power capacitor placement

E

Thread Starter

engineer

for a given circuit, suppose to increase power factor x kvars are needed. and a single bank of x kvars is to be placed.

now where should power capacitor be placed? at the feeder or down the line?
 
Engineer...

Power Factor Correction (PFC) equipment location, in descending order of effectiveness, should be:

1) At the motor-side of its Starter!

2) At the motor-end of its feeder!

3) At the bus supplying a group of motors!

CAVEAT: Each location must be evaluated with regard to disadvantages! Search the Control.Com Archives for specifics.

Engineer, please note that PFC for motors should be limited to about 80% of its no-load kVAr draw! It should never be based on its rated PF at full-load!

Regards,
Phil Corso
 
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