Transformer apparatus with -superimposed insulated switch and transformer units
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorAkira Nishikawa
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Abstract
This invention relates to improvements in a transformer apparatus in which a transformer unit insulated with insulating oil and a switch unit insulated with insulating gas are combined. The transformer unit is accommodated in a transformer tank filled with the insulating oil. The switch unit is accommodated in a switch tank filled with the insulating gas. The switch tank is disposed on the top of the transformer unit and made integral therewith such that these tanks are communicated with each other in the interior of the communicated tanks.
Claims11
A transformer apparatus comprising a tranformer tank accommodating a transformer unit and filled with an insulating oil, and a switch tank accommodating a switch unit and filled with an insulating gas, said switch means being disposed on top of said transformer tank and made integral therewith, such that these tanks are in communication with each other along a movable boundary face between the insulating oil within said transformer tank and the insulating gas within said switch tank, thereby permitting expansion of said insulating oil into said switch tank, said switch unit and said transformer unit being connected to each other in the interior of said communicating tanks.
Dependencies are inferred from the claim text.