[TCML] Resonance Research Caps

[Bert Hickman]

Hi Phil,

There's nothing inherently wrong with using dry film capacitor 
technology as long as the voltage (stress within each capacitor element) 
is kept below corona inception along plate boundaries. By using clever 
series-connected interdigitated structures, modern single-winding 
metalized self-healing PP film caps have been made with operating 
voltages of over 8 kV/unit. Stacking batched of these in series allows 
construction of HV dry-film pulse caps of virtually any voltage. As long 
as the internal voltage and thermal stress per capacitor is not 
exceeded, the unit should have comparable reliability as oil-immersed 
counterparts, and the technology is conceptually no different than 
making MMC caps from individual dry-film PP snubber caps.

The key is that the design and manufacturing of the cap must be 
supported by a reputable manufacturing source. The pulse cap (and 
certainly the internal capacitor modules) must be made by a respected 
capacitor vendor such as CD, GAES, Aerovox, Plastic Capacitors, etc. The 
specific details of the capacitor sources and construction should be 
provided by Resonance Research before purchase, along with clear 
warranty protection by the original manufacturer to you, the end user.

Bert

Phil Tuck wrote:
> All,
> I have had several private replies on people's dealings with the individual
> concerned for which I am grateful, but the inquiry is more of a case of
> finding out what people think of the caps themselves, and particularly the
> lack of an oil as the dielectric.
> My friend has one that has worked well so far, but the lack of oil still
> always leaves a certain doubt in our minds.
> I don't think either of us would be willing to deal with him again.
>
> Regards Philip Tuck
> www.hvtesla.com.
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