RESEARCH ON THE ASSESSMENT METHOD OF RESIDENTIAL DISTRICT LINE LOSS RATE BASED ON STATISTICAL REGULATION OF MARKETING DATA

Transformer district line loss rate is a comprehensive technical and economic indicator to assess the management level of a power company. Previous studies on residential district line loss rate assessment were mainly based on theory algorithms, but this paper is based on large amounts of marketing data supplied by Power Company of Jiangsu province. Relationships between normal line loss rate ranges and marketing data of the districts were identified to establish a line loss assessment model. Besides, district line loss rate were divided into excellent, normal and poor three levels by using the statistical methods namely classification, meshing, taking class centers and multivariate regression, etc., and a model based on marketing data like user number and load rate was established to realize the abnormal warning of line loss rate. This method provides a new direction for line loss management.