Kontaktschutzschaltung und Hochspannungsrelais damit

Details

Veröffentlichungs-Nr.

EP2407995

Aktenzeichen

EP10290404

Anmeldetag

16. Juli 2010

Veröffentlichung

10. Dezember 2014

Erteilung

10. Dezember 2014

Rechtsraum

EP

IPC

H01H50/54

Abstract

The invention provides a switching device having a contact protection circuit for arcing suppression. The switching device comprises a main relay for interrupting a load path and a dual coil auxiliary having a high resistance coil and a low resistance coil that operate the switching of an auxiliary contact. The auxiliary contact is connected in series with a PTC device and the low resistance coil of the auxiliary relay in a series arrangement. The series arrangement is connected in parallel to the main contact. When the main relay opens, the auxiliary contact is maintained closed during a given time interval due to the magnetic flux generated by the low resistance coil. The given time interval depends on the transition of the PTC device to trip state. In another configuration, the dual coil relay is substituted by two auxiliary relays.

Anmelder

Firmen

Tyco Electronics France SAS
TE Connectivity Germany GmbH
Tyco Electronics AMP GmbH

Land

🇫🇷 Frankreich

Fachgebiete