Improving the energy efficiency of a Power Distribution Network by Loss Reduction: A case study in rural 11 kV Feeder
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I.O.E. Pulchowk Campus
Abstract
Inherent losses occur when electrical energy travels from power generation facilities to end-users. Several utility companies do not recognize the benefits of modernizing their distribution systems or conducting assessments like load flow analysis to identify technical losses and performance indicators like voltage levels at customer service points. Consequently, these companies persist in running their networks without conducting any technical evaluations regarding energy losses or the quality of supply.
The research objective is to improve the energy efficiency of a Power Distribution Network by Loss Reduction in a rural 11 kV Feeder of Nepal. Various reinforcement techniques for efficiency improvement such as: Conductor upgradation, Capacitor placement, Integration with Solar PV are studied. Combined methods of Conductor upgradation with Capacitor placement and Solar PV with Capacitor placement are also considered. Finally, a financial analysis is done.
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Thus, with respect to Savings to Cost Ratio this study finds Capacitor Placement to be the most suitable method for loss reduction among the methods studied and similarly combination of conductor upgradation and capacitor placement is also found to be effective solution for loss reduction and efficiency improvement. Other methods undertaken for study are not found to be as effective due to their high investment cost but low returns in terms of loss reductions