[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: High Power SRSGs



Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi David,

Maybe, I will start out with two stationary electrodes and see how things go. I'm thinking that the closer the gap spacing is, the less power is lost across the gap. Maybe having 4 gaps just means twice the power lost than with two gaps (everything else the same). If I dont get power arcing with two stationary electrodes, then maybe I'm done. But then again, maybe there are quenching considerations wanting a static gap in series with the RSG.

I like your pictures. Did you press the tungsten into the rotor material or do you have a rod holder on the back side. I'm also looking for elegant ways to mount the tungsten into the G10 rotor. I used brass bolts on my smaller SRSG, but 3/8 tungsten would need 5/8 brass to mount the same way.

Gerry


Original poster: DRIEBEN@xxxxxxxxxxxxxxx
With my Green Monster coil, which is powered by a
15 kVA distribution "pole pig" transformer, I have
an ARSG with a 2 stationary and 8 flying electrodes
that form 2 gaps. This is placed in series with a
forced air cooled, RQ type of stationary SG which
consist of (4) 4" long x 2" diameter copper pipes
that form 3 gaps. O yea, the 2 stationary electrodes
of the rotary gap are each 1/2" diameter x 3" long tungsten
carbide drilling blanks and the 8 flying electrodes are
each 3/8" diameter x 2.5" long tungsten carbide drilling
blanks. I originally ran with the rotary gap alone,
without the RQ stationary gap in series. The main reason
that I added the RQ stationary gap was not due to the
tell-tale "ring of fire" sign of power arcing at the
rotary gap but because of the extreme heat that was
retained by the rotary gap electrodes immediately af-
ter shutdown. Of course, the coil was not fully tuned
in when I was running without the RQ stationary gap in
series either, so the excess heating of the rotary
stationary electrodes could have been due to the
poor tuning since more energy was being wasted in the
primary circuit instead of going to the output streamers.
I haven't tried running it without the seriesed RQ gap
since fine tuning it, yet. You can check out the coil
at www.dawntreader.net/hvgroup/david/gm.

David Rieben