> steve@pepe.aero.org (Steve Sedlacek) writes:
-
- > Why is our power system completely AC?
-
- Simple answer:
-
- (1) Efficient transmission requires high voltages, safe use requires
- low voltages; transformers were by far the easiest and most efficient
- way to convert. (Wood is still used in their construction!)
-
- (2) Tesla invented the induction motor: high efficiency and long life
- implied money for the maker. Westinghouse was the maker, and its size
- allowed it to exert a large influence on the power industry.
-
- - John
- --
- hagerman@ece.cmu.edu
-