Rockwell Automation Technologies Incorporated

Rockwell Automation Switzerland Gmbh

Pascal Benz

Hans Weichert

Jeffrey R Annis

Beat Villiger

Sandro Liberto

Beat Villinger

The present disclosure describes an apparatus for increasing the initial closing force and reducing the final closing force in the actuating mechanism of electromechanical switching devices such as relays or contactors.

Clapper armature with curved pole face

A system comprising a magnetic actuator, a current transformer and operational electronics in a dual-coil circuit breaker. The system includes an inline, but non concentric, implementation of the primary and secondary coils to maintain a narrow width suitable for retrofitting in standard industrial rack mounted enclosures. The system further comprises an I-shaped lamination stack that is designed to abut on the ends of an upper and lower plate of the current transformer. The I-shaped lamination stack significantly increases the overlap between the lamination and the upper and lower plates, which results in lower magnetic reluctance and improves magnetic coupling.

Magnetic core coupling in a current transformer with integrated magnetic actuator

Growing community of inventors

Aarau, Switzerland

Pascal Benz