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Help with Pig Training
Hi world,
OK, so I finished my transformer. 13.5 kV, probably up to 7.5 kVA without
problems.
Ballasting with arc-welder (140A max) and 1 ohm resistance (not pure as
heater wire around ceramic formers). In line A&V meters. Short = Jacob's
ladder pulls about 12-13A ......... quite impressive too!
Now I'm in the process of building a larger coil & have tried some
preliminary runs but was getting little joy. So, thought I would run it
into my 6" setup as this is now a fairly predictable arrangement.
Using either static gap, or RSG, get intermittent functioning. Now this is
NOT tank firing and intermittent break-out from toroid, this would be
perfectly understandable. The TANK fires intermittently with synchronous
secondary breakout, ie. there will be a short 3-5s burst, then quiet, 1-2s
burst then quiet, and so on. Don't get the continuous feed to the
secondary I used to get with my NST supply, and thus there is no
establishment of ion channels and reinforcement to longer streamers ......
Mind you, the single-shots are intense ;-)
The NST supply was 15 kV / 120 mA + R-C protection with a 0.024 tank cap.
I'm using the same tank-cap, tapped at the same primary turn, just
substituting power source. Have safety gaps each line to earth + filter
caps (no R element for pig). Ammeter bounces to 10-15A on firing. Effect
is independent of RSG speed.
Any ideas ??
Thanks
Mark
http://www.cobweb-dot-com.au/~dkfinnis