It can detect basic partial discharge parameters such as discharge volume, discharge phase, and discharge times, and can provide statistics of relevant parameters according to customer requirements. Minimum measurement discharge: 20pC; measurement frequency band: 500kHz-20MHz; discharge pulse resolution: 10µs; phase resolution: 0.18°. It can display power frequency periodic discharge graph, two-dimensional (Q-φ, N-φ, N-Q) and three-dimensional (N-Q-φ) discharge spectrogram. It can record measurement phase sequence, discharge volume, discharge phase, measurement time and other related parameters, can provide discharge trend graph and have early warning and alarm functions, and can query, delete, backup and generate reports on the database.