Low energy reclosing pulse test
US11670471B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2022 |
| Grant date | Jun 6, 2023 |
| Priority date | — |
| Expiry date | Apr 4, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H36/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for performing a low energy pulse testing in a power distribution network that causes contacts to close and then open in about one fundamental frequency cycle of current flow time and close on a voltage waveform that produces symmetrical fault current. The method includes energizing a magnetic actuator to move the actuator against the bias of a spring to move a movable contact towards a fixed contact. The method also includes de-energizing the actuator when the movable contact makes contact with the fixed contact so as to allow the spring to move the movable contact away from the fixed contact so that the amount of time that the current conducts is about one fundamental frequency cycle of the current, where energizing the magnetic actuator occurs when an applied voltage on the switch assembly is at a peak of the voltage wave so that the current is symmetric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.