Vacuum interrupter

Details Vacuum interrupter Vacuum interrupter

H - Electricity

01

H

306/215

H01H 33/66 (2006.01) H01H 33/664 (2006.01)

Patent

CA 1224233

ABSTRACT OF THE DISCLOSURE: A vacuum interrupter enhances current interruption capability for large current at high voltage. The interrupter includes a coil-electrode creating an axial magnetic field parallel to the direction of arc current passing across an interelectrode gap. The coil-electrode includes a radially extending web spaced from a contact- electrode of the interrupter, one end of the web electrically connected to a contact-electrode lead rod, a partially turning segment having one end connected through an electrical connector to the other end of the web, another web and a segment made of a material with electrical conductivity higher than the contact-electrode and attached to the back-surface of the contact-electrode. The other web electrically connects the other end of the segment to a contact-making portion of the contact-electrode, the one and other webs alternating at angular intervals. Current passes through the one and other webs in opposite directions. Current paths are shortened in the contact-electrode. The coil-electrode intensifies the axial magnetic field due to the arrangements of the webs.

441802

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