Distribution-System Line-Loss Reduction through Enhanced Capacitor Location Techniques

Many approaches can be taken when evaluating the replacement of PCB-filled capacitors on overhead distribtion feeders. The Pennsylvania Power and Light Company (PP&L) utilized the opportunity to re-evaluate capacitor application techniques as well as capacitor placement. This paper summarizes a joint PP&L/Westinghouse effort to determine the value of a complete capacitor-engineering evaluation as compared with a strict one-for-one unit replacement. Examination of seven feeders yielded significant reduction in real line losses, formulating the justification for future capacitor application efforts.