Title :
Digital analysis of multiple faults in GIS
Author :
Meijer, Sander ; Gulski, Edward ; Smit, Johan J. ; Brooks, Roger
Author_Institution :
High Voltage Lab., Delft Univ. of Technol., Netherlands
Abstract :
Digital analysis of PD is a well-known tool to recognize faults in SF6 gas insulated systems. In this paper investigations into UHF PD signals from two simultaneously occurring faults in GIS are reported. The studied cases comprise a particle fixed to an insulator, free moving particles and a combination of both: multiple faults. It is shown that using advanced signal processing, it is possible to distinguish between these situations using digital discrimination tools
Keywords :
SF6 insulation; fault diagnosis; gas insulated substations; insulation testing; partial discharge measurement; signal processing; GIS; PD; SF6; SF6 gas insulated systems; UHF PD signals; digital analysis; digital discrimination tools; free moving particles; insulator; multiple faults; particle; signal processing; Circuit faults; Frequency measurement; Gas insulation; Geographic Information Systems; IEC standards; Partial discharges; Particle measurements; Phase measurement; UHF measurements; Voltage;
Conference_Titel :
Electrical Insulation, 1998. Conference Record of the 1998 IEEE International Symposium on
Conference_Location :
Arlington, VA
Print_ISBN :
0-7803-4927-X
DOI :
10.1109/ELINSL.1998.704650
