发明名称 |
METHOD FOR DIAGNOSING INTERNAL FAULT OF OIL-IMMERSED TRANSFORMER THROUGH CONTENT RATIOS OF DISSOLVED GASES |
摘要 |
The present invention relates to a method for accurately diagnosing an internal fault of an oil-immersed transformer by analyzing content ratios of dissolved gases generated when the internal fault occurs in the oil-immersed transformer. The method for diagnosing the internal fault of the oil-immersed transformer of the present invention diagnoses the internal fault by analyzing the dissolved gases contained in the insulating oil of the oil-immersed transformer for internal fault diagnosis, wherein the method comprises: a first step of extracting H2, CH4, C2H4, and C2H2 from the dissolved gases; a second step of calculating a content ratio (%) of each dissolved gas from the total content of the four dissolved gases selected from the extracted five dissolved gases; and a third step of determining the internal fault of the oil-immersed transformer for diagnosis corresponding to an internal fault region according to content ratio (%) values of the calculated four dissolved gases and predetermined content ratios (%) of the four dissolved gases. |
申请公布号 |
WO2013100593(A1) |
申请公布日期 |
2013.07.04 |
申请号 |
WO2012KR11506 |
申请日期 |
2012.12.26 |
申请人 |
HYOSUNG CORPORATION |
发明人 |
KIM, YOUNG MIN;KIM, SUNG JIK;SEO, HWANG DONG;LEE, SOO JIN |
分类号 |
G01R31/12;G01R31/02 |
主分类号 |
G01R31/12 |
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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