Research and Design of Cable Partial Discharge Online Monitoring Technology Based on GPS Clock Wireless Synchronization

Abstract

A prototype of cable partial discharge online monitoring system was presented in this paper, including partial discharge sensor, partial discharge collector, GPS wireless synchronization system, centralized monitoring host and operation software. Real-time cable partial discharge monitoring data transmitted wirelessly, analyzed by platform software, and output information of time domain waveform, frequency waveform, discharge quantity, PRPD spectra of discharge number-discharge quantity-power frequency phase, locating information of partial discharge, history record and query of partial record and alarm severity of partial discharge.