@article{oai:nagoya.repo.nii.ac.jp:00010236,
 author = {Yoshida, Soh and Kojima, Hiroki and Hayakawa, Naoki and Endo, Fumihiro and Okubo, Hitoshi},
 journal = {IEEE International Symposium on Electrical Insulation (ISEI 2008)},
 month = {Jun},
 note = {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.},
 pages = {365--368},
 title = {Light Emission Spectrum Depending on Propagation of Partial Discharge in SF6},
 year = {2008}
}