发明名称 |
DEVICE AND METHOD FOR DETECTING AND PROCESSING SIGNALS RELATING TO PARTIAL ELECTRICAL DISCHARGES |
摘要 |
<p>A device (1) for detecting and processing signals relating to partial electrical discharges in an electrical apparatus (2) powered by a square-wave (3) voltage modulated by a modulating wave (4) in such a way as to form an alternating voltage of predetermined frequency, comprises: a sensor (5) connectable to the apparatus (2) for detecting a discharge signal (6) representing the electrical pulses generated by the partial discharges; a processing unit (7) connected to the sensor (5) to receive the discharge signal (6) and derive the detection instants of each of the pulses detected with respect to a predetermined time reference, a synchronization module (8) designed to receive an electrical signal (9) representing the power supply voltage and equipped with a filter (10) configured for extracting from said power supply signal (9) a signal (11) representing the modulating wave (4), the processing unit (7) being configured for associating with the pulses detected the values of a phase parameter (f) representing the phase of the modulating wave (4) at the pulse detection instants.</p> |
申请公布号 |
EP2494369(A1) |
申请公布日期 |
2012.09.05 |
申请号 |
EP20100787898 |
申请日期 |
2010.10.29 |
申请人 |
TECHIMP TECHNOLOGIES S.R.L. |
发明人 |
CAVALLINI, ANDREA;FABIANI, DAVIDE;MONTANARI, GIAN, CARLO |
分类号 |
G01R15/14;G01R31/12;G01R31/14 |
主分类号 |
G01R15/14 |
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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