Research on Multi-Dimensional State Evaluation System for Medium-Voltage Distribution Cables
In order to further improve the reliability of power grid power supply,it is of great significance to estab-lish a comprehensive multi-dimensional state evaluation system for widely distributed and numerous distribution cable equipment.This paper first studies the structure and composition of medium-voltage distribution cables,and further confirms the parts that are prone to abnormalities in medium-voltage distribution cables;then,considering the differences in risk tendencies of medium-voltage distribution cables at different stages,the The typical risk sce-narios are sorted out to determine the common risk types of cables,while supplementing the risk scenarios not caused by the quality problems of the cables themselves;finally,based on the typical risk scenarios of medium-voltage distribution cables sorted out,the characteristics that can effectively characterize the cable status are screened and determined A multi-dimensional evaluation system for medium-voltage distribution cables was con-structed,including partial discharge,joint temperature,current carrying capacity,DC component and joint ap-pearance.
medium voltage distribution cablecable structurefault rulescondition assessment
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