Research on Verification Technology of Partial Discharge Ultra High Frequency Detection System of Combined Electric Appliance

Scientific and effective verification GIS UHF partial discharge detection system, to ensure the safe and reliable operation of GIS equipment has a vital role. The verification method and sweep frequency calibration method of GIS partial discharge UHF verification system simulator are studied in detail. The verification method of GIS partial discharge UHF verification system based on GTEM chamber is proposed, and the calculation method of the three item performance indexes of the average effective height, the system sensitivity and the dynamic range of the UHF sensor is studied. The verification system is developed according to the verification method. An experimental study on UHF partial discharge detector with TWPD-2623 type was carried out through verification system. The accuracy of the verification method and the effectiveness of the verification system are verified through research. This paper has important guiding significance to GIS UHF partial discharge verification system network testing.