2024-03-29T01:02:03Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00010236
2023-01-16T03:56:09Z
320:502:503
Light Emission Spectrum Depending on Propagation of Partial Discharge in SF6
Yoshida, Soh
31010
Kojima, Hiroki
31011
Hayakawa, Naoki
31012
Endo, Fumihiro
31013
Okubo, Hitoshi
31014
An understanding of mechanism of partial discharge (PD) in SF_6 gas is critical for diagnosis of PD in electric power equipment. Moreover, analysis of PD mechanism contributes to the optimization of the design of electric power applications. For these reasons, we study in detail about PD mechanism by measuring light emission spectrum of PD in SF_6 gas. In this paper, under an application of lightning impulse voltage in needle-plane electrodes, we have measured light emission spectrum of leader discharge. As the result, we have found out the light emission of long wavelength above 560nm in leader discharge, and the light emission above 560nm is emitted in the streamer head generated at the tip of the leader channel and radiated from dissociation products depending on the step propagation of leader discharge. These results suggest that we can diagnose the PD propagation in SF_6 gas and estimate the risk of breakdown (BD) by measuring PD light emission spectrum in electric power equipment. There are possibilities to contribute to enhance performance of the diagnosis technique in gas insulated power equipment.
journal article
IEEE
2008-06
application/pdf
IEEE International Symposium on Electrical Insulation (ISEI 2008)
365
368
http://dx.doi.org/10.1109/ELINSL.2008.4570350
http://hdl.handle.net/2237/12056
https://nagoya.repo.nii.ac.jp/record/10236/files/2_Light_emission.pdf
eng
https://doi.org/10.1109/ELINSL.2008.4570350
Copyright © 2008 IEEE. Reprinted from IEEE International Symposium on Electrical Insulation, 2008. ISEI 2008. p.365-368. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE<br/> endorsement of any of Nagoya University’s products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org.