Abstract The invention relates to electrical apparatus of substantial size which includes an outer container and a unit insertable in the container which can be readily withdrawn for the purposes of repair or inspection. The insertable unit consists of an oil cooled lower part and an upper control part. The container has an internal shoulder which is engaged by the upper control part of the unit when the unit is inserted in the container. Struts are provided to serve as a support for the unit when it is withdrawn from the container. The oil cooled lower part includes two vertically extending plates disposed in parallel relation to each other and in spaced relation to the inner walls and floor of the casing. The plates have electrical components mounted on their mutually facing sides and the casing is filled with oil to completely immerse the lower part.
Electrical apparatus comprising an upwardly open casing, an aSsembly insertable into and withdrawable from said casing, said assembly including an oil cooled lower unit and an upper control unit, means for suspendingly supporting said assembly in said casing, said lower unit including two vertically extending plates disposed in parallel relation to each other and in spaced relation to the inner walls and floor of said casing, said plates having electrical components mounted on their mutually facing sides, said casing being filled with oil to completely immerse said lower unit, said upper control unit having frame means suspended therefrom, said plates being hingedly mounted on said frame means for pivotal movement about a vertical axis.
Claim 2
Dependent Claim
114 words
Electrical apparatus comprising an upwardly open casing, an aSsembly insertable into and withdrawable from said casing, said assembly including an oil cooled lower unit and an upper control unit, means for suspendingly supporting said assembly in said casing, said lower unit including two vertically extending plates disposed in parallel relation to each other and in spaced relation to the inner walls and floor of said casing, said plates having electrical components mounted on their mutually facing sides, said casing being filled with oil to completely immerse said lower unit, said upper control unit having frame means suspended therefrom, said plates being hingedly mounted on said frame means for pivotal movement about a vertical axis.
Claim 3
Dependent Claim
63 words
Electrical apparatus according to claim 1 wherein said assembly the upper portion of said casing has shoulder means, a pair of stay members pivotally attached to the lower end of said frame means, said stay member being inwardly nested when said assembly is in its inserted position and engageable with said shoulder means to support when said assembly is in a withdrawn position.