Research on Verification Technology for Data Analysis Function of 110 kV(66 kV)–500 kV Cable Lines Partial Discharge Online Monitoring Systems

Partial discharge (PD) online monitoring of high-voltage (HV) cable systems has been widely applied as an effective means of online monitoring in power systems. The present PD online monitoring systems' data analysis function, however, differ significantly, and their application has not yet achieved the anticipated impact. Additionally, both locally and globally, there is currently no comprehensive way for verifying and evaluating the data analysis function of HV cable PD online monitoring systems. Therefore, this paper proposes a verification technology for the data analysis function of HV cable PD online monitoring systems. The effective verification schemes and comprehensive evaluation rules have been established. And 3 different types of PD monitoring systems have been verified field by the method. The technical support is provided for the selection of HV cable lines PD online monitoring systems, by verifying the data analysis function of the PD online monitoring systems in this paper. It can also better ensure the intrinsic safety of HV cables and channels.