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:
Aug. 04, 2020
Filed:
May. 30, 2018
Abb Schweiz Ag, Baden, CH;
Madanambeti Manikandan, Hyderabad, IN;
Mayukha Pal, Hyderabad, IN;
Giriprasad Venkateswaran, Hyderabad, IN;
Vishwas Gurung, Hyderabad, IN;
ABB Schweiz AG, Baden, CH;
Abstract
A combination current sensor is disclosed. The combination current sensor includes a self-powering current transformer (CT), comprising a CT core having a CT coil wound therearaound. The CT coil comprises a predetermined number of individual turns of a conductive wire wound progressively along a length of the CT core to define a winding density, wherein the winding density of the CT coil varies along the length of the CT coil core. The combination current sensor also includes a Rogowski current sensing transformer, which includes a Rogowski core and a Rogowski coil wound therearound.