The Design And Construction Of The Medium And Low Voltage Distribution Network Lines

In the past,people pay less attention to the middle and low voltage distribution network construction.The investment is not enough.Leading the network structure of the medium and low voltage distribution network is not perfect and the power supply capacity is insufficient.Distribution network structure is weak and the equipment is aging,part of the line is cut.Reasonable planning of medium and low voltage distribution network is not only an important part of power system planning but also an important basis for the construction and transformation of distribution network.The construction of medium and low voltage distribution network will not only consider the short-term user demand,it will have a long-term impact on the overall operation of the regional power grid.Correct,scientific and reasonable middle and low voltage power network planning will not only help to improve the overall power supply capacity of the power grid,but also ensure the reliability of transmission and distribution.It is helpful to improve the quality of power supply in distribution network and reduce energy loss.More importantly,it can help to improve the social and economic benefits.the middle and low voltage distribution network planning is mainly to solve the problem such as current distribution network operation structure is poor,and equipment is aging.By optimizing the distribution network structure and reasonably plan the distribution network construction,the security,reliability and economy of power supply in all areas will be continuously improved.Through studying the current situation of middle and low voltage distribution network,combined with the principle of low voltage distribution network design,this paper analyzed the actual situation of power supply in a certa in area of hebei province and focus on the characteristics of low voltage distribution network line construction,the load forecasting method is used to design the middle and low voltage distribution network and formulate the corresponding implementation measures,completing the area of low voltage distribution network line optimization work in strict accordance with the construction requirements of the operation.After the transformation,the power grid lines has a strong network structure and the principle of introduction is more standard with high feasibility.At the same time,when the new line is put into operation,The current load of this area will be powered by the new line,Shortenning the power supply radius and improve the quality of power supply,reduce the line loss rate,power transmission achieve energy saving with high application value.