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Anti-cracking low-temperature-resistant oil-immersed transformer shell

An oil-immersed transformer and low-temperature-resistant technology, which is applied to transformer/inductor shells, transformer/inductor components, coatings, etc., can solve problems such as increased transformer energy consumption, increased transformer temperature, and increased resistivity of copper wires. Achieve the effects of reducing the gap, increasing the service life, improving friction resistance and high temperature resistance

Inactive Publication Date: 2017-05-31
SUZHOU CHENHENG WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, the structure of the transformer is iron core + copper wire. When the temperature rises, the resistivity of the copper wire also increases. This leads to an increase in the energy consumption of the transformer, which further increases the temperature of the transformer and enters a vicious circle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] This embodiment provides an anti-cracking and low-temperature resistant oil-immersed transformer casing, which includes a casing and an oil conservator arranged inside the casing. The top of the casing is connected to the oil conservator through a pipeline, and the bottom of the casing is also connected to the oil conservator through another pipeline; The outer wall of the oil conservator has cooling fins;

[0029] The chemical composition and mass percentage of the alloy blank used for the heat sink are: Al: 11.3%, Mg: 17.5%, Fe: 1.25%, Si: 0.7%, Cu: 0.01%, Mn: 1.7%, Zn: 1.4%, Zr: 0.25%, rare earth element 1.10%, impurity content <0.015%, and the balance is Ti; rare earth element contains the following components by weight percentage: Gd: 18%, Pr: 3%, Dy: 9%, Ac: 12.5%, Nd : 20%, Sm: 11%, the balance is La;

[0030] The processing of the alloy material is specifically as follows:

[0031] a. Put the above alloy materials into the melting furnace, increase the tempera...

Embodiment 2

[0040] This embodiment provides an anti-cracking and low-temperature resistant oil-immersed transformer casing, which includes a casing and an oil conservator arranged inside the casing. The top of the casing is connected to the oil conservator through a pipeline, and the bottom of the casing is also connected to the oil conservator through another pipeline; The outer wall of the oil conservator has cooling fins;

[0041] The chemical composition and mass percentage of the alloy blank used for the heat sink are: Al: 14.4%, Mg: 14.6%, Fe: 1.50%, Si: 0.40%, Cu: 0.10% , Mn: 1.5%, Zn: 2.0%, Zr: 0.10%, rare earth element 3.12%, impurity content <0.015%, the balance is Ti; rare earth element contains the following components by weight percentage: Gd: 15%, Pr: 5 %, Dy: 7%, Ac: 12.8%, Nd: 15%, Sm: 13%, and the balance is La;

[0042] The processing of the alloy material is specifically as follows:

[0043] a. Put the above alloy materials into the melting furnace, increase the tempe...

Embodiment 3

[0052] This embodiment provides an anti-cracking and low-temperature resistant oil-immersed transformer casing, which includes a casing and an oil conservator arranged inside the casing. The top of the casing is connected to the oil conservator through a pipeline, and the bottom of the casing is also connected to the oil conservator through another pipeline; The outer wall of the oil conservator has cooling fins;

[0053] The chemical composition and mass percentage of the alloy blank used for the heat sink are: Al: 12.7%, Mg: 16.8%, Fe: 1.27%, Si: 0.58%, Cu: 0.06% , Mn: 1.6%, Zn: 1.8%, Zr: 0.18%, rare earth elements 2.72%, impurity content <0.015%, and the balance is Ti; rare earth elements contain the following components by weight percentage: Gd: 16%, Pr: 4 %, Dy: 8%, Ac: 12.7%, Nd: 18%, Sm: 12%, and the balance is La;

[0054] The processing of the alloy material is specifically as follows:

[0055] a. Put the above alloy materials into the melting furnace, increase the ...

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Abstract

The invention discloses an anti-cracking low-temperature-resistant oil-immersed transformer shell, comprising a shell and an oil conservator arranged in the shell. The top of the shell communicates with the oil conservator through a pipeline, and the bottom of the shell also communicates with the oil conservator through another pipeline; the outer wall of the oil conservator is provided with cooling fins; the chemical composition of the alloy blank used in the cooling fins, by mass, are: 11.3-14.4% Al, 14.6-17.5% of Mg, 1.25-1.50% of Fe, 0.40-0.7% of Si, 0.01-0.10% of Cu, 1.5-1.7% of Mn, 1.4-2.0% of Zn, 0.10-0.25% of Zr, 1.10-3.12% of rare-earth element, less than 0.015% of impurity content, and the balance Ti; and the rare-earth element comprises, by weight, 15-18% of Gd, 3-5% of Pr, 7-9% of Dy, 12.5-12.8% of Ac, 15-20% of Nd, 11-13% of Sm, and the balance La.

Description

technical field [0001] The invention belongs to the technical field of textile equipment, in particular to a crack-resistant and low-temperature oil-immersed transformer housing. Background technique [0002] As a power supply equipment, the transformer has an extremely important position. Generally, the structure of the transformer is iron core + copper wire. When the temperature rises, the resistivity of the copper wire also increases. This leads to an increase in the energy consumption of the transformer, and this part of the energy consumption further increases the temperature of the transformer, entering a vicious circle. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a crack-resistant and low-temperature oil-immersed transformer housing. [0004] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: an anti-crac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C14/00C22C1/02C22C38/32C22C38/30C22C38/26C22C38/22C22C38/20C22C38/06C22C38/02C23C30/00H01F27/02
CPCC22C14/00C22C1/02C22C38/002C22C38/005C22C38/02C22C38/06C22C38/20C22C38/22C22C38/26C22C38/30C22C38/32C23C30/00H01F27/025
Inventor 叶冬明
Owner SUZHOU CHENHENG WEAVING
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