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:
Jan. 02, 2018
Filed:
May. 15, 2015
Applicant:
Abb Technology Ag, Zurich, CH;
Inventors:
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/38 (2006.01); G01R 19/00 (2006.01); H02J 5/00 (2016.01);
U.S. Cl.
CPC ...
H03H 7/38 (2013.01); G01R 19/00 (2013.01); G01R 19/0023 (2013.01); H02J 5/005 (2013.01);
Abstract
An impedance matching element is disclosed which can be used for voltage and/or current sensing or indicating devices used in medium voltage systems in order to improve signal integrity of output signals in comparison with known sensing devices. To enhance sensing accuracy and provide higher output signal immunity against interferences and impedance mismatches, the electric field sensor and/or the magnetic field sensor can be connected to the impedance matching element which allows connection to an independent analog measuring device and is powered from an energy harvester, with an impedance matching electronic board.