Application of Partial Discharge Online Monitoring System in Chemical Factory Substations
The rapid development of national economy elevates the demand for electric cables,and nevertheless exagger-ates cable-induced problems such as insulation breakdown and short circuits owing to manufacturing and installation de-fects of cables.The important manifestation of cable insulation degradation is partial discharge (PD)phenomena.By cap-turing high-frequency signals of PD,the degree of cable insulation degradation can be determined in advance.This paper outlines the defect types in cables and the principles of PD monitoring.It focuses on the various aspects of online PD moni-toring system,including system architecture,important component composition,communication network mode,on-site hardware configuration,construction requirements,software interface,and functional characteristics,by reporting a case application in an actual chemical factory and the corresponding applicative results.It may provide useful and guiding infor-mation for chemical industry from the perspective of technological management of substation cable insulation monitoring.
cablepartial dischargehigh frequency current sensoronline monitoring
万方数据
维普
