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Manufacturing method of oil-immersed transformer

A technology of oil-immersed transformer and manufacturing method, which is applied in inductance/transformer/magnet manufacturing, coil manufacturing, packaging/impregnation, etc., can solve the problems of inability to mass production and slow production speed.

Inactive Publication Date: 2019-07-26
聊城鑫大变压器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The manufacturing method of oil-immersed transformers in the prior art relies only on manual experience, which cannot be mass-produced, and the manufacturing speed is slow. Therefore, it is necessary to design a manufacturing method for oil-immersed transformers

Method used

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  • Manufacturing method of oil-immersed transformer
  • Manufacturing method of oil-immersed transformer
  • Manufacturing method of oil-immersed transformer

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Embodiment Construction

[0044] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0045] like Figure 1-Figure 6 As shown, the manufacturing method of the oil-immersed transformer includes the following steps:

[0046] a. Manufacture of the iron core: Slitting and cross-shearing the coil material, and stacking the obtained silicon steel sheets to obtain the iron core;

[0047] b. Making coils: Winding the wires through winding equipment to make coils;

[0048] c. Assembling: Assemble the iron core and the coil into one body to make a semi-finished product;

[0049] d. Impregnation: the semi-finished product is impregnated by the impregnation device;

[0050] e. Packing: put the semi-finished product into the fuel tank and fix it;

[0051] f, oil filling: carry out vacuum oil filling process to the oil...

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Abstract

The invention provides a manufacturing method of an oil-immersed transformer. The manufacturing method comprises the following steps of a, preparing an iron core: carrying out longitudinal shearing and transverse shearing treatment on a coiled material, and carrying out stacking treatment on an obtained silicon steel sheet to prepare the iron core; b, manufacturing a coil: winding a wire through awinding device to obtain a coil; c, assembling: enabling the iron core and the coil to be assembled into a whole to prepare a semi-finished product; d, paint dipping: enabling the semi-finished product to be subjected to paint dipping treatment through a paint dipping device; e, encasement: putting the semi-finished product into an oil tank and fixing; f, filling oil: carrying out vacuum oil injection treatment on the oil tank, wherein the vacuum degree in the vacuum oil injection tank is controlled to be 800-900 Pa during oil injection, and the oil temperature is controlled to be 50-60 DEG Cto obtain a finished product; g, sealing detection: putting the finished product into a drying oven to be detected, and controlling the temperature of the drying oven to be 65-75 DEG C and controlling the heat preservation time to be 4-6h, and observing whether oil leakage occurs or not. The preparation method disclosed by the invention has the advantages of rapid preparation and the like.

Description

technical field [0001] The invention relates to a manufacturing method, in particular to a manufacturing method of an oil-immersed transformer. Background technique [0002] A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. The main components are coils and iron cores. The oil-immersed transformer puts the iron core winding into insulating oil, uses oil as the main insulation method of the transformer, and relies on oil as the cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling and forced oil circulation, etc. The main components of the transformer are iron core, winding, oil tank, oil conservator, respirator, explosion-proof pipe (pressure relief valve), radiator, insulating bushing, tap changer, gas relay, thermometer and oil purifier, etc. [0003] The manufacturing method of the oil-immersed transformer in the prior art is only based on manual experience, which can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/00H01F41/02H01F41/06H01F41/096
CPCH01F41/00H01F41/005H01F41/0233H01F41/06H01F41/096
Inventor 刘卫虎郝爱亭许宗虎
Owner 聊城鑫大变压器有限公司
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