Workshop dry-type transformer cooling device

A dry-type transformer and cooling device technology, applied in the field of transformers, can solve the problems of slow heat dissipation of coils, and achieve the effects of energy saving, rapid heat dissipation, and accelerated heat dissipation

Active Publication Date: 2019-02-15
宁波隆锐机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a workshop dry-type transformer cooling device to solve the problem of slow heat dissipation of coils in the prior art

Method used

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  • Workshop dry-type transformer cooling device
  • Workshop dry-type transformer cooling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A workshop dry-type transformer cooling device, including a rectangular base 4, a housing and several coil groups inside the housing; in this embodiment, the number of coil groups is 2, arranged in the horizontal direction.

[0052] The coil group includes a coil 1 and a central pipe 2; the coil 1 is made of flat copper wire; the coil 1 is coaxially arranged in multiple sections and wound around the central pipe 2; two adjacent sections of the fired coil 1 are separated by a mesh pad; the central The pipe 2 is closely attached to the coil 1; the coil 1, the grid pad and the central pipe 2 are poured into one body by epoxy resin.

[0053] Such as figure 1 As shown, the central pipe 2 is hollow, and the upper end and the top and lower ends are open; the upper end and the lower end of the central pipe 2 extend out of the transformer shell, and the upper end of the central pipe 2 is welded with a conical waterproof cover 12, between the central pipes 2 of the adjacent coil ...

Embodiment 2

[0074] The difference from Embodiment 1 is that a collection bucket is provided below the lower end of the central pipeline, and the bottom of the collection bucket is connected to the auxiliary oil tank through a conduit.

[0075] After the collection bucket is set, it is convenient to recover the oil leaked from the bottom of the central pipeline to avoid oil waste.

Embodiment 3

[0077] The difference with Embodiment 2 is that a second pressure sensor is also provided at the bottom of the fuel tank 8, and the second pressure sensor is connected to the signal of the single-chip microcomputer; when the single-chip microcomputer judges that the weight signal of the first pressure sensor exceeds the first threshold and the weight signal of the second pressure sensor When it is lower than the second threshold, the single-chip microcomputer starts the oil pump 10 through the driver.

[0078] When the weight signal of the second pressure sensor is lower than the second threshold, it shows that the oil tank 8 has less oil, and now the oil pump 10 is started to withdraw the oil, which can replenish the oil in the oil tank 8 to prevent too little oil.

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Abstract

The invention relates to the field of transformers, in particular to a workshop dry-type transformer cooling device. The device comprises a shell and a plurality of coil groups arranged in the shell;the coil groups comprise coils and central pipelines, and the coils are coaxially arranged and wound on the circumferences of the central pipelines in multiple sections; every two adjacent fired coilsare separated by a grid gasket; the coils, the grid gaskets and the central pipelines are cast into a whole through epoxy resin; the tops and bottoms of the central pipelines extend out of the shell.By the adoption of the technical scheme, the problem of slow coil heat dissipation in the prior art can be solved.

Description

technical field [0001] The invention relates to the field of transformers, in particular to a workshop dry-type transformer cooling device. Background technique [0002] Transformers include dry-type transformers and oil-immersed transformers; compared with oil-immersed transformers, dry-type transformers are superior to oil-immersed transformers in terms of environmental protection, fire resistance, and impact resistance. Currently, dry-type transformers are used in buildings and crowded places. Transformers, so dry-type transformers are widely used in indoor and crowded places such as workshops. [0003] Simply put, a dry-type transformer refers to a transformer in which the iron core and winding are not immersed in insulating oil. Cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). Due to the large number of production equipment in the workshop and the large power consumption, the dry-type transformer will work at full load for a long ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/28H01F27/08H01F27/14
CPCH01F27/085H01F27/14H01F27/2871H01F27/2876
Inventor 肖锐
Owner 宁波隆锐机械制造有限公司
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