The Maintenance Strategy for Optimizing Distribution Transformer Life Cycle Cost

Bo Ye (Kunming University of Science and Technology)
Lei Xuan (Yunnan Power Grid Corporation)
Bo Xu (Yunnan Power Grid Corporation)
Gefei Qiu (Kunming University of Science and Technology)
Zhangzhou He (Kunming University of Science and Technology)
Ming Li (Kunming University of Science and Technology)

Indonesian Journal of Electrical Engineering and Computer Science
Vol 11, No 10: October 2013

During the operation, the distribution transformer performance will deteriorate. The maintenance is an essential task in enhancing the safety of distribution transformer. Based on equal deterioration theory, the relationship among distribution transformer failure rate in each period of maintenance was deduced. After analyzing the maintenance costs and the failure costs in detail, the model of optimal life cycle costs for distribution transformer was established. Then the genetic algorithm was used to solve the model for obtaining the optimal maintenance strategy. Finally, the optimization results and the influence factors were analyzed. The results demonstrate the feasibility and validity of the proposed method. DOI: http://dx.doi.org/10.11591/telkomnika.v11i10.3458