High electrodynamic resistance and high breaking capacity switching device
The electrical contact switching device with a current loop configuration addresses the challenge of balancing electrodynamic short-circuit withstand and arc management by generating forces that maintain contact closure and facilitate arc dissipation, enhancing both performance aspects.
Patent Information
- Application Number
- FR2024005946
- Authority / Receiving Office
- FR · FR
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-06-06
- Publication Date
- 2025-12-12
AI Technical Summary
Existing pressure-activated electrical contact switching devices face challenges in achieving a balance between high electrodynamic short-circuit withstand and favorable arc management, as they either compromise on one or the other due to conflicting electromagnetic forces during load and overcurrent conditions.
A pressure-activated electrical contact switching device with a current loop configuration that generates compensating electrodynamic forces to maintain contacts in the closed position and facilitates opening under load or overcurrent conditions, while also directing electrical arcs towards external interruption chambers for efficient dissipation.
The device achieves strong electrodynamic short-circuit withstand and effective arc management by generating forces that facilitate contact opening and direct arcs away from the device, ensuring high cutting power and efficient arc interruption.