Switchgear conductors and mounting arrangements therefor
First Claim
1. Switchgear comprising:
- a cabinet;
at least one electrical apparatus mounted in said cabinet;
a set of risers vertically mounted in said cabinet and each comprising a pair of confronting electrically conductive U-channels;
stab members; and
mounting means mounting said stab members to project laterally from at least some of said risers in alignment for engagement with said at least one electrical apparatus to electrically connect said at least one electrical apparatus to said at least some risers.
2 Assignments
0 Petitions
Accused Products
Abstract
Hollow risers in switchgear are preferably formed by a confronting pair of spaced apart U-channels. Stab conductors for connecting switching apparatus in the switchgear to the risers have a pair of flat members straddling and secured to the two U-channels by mounts which include backing plates bearing against the inner surfaces of the confronting legs of two U-channels and bolts extending through the stab conductors and U-channel legs and engaging threaded apertures in the backing plates. To accommodate a range of current ratings, the confronting channels can have first and second leg thicknesses t1 and t2, which can be different but the outer widths of the channels are all the same. The backing plates have a first surface with a third thickness in one section and a fourth thickness in a second section. This first surface bears against the U-channel legs when the legs are of different thicknesses and t1 plus t3 is made equal to t2 plus t4. The second face of each backing plate is planar and bears against the inner surface of the legs of the U-channels when t1 is equal to t2.
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Citations
16 Claims
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1. Switchgear comprising:
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a cabinet; at least one electrical apparatus mounted in said cabinet; a set of risers vertically mounted in said cabinet and each comprising a pair of confronting electrically conductive U-channels; stab members; and mounting means mounting said stab members to project laterally from at least some of said risers in alignment for engagement with said at least one electrical apparatus to electrically connect said at least one electrical apparatus to said at least some risers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A riser assembly for switchgear comprising:
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a pair of electrically conductive, elongated U-channels each comprising a bight and a pair of legs extending from said bight in spaced, substantially parallel relationship; support means supporting said pair of U-channels in confronting parallel relationship with said legs of each U-channel extending toward said legs of the other U-channel; and wherein said support means comprises a stab member joining said pair of U-channels and extending generally laterally of said U-channels. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A riser assembly for switchgear comprising:
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a pair of electrically conductive, elongated U-channels each comprising a bight and a pair of legs extending from said bight in spaced, substantially parallel relationship; support means supporting said pair of U-channels in confronting parallel relationship with said legs of each U-channel extending toward said legs of the other U-channel; and wherein said support means comprises main bus taps joining said pair of U-channels and extending generally laterally of said U-channels.
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Specification