Patent · US Active

Switchgear unit for switching high DC voltages

US8766760B2 · kind B2 · utility

1Cited by

30References

21Claims

0Family size

Assignee

Ellenberger & Poensgen GmbH

Inventors

Waldemar Weber · Nuremberg, DE
Klaus Werner · Simmerath, DE
Hubert Harrer · Böblingen, DE
Wolfgang Schmidt

Key dates

Filing date	Jun 29, 2012
Grant date	Jul 1, 2014
Priority date	—
Expiry date	Sep 27, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH01H71/122
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A switchgear unit switches high DC voltages, particularly for interrupting of direct current between a direct current source and an electrical device. The switchgear unit contains two connections which project from a housing and which are electrically conductively coupled by a conductor path, a contact system which is arranged between the first and second connections and an isolating apparatus that can be tripped by a thermal fuse. The thermal fuse contains a melting location which is arranged in the conductor path and which is connected first to the contact system and second via a moving conductor section to the first connection. The isolating apparatus is tripped and the connection between the conductor section and the contact system is broken at the melting location when an arc produced when the contact system is opened has caused the melting temperature of the melting location to be reached or exceeded.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.