Research On Improving Power Supply Reliability Based On Maintenance Of Distribution Network Status

In recent years,China's economy has continued to take off,and the grid load has also increased.New equipment for distribution networks has been continuously put into operation and its structure has become increasingly complex.At the same time,along with the sustained and rapid growth of the Chinese economy and the continuous improvement of the people's spiritual civilization,the demand for high-quality electricity is also growing.However,due to the uneven construction of power grid construction,the construction of distribution network in some areas is backward,and the operation and maintenance methods are poor.The contradiction between the requirements of power supply customers and the relatively poor power supply capacity of power supply enterprises is increasing.It has affected economic development and people's lives.In the power system,the distribution network plays a role as a bridge between the transmission and transmission systems and the power users.Therefore,reducing the power outage time of users and improving the quality of users' electricity consumption is an important task.Through in-depth analysis of the state maintenance connotation,the relationship between the reliability index and the state maintenance is obtained,and the state maintenance of the county distribution network is promoted,which better reduces the above contradictions.Taking the recent situation of distribution network of power supply company in Changjiang District of Jingdezhen as an example,this paper analyzes the current situation of power supply reliability in Changjiang District,finds weak links and breakthrough points,and implements state maintenance.After the trial maintenance,the trip rate of the 10 kV line of the power supply company in Changjiang District of Jingdezhen City dropped significantly,from 152 times in 15 years to 52 times in 18 years.The reliability of power supply increased from 99.12% to 99.85%.