This paper briefly introduces some basic concepts of partial discharge and working principle of AE-PD type ultrasonic partial discharge detector. According to the analysis of the typical waveform of capacitor ultrasonic partial discharge

A comparative analysis is made on the internal quality of the capacitor reflected by the ultrasonic partial discharge of the capacitor in the practical measurement. Finally

through the analysis of the partial discharge data of interelectrode and pole-to-case under normal temperature

as well as the analysis of the test phenomenon in interelectrode partial discharge under normal temperature and low temperature

some experiences are summarized.