Observation of dynamic behavior of PD-generated SF6 decompositions using carbon nanotube gas sensor

W. Ding, R. Hayashi, J. Suehiro, K. Imasaka, M. Hara

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

The authors had proposed a new detection method for partial discharge (PD) occurring in sulfur hexafluoride (SF6) gas using a carbon nanotube (CNT) gas sensor. In the previous study, we had investigated the dependency of gas sensor response on applied voltage and gas sensor position. In this paper, a series of experiments was performed to observe dynamic behavior of decomposition gas using the CNT gas sensor. The gas sensor responses to PD under several SF6 gas pressures were measured. It was found that the sensor response normalized by PD power increased almost linearly with the gas pressure. The result is useful to understand the mechanism how the gas pressure influences the generation and diffusion of decomposition gas. Effects of absorbent placed inside the discharge chamber were also investigated. Finally, the gas sensor responses were measured with a time interval after PD was extinguished to check if an offline diagnosis was possible. Although the sensor response decreased with elapsed time after PD was extinguished, it was still possible to detect the residual decomposition gas using the CNT gas sensor.

Original languageEnglish
Title of host publication2005 Annual Report Conference on Electrical Insulation and Dielectric Phenomena, CEIDP '05
Pages561-564
Number of pages4
DOIs
Publication statusPublished - 2005
Event2005 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP '05 - Nashville, TN, United States
Duration: Oct 16 2005Oct 19 2005

Publication series

NameAnnual Report - Conference on Electrical Insulation and Dielectric Phenomena, CEIDP
Volume2005
ISSN (Print)0084-9162

Other

Other2005 Conference on Electrical Insulation and Dielectric Phenomena, CEIDP '05
CountryUnited States
CityNashville, TN
Period10/16/0510/19/05

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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