Carsten
What was the voltage supply to these thrusters, and did you measure the amps at full thrust, with and without the oil in order to determine the power loss due to the oil?
Best Regards,
Doug J
In a message dated 11/17/2006 6:44:41 AM Central Standard Time, MerlinSub@t-online.de writes:
First set of Peppers thruster was filled with oil and get this problem.
Was later refilled with Terpentin (a kind of petroleum) and thats works - but make later the electric cable hard and damage. Last solution was air compensation - with has at least a better efficency but need some maintance.
regards Carsten
<DJACKSON99@aol.com> schrieb:
> Can anyone support this statement: "Scripps has tried to fill the DC motors
> with oil, but the oil gets between the brushes and the commutator, where the
> insulation properties of the oil causes problems. Although it would be possible
> to use high voltage to break through the oil film, the high voltage is a
> safety hazard for the divers."
> -- www.empiremagnetics.com/articles/deep_sea.htm
>
> I was thinking about 24 or 36 volt oil compensated brushed trolling motors,
> but after reading the above I looked and could not find any examples of oil
> compensated brushed motors under 100 volts.
>
> What are your experiences and thoughts?
>
> Thanks
> --Doug J
> www.submarineboat.com