Study On Monitoring Of Intelligent HV Switch Board And Fault Diagnosis Technology

Based on the analysis for high voltage switchbox below 35KV, the dissertation designs an intelligence supervisory equipment of high voltage switchbox which is fit for large-scale mine substation. To begin with, it is introduced about research thoughts and real significance of the high voltage switchbox. Secondly, the general design project of supervisory system is described. Then its realization of each function is presented in detail. In hardware designing of the supervisory system, it mainly presents the realization of telemetering circuit. teleindication circuit. telecommand circuit. bus bar temperature. vacuum degree measuring and computer "five protections". In the software designing, it mainly introduces blocking designing methods and function of subprogram. In addition, it also introduces electric fault diagnosis of high voltage switchbox with the technology of data fusion. In the end, it also studies several anti-interferences measurements and gives the analysis of system error difference.