Re: Oil insulated secondaries (fwd) (Are they worth it?) (fwd)

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Date: Tue, 11 Sep 2007 21:56:07 +0000
From: Jeff Behary <jeff_behary@xxxxxxxxxxx>
To: tesla@xxxxxxxxxx
Subject: Re: Oil insulated secondaries (fwd) (Are they worth it?) (fwd)

Hello,

Oil insulation is interesting for specific applications.  It works well very 
well for flat coils and close-coupled cylindrical coils.  Its particularly 
nice when low voltage high current transformers are used and tight coupling 
of the primary and secondary coils is required.  It was a classic design of 
early X-Ray Coils where several kilowatts of power were crammed into a small 
suitcase coil.  A great way to get flaming discharges without flaming coil 
forms... If you do make an oil-filled coil you may consider adding a bit of 
melted paraffin wax to the hot oil.  The oil will form something like jello 
or vaseline depending on the ratio you use once it "sets" a bit and it helps 
keep down some of the mess...

I don't know if anyone has tried but I always wanted to buy a fish tank for 
this purpose, and throw the condenser and transformer inside too.  On top 
would be only the dischargers and spark gap...

Might get a bit heavy in the end though!

Jeff Behary, c/o
The Turn Of The Century Electrotherapy Museum
http://www.electrotherapymuseum.com

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