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Re: oil dielectric
Original poster: "Ed Phillips by way of Terry Fritz <twftesla-at-qwest-dot-net>" <evp-at-pacbell-dot-net>
Tesla list wrote:
> Original poster: "Mark Fergerson by way of Terry Fritz
> Tesla list wrote:
> > Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> > Would it be possible to enclose the primary inside a plastic container
> > filled with oil?
> Sure, but why? Tesla (and others) built "demonstration"
> coils with the primary/secondary assembly immersed in oil
> but AFAIK not the primary alone.
> Tesla's stated reason was to minimize corona losses,
> flashover (what we today call racing arcs IIUC) on the
> secondary, and pri/sec arcs, and he preferred oil because
> it's "self-healing". Still makes sense in light of today's
> knowledge, but why just the primary?
> Mark L. Fergerson
There was an article in TCBA News a number of years ago which described
a 1920's vintage GE HV testing lab. If I remember correctly,
one of the devices was indeed an oil-immersed Tesla coil. Should work
fine, but messy messy messy. Once stuff has been in transformer oil it
is never as nice again.