A transformer assembly is disclosed which includes a housing and an electrical transformer having a tank which is positioned inside the housing. A device for electrically connecting the transformer to an electrical article outside the housing includes a shaped body having a first face which is suita
A transformer assembly is disclosed which includes a housing and an electrical transformer having a tank which is positioned inside the housing. A device for electrically connecting the transformer to an electrical article outside the housing includes a shaped body having a first face which is suitable to be connected to one of the walls of the tank, and a second face which is suitable to be connected to one of the walls of the housing. The shaped body can include a deformable portion which is adapted to adjust the positioning of the second face relative to the wall of the housing to which it is suitable to be connected.
대표청구항▼
1. A transformer assembly comprising: an electrical transformer having a transformer tank with plural side walls, a top wall, and a base wall;a housing having a base wall, plural side walls, and a top wall, said transformer tank being positioned inside said housing;a device for electrical connection
1. A transformer assembly comprising: an electrical transformer having a transformer tank with plural side walls, a top wall, and a base wall;a housing having a base wall, plural side walls, and a top wall, said transformer tank being positioned inside said housing;a device for electrical connection of said transformer to an electrical article outside said housing, said device having a shaped body with a first face for connection to one of said top, base or side walls of the transformer tank, and a second face for connection to one of said base, top, or side walls of the housing, wherein said shaped body comprises at least one deformable portion for adjusting a positioning of said second face relative to said one of said base, top, or side walls of the housing;wherein the shaped body of the device comprises: at least two hollow components which are mechanically connected to each other with respective cavities in fluid communication, said cavities defining an internal volume which for filling with a dielectric fluid and inside which an electrical conductor is accommodated; andwherein a first component of said at least two hollow components is adapted to structurally break before a second component of said at least two hollow components. 2. The transformer assembly according to claim 1, wherein said shaped body is positioned entirely inside a space between said housing and said transformer tank, with said first face connected to the top wall of the transformer tank and said second face connected to one of the side walls of the housing. 3. The transformer assembly according to claim 1, wherein a connection between said second face and said base, top, or side walls of the housing is substantially airtight. 4. The transformer assembly according to claim 1, wherein said first component adapted to structurally break before said second component comprises said at least one deformable portion. 5. The transformer assembly according to claim 1, wherein said first component comprises: a hollow cylinder having at least one corrugated portion forming said deformable portion. 6. The transformer assembly according to claim 5, wherein said shaped body comprises: a first flange and a second flange which are connected at two end portions of said corrugated portion of said hollow cylinder; andat least one tie rod having a first end connected to said first flange and a second end connected to said second flange, said tie rod being positioned around and spaced apart from an outer surface of said hollow cylinder. 7. The transformer assembly according to claim 6, wherein said shaped body comprises: a first hollow body and a second hollow body which are connected to said corrugated portion of said hollow cylinder at said first and second flanges with respective cavities in fluid communication. 8. The transformer assembly according to claim 7, wherein at least said first hollow body has a wall thickness which is greater than a thickness of a wall surrounding a cavity of said corrugated portion of the hollow cylinder. 9. The transformer assembly according to claim 7, wherein said shaped body comprises: a hollow element which is connected to said second hollow body and said top wall of the tank, respectively, a cavity of said hollow element being in fluid communication with a cavity of said second hollow body to define the internal volume filled with a dielectric fluid. 10. The transformer assembly according to claim 1, wherein said one of said side walls of the housing to which said second face is connected has a minimum thickness and is positioned at a minimum distance from a corresponding facing side wall of the transformer tank, wherein a ratio between said minimum thickness and said minimum distance is between 0.0001 and 100. 11. The transformer assembly according to claim 10, wherein each side wall of said plural side walls of said housing has a respective minimum thickness and is positioned at a minimum distance from a corresponding facing wall of said transformer tank, wherein each ratio between a thickness of a side wall of said housing and its minimum distance from a corresponding facing wall of the transformer tank is between 0.0001 and 100. 12. The transformer assembly according to claim 1, comprising: plural reinforcing walls, each of said reinforcing walls being positioned between a side wall of the housing and a corresponding facing side wall of the transformer tank. 13. The transformer assembly according to claim 12, wherein two adjacent reinforcing walls are spaced apart from each other by a minimum distance which is shorter than the minimum distance between the side wall of the housing and the corresponding facing side wall of the transformer tank between which said two adjacent reinforcing walls are positioned. 14. The transformer assembly according to claim 12, comprising: plural transverse reinforcing walls, each of which is positioned in a space delimited by a side wall of the housing, a corresponding facing side wall of the tank and two adjacent reinforcing walls positioned there between, a diagonal distance between two corners formed by two adjacent transverse walls and two corresponding adjacent reinforcing walls being shorter than said minimum distance between the side wall of the housing and the corresponding facing side wall of the tank between which said two adjacent transverse walls and said two adjacent reinforcing walls are positioned. 15. The transformer assembly according to claim 1, wherein said housing is substantially airtight. 16. The transformer assembly according to claim 1, wherein said housing is an explosion-proof enclosure.
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이 특허에 인용된 특허 (6)
Magnier, Philippe, Device for prevention against explosion of electrical transformers.
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