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Registered Member #2478
Joined: Mon Nov 23 2009, 03:24AM
Location: Texas A&M University
Posts: 47
I suggest good old fashioned bovine laxative grade mineral oil. However, if you can find a supplier, a product sold as transformer oil may be cheaper and will have more thorough specifications.
Registered Member #2538
Joined: Sat Dec 12 2009, 06:56AM
Location: San Luis Obispo, CA, USA
Posts: 10
A good collection of info on HV oils by Tesla DIYers is found in the famous Pupman archives: Thomas McGahee's Compilation
Transformer oils are high-quality, with all the impurities and water removed, and some have an oxidation inhibitor additive. In looking into oils myself, I have found industrial high voltage oils difficult to obtain in low quantities. It seems Shell, Chevron, Castrol, etc. only make 55gallon drums, and no longer 5 gallon pails (called about 6 different oil distributors around California for xfmr oil). Some transformer oils series' I have found are:
Registered Member #480
Joined: Thu Jul 06 2006, 07:08PM
Location: North America
Posts: 644
McClusky -
Just google "Shell Oil distributors" in your state. You will get the best pricing if you go directly to a large Shell lubricants distributor.
I'd recommend using the Diala AX instead of any vegetable oil. It's dead dry, free of any contaminants, has very low viscosity, and is well proven for high voltage insulation uses.
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About High Voltage Insulating oils ....
