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Re: NST Pulse Voltage



Original poster: "Chris Rutherford" <chris1@xxxxxxxxxxxxxxxxxxx>

I guess over driving NSTs is not the way forwards. Does anyone know a good place to get pole pigs from in the UK at scrap prices for repair? There is no way I could buy a new one, they are thousands.

Thanks

Chris R


----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx> To: <tesla@xxxxxxxxxx> Sent: Monday, August 15, 2005 7:05 PM Subject: Re: NST Pulse Voltage


Original poster: Steve Ward <steve.ward@xxxxxxxxx>

Hi Ed,

I think you may be right.  I wasnt looking at it from an energy or
power point of view, just "open circuit voltage" point of view.  I
remember balancing these factors when designing my high frequency
capacitor charging power supply, ie, trying to use the least copper
possible vs switching loss in the inverter and core loss from the
higher frequencies.

Steve

On 8/15/05, Tesla list <tesla@xxxxxxxxxx> wrote:
> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>
> "It *is* possible to run the NST at a higher frequency, thus > allowing
> more Volts for less seconds (the V*t product is per half-cycle of
> operation, and assuming the core resets before the next cycle). > So
> running at 120hz rather than 60hz will let you put in 500V for > 20kv
> out. "
>
> Since the leakage INDUCTANCE wouldn't change the leakage > reactance
> would be twice as high so the output current wouldn't increase. > For the
> same reason, the secondary would resonate with only 1/4 the > capacitance,
> so you couldn't get any more energy out of it than at 60 Hz. I > think
> those numbers work out but haven't thought them out very well.
>
> Ed
>
>
>