Patent ID: 7102861
Filing Date: 2006-09-05
Classification: H01H

Abstract:
1. A current limiting fusible module, for use in a cryogenic fuse, said fusible module being adapted to initiate a current limiting arc, said fusible module comprising: a first cryogenic composite; a second cryogenic composite, adjacent to said first cryogenic composite; and a cryogenic heat dissipater secured to both the first cryogenic composite and the second cryogenic composite, said cryogenic heat dissipater adjacent each other and dissipating heat to thereby increase nominal operating current without significantly increasing peak fault current and let-through energy of said current fusible module wherein at least one of said first and said second cryogenic composites has a non-linear and substantially increasing resistivity with respect to increasing at least one of temperature and current, further wherein one of said first and second cryogenic composites having the highest resistance will depart from its solid state thereby initiating said current limiting arc.