H - Electricity – 01 – H
Patent
H - Electricity
01
H
26/120, 306/143
H01H 85/38 (2006.01) H01H 85/18 (2006.01) H01H 85/42 (2006.01)
Patent
CA 1174715
11DTO4544 Abstract A high voltage fuse having mounted gas evolv- ing members and method of forming such a fuse are disclosed. The high voltage fuse comprises, in part, a plurality of block shaped gas evolving members attached to a plurality of fuse elements, which, in turn, are wound about a supporting core. The high voltage fuse also has an electrically insulating casing in which is mounted the core having the wound fuse elements and the attached blocks of gas evolving members. The fuse casing is filled with a pulverulent arc quenching filler material. The block shaped gas evolving members have a narrow slit which allows the gas evolving members to be easily slipped over the fuse element so as to cover part or all of a transverse portion of the fuse. The gas evolving members are positioned over the fuse element at locations along the core so that the block type gas evolving members are arranged between adjacent portions of the ribs of the core. The block type gas evolving members are further positioned in desired locations by disposing the gas evolving members between the adjacent turns of the fusible elements. Positioning the gas evolving material blocks at their desired locations provides stationary boundaries and limits the movement of the gas evolving material during the filling of the fuse casing by the pulverulent arc quenching filler material.
403549
Koch Robert E.
Leach John G.
Company General Electric
Eckersley Raymond A.
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