The PD Pattern Characteristics of Typical Defects in GIS Based on Acoustic Detection

Abstract:

Gas insulated switchgear (GIS) is the most important equipment in the power system. The partial discharge (PD) is the main detection method for the insulation failure. Especially, for insulation condition assessment, the pattern recognition technology of partial discharge in GIS is the most important. Acoustic detection of GIS PD is the effective method and it has long application history. The acoustic detection method is very suitable for defects detection in GIS, for it has the advantages of on-line detection and easy realization of locating the defects.The PD pattern characteristic is the key factor for the analysis of defect type. The PD pattern characteristics of four typical defects in GIS based on acoustic detection are studied in this paper. The results provide a test basis for the recognition of PD types and a deeper study of the mechanism of PD.

• Periodical: Applied Mechanics and Materials (Volumes 295-298)
• Pages: 2425-2428
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.295-298.2425
• Online since: February 2013
• Authors: Xu Tao Wu, Bo Ma, Jin Peng Hao, Liang Zhang, Jun Hao Li, Yan Ming Li
• Keywords: Defect Model, GIS, Partial Discharge (PD), PD Pattern

References

[1] Sabot A, Petit A, Taillebois JP. GIS insulation co-ordination: on-site tests and dielectric diagnostic techniques. A utility point of view[J]. Power Delivery, IEEE Transactions on, 1996, 11 (3): 1309-1316.

DOI: 10.1109/61.517485

[2] Lundgaard LE. Partial discharge XIII. Acoustic partial discharge detection-fundamental considerations[J]. IEEE Electrical Insulation Magazine, 1992, 8 (4): 10. 1109/1157. 145095.

DOI: 10.1109/57.145095

[3] Lundgaard LE. Particles in GIS - Characterization from acoustic signatures[J]. Ieee Transactions on Dielectrics and Electrical Insulation, 2001, 8 (6): 1064-1074.

DOI: 10.1109/94.971466