Combination of a gas-filled interrupter and oil-filled transformer
AssigneeABB Power T&D Company Inc.
InventorsArthur P. Kuss, William J. Book, Daniel H. Hickman
Life of this patent
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Abstract
A gas-insulated switch for a distribution transformer and its associated electrical connections are located within a tank containing insulating and cooling oil for the transformer.
Claims12
In combination:
- a distribution transformer comprising a core and at least one winding;
- a load break switch having a pair of contacts movable between an open and a closed position;
- said pair of contacts connected in series with said winding;
- a sealed gas-filled enclosure for said load break switch;
- an oil-filled enclosure;
- said distribution transformer and said load break switch both being immersed within the oil of said oil-filled enclosure and being connected together within said oil-filled enclosure;
- and an operating mechanism connected to said pair of contacts and being operable from the exterior of said oil-filled enclosure.
In a distribution transformer including a tank and an oil bath located in the tank for insulating and cooling the transformer, the improvement comprising a gas-insulated switch located in the oil bath and electrically connected to the transformer for controlling the on/off state of the transformer, the switch having electrical connector means associated therewith and control means extending through said tank and operable from the exterior of said tank for opening and closing the switch.
Dependencies are inferred from the claim text.