John, I rarely take exception ot your responses as they are usually spot on. However, I have two issues with this response.
First with respect to DC for long distance transmission of power. In fact on the west coast there is a DC transmission line from the NW to southern California which is a thousand mile long 1 million volt line. The reason for DC is to avoid the corona losses that occur when sending high voltage AC.
Second is notion that DC can not be 'transformed' into another voltage. This is true in the sense that there is no simple equialent of a transformer, but devices like inverters which convert DC to AC and back do perform the same task - albeit with considerably more complexity.
"Keep up the great responses. I always enjoy reading them.
Mornin Rich, heres the answer to your good question
Edison tried to use DC for long distance distribution but the I squared R Power losses (and huge copper cables) were too much to overcome. However, Tesla (I think George Westinghouse was also in the picture) proposed high voltage AC with far lower current and then used transformers to reduce it down to 120 or 240 volt. Tesla won becaue while you can transform AC YOU CANT TRANSFORM DC.
That may be little known among laymen but sparkies are well aware that Edisons DC distribution system was doomed to failure due to power losses and inefficiency and the cost of huge copper wires versus what Tesla proposed i.e. high voltage AC distribution with its low current and ability to use step down transformers.
We sell tractor parts! We have the parts you need to repair your tractor - the right parts. Our low prices and years of research make us your best choice when you need parts. Shop Online Today. [ About Us ]
Today's Featured Article - The Day Mom Drove the 8N - by Brian Browning. My Dad was wanting to put in a garden but couldn't operate the 8N and handle the old horse drawn plow he had found and rigged up to use with the tractor. Well, he decided to go get Mom out of the house and have her drive the tractor while he walked behind the plow. You got to understand that while my Mom is a hard worker who will always help whenever she can... she had never operated farm machinery before that day. Dad got her out there, explained how the clutch was the same as in our o
... [Read Article]
Latest Ad:
Oliver 550 Diesel runs like a watch three point hitch pto engine gone threw about two hundred hours ago nice clean tractor
[More Ads]
All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy
TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.
