Equipment for Partial Discharge Detection
Partial discharge testers are specialized devices used to detect partial discharge phenomena in the insulation of electrical equipment. They are also known as partial discharge testers, partial discharge meters, digital partial discharge meters, and partial discharge detection systems. They are mainly used in power sectors, manufacturers, and research institutes for quantitative partial discharge testing of various high-voltage electrical appliances such as motors, transformers, instrument transformers, cables, bushings, capacitors, high-voltage switches, and surge arresters.
These instruments are characterized by high sensitivity and a wide range of applicable test samples. They often use a large-area oscilloscope to display waveforms and have a high-frequency elliptical scanning function. Some models integrate multiple detection principles, including ultra-high frequency (UHF), ultrasonic (UA), transient ground voltage (TEV), and high-frequency current (HFCT). The instruments feature multi-channel synchronous acquisition, digital filtering, and interference suppression functions, enabling measurements in environments with strong interference and automatically generating analysis results such as discharge phase diagrams (PRPD).
