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US 4,071,882 AGranted
Structure for electrical interface
AssigneeCanadian General Electric Company Limited
InventorRobert Henry Rehder
Life of this patent
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Abstract
In an electrical substation, the use of separate towers or poles to terminate overhead lines is obviated by using bus duct for this purpose. Isolated phase or metal-clad bus duct is erected to provide not only the electrically conductive path between the overhead lines and the associated electrical equipment, but also the mechanical strength necessary in order to eliminate the towers and poles of the prior art.
Claims9
An electrical interface device for interfacing at least one overhead electrical distribution line with electrical equipment, said interface device comprising:
- a. at least one generally-cylindrical vertical metal column adapted to be at ground potential,
- b. means for supporting said column from its lower extremity in a position adjacent to electrical equipment, with the longitudinal axis of said column approximately vertical;
- c. at least one generally vertically-extending conductor located inside said column and insulated therefrom,
- d. means extending into said column adjacent the upper end of the column for electrically connecting an overhead distribution line to said conductor at the upper end of said conductor,
- e. generally-horizontal conductive means projecting laterally from said conductor through said metal column at a location intermediate the ends of said column for electrically connecting said conductor to electrical equipment, and
- f. a generally horizontally-extending tubular metal enclosure located intermediate the ends of said vertical column and surrounding said horizontal conductive means immediately adjacent said vertical column.
3 more elements
Dependencies are inferred from the claim text.