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. 19, 2025
Filed:
May. 24, 2022
Hitachi Energy Ltd, Zürich, CH;
Mehulbhai Ghanshyambhai Sonagra, Gujarat, IN;
Urmil Parikh, Ludvika, SE;
Michael Stanek, Gebenstorf, CH;
HITACHI ENERGY LTD, Zürich, CH;
Abstract
A method to detect an electrical making instant for a coupled load is provided. A measured terminal voltage is obtained for each phase of one or more phases of an electrical equipment from a voltage measuring device, during an energization operation of the electrical equipment through a switching device. Further, circuit configuration parameters associated with the electrical equipment is obtained. A processed voltage is determined, for the one or more phases of the electrical equipment based on one or more of the measured terminal voltages of the electrical equipment and a mapping table, which comprises a mapping between the circuit configuration parameters and a computation to be performed on the measured terminal voltage(s). An electrical making instant of a pole of the switching device associated with a phase of the one or more phases is determined based on the processed voltage for monitoring the energization operation of the electrical equipment.