WAY OT; started motor capacitor sizing formula ?

[James Knott]

David J Patrick wrote:
> Alright, I know it's not linuxy, but I have a pressing technical
> problem that the outside world can't seem to answer; What size starter
> capacitor do I need for a 1hp/230v oil-filled motor ?
>
> The cap on my Blakeslee UC21 dish sanitizer has blown (again) and I'm
> trying to replace it with one that will last more than 6 months. The
> original cap is long gone, the dishwasher manufacturer has no clue,
> and the motor manufacturer says "bring it in". Sadly, motor removal
> and replacement in this scenario is a Big Deal..
>
> Surely there exists some general formula that will get me into the
> proper microfarad range, but none of the electrical geeks at any of
> these suppliers has any idea.
>
> please to help ?

There's really no way to guess.  However, the big question is why is it
failing?  Is it under rated for the application?

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