Tell us about your circuit. Your results may not be as anticipated.
Is this a brew your own Nola scheme?
Capacitors are used with motors to improve the power factor and avoid PF penalties.
In small systems and most residential applications you are not penalized for a poor power factor.
Let's look at a motor with 5 Amps of magnetizing current. That is the current that may be reduced by a capacitor.
The circuit conductors for this motor are probably sized for a maximum of 5% drop from the meter to the motor This would be an ampacity of about 20 amps.
So, at no load, the voltage drop that may be avoided by the use of a capacitor may be about 5% of 5/20 = about 1.25%
This is a simplification, but the point is that there is not much saving to be had on small circuits.
Most of the calculations showing Nola savings are misleading.
There are interesting applications of capacitors to compensate for losses on long transmission lines. One application that comes to mind was the connection of capacitors in series with a 500,000 Volt transmission line running around 1000 Amperes.
Another application was to raise the voltage for an entire city at the end of an overloaded transmission line.
For 1/2 Amp at 127 Volts, generally not worth the effort.
But, share your circuit.
You may have a unique application where it will be worth while to use a capacitor.
Bill
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"Why not the best?"
Jimmy Carter