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Article #16547Re: DC to AC on large scale???
From: Scott Dorsey
Date: Mon, 25 Jan 1993 13:57
Date: Mon, 25 Jan 1993 13:57
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In article <1jp8uvINNb7s@coral.bucknell.edu> rose@bucknell.edu (philip rose `94) writes: >In article <1993Jan22.134237.13381@waikato.ac.nz>, phys2108@waikato.ac.nz writes: > >|> One way I believe they can do it is by using the dc to power a motor, which >|> then drives an ac generator. >|> Geoff. > >NOOOOO WAAAAAY!!! > >This is done with power electronics, no motors or generators are involved. Actually, motor generator sets were pretty common up until about ten years ago when efficient silicon stuff became available. You even see AC-DC conversion done with M-G sets from time to time, dating from the days before reliable rectifier stacks. Our local theatre has a pair of 100A sets that take three phase AC in and produce DC for the projection arcs. --scott
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Path: arc1-ca.pugleaf.net!sparky!uunet!news.larc.nasa.gov!grissom.larc.nasa.gov!kludge From: kludge@grissom.larc.nasa.gov (Scott Dorsey) Newsgroups: sci.electronics Subject: Re: DC to AC on large scale??? Date: 25 Jan 1993 13:57:48 GMT Organization: NASA Langley Research Center and Reptile Farm Lines: 17 Distribution: world Message-ID: <1k0rksINNc34@rave.larc.nasa.gov> References: <1993Jan21.095254.62979@cc.usu.edu> <1993Jan22.134237.13381@waikato.ac.nz> <1jp8uvINNb7s@coral.bucknell.edu> NNTP-Posting-Host: grissom.larc.nasa.gov