Re: [TCML] Propeller-Style SRSG eats Tungsten Rods @ 10kVA

[DC Cox <resonance@xxxxxxxxxxxx>]

By the time its glowing red your quench factor is horrible.

Use 1/2" tunsten molydenum with threads into 1/2" brass rod feedthru (the
G-10).  1" size on stationary gaps. Above 10 kVA we use only 1" dia.
tungsten / molydenums with 2" dia. stationarys, then go to 4 gaps --- one on
each side of the wheel.    Big coils are definitely not cheap to build!!

Dr. Resonance




On Thu, Oct 14, 2010 at 3:15 PM, Joe Mastroianni <joe@xxxxxxxxxxxxxx> wrote:

>
> I recognize the glowing orange circle and the smoke, which in my case meant
> more power consumed in the gap than going out the top of the secondary.
> Some tuning fixed that in my case.  It wasn't just the power increase.
>  With the primary tuned, I get no more smoke.  Just what I presume is
> standard erosion.  Now I'm just considering the other issues of gap
> quenching that have been mentioned here on the list.  I am reengineering my
> ARSG to maximize vibrational stability and higher current.  Will test that,
> hopefully, this weekend.
>
> Joe
>
> This happens to a propeller style 200bps SRSG (3000rpm), if to much power
>> is applied to its much to small pure tungsten rods. They are 4mm in
>> diameter. Watch the white smoke, its Tungsten-Oxide! I now have to replace
>> them by 8mm rods, which should be capable of processing 10kVA input power.
>>
>
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