[Boatanchors] HV Electrolytics

[rbethman]

On 6/5/2015 9:58 AM, mikea wrote:
> On Wed, Jun 03, 2015 at 06:39:30PM -0400, WA5CAB--- via Boatanchors wrote:
>> Who the **** would run a motor on 50KV?
> Good question. I know that some ships run their propulsion motors on 17KV AC;
> I'm not sure of the frequency, or if it's 1-phase or 3-phase. The Chief Engineer
> of the Carnival Triumph and I spent about 15 minutes discussing the power chain
> between the diesels and the screw(s) on that ship, and I learned a number of
> interesting things. This conversation led me to trawl through the UK marine
> accident investigation agency pages, where there are some interesting reports on
> failures in the electrical segment of some ship propulsion systems.
>
> I also wouldn't be surprised if some steel mills ran very high power motors on
> high voltage AC, but I don't have direct knowledge of that.
>
Very Likely very large power plants.  In particular Nuclear types.

They have insane flow rates for the secondary cooling loops.  It is in 
the range of 10s of thousands gallons per hour.

It is far more economical to run the secondary coolant pumps on very 
high voltage.

Even in significantly smaller Military reactors, the primary coolant 
loop was a pair of 5KV at 4k gallons an hour.

I don't remember what the secondary loop ran.  I do know it was very 
high rates.

Regards, Bob - N0DGN