Re: [TCML] Looking for pulse cap

["Quarkster" <quarkster@xxxxxxx>]

Matt -

Eh??

Clearly, my post contained no answers whatsoever, only questions to try to 
gain a better understanding of Dave's rather unique capacitor requirements.

Most of the large DRSSTCs that I've seen get by using a cap with a lower 
voltage rating, but they may not actually be attaining a primary current of 
2400A.

Regards,
Herr Zapp
----- Original Message ----- 
From: <mddeming@xxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Monday, September 14, 2009 5:37 PM
Subject: Re: [TCML] Looking for pulse cap


> Hi Herr Zapp,
>
>
>
> Interesting questions, but how do they relate to answering the question 
> Dave asked?
>
> Matt D.
>
>
>
> -----Original Message-----
> From: Quarkster <quarkster@xxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Sent: Mon, Sep 14, 2009 4:36 pm
> Subject: Re: [TCML] Looking for pulse cap
>
>
>
> Dave -?
> ?
> A few questions:?
> ?
> 1. How are you calculating the voltage requirements for the tank cap??
> ?
> 2. How large a multiplier are you using to define the capacitor's voltage 
> margin (safety factor)??
> ?
> 3. What is the manufacturer's voltage rating for the IGBTs you will be 
> using??
> ?
> 4. What is the calculated peak primary current??
> ?
> Regards,?
> Herr Zapp?
>
>
>
>
> ----- Original Message ----- From: "Dave Leddon" <dave@xxxxxxxxxx>?
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>?
> Sent: Monday, September 14, 2009 11:19 AM?
> Subject: [TCML] Looking for pulse cap?
> ?
> Hi all,?
> ?
> ? I'm working on a fairly large DRSSTC and I find that an MMC adequate to
>
> ?the task may be out of my financial reach. If I were to push the igbt
>
> ?bridge to its limits I would require a cap rated at 20 kv at 0.5 mfd.
>
> ?This begins to sound like pole pig territory. If anyone has a cap like
>
> ?this that they would consider selling, or if they know of a resource that
>
> ?I can pursue, please let me know.?
> ?
> Thanks,?
> Dave?
> Pleasanton, Ca?
> ?
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