How to use capacitor bank, how to synchronous motor as a correction power factor?

Question

How to use capacitor bank, how to synchronous motor as a correction power factor?

Answer 1

Capacitors for power factor correction will not affect the slip of an AC motor.  Synchronous motors are run as DC machines.  The AC-DC converter must be included in the P.F. correction.

To correct the power factor, place 1 capacitor across each  winding of an AC motor.  3 windings; 3 capacitors each of equal value, calculated to correct the P.F.

For a DC machine, place the capacitors across the phases, from phase-to-phase, before the AC-DC converter.

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