Article View: sci.energy
Article #2083Re: Why not 120 VDC ? Why invert?
From: Carl J Lydick
Date: Wed, 27 Jan 1993 15:07
Date: Wed, 27 Jan 1993 15:07
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In article <C1IpIq.DFF@usenet.ucs.indiana.edu>, amirza@bronze.ucs.indiana.edu (Anmar Caves) writes: >>If you use a 12 volt system you can start out with one set of batteries =>and add capacity in parallel. If you are on 120 volts dc you have 10 =>times the number of cells. The initial cost for a 120 volt system will be =>much higher. = =In addition, there will be ten times the number of cells in series. But the same total number of cells in your storage system. =Any one cell failure can ruin a bank. The same is true if the cells are connected in parallel: One shorted cell can load the rest enough to damage them. -------------------------------------------------------------------------------- Carl J Lydick | INTERnet: CARL@SOL1.GPS.CALTECH.EDU | NSI/HEPnet: SOL1::CARL Disclaimer: Hey, I understand VAXen and VMS. That's what I get paid for. My understanding of astronomy is purely at the amateur level (or below). So unless what I'm saying is directly related to VAX/VMS, don't hold me or my organization responsible for it. If it IS related to VAX/VMS, you can try to hold me responsible for it, but my organization had nothing to do with it.
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arc1-ca.pugleaf.net!sparky!uunet!news.univie.ac.at!scsing.switch.ch!univ-lyon1.fr!ghost.dsi.unimi.it!rpi!usc!elroy.jpl.nasa.gov!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARLReferences:
<1993Jan23.000753.14523@michael.apple.com> <1993Jan23.061702.18014@mnemosyne.cs.du.edu>,<C1IpIq.DFF@usenet.ucs.indiana.edu>Show Full Headers
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Path: arc1-ca.pugleaf.net!sparky!uunet!news.univie.ac.at!scsing.switch.ch!univ-lyon1.fr!ghost.dsi.unimi.it!rpi!usc!elroy.jpl.nasa.gov!nntp-server.caltech.edu!SOL1.GPS.CALTECH.EDU!CARL From: carl@SOL1.GPS.CALTECH.EDU (Carl J Lydick) Newsgroups: sci.energy Subject: Re: Why not 120 VDC ? Why invert? Date: 27 Jan 1993 15:07:51 GMT Organization: HST Wide Field/Planetary Camera Lines: 22 Distribution: world Message-ID: <1k68g7INN2ei@gap.caltech.edu> References: <1993Jan23.000753.14523@michael.apple.com> <1993Jan23.061702.18014@mnemosyne.cs.du.edu>,<C1IpIq.DFF@usenet.ucs.indiana.edu> Reply-To: carl@SOL1.GPS.CALTECH.EDU NNTP-Posting-Host: sol1.gps.caltech.edu