Telescoping disconnect switch with rail-mounted telescope...

Details Telescoping disconnect switch with rail-mounted telescope... Telescoping disconnect switch with rail-mounted telescope...

H - Electricity

01

H

306/332

H01H 1/36 (2006.01) H01H 31/02 (2006.01) H01H 75/02 (2006.01) H02H 3/08 (2006.01)

Patent

CA 1121418

17 48,263 ABSTRACT OF THE DISCLOSURE A telescoping high current disconnect switch for isolated phase bus includes a pair of axially spaced cylin- drical fixed conductors insulatingly mounted within a cylindrical aluminum housing. An aluminum telescope sec- tion is coaxial with the fixed conductors and is insulat- ingly mounted upon a plurality of rollway pillow blocks each containing ball bearings. The pillow blocks are supported by guide rails of austenitic non-ferromagnetic stainless steel which are attached to the interior surface of the housing. The telescope section is axially movable along the guide rails to bridge the fixed conductors, such movement causing the ball bearings to cold-form grooves in the rails, whereby portions of the rails are work-hardened. : :

337854

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