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. 23, 2024
Filed:
Jan. 07, 2020
Hitachi Energy Ltd, Zürich, CH;
Hitachi Energy Ltd, Zürich, CH;
Abstract
There is provided mechanisms for differential protection of a transmission line () of a transmission system (). A method comprises obtaining a restraining current and a differential current from the transmission line (S). The method comprises determining a compensation current for the differential current (S). The method comprises providing the differential current as compensated for by the compensation current and the restraining current to a differential protection arrangement for making a trip decision (S). The method comprises detecting an internal fault for the transmission system (S). The method comprises, as a result thereof, providing the differential current without being compensated for by the compensation current and the restraining current to the differential protection arrangement for making the trip decision (S).