On Thu, 2003-12-04 at 05:08, vrs wrote:
>
> > A caveat - these are not filter caps. They are motor start caps (or they
> > might be "motor run" caps. They will be hard to find an appropriate sub
> > for.
>
> I thought filter caps went for large capacitances, whereas motor start caps
> tended toward high voltages. Are there other differences?
>
The capacitors you're talking about are the "motor run" capacitors for
the motors. There is a difference between them and motor start
capacitors. Motor start capacitors (as the name implies) are used for
starting (large HP) AC motors. They create a phase shift in the current
across the windings so that the motor will actually start. They are
intended to be used only while the motor is starting rotation. I'm less
clear about motor run capacitors, but they are used while the motor is
in operation. In either case they are definitely *not* polarized.
--
TTFN - Guy
Received on Thu Dec 04 2003 - 10:18:07 GMT