DocumentCode :
3315238
Title :
Calculated particle trajectories in GIS of different designs and the verification by optical and acoustic measurements
Author :
Knapp, M. ; Feser, K. ; Rees, V.
Author_Institution :
Inst. of Power Transmission & High Voltage Technol., Stuttgart Univ., Germany
fYear :
1999
fDate :
1999
Firstpage :
375
Abstract :
In this paper single- and three-phase SF6 gas-insulated switchgear (GIS) are compared with respect to the effects and the criticality of moving particles. To summarize the sensitivity of different GIS designs to moving particles, an evaluation of many calculated trajectories is presented. Some of the calculated results are verified by optically recorded trajectories of a particle moving in the laboratory GIS setup. As an evident result, which is also supported by acoustic measurements, the particle movement is minor in three-phase enclosures. Characteristic flight patterns demonstrate if the particle, depending on its size, contacts the high-voltage electrode or not. In the first case, a breakdown of the isolating distance gets predictable. The experimental setup, the test-vessel, and the modular components are described. The comparison is limited to rated voltages up to U=170 kV (AC, 50 Hz)
Keywords :
SF6 insulation; gas insulated switchgear; 170 kV; GIS; SF6; SF6 gas-insulated switchgear; acoustic measurements; characteristic flight patterns; high-voltage electrode; isolating distance; modular components; moving particles; optical measurements; optically recorded trajectories; particle trajectories; test-vessel; three-phase enclosures; Acoustic measurements; Acoustic testing; Electric breakdown; Electrodes; Gas insulation; Geographic Information Systems; Laboratories; Optical recording; Optical sensors; Switchgear;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1999 Annual Report Conference on
Conference_Location :
Austin, TX
Print_ISBN :
0-7803-5414-1
Type :
conf
DOI :
10.1109/CEIDP.1999.804666
Filename :
804666
Link To Document :
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