专利名称：MONITORING APPARATUS FOR OIL-IMMERSED ELECTRIC APPARATUS 发明人：OOKUBO HITOSHI 申请号：JP16785783
申请日：19830912
公开号：JPS6058601A
公开日：
19850404
专利内容由知识产权出版社提供
摘要：PURPOSE:To improve detection accuracy in generation of internal failure through the display by locating the failure generating point based on time difference at the concentration changing point of the existing gas detected by a plurality of detector arranged with interval within the oil-immersed electric apparatus and detector installation points. CONSTITUTION:An oil-immersed transformer is composed of a unit transformers 1A, 1B and an oil duct 7 is used for connecting the inside of both transformers 1A and 1B. At least one detector 6A or 6B for detecting gbas dissolved in the oil is respectively provided to the transferomer 1A or 1B. The converters 41A, 41B are provided corresponding to the detectors 6A, 6B and output detected output after converting into anelectrical signal. A comparison and operation unit 42 fetches a converted output to a memory 43 and compares changes of concentration of existing gas sent from the detectors 6A, 6B corresponding to the time and orientates the failure generating point based on the time difference of gas concentration changing point and detector installation position. A display unit 44 displays the located position. A failure generating area can be located with high accuracy without receiving influence of external noise, etc.
申请人：TOSHIBA KK
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