Re: Arrays of motor capacitors

To: tesla-at-pupman-dot-com
Subject: Re: Arrays of motor capacitors
From: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net> (by way of terryf-at-verinet-dot-com)
Date: Sat, 29 Aug 1998 11:27:46 -0600
Approved: terryf-at-verinet-dot-com

to: Aric

Motor start caps are not designed to take the severe and rapid voltage
reversals that Tesla oscillator circuits produce.  You would be better
served with a pulse duty rated capacitor with a polyethylene or
polypropylene or mica dielectric material.

DR.RESONANCE-at-next-wave-dot-net


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> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-pupman-dot-com
> Subject: Arrays of motor capacitors
> Date: Friday, August 28, 1998 4:37 PM
> 
> Original Poster: Aric_C_Rothman-at-email.whirlpool-dot-com (Aric C Rothman) 
> 
>      I'm contemplating assembling a capacitor for TC use by serially 
>      chaining a bunch of equal-valued motor run capacitors.  The total 
>      voltage rating (at 60 Hz) would be 99,000V (conservatively derating
by 
>      half to 49,500) for TC service, which, assuming a low absorption 
>      dielectric, should work nicely in a 15kV NST powered coil.
>      
>      I believe the dielectric in the caps is PP, and they are oil filled.
 
>      I would put them in a wooden box with compartments to isolate their 
>      cans.
>      
>      Will such a setup work, or will I have a bunch of flaming oil-filled

>      grenades?
>      
>      TIA,
>      Aric
>      
>      BTW, the price for these caps makes them an attractive alternative
to 
>      a commercial cap, maybe even a homebrew...if they'll work...
>