| Power grid power loss rate (referred to as the line loss rate) is an important comprehensive technical and economic indicator for the power enterprises, which reflects the planning and design, production technology and operational management level of a power network. In the power network line loss composition,10kV distribution line loss occupies the main part of the total line loss. How to reduce energy loss in the distribution network to improve the economic efficiency of enterprises is a common problem urgent need to solve for county-level power supply enterprises.To further reduce and control the line loss rate, improvement of line loss management must require a more accurate calculation of distribution network theoretical line loss and the distribution in the network to provide reference for the safe and economic operation of the distribution network.This article based on the analysis of the distribution network theoretical line loss calculation principle and the basic methods, by investigating the Dongping County Electric power company distribution network present situation and the existence question, developed the Dongping County Electric power company distribution network theoretical line loss calculation, and analyzed distribution network line loss theoretical calculation result to discover the problem and the weak link. According to the grid structure and the technical condition of power supply equipment and other issues analyzed from line loss theoretical calculation, from the actual situation, in optimizing the network structure, replacement of high energy transformers, replacement of thick wire cross section, increasing the reactive power compensation capacity, strengthening the low-voltage lines three-phase load balancement management and improving distribution transformer load rate and other aspects to conduct loss reduction analysis, develop a loss reduction plan, and conduct an economic benefits analysis. |
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