H - Electricity – 01 – H
Patent
H - Electricity
01
H
306/157
H01H 85/08 (2006.01)
Patent
CA 1083647
TAPERED STRAP ELEMENT FOR AN ELECTRICAL FUSE ABSTRACT OF THE DISCLOSURE An electrical fuse is taught having a ribbon-like fuse element therein. The fuse element has a generally uniform width along its length, but the depth of the fuse element is tapered in some regions. Holes or openings of various shapes are disposed along the length of the fuse through the depth thereof. The holes may be circular, triangular, or rectangular in shape and may be through a central portion of the fuse element or may comprise notches at the edges of the fuse element or both. The depth of the fuse element may increase with longitudinal distance from a relatively thin central portion of the fuse element to relatively thick end portion thereof, or vice versa. During low current clearing, the relatively thin portion will melt first and then burns back along the tapered por- tions until the fault current is extinguished. During high current interruption the fuse element will melt first at the notches located on the thin portion of the element and then progressively at the notches along the tapered portion of the element. Multiple arclets are thus formed in series which merge towards each other with time. Each arclet provides a component voltage for a composite arc voltage which limits current.
270866
Mcconnell And Fox
Westinghouse Electric Corporation
LandOfFree
Tapered strap element for an electrical fuse does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Tapered strap element for an electrical fuse, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tapered strap element for an electrical fuse will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-109927