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Re: Cap discharge time: was: Re:NEW break-rate/power tests



Experienced guys please correct me if I am wrong.

If your RSG has got a quench time too short, you will leave some relevant
charge on the primary capacitor and your TC performance will be poor. So
you forget about this case.

If your quench time is correct (or too long) you will be left with (maybe)
say 100 V on the capacitor, which is really not relevant in any respect.
And this does NOT depend on your topology. You DO want to transfer all the
capacitor energy (voltage) to the secondary, basically.

The real issue is how much the power supply is capable of charging the
capacitor between RSG breaks. This depends on RSG break rate, power supply
capabilities and capacitor value.






tesla-at-pupman-dot-com on 09.03.99 23:00:07

To:   tesla-at-pupman-dot-com
cc:    (bcc: Marco Denicolai/MARTIS)
Subject:  Re: Cap discharge time: was: Re:NEW break-rate/power tests




Original Poster: Steve Roys <sroys-at-umaryland.edu>

On Mon, 8 Mar 1999, Tesla List wrote:

> Original Poster: "Marco Denicolai" <Marco.Denicolai-at-tellabs.fi>
>
> Reinhard,
>
> your statement is correct in these terms:
>
> a break rate of 4 kHz will allow the capacitor to discharge less than a 2
> kHz break rate. Break rates below 1 kHz will almost all allow the
capacitor
> to completely discharge.
>

Isn't this dependent on your system topology?  If you have a single cap in
your primary circuit, then this is true.  Otherwise, as in a TCBOR
"equidrive" system with two caps, one on each leg, there is no direct
path for any residual DC to bleed off.  The capacitor discharge would
totally be a function of your gap - if your gap stopped conducting while
there was substantial voltage left on the cap, the caps would stay
substantially charged.

Steve.