Self-regenerating current limter with liquid metal

US6600405B1 · kind B1 · utility

Assignee

• Moeller GmbH · DE

Inventors

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

Key dates

• Filing date: Jan 23, 2002
• Grant date: Jul 29, 2003
• Expiry date: Jan 23, 2022

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01H87/00
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

A self-regenerating current limiter with liquid metal includes solid metal electrodes for connection of the current limiter to an electric circuit to be protected. A plurality of compression chambers that are partially filled with liquid metal are located one behind the other between the electrodes. The compression chambers are formed by compression-proof insulating bodies and insulating partition walls that have communicating channels and that are supported by the insulating bodies. Non-conductive ceramic disks are mounted on the inner surfaces of the electrodes. The disks are located opposite the communicating channels of the adjacent partition walls.