Determination of electrical making instants using load voltage for coupled loads
US12394578B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 24, 2022 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | May 24, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/566
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.