Title :
Diagnosis of partial discharge in GIS based on UHF sensing technique
Author :
Jin, L.J. ; Huang, J.Q. ; Liu, W.D. ; Qian, J.L.
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing, China
Abstract :
A gas-insulated substation (GIS) test model was set up and a GIS partial discharge (PD) online detection system by a UHF sensing technique was developed. Investigation was made on the diagnosis of PDs in GIS. Testing with different insulation defects in GIS and comparing between the waveforms of the UHF measurement, the features of the different PDs were investigated, and the PD form recognition was performed. Based on the results of the UHF PD measurement and the conventional PD measurement, the PD quantities of the defects in GIS were estimated
Keywords :
computerised instrumentation; gas insulated substations; insulation testing; PD measurement; UHF sensing technique; gas insulated substation; insulation breakdown testing; insulation defects; partial discharges detection; waveform recognition; Detectors; Frequency; Geographic Information Systems; Insulation testing; Partial discharges; Performance evaluation; Power transformer insulation; Substations; System testing; UHF measurements;
Conference_Titel :
Electrical Insulating Materials, 2001. (ISEIM 2001). Proceedings of 2001 International Symposium on
Conference_Location :
Himeji
Print_ISBN :
4-88686-053-2
DOI :
10.1109/ISEIM.2001.973636
