Patent ID: 6850145
Filing Date: 2005-02-01
Classification: H01H

Abstract:
1. A self-recovering current-limiting device including a liquid metal, the device comprising: a first and a second electrode for connection to an electric circuit to be protected, each of the first and second electrodes being made of a respective solid metal; a plurality of pressure-resistant insulating bodies; a plurality of insulating intermediate walls supported by the insulating bodies, the plurality of insulating intermediate walls and the plurality of pressure-resistant insulating bodies defining a plurality of compression spaces, the plurality of insulating intermediate walls defining a plurality of connecting channels, the plurality of compression spaces being disposed one behind the other between the first and second electrodes and being at least partially filled with the liquid metal; a first connecting conductor connected to the first electrode and disposed below the plurality of compression spaces and having an inverse current direction; and a ferromagnetic body disposed above the plurality of compression spaces.