Research And Application Of On Line Monitoring System For Distribution Cable State In Shijiazhuang Power Grid

Distribution cable line is the lifeblood of a city power system,the reliability of its operation stability is closely related to the efficiency and effectiveness of electric power system,power distribution cable line running effectively and the defects and the accuracy of the segmentation positioning after failure,has been the key and difficult point for all power distribution shipment inspection personnel research.For the safe and reliable operation of power grid is of great significance.This paper introduces the traditional operation and maintenance mode of 10 kV distribution network cable line,and the basic structure and working process of the running state detection device,as well as the results of simulation experiment and practical application.The device realizes the comprehensive collecting operation data cable equipment,complete with data support for the cable distribution line monitoring method and technology application of comprehensive management system,the normal operation of the load measurement,cable cable grounding fault in different time and area,the location,security cable grounding and short-circuit fault once the reliability of power supply requirements,can quickly determine,rapid positioning.To realize the on-line monitoring and fault prediction of all aspects of distribution lines,and further improve the reliability of distribution network operation.