Tap-off section for a feeder bus duct run
阅读：716发布：2021-12-28
专利汇可以提供Tap-off section for a feeder bus duct run专利检索，专利查询，专利分析的服务。并且The flat bus bars of the tap-off section are outwardly offset in their central portions from their closely spaced relationship in the adjoining portions. Connectors having relatively wide rectangular contact plate portions are electrically connected respectively to the centra1 portions of the bus bars in a singlebolt type joint. Each connector has a relatively narrow offcenter connecting strap portion, the free end portion of which extends perpendicularly to the contact plate portion. The lengths of the perpendicularly extending free end portions of the connecting strap portions vary according to the distances of the contact plate portions from a side of the tap-off section. In a four-pole tap-off section, two connecting strap portions are disposed at the top of the tap-off section and spaced from each other longitudinally of the tap-off section, and two connecting strap portions are disposed at the bottom of the tap-off section and spaced from each other longitudinally of the tap-off section. In a double run of parallel connected feeder bus duct sections, each connector of a tap-off section is electrically connected to a pair of corresponding bus bars connected respectively in the two runs.，下面是Tap-off section for a feeder bus duct run专利的具体信息内容。
1. For use in a run of feeder bus duct, a tap-off section comprising a plurality of elongated generally flat bus bars flatwise aligned and spaced apart from each other by distances less than the thickness of one of the bus bars, central portions of the bus bars being outwardly offset to space the central portions apart from each other by distances greater than the thickness of one of the bus bars, and a plurality of connectors, each connector having a relatively wide contact plate portion electrically connected to the central portion of a respective one of the bus bars by engagement with a flat side thereof and having a relatively narrow off-center connecting strap portion the free end portion of which extends perpendicularly to the contact plate portion, the perpendicularly extending free end portions of the connecting strap portions of all of the connectors extending in the same direction from the contact plate portions, the perpendicularly extending free end portions of the connecting strap portions of two of the connectors being disposed oppositely from each other adjacent opposite edges of the bus bars, and the perpendicularly extending free end portion of the connecting strap portion of a third of the connectors being spaced longitudinally of the bus bars from, and disposed adjacent the same edges of the bus bars as, that of one of the other two connectors.
2. A tap-off section as claimed in claim 1 wherein the lengths of the perpendicularly extending free end portions of the connecting strap portions vary in accordance with the distances between the contact plate portions.
3. A tap-off section as claimed in claim 1 wherein each of the bus bars and each of the contact plate portions is provided with a hole, and including a bolt extending through the holes and a nut cooperable with the bolt to establish contact pressure between each contact plate portion and its respective bus bar, the hole in each contact plate portion being off-center therein in the longitudinal direction of the bus bars, and the hole in the contact plate portion of the third connector being offset in an opposite direction from the direction of offset of the holes in the contact plate portions of the other two connectors.
4. A tap-off section as claimed in claim 1 including a second plurality of the bus bars each spaced from and aligned edgewise with a corresponding bus bar of the first-mentioned plurality, and wherein the contact plate portion of each of the connectors engages a flat side of the central portion of each of two bus bars, one of each plurality.
5. A tap-off section as claimed in claim 4 wherein each of the bus bars of each plurality is provided with a hole and each of the contact plate portions is provided with a pair of holes, and including a pair of bolts, one bolt extending through the holes in the bus bars of the first-mentioned plurality and through one of the holes in each of the contact plate portions and the other bolt extending through the holes in the bus bars of the second plurality and through the other of the holes in each of the contact plate portions, and a pair of nuts cooperable respectively with the bolts to establish contact pressure between the contact plate portions and their respective pairs of bus bars, the holes in each contact plate portion being off-center therein in the longitudinal direction of the bus bars, and the holes in the contact plate portion of the third connector being offset in an opposite direction from the direction of offset of the holes in the contact plate portions of the other two connectors.
6. A tap-off section as claimed in claim 1 wherein there are four bus bars and four connectors, the perpendicularly extending free end portion of the connecting strap portion of a fourth of the connectors being disposed opposite that of the third in spaced relationship longitudinally of the bus bars to that of the other of the two connectors.
7. A tap-off section as claimed in claim 6 wherein the lengths of the perpendicularly extending free end pOrtions of the connecting strap portions vary in accordance with the distances between the contact plate portions.
8. A tap-off section as claimed in claim 6 wherein each of the bus bars and each of the contact plate portions is provided with a hole, and including a bolt extending through the holes and a nut cooperable with the bolt to establish contact pressure between each contact plate portion and its respective bus bar, the hole in each contact plate portion being off-center therein in the longitudinal direction of the bus bars, and the holes in the contact plate portions of the third and fourth connectors being offset in an opposite direction from the direction of offset of the holes in the contact plate portions of the other two connectors.
9. A tap-off section as claimed in claim 6 including a second plurality of the bus bars each spaced from and aligned edgewise with a corresponding bus bar of the first-mentioned plurality, and wherein the contact plate portion of each of the connectors engages a flat side of the central portion of each of two bus bars, one of each plurality.
10. A tap-off section as claimed in claim 9 wherein each of the bus bars of each pluality is provided with a hole and each of the contact plate portions is provided with a pair of holes, and including a pair of bolts, one bolt extending through the holes in the bus bars of the first-mentioned plurality and through one of the holes in each of the contact plate portions and the other bolt extending through the holes in the bus bars of the second plurality and through the other of the holes in each of the contact plate portions, and a pair of nuts cooperable respectively with the bolts to establish contact pressure between the contact plate portions and their respective pairs of bus bars, the holes in each contact plate portion being off-center therein in the longitudinal direction of the bus bars, and the holes in the contact plate portions of the third and fourth connectors being offset in an opposite direction from the direction of offset of the holes in the contact plate portions of the other two connectors.
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