Impulse Creeping Streamer and Propagation Velocity in Vegetable and Mineral Oils with Pressboard Interface  

作　　者：Ryoichi Hanaoka Katsunori Miyagi Yoji Fujita Kiyoshi Takamoto Seiichi Nishikawa Yoshiyuki Oura 

机构地区：[1]Kanazawa Institute of Technology,7-1 Ohgigaoka,Nonoichi,Ishikawa 921-8501,Japan [2]Kanden Engineering Corporation,3-1-176 Fukuzaki,Minato-ku,Osaka 552-0013,Japan

出　　处：《Journal of Energy and Power Engineering》2018年第7期346-355,共10页能源与动力工程（美国大卫英文）

摘　　要：This paper presents an experimental study on the creeping discharge propagating over the pressboard surface in two vegetable oils(PFAE(palm fatty acid ester)oil and CRS(crude rapeseed)oil)and commercial mineral oil under the quasi-square impulse voltage with any pulse width.The pressboard impregnated with the sample oil is immersed completely into the same oil.The tungsten needle electrode is installed in the pressboard surface with and without the counter electrode to generate a creeping discharge.The other side of pressboard has the thin copper rod as a back side electrode.A comparison of the shape and stopping length of positive and negative streamers,discharge current,emitted light signal,and temporal variation and velocity of streamer propagation is reported for all different oil-pressboard interfaces.It has been shown that the behavior of creeping streamers has unique characteristics and polarity effects,and the traveling mode and propagation velocity of streamers are greatly different depending on the type of oil.

关 键 词：CREEPING STREAMER STOPPING length propagation velocity quasi-square IMPULSE voltage PFAE OIL CRS OIL mineral OIL 

分 类 号：TK[动力工程及工程热物理]