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:
Oct. 03, 2023
Filed:
Mar. 11, 2019
Hitachi Energy Switzerland Ag, Baden, CH;
Gian-Luigi Madonna, Otelfingen, CH;
Xavier Kornmann, Lauchringen, DE;
Daniel Neeser, Thalwil, CH;
Stefano Bertoli, Wettingen, CH;
Ektor Sotiropoulos, Horgen, CH;
Martin Schick-Pauli, Zürich, CH;
Alexander Fach, Boppelsen, CH;
Philipp Sommer, Zürich, CH;
Yannick Maret, Dättwil, CH;
HITACHI ENERGY SWITZERLAND AG, Baden, CH;
Abstract
Disclosed is a leakage current measuring device for a grid protection system protecting a power distribution or transmission grid from damage in case of a power surge, the grid protection system including a disconnector device and a surge arrester connected in series along a grounding path, the grounding path connecting a phase of a power distribution or transmission grid through the surge arrester and the disconnector device to ground, the disconnector device being configured for being activated in case of an overload condition, thereby disconnecting the surge arrester. The leakage current measuring device includes a leakage current sensor for measuring a leakage current Iflowing along the grounding path, the leakage current Ibeing indicative of the electrical connection status of the disconnector device. The electrical connection status is one of an activated and an inactivated status of the disconnector device.