Re: Maxwell cap oil is....

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

Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>" <jimlux-at-earthlink-dot-net>

but is it polypropylene in their big energy discharge (i.e. Series C) or
good old kraft paper.

Tesla list wrote:
> 
> Original poster: "Lau, Gary by way of Terry Fritz <twftesla-at-uswest-dot-net>"
<Gary.Lau-at-compaq-dot-com>
> 
> I would think that the dielectric constant of whatever oil fills Maxwell
> caps is of little actual importance.  The dielectric material is
> polyproplylene, and it's this that determines how much capacitance/volume
> you get.
> 
> Gary Lau
> Wellesley, MA USA
> 
> Original poster: "Jim Lux by way of Terry Fritz <twftesla-at-uswest-dot-net>"
> <jimlux-at-earthlink-dot-net>
> 
> Which, of course, is what Maxwell advertises in their literature (No PCB's,
> we use Castor oil) (and on the labels of some of the capacitors)... As a
> practical matter, Castor oil has a dielectric constant of around 4-6,
> roughly double what mineral oil has, at the same breakdown voltage, so you
> get twice the capacitance in the same size.
> 
> <snip>