Full range oil expulsion fuse
AssigneeRTE Corporation
InventorWayne W. Lien
Life of this patent
Estimating the term…
Abstract
An oil expulsion fuse having a pair of contacts solidly secured to the ends of a high strength outer insulating tube. A resilient non-conducting inner sleeve is mounted within the bore of the insulating tube and contact assembly, the sleeve and tube being closely fit to each other. A fusible link is assembled in the bore of the resilient sleeve secured to the contact ends by fuse clamps. The fusible link includes a support tube also composed of a resilient non-conductive material which together with the inner sleeve absorb and trap high energy fuse link particles during a fusing operation.
Claims18
An under oil expulsion fuse, comprising a tubular assembly having an electrically conductive contact on each end, a fuse link supported within the assembly being electrically connected to each of said contacts, and support for said fuse link which includes a resilient material with a bore opening to accept the fuse link, said tubular assembly includes an arc resistant surface layer, a high strength intermediate layer of non-conducting material which secures the end contacts in place and contains the forces developed during fuse clearing, and an inner layer of reilient non-tracking, non-conducting material with the ability to absorb and contain particulate matter impacted upon it.
An under oil expulsion fuse, comprising a tubular assembly having an electrically conductive contact on each end, said tubular assembly including a resilient, non-conductive inner layer and an insulating outer layer of sufficient strength to withstand the forces developed during a fusing operation, and a fuse link supported within the tubular assembly being electrically connected to each of said contacts and a fuse support tube for said link composed of a resilient non-conducting material.
An under oil expulsion fuse, comprising a tubular assembly having an electrically conductive contact on each end, a fuse link supported within the assembly being electrically connected to each of said contacts, and support for said fuse link which includes a resilient material with a bore opening to accept the fuse link, said support and fuse link may be withdrawn from the tubular assembly for replacement, and said support has two conductive end members, to which the fuse link is electrically connected through the bore of the support, which conductive end members provide the electrical connection between the fuse end contacts and the fuse link.
Dependencies are inferred from the claim text.