Abstract—This paper presents the capacitor bank location and size to reduce the total power losses and its cost by optimizing location and size of the capacitor bank in the distribution feeder in Lao PDR. The voltage drop and power loss before and after installing the capacitor were compared in this work. The result showed better voltage profiles and power losses of the distribution system could be improved by using the proposed method with 9 and 37-buses in Vientiane province. The proposed method can be a benefit in the distribution feeder analysis for planning and operation in Lao PDR.

Index Terms—Distribution feeder, capacitor, power loss, minimum cost.

The authors are with the Electrical Engineering, Khon Kaen University, Thailand; (e-mail: kham.ley@gmail.com; e-mail: panbua@kku.ac.th; e-mail:arkokm2004@hotmail.com; e-mail: jittipatht@gmail.com)

Cite: K. Tilakul, P. Buasri, A. Kaewrawang and J. Triyangkulsri, "Capacitor Location and Size Determination to Reduce Power Losses of a Distribution Feeder in Lao PDR," International Journal of Computer and Electrical Engineering vol. 4, no. 1, pp. 32-36, 2012.