Study On Line Loss Analysis And Reduction Measures Of County Distribution Network

Power loss rate of power distribution network referred to as line loss rate,is a comprehensive technical and economic indicator for the management of power supply companies.Also it is an important indicator of the planning and design for the power system.With the rational planning of the power grid construction and optimizing the structure of power grid at the same time,the business ideas of State Grid Corporation continue to reform unceasingly,and it is enterprise system and business model continue to innovate.At this stage,the State Grid is gradually promoting the scientific management of modern management,abandoning the extensive management,but to take quantitative,operational,and evaluable scientific management methods.Minimize power loss to make the line loss management level reach the world leading position.This is to improve the competitiveness of State Grid and the core content of enhancing production and management level.Meanwhile this is also a necessary condition for the operation and development.In this paper,the basic concepts of distribution network loss are summarized,and the common methods of theoretical line loss are analyzed.On above basis,combining with the actual operating structure of a county power supply network,the data of the distribution network and the power supply are collected,the theoretical line loss of the distribution network is calculated,then the calculation results are analyzed.Focusing on typical 10 kV and 0.4 kV line loss,the composition and distribution of power loss are found through theoretical calculation,the heavy loss lines and transformers are known,and then solutions and corrective measures are put forward.Finally in view of the weak parts of distribution network,mainly technical and management measures are described in detail to reduce losses.Compare the line loss rate after line transformation with before,the line loss rate has improved significantly.Compare the line loss rate after line transformation with before,the line loss rate has improved significantly.According to the current situation of the operation and management of the company,strengthen the basic work of the line loss management through five aspects,such as organization structure,statistical methods,anti-tampering,metering management,and power management to promote the in-depth development work of line loss.