发明名称 |
INSTRUMENT AND METHOD FOR DETECTING PARTIAL ELECTRICAL DISCHARGES |
摘要 |
<p>An instrument (1) and a method for detecting partial electric discharges involve acquiring a discharge signal (10), for example picked up by a direct- measuring impedance device (7) through a broadband HF acquisition channel (18), and acquiring the discharge signal (10) in a narrowband LF acquisition channel (180) complying with regulations, using on the LF acquisition channel (180) a trigger controlled in slave mode by a trigger of the broadband HF acquisition channel (18); they also involve acquiring another discharge signal (32) picked up by an indirect-measuring impedance device (8) through a second narrowband LF acquisition channel (180A) and comparing digital signals (34, 34A) generated in the first and second LF acquisition channels (180, 180A), in order to generate a balanced digital signal (36) without components representative of common mode electrical signals present in the measuring circuit.</p> |
申请公布号 |
WO2011110984(A1) |
申请公布日期 |
2011.09.15 |
申请号 |
WO2011IB50923 |
申请日期 |
2011.03.04 |
申请人 |
TECHIMP TECHNOLOGIES S.R.L.;SERRA, STEFANO;MONTANARI, GIAN CARLO;BETTIO, FABIANO |
发明人 |
SERRA, STEFANO;MONTANARI, GIAN CARLO;BETTIO, FABIANO |
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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