2024-03-29T10:19:52Z
https://nagoya.repo.nii.ac.jp/oai
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2023-01-16T03:49:54Z
320:321:322
Impulse partial discharge characteristics and their mechanisms under non-uniform electric field in N/sub 2//SF/sub 6/ gas mixtures
Hayakawa, Naoki
13305
Yoshitake, Yuichiro
13306
Koshino, Naoto
13307
Ueda, Toshiaki
13308
Okubo, Hitoshi
13309
N2rSF6 gas mixtures
lightning impulse voltage
partial discharge
streamer
leader
We have inveatigated impulse partial discharge (PD) and breakdown (BD) characteristics of a needle-plane gap in N_2/SF_6 gas mixtures under positive lightning impulse voltage application, and discussed their physical mechanisms. The 50% probability PD inception voltage (PDIV_50), leader discharge onset voltage (LOV) and BD voltage (BDV_50) were measured and analyzed as a function of gas pressure and SF_6 content. Experimental results revealed the stepwise propagation process pf the impulse PD and enabled us to classify the impulse PD in N_2/SF_6 gas mixtures into two types, the streamer discharge and the leader discharge. We also discussed the impulse PD propagation mechanisms in terms of PD parameters such as propagation length, time interval and current pulse magnitude, and suggested a sequential relationship in the PD propagation process under non-uniform electric field.
journal article
IEEE
2005-10
application/pdf
IEEE Transactions on Dielectrics and Electrical Insulation [see also IEEE Transactions on Electrical Insulation]
5
12
1035
1042
http://hdl.handle.net/2237/6847
https://nagoya.repo.nii.ac.jp/record/5260/files/01522196.pdf
eng
https://doi.org/10.1109/TDEI.2005.1522196
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