发明名称 |
METHOD OF INSPECTING OIL-FILLED ELECTRICAL APPARATUS |
摘要 |
<p>A method allowing an accurate diagnosis of a failure of an oil-filled electrical apparatus resulting from production of copper sulfide even with a small amount of an insulating oil is implemented. A diagnostic method for an oil-filled electrical apparatus for diagnosing a failure of the oil-filled electrical apparatus having a copper part disposed in an insulating oil is implemented by detecting at least one compound of bibenzyl and dibenzyl sulfide in the oil of the oil-filled electrical apparatus, to diagnose a failure of the oil-filled electrical apparatus in accordance with the detected amount of the compound. It is configured such that a failure of the oil-filled electrical apparatus resulting from production of copper sulfide can be diagnosed by detecting a specified substance, which allows an accurate diagnosis of a failure even with a small amount of the insulating oil.</p> |
申请公布号 |
EP2214184(A4) |
申请公布日期 |
2014.03.12 |
申请号 |
EP20080740479 |
申请日期 |
2008.04.16 |
申请人 |
MITSUBISHI ELECTRIC CORPORATION |
发明人 |
TOYAMA, SATORU;TANIMURA, JUNJI;KAWARAI, HISAKATSU;AMIMOTO, TSUYOSHI |
分类号 |
H01F41/00;G01N30/72;G01N33/28;H01F27/00 |
主分类号 |
H01F41/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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