Analysis on Partial Discharge Localization Using UHF Combined with Acoustic Method in GIS

作者：Liu, Junhua^*; Huang, Chengjun; Qian, Yong; Jiang, Xiuchen

来源：International Review of Electrical Engineering, 2010, 5(3): 1266-1270.

• Gas Insulated Switchgear
• Partial Discharge
• Insulation Defect Localization
• UHF Combined with Acoustic

To improve the accuracy of PD localization and enhance the maintenance efficiency of gas insulated switchgear (GIS), a partial discharge (PD) localization method based on Ultra High Frequency (UHF) combined with acoustic technique is proposed in this paper. The PD source is located in a rough range with UHF method firstly, which usually consists of two or three chambers. Secondly, the PD source can be located quickly and accurately by detecting the acoustic and UHF signals simultaneously. As the PD localization method detects UHF and acoustic signals of PD synchronously, it can exclude the interference and confirm PD signal more effectively. The laboratory experiment and on-site application results both show that the PD localization method using UHF combined with acoustic method can be used in online GIS PD localization effectively and precisely.

• 出版日期2010-6
• 单位上海交通大学