🚀 go-pugleaf

In article <12525@cbnewse.ATT.COM> sherwood@cbnewse.ATT.COM (charles.a.sherwood) writes:
>Someone stated that they did not know of any equipment that caused a capacitive
>power factor. One of the engineers in our power supply group told me that
>switch mode power supplies have a capacitive factor of about .65 due to the
>low conduction angle. This would imply that any electronic equipment that uses 
>a switch mode power supply would have a has a capacitive power factor. 

Running a synchronous motor 'overexcited' (with high field current) will create
a capacitive load, and it is adjustable.  This is common practice in industry
to balance the power factor.  The motor runs hotter, but if rated current is
not exceeded (they are made to handle it), not only do you get greater
maximum torque, but it can be put to usefull work.

I don't fancy trying to correct the power factor with a bank of switchers :-)

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