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4hv.org :: Forums :: Tesla Coils
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Transformer Failure?

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William Monk
Sun Mar 14 2010, 12:32AM Print
William Monk Registered Member #2470 Joined: Tue Nov 17 2009, 05:47AM
Location: Simi Valley, CA
Posts: 43
Well, today i was running my 4 inch coil on 2 france 15kV/6mA in parallel. The bottom transformer shot smoke out the insulator. Both the transformers still work fine independently, but they are no longer in (phase?) with each other. I turned them both on, and tested if they would arc to each other, which they did. Do you guys think there is any hope to fixing it? I would be willing to repot it if that would fix it.
Thanks,
William:-(
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hboy007
Sun Mar 14 2010, 12:47AM
hboy007 Registered Member #1667 Joined: Sat Aug 30 2008, 09:57PM
Location:
Posts: 374
Sounds like the insulation partially broke down. You could build a voltage divider and carefully measure the idle voltages.
My guess would be that one broke down a few kV, creating a nasty mismatch.
Does one of the transfromers seem warmer than the other one after running for a while without load?

ps. no, If I am right, there is little you could do.
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William Monk
Sun Mar 14 2010, 01:07AM
William Monk Registered Member #2470 Joined: Tue Nov 17 2009, 05:47AM
Location: Simi Valley, CA
Posts: 43
i haven't ran them no-load for very much time at all. I will try to measure the idle voltages. I will also contact the place that i bought it, because it will still work for neon. Thanks.
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radiotech
Sun Mar 14 2010, 07:11PM
radiotech Registered Member #2463 Joined: Wed Nov 11 2009, 03:49AM
Location:
Posts: 1546
Are these iron core transformers or invertor types?
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quicksilver
Sun Mar 14 2010, 08:22PM
quicksilver Registered Member #1408 Joined: Fri Mar 21 2008, 03:49PM
Location: Oracle, AZ
Posts: 679
Were they of the same type, model, energy? I agree with hboy007, however, did they function fine for awhile prior?
If so; did anything change in the architecture/design, or external environment of the device as a whole?
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