The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 02, 2014
Filed:
Mar. 04, 2011
Stefano Serra, San Vittore Olona, IT;
Gian Carlo Montanari, Casalecchio di Reno, IT;
Fabiano Bettio, Monte San Pietro, IT;
Stefano Serra, San Vittore Olona, IT;
Gian Carlo Montanari, Casalecchio di Reno, IT;
Fabiano Bettio, Monte San Pietro, IT;
Techimp Technologies S.R.L., Bologna, IT;
Abstract
An instrument () and a method for detecting partial electric discharges involve acquiring a discharge signal (), for example picked up by a direct-measuring impedance device () through a broadband HF acquisition channel (), and acquiring the discharge signal () in a narrowband LF acquisition channel () complying with regulations, using on the LF acquisition channel () a trigger controlled in slave mode by a trigger of the broadband HF acquisition channel (); they also involve acquiring another discharge signal () picked up by an indirect-measuring impedance device () through a second narrowband LF acquisition channel (A) and comparing digital signals (A) generated in the first and second LF acquisition channels (A), in order to generate a balanced digital signal () without components representative of common mode electrical signals present in the measuring circuit.