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Re: More real experiments
Thanks for posting this Richard,
You gap loss measurement is more
what I would have expected now I _really_ know what the gap is like.
As I say, I think getting more bang for buck _is_ pushing the
envelope.
Nice one,
Malcolm
<snip>
> Due to my using a variac and only allowing the AC line voltage to reach
> 28 volts in to the neon's primary, I measured a peak voltage out from the
> transformeers secondary of 2640 volts.
>
> This showed up as the max voltage across the non-firing gap. Firings at
> the gap showed a rather immediate fall to ~200 volts. The current
> transformer indicated a peak current in the system at this point of ~80
> amps. Thus under the optimal conditions the gap had a lowest possible
> resisitance of 2.5 ohms. (The gaps were hardly making any noise!) For the
> instant of max turn on, the gap consumed 16,000 watts of peak energy.
> The peak tank energy in our little 15VA system would have been on the
> order of 160,000 watts. based on a 2KV firing point and 80 amp tank
> current. 10% losses figured this way.
>
> The scope was set up to yeild a mathed third trace as A X B yielding
> volt amps. This was intergrated by hand with time to yield a total sine
> consuption of energy on the order of 1.6VA. With the power factor
> corrected primary hooked to a watt meter we read 15.1 VA while the system
> was on (auto integrating). This shows that we lost about 10% of the
> input energy in the gap on average. Another cross confirmation.
<more snip>