Patent · US Expired

Self-regenerating liquid metal current limiter

US6525642B1 · kind B1 · utility

6Cited by

2References

6Claims

0Family size

Assignee

Moeller GmbH · DE

Inventors

Wolfgang Kremers · Bonn, DE
Andreas Kraetzschmar · Bonn, DE
Frank Berger · Leutenbach, DE

Key dates

Filing date	Jan 29, 2002
Grant date	Feb 25, 2003
Priority date	—
Expiry date	Jan 29, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH01H87/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A self-regenerating liquid metal current limiter including solid metal electrodes for connection to an electric circuit to be protected and several compression chambers which are partially filled with liquid metal. The compression chambers are located one behind the other between the electrodes and are formed by pressure-resistant insulating bodies and by partition walls with connecting channels that are supported by the insulating bodies. The partition walls are provided with a plurality of connecting channels that are not arranged in a generally concent arrangement with respect to a substantially horizontal longitudinal axis of the current limiter, the axis extending in a direction perpendicular to the partition walls. The current limiter provides for various positions of use corresponding to a position of rotation of the current limiter about its longitudinal axis.

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