Study of molecular behavior in oxidation of insulating oil using terahertz spectroscopy |
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| Authors: | Nobuaki Nishimura Ryuichi Ogura Satoshi Matsumoto Maya Mizuno Kaori Fukunaga |
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| Affiliation: | 1. Shibaura Institute of Technology, Japan;2. National Institute of Information and Communications Technology, Japan |
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| Abstract: | The stock of aged power equipment is increasing and it is important to clarify the characteristics of deteriorated insulating oil. This paper describes a basic study of molecular behavior in the oxidation of insulating oil by terahertz spectroscopy. The oxidation of insulating oil was modeled by using various compositions of dodecane and 2‐octanol. The terahertz measurements indicated that signi?cant absorption related to hydroxyl groups (‐OH) occurred between 6 and 7 THz. The absorption band was also observed in accelerated aging alkylbenzene, which is used in power equipment as insulating oil and is sensitive to hydrogen bonds. © 2013 Wiley Periodicals, Inc. Electr Eng Jpn, 183(1): 9–15, 2013; Published online in Wiley Online Library (wileyonlinelibrary.com). DOI 10.1002/eej.22335 |
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| Keywords: | terahertz absorption characteristics insulating oil oxidation molecular behavior hydrogen bond. |
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