H - Electricity – 01 – H
Patent
H - Electricity
01
H
H01H 31/00 (2006.01) H01H 33/664 (2006.01) H01H 33/66 (2006.01)
Patent
CA 2159917
An axial magnetic field high voltage vacuum interrupter (10) for interrupting the flow of electrical current in high voltage electrical circuits has a housing (12, 14, 16) with a vacuum therein and two switch contacts (30, 60) disposed within the housing (12, 14, 16). The switch contacts (30, 60) are movable with respect to each other between a first position in which they are in contact with each other and a second position in which they are separated from each other by a space sufficient to interrupt the current flow through them. One or both of the switchcontacts (30, 60) comprise a plurality of helically coiled current-carrying bars(100), an electrically conductive stem portion (54) conductively coupled to the helically coiled bars (100) at one end, and an electrically conductive contact member (105) conductively coupled to the helically coiled bars (100) at another end. Each of the helically coiled bars (100) has a first portion which extends radially outward from the stem portion (54) and a second portion which is helically coiled about an axis substantially parallel with the stem portion (54).
Finlayson & Singlehurst
Joslyn Hi-Voltage Corporation
LandOfFree
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