发明名称 |
A METHOD FOR DETECTING, IDENTIFYING AND LOCATING PARTIAL DISCHARGES OCCURRING IN A DISCHARGE SITE ALONG AN ELECTRIC APPARATUS |
摘要 |
<p>A method for detecting, identifying and locating partial discharges occurring in a discharge site along an electric apparatus comprises the following steps: detecting (1) electrical signals in a detection station; attributing (2) to each detected signal a value of a phase parameter; deriving (3) for each signal at least one shape parameter and one amplitude parameter; separating (4) the set of signals detected into sub¬ sets that are homogeneous relative to the shape parameter; identifying (5) sub-sets related to partial discharges and cataloguing them; repeating the above steps in a plurality of detection stations positioned along the apparatus; correlating (7) the sub-sets of signals detected in different detection stations and catalogued similarly; selecting (8) as a function of the amplitude and shape parameters of a sub-set among the correlated ones and locating (9) the partial discharges related to said sub-sets at the detection station of the selected sub-set. Known methods have poor effectiveness and/or reliability, especially for cables whose length exceeds 1-2 km or, alternatively, they require an excessively complex and costly field implementation.</p> |
申请公布号 |
WO2009013639(A1) |
申请公布日期 |
2009.01.29 |
申请号 |
WO2008IB50351 |
申请日期 |
2008.01.31 |
申请人 |
TECHIMP TECHNOLOGIES S.A.;MONTANARI, GIAN CARLO;CAVALLINI, ANDREA;PASINI, GAETANO |
发明人 |
MONTANARI, GIAN CARLO;CAVALLINI, ANDREA;PASINI, GAETANO |
分类号 |
G01R31/12 |
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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