Optimized slot motor for remote secondary contacts in a circuit breaker
US12412720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2022 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Aug 26, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H71/523
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A slot motor for use with secondary contacts in a circuit breaker includes a top slot motor component structured to be attached to a moving arm of the secondary contacts; and a U-shaped bottom slot motor component including a base and a pair of legs extending upward from the base, the U-shaped bottom slot motor component structured to be separated from the top slot motor component by vertical gaps between the top slot motor component and ends of the pair of legs, wherein the slot motor is structured to generate a magnetic field producing a force to maintain the secondary contacts in closed position upon passing high current through the moving arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.