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:
Jun. 24, 2014
Filed:
Mar. 18, 2010
Stefano Serra, San Vittore di Olona, IT;
Andrea Cavallini, San Pietro in Casale, IT;
Gian Carlo Montanari, Zola Predosa, IT;
Gaetano Pasini, Marano sul Panaro, IT;
Stefano Serra, San Vittore di Olona, IT;
Andrea Cavallini, San Pietro in Casale, IT;
Gian Carlo Montanari, Zola Predosa, IT;
Gaetano Pasini, Marano sul Panaro, IT;
Techimp Technologies S.R.L., Bologna, IT;
Abstract
A method for locating partial discharges occurring at a discharge site () in an electric apparatus () with elongate geometry and generating corresponding electric pulses () propagating in opposite directions along the apparatus () from the discharge site () comprises the steps of detecting () the electric pulses () picked up by a first and a second sensor (), operatively connected to the apparatus () and spaced out along it, and generating corresponding electric signals representative of the waveform of the pulses (), selecting () at least one pair of signals, detected in the consecutive sensors (), and representative of a pair of homologous pulses (), relating to the same partial discharge and propagating in opposite directions along the apparatus, deriving, for the signals of the selected pair of homologous pulses (), at least one attenuation parameter, correlated with a quantity that is variable depending on the distance travelled by the pulses (), calculating () the distance between the discharge site () and the sensors, based on processing the values of the attenuation parameter for the signals of the selected pair of homologous pulses ().