RE: Any Interest in 30-40 kVA Power Supplies (fwd)

[<sroys@xxxxxxxxxxxxxxxxx>]

---------- Forwarded message ----------
Date: Fri, 8 Oct 2004 12:32:53 -0500
From: Carl Litton <Carl_Litton@xxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: RE: Any Interest in 30-40 kVA Power Supplies (fwd)

Thanks folks for the cap info.  Just got the user's manual schematic on
the transformer, charging circuit, and the capacitors.  Caps have high
voltage diode array inside (CW multiplier) which explains AC in and DC
out.  Also, it turns out that EACH can in 2 uF for a total of 4 uF at
125 kV.  

Yep, I like the advice that said this is a might tooooo big for the TC
project.

Thanks again,


Carl

Carl Litton
Hilton Hotels Corporation
901-374-5747

-----Original Message-----
From: High Voltage list [mailto:hvlist@xxxxxxxxxx] 
Sent: Friday, October 08, 2004 11:53 AM
To: hvlist
Subject: Re: Any Interest in 30-40 kVA Power Supplies (fwd)

Original poster: <sroys@xxxxxxxxxxxxxxxxx>



---------- Forwarded message ----------
Date: Thu, 07 Oct 2004 15:32:18 -0700
From: brianb <brianb@xxxxxxxxxxxxx>
To: High Voltage list <hvlist@xxxxxxxxxx>
Subject: Re: Any Interest in 30-40 kVA Power Supplies (fwd)

Any flashover on a high current device such as a pulse cap
IS exciting to say the least. Some of you may remember my
little mishap with my 67kj pulse cap.

http://www.briananddebbie.com/images/Backyard%20Science/Quarter%20Shrink
er/Accident/accident.htm

Regards,
Brian B.


----- Original Message Follows -----
From: "High Voltage list" <hvlist@xxxxxxxxxx>
To: "hvlist" <hvlist@xxxxxxxxxxxxxxxxx>
Subject: Re: Any Interest in 30-40 kVA Power Supplies (fwd)
Date: Thu, 7 Oct 2004 08:23:31 -0600 (MDT)
> 
> 
> Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> 
> 
> 
> ---------- Forwarded message ----------
> Date: Tue, 05 Oct 2004 09:47:06 -0500
> From: Bert Hickman <bert.hickman@xxxxxxxxxx>
> To: High Voltage list <hvlist@xxxxxxxxxx>
> Subject: Re: Any Interest in 30-40 kVA Power Supplies
> (fwd)
> 
> High Voltage list wrote:
> > Original poster: sroys@xxxxxxxxxxxxxxxxx
> > 
> > 
> > 
> > ---------- Forwarded message ----------
> > Date: Tue, 5 Oct 2004 07:09:37 -0600
> > From: Gomez Addams <gomez@xxxxxxxxxxxx>
> > To: High Voltage list <hvlist@xxxxxxxxxx>
> > Subject: Re: Any Interest in 30-40 kVA Power Supplies
> > (fwd) 
> > 
> > On Oct 4, 2004, at 8:43 PM, High Voltage list wrote:
> > 
> > 
> >>Original poster: <sroys@xxxxxxxxxxxxxxxxx>
> >>
> >>
> >>
> >>---------- Forwarded message ----------
> >>Date: Mon, 04 Oct 2004 11:02:21 -0700 (PDT)
> >>From: Peter Lawrence <Peter.Lawrence@xxxxxxx>
> >>To: hvlist@xxxxxxxxxx
> >>Subject: Re: Any Interest in 30-40 kVA Power Supplies
> (fwd) >>
> >>Carl,
> >>     what you have here is "the mother of all coin
> shrinker"  >>capacitors,
> >>
> >>Joules = 1/2 * C * (V)**2,   so if my math is correct:
> >>
> >>    1/2 * (2 * 10**-6) * (125,000)**2   =>   15,625
> Joules >>
> >>do the web search yourself, but IIRC it takes 4000 to
> 8000 Joules to  >>shrink
> >>a quarter.
> > 
> > 
> > Except that these caps may not be designed for fast,
> > very high current  discharges.
> > 
> > [Optimally ;-)  And yes, XRay filter caps aren't likely
> > to be ultra-low inductance pulse caps.  But I imagine
> > that if you whack anything with 15kJ, somethings going
> > to give.  A capacitance of 2uF seems a bit large for a
> > coil though, and the cable will have it's own, not
> > insubstantial, capacity to add as well.  SRR] 
> > 
> > 
> > 
> > .
> > 
> 
> Yep.
> 
> But applying 125 kV across a typical 1" x 1" 10-turn work
> coil would  be a bit of a challenge. For magnet wire, the
> upper flashover limit is  ~40-45 kV (per fellow
> "shrinkers" in Texas). But a flashover followed  by a 15
> kJ capacitor explosion could be very exciting... :^)
> 
> -- Bert --
> -- 
> ----------------------------------------------------------
> ----------- We specialize in UNIQUE items! Coins shrunk by
> huge magnetic fields, Lichtenberg Figures ("Captured
> Lightning" in acrylic), & Out-of-Print technical Books.
> Stoneridge Engineering - http://www.teslamania.com
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>