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Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
It is possible to get more voltage than the core saturation limit, by series resonating the secondary leakage inductance. I think you need a low impedance on the primary to do this though, at least at the resonant frequency. If you were supplying it through a ballast, the series resonance should have been damped.
Registered Member #152
Joined: Sun Feb 12 2006, 03:36PM
Location: Czech Rep.
Posts: 3384
Steve, I think the leakage indutance of a PT is so small that the resonant circuit would have a negligible "Q"-factor... On the other hand, in high-leakage transformers where the primary and secondary windings are separate on the core, this leakage-resonance trick is not possible because at least a part of the core which is directly under the secondary winding will saturate and limit the voltage anyway.
Registered Member #3700
Joined: Sat Feb 19 2011, 12:59PM
Location:
Posts: 107
I have worked 20+years in a winding workshop.
For motors and tranfomers cclass B winding you may use Taxil, and can free the wiring... you may save and reuse the coppewirer and iron core. Taxil is a kind ot paint off, caustic soda NaOH
BUT for epoxi, noway, use chisel or make a wood fire.... Then you can reuse the iron core.
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Dead PT
