Design And Study Of New Automatic Ring Main Unit For 10kV Distribution Network

In the 13 th Five-Year Plan of China,it is clearly pointed out that we should build an efficient and intelligent power system,promote the upgrading and transformation of the distribution network,strengthen the construction of the smart grid,solve the weak structure of the distribution network,improve the level of power supply services,and meet the growing demand for electricity.Ring cabinet and automation terminal are important components of the implementation of distribution automation transformation,and their operation level directly affects the application of distribution automation system.Therefore,based on the traditional 10 k V ring cabinet,this paper studies and designs a new type of integrated ring cabinet with automation chips,which provides ideas for the future development of distribution automation.The main contents of this paper are as follows:(1)Briefly introduce the transformation of traditional ring network cabinet automation,and point out the problems existing in the transformation of traditional ring network cabinet automation.(2)A new design and research scheme of 10 k V distribution network automatic ring cabinet is proposed,which focuses on solving the problems existing in the transformation of traditional ring cabinet automation.The plug-and-pull integrated chip module is used as the automation terminal in the new type of 10 k V distribution network automation ring cabinet,which is directly embedded in the secondary room of the ring cabinet.The integrated chip modules can collect and control the ring cabinet directly,so as to realize the high integration of distribution automation devices and the deep integration of primary and secondary equipment.(3)To analyze the safe and stable operation of the new automatic ring cabinet,it is proposed to increase the auxiliary modules of the ring cabinet,such as temperature and humidity sensor module,dehumidifier and wireless temperature measurement system of cable terminal head,so as to enhance the safety protection capability of the new automatic ring cabinet.(4)Comparing the traditional automatic ring cabinet with the new automatic ring cabinet,it shows the advantages of the new automatic ring cabinet in practical application.The new automatic ring cabinet scheme can significantly improve the safety,reliability and stability of the ring cabinet.At the same time,it provides a reference direction for the development of distribution automation terminals,and puts forward higher requirements for the deep integration of primary and secondary equipment in distribution network.