Study On Distribution Network Loss Analysis And Loss Reduction Of County Power Supply Enterprises

The line loss rate is an important evaluation index for evaluating the power transmission capacity of the power grid.The line loss rate can not only reflect the level of power grid equipment of the power supply enterprise,but also reflect the management level of the power supply enterprise.Therefore,it is the key to improve the management level and enterprise efficiency of power supply enterprises by strengthening the analysis of line loss rate and finding the cause of high line loss rate,so as to formulate corresponding measures to reduce line loss rate.The line loss rate of middle and low voltage distribution network is the main component of power network line loss,and it is also the key and difficult point in the management of power supply enterprises.The problem of reducing the line loss rate of the medium and low voltage distribution network is deeply analyzed and solved,which is beneficial to the power supply enterprise,thus to improve their economic benefits.This paper firstly makes brief discussion about the line loss calculation principle and the basic methods of power grid.Then,a county power supply company is taken as an example for analysis,combined with the new application of integrated power and line loss management system for its current medium and low voltage.The problems existing in the distribution network management were studied,and then the causes of these problems were analyzed.The corresponding measures to reduce the line losses of the medium and low voltage distribution networks were proposed.The technical measures mainly include optimizing the power grid structure,reducing the energy consumption of the transformer,increasing the cross-sectional area of the conductor,etc.The management measures mainly include strengthening the three-phase load imbalance management and strengthening anti-stealing power management.Combining the corresponding improvement measures to carry out the benefit analysis provides a practical basis for the company to strengthen the line loss management of medium and low voltage distribution networks.