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.

Date of Patent:
Jan. 12, 2016

Filed:

Jun. 22, 2011
Applicants:

Stefano Rolli, Bologna, IT;

Gianpaolo DE Robertis, San Clemente, IT;

Stefano Serra, San Vittore Olona, IT;

Gian Carlo Montanari, Casalecchio Di Reno, IT;

Inventors:

Stefano Rolli, Bologna, IT;

Gianpaolo De Robertis, San Clemente, IT;

Stefano Serra, San Vittore Olona, IT;

Gian Carlo Montanari, Casalecchio Di Reno, IT;

Assignee:

TECHIMP HQ S.R.L., Zola Predosa, IT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 27/26 (2006.01); H02H 1/00 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
G01R 27/2694 (2013.01); H02H 1/00 (2013.01); H02H 3/20 (2013.01);
Abstract

An apparatus for measuring the loss factor of an insulator for medium or high voltages is equipped with a tap adapter forming a point for picking up an electrical signal, and comprises a reference capacitor having a first electrode connected to the tap adapter and a second electrode; a first voltage detection module is connected to the first electrode of the reference capacitor for detecting a signal representative of the voltage applied to the reference capacitor; an active electronic device is connected to earth and to the second electrode of the reference capacitor for keeping the potential of the second electrode at a predetermined reference value; a second voltage detection module is connected to an output of the active electronic device in order to detect a signal representative of the electric current that flows through the reference capacitor.


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