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Re: [TCML] Voltage - Gap
Ah yes,
I remember seeing that picture now. So my orientation was wrong in my other post. But my reasoning still stands. You cap looks to be under the primary by under 8 inches or about that. With the large surface area of the plates exposed to the large magnetic field of the primary coil. Maybe the eddy currents had an effect on enhanced heating, maybe not. But its probably something we should worry about when designing our layouts.
I think I will take your suggestion on your new choice of capacitor. (Probably really expensive right?)
But first I am going to finish digging threw the thermal stuff relating to the mmc capacitors. If I can get away with fewer mmc caps for short runs. I may take that route instead. But in the end which ever is cheaper.
-Jay
Sent from my HTC Inspire™ 4G on AT&T
----- Reply message -----
From: "Joe Mastroianni" <joe@xxxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Subject: [TCML] Voltage - Gap
Date: Fri, Feb 3, 2012 10:43 am
You know, that was another interesting point someone brought up at the time, if this is what you mean by "alignment"...
I was running the cap with it laying flat, with the terminals horizontal, not "upright." It was suggested this was not the preferred orientation.
I had seen pics of someone (I think Steve Ward) having built a large Marx Generator, with lots of these same caps laying flat and so simple mindedly I just popped mine down haphazardly. However, that's a Marx Generators are a very different application. And one should never do anything without forethought when dealing with Coil voltages/currents.
I learned my lesson.
Joe
On Feb 3, 2012, at 2:26 AM, Clive Penfold wrote:
> A valid point that someone made some time ago is that there may be a specific alignment of the capacitor that would cause large circulating currents to be set up inside, which could generate heat, causing it to burst
>
>
> Regards,
>
> Clive
>
>
>
> ________________________________
> From: "jhowson4@xxxxxxxxxxx" <jhowson4@xxxxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Sent: Friday, 3 February 2012, 1:22
> Subject: Re: [TCML] Voltage - Gap
>
> That's interesting Joe, hmmmm
> I wonder why some people seem to never have problems with the maxwells and you have had two incidents.
> I would love to run your coil parameters threw my sheet and see how the outputs compare to mine and other peoples coils. If your willing to provide your parameters that is, let me know and I will send you a message with the details I would need.
>
>
>
>
> Thanks,
> John "Jay" Howson IV
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