发明授权
- 专利标题： Method and apparatus for diagnosing oil-filled electric apparatus
- 专利标题（中）： 用于诊断充油电器的方法和装置
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申请号： US400157申请日： 1982-07-20
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公开(公告)号： US4502320A公开(公告)日： 1985-03-05
- 发明人: Seiichi Sakai , Toshihiko Gange , Hideo Tsukioka , Katuo Sugawara , Ichitaro Tani , Etsunori Mori , Shigeo Shiono
- 申请人： Seiichi Sakai , Toshihiko Gange , Hideo Tsukioka , Katuo Sugawara , Ichitaro Tani , Etsunori Mori , Shigeo Shiono
- 申请人地址： JPX Tokyo JPX Tokyo
- 专利权人： Hitachi, Ltd.,Shikoku Electric Power Company, Inc.
- 当前专利权人： Hitachi, Ltd.,Shikoku Electric Power Company, Inc.
- 当前专利权人地址： JPX Tokyo JPX Tokyo
- 优先权： JPX56-117927 19810727
- 主分类号： G01N33/28
- IPC分类号： G01N33/28 ; G01R31/00 ; G01R31/12 ; H01F27/00 ; H01G5/013 ; G01N31/00
摘要：
Method and apparatus for diagnosing abnormality of an oil-filled electric apparatus is disclosed. Presence or absence of abnormality is determined by comparing contents of plural predetermined components contained in gas extracted from the oil of the electric apparatus with respective predetermined reference values. The type of abnormality is determined on the basis of at least one set of two specific components selected from the plural components.
公开/授权文献
- US5591529A Optical filter having multi-layer coating 公开/授权日：1997-01-07
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