Re: [TCML] Odd VTTC Streamer Behavior

[futuret@xxxxxxx]

Yes, voltage may have been over the rating considering
everything.  The plate current may have been
1.2 amps or so, but resonant tank currents would
be much higher.

John


-----Original Message-----
From: Jim Lux <jimlux@xxxxxxxxxxxxx>
To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>; tesla@xxxxxxxxxx
Sent: Tue, 21 Oct 2008 6:32 pm
Subject: Re: [TCML] Odd VTTC Streamer Behavior




-----Original Message-----
> From: futuret@xxxxxxx
> Sent: Oct 21, 2008 2:06 PM
> To: tesla@xxxxxxxxxx
> Subject: Re: [TCML] Odd VTTC Streamer Behavior
>
> When I tried using a an 8kV rated mica transmitting cap
> with a 6kVAC power supply, the transmitting cap failed.
> So that may give some idea of what voltage ratios can
> be withstood in a VTTC.  Of course each VTTC maybe
> slightly different, etc.


6kV * 1.414 pk/rms = 8.5kV > 8kV..

It's overvoltaged by a bit, but there's probably some margin in the 
rating on
the mica cap, at least voltage wise. OTOH, if you're looking at some 
kVAC RMS
riding on top of a DC or line frequency offset, you could have twice 
that much.
How much current were you passing through it?


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