Re: Inside A Plasma Cutter (Must See Pictures for SSTCers!)

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jim Mitchell" <Electrontube-at-sbcglobal-dot-net> 

Oh they're not that bad... my camera's macro mode wasn't working
unfortuently... it's a few years outdated.

Regards - Jim Mitchell
----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Monday, June 07, 2004 9:28 AM
Subject: Re: Inside A Plasma Cutter (Must See Pictures for SSTCers!)


 > Original poster: "Richard Modistach" <hambone-at-dodo-dot-com.au>
 >
 > would have been interesting to look at,
 > pity the pics are so badly out of focus.
 >
 > regards
 > richard
 > aus
 >
 >
 > ----- Original Message -----
 > From: "Tesla list" <tesla-at-pupman-dot-com>
 > To: <tesla-at-pupman-dot-com>
 > Sent: Monday, June 07, 2004 9:20 AM
 > Subject: Re: Inside A Plasma Cutter (Must See Pictures for SSTCers!)
 >
 >
 >  > Original poster: "Jim Mitchell" <Electrontube-at-sbcglobal-dot-net>
 >  >
 >  > Well,  It draws 30A at 240V.  So Do the math and you see that its
drawing
 >  > 7.2kW max (I'm not sure if this is constant).
 >  >
 >  > Yes those two links are incorrect,  Thanks for pointing that out.
 >  >
 >  > I believe those diodes aren't rectification,  as the manual states "The
 >  > output of this device is high voltage/high frequency...)  And the +
 >  > electrode goes right to the output transformer.
 >  >
 >  > Regards - Jim Mitchell
 >  > ----- Original Message -----
 >  > From: "Tesla list" <tesla-at-pupman-dot-com>
 >  > To: <tesla-at-pupman-dot-com>
 >  > Sent: Sunday, June 06, 2004 1:08 PM
 >  > Subject: Re: Inside A Plasma Cutter (Must See Pictures for SSTCers!)
 >  >
 >  >
 >  >  > Original poster: Matthew Smith <matt-at-kbc-dot-net.au>
 >  >  >
 >  >  > Jim Mitchell wrote:
 >  >  > >Today I opened up my Speedway 30A plasma cutter to see what sort of
 >  >  > >topology it used to work.
 >  >  >
 >  >  > Interesting!  What sort of power/output voltage does this thing
 > produce?
 >  >  >
 >  >  > Are those diodes rectifying the HV, or just part of a really meaty
 >  > snubber?
 >  >  >
 >  >  >
 >  >
 >
 ><http://www.hot-streamer-dot-com/electrontube/plsmc7.jpg>www.hot-streamer-dot-com/e
 >  > lectrontube/plsmc7.jpg
 >  >  >
 >  >
 >
 ><http://www.hot-streamer-dot-com/electrontube/plsmc8.jpg>www.hot-streamer-dot-com/e
 >  > lectrontube/plsmc8.jpg
 >  >  > >
 >  >  > For those who haven't worked it out, these two links should have a /
 >  >  > between the plsmc and the digit.
 >  >  >
 >  >  > Looks so simple - probably find SSTC design on this list has
overtaken
 >  >  > commercial stuff like this!
 >  >  >
 >  >  > Cheers
 >  >  >
 >  >  > M
 >  >  >
 >  >  > --
 >  >  > Matthew Smith
 >  >  > Kadina Business Consultancy
 >  >  > South Australia
 >  >  >
 >  >  >
 >  >  >
 >  >
 >  >
 >  >
 >
 >