An under-ground vented non-metallic transformer assembly专利检索-配电变压器变压器电机电气元件和设备专利检索查询-专利查询网

An under-ground vented non-metallic transformer assembly

阅读：271发布：2022-05-02

专利汇可以提供An under-ground vented non-metallic transformer assembly专利检索，专利查询，专利分析的服务。并且A distribution transformer assembly for an electrical power distribution system, the transformer assembly including a fluidtight non-metallic enclosure which can be buried in the ground, a distribution transformer having a primary and a secondary winding positioned within said enclosure, said enclosure including sealed primary and secondary electrical terminators or bushings for operatively connecting the transformer to the distribution system and insulating liquid substantially filling said enclosure to dissipate heat losses through the walls of the enclosure to the adjacent ground, at least one of the terminators having a one-way vent to the atmosphere.，下面是An under-ground vented non-metallic transformer assembly专利的具体信息内容。

权利要求

1. An underground distribution transformer assembly for an electrical power distribution system including a low voltage cable, said assembly comprising: a fluid-tight water impermeable non-metallic enclosure capable of being buried directly in the ground, a distribution transformer positioned within said enclosure and having primary and secondary leads, an insulating liquid substantially filling said enclosure, and means extending through said enclosure for connecting said transformer leads to the distribution system, at least one of said connecting means for said secondary leads including means for venting the enclosure through the low voltage cable to the atmosphere.

2. The transformer assembly according to claim 1, wherein said enclosure includes a tank and a cover and means sealing said cover to said tank.

3. The transformer assembly according to claim 1 wherein said enclosure comprises two identical bell-shaped sections.

4. The transformer assembly according to claim 1 wherein said enclosure is made of an electrically insulating plastic which is chemically stable.

5. The transformer assembly according to claim 1 wherein s id enclosure is made of a wet-process porcelain.

6. The transformer according to claim 1 wherein said enclosure comprises two identical bell-shaped sections, each of said sections includes an end wall and a number of passages in the end wall, said primary leads being terminated in the passages in the lower section and the secondary leads being terminated in the passages in the upper section.

7. The transformer according to claim 6 wherein said venting means comprises a one-way valve.

8. The transformer according to claim 1 wherein said venting means includes an electrically conductive member having a central passage and a resilient valve element positioned in said passage to provide one-way air flow through the passage.

9. An underground distribution transformer assembly for an electrical power distribution system including a low voltage cable, said transformer assembly comprising: a fluid-tight non-metallic enclosure formed of electrical porcelain and being capable of being buried directly in the ground, a distribution transformer positioned within said enclosure, an insulating liquid substantially filling said enclosure, and means extending through said porcelain enclosure for connecting said transformer to the distribution system, said connection means including means within said connection means for venting the enclosure through the low voltage cable to atmosphere.

10. The assembly according to claim 9 wherein said enclosure includes two identical sections, each section having connector passages for said connecting means.

11. The assembly according to claim 9 wherein said venting means includes a one-way valve assembly for venting gas under pressure from the enclosure.

12. A non-metallic tank for an underground transformer, said tank comprising a pair of open ended water impermeable non-metallic sections, each section having an end wall and a mounting flange around the outer edge of the open end, means securing said flanges together to form a hermetically sealed enclosure for said transformer, a lead entrance in each of said end walls for terminating said transformer, and a one-way valve mounted in one of said lead entrances for vEnting said enclosure to a cable.

13. The tank according to claim 12 wherein said sections are formed from electrical porcelain.

14. The tank according to claim 12 wherein said one way valve includes an electrically conductive member having a passage, and a resilient valve element mounted in said passage.

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An under-ground vented non-metallic transformer assembly

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