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- Newsgroups: sci.environment
- Path: sparky!uunet!wupost!emory!wa4mei!ke4zv!gary
- From: gary@ke4zv.uucp (Gary Coffman)
- Subject: Re: Enviro-industry on ABC
- Message-ID: <1992Dec26.181654.15814@ke4zv.uucp>
- Reply-To: gary@ke4zv.UUCP (Gary Coffman)
- Organization: Destructive Testing Systems
- References: <1992Dec16.183228.13812@vexcel.com> <1992Dec16.192912.473@nsisrv.gsfc.nasa.gov> <1gofcoINNik@gap.caltech.edu> <JMC.92Dec16171212@SAIL.Stanford.EDU> <1992Dec21.164325.9562@ke4zv.uucp> <JMC.92Dec21173231@SAIL.Stanford.EDU>
- Date: Sat, 26 Dec 1992 18:16:54 GMT
- Lines: 24
-
- In article <JMC.92Dec21173231@SAIL.Stanford.EDU> jmc@cs.Stanford.EDU writes:
- >
- >1000MWe is about one big power plant. A situation in which one part
- >of the country is supplying another part of the country with a substantial
- >part of its electricity requirements would require at least 10 times that
- >capacity.
- >
- >What voltage was assumed? I assume the transmission was taken to be dc.
- >Are there any losses other than resistive, e.g. ionization losses from
- >the very high voltage?
-
- Typical EHV DC lines run at 800 kV to 1.5 MV. At the lower end of the
- scale, corona losses are negligble. At the higher end of the scale,
- greater care must be exercised to make sure the installed lines are
- smooth and free of discharge points. Birds often try to land on these
- lines, but the electric field is so intense near the cable that they
- are literally pushed away from the wire.
-
- Gary
- --
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