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Cooling device for power network transformer device

A technology of transformer/inductor and cooling device, applied in transformer/inductor cooling, transformer/inductor components, circuits, etc., can solve the problems of transformer performance degradation, low heat dissipation efficiency, power grid waste, etc., to improve service life, Effect of improving cooling efficiency and reducing product cost

Active Publication Date: 2016-07-06
国网浙江天台县供电有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the heat dissipation efficiency of this method is low, resulting in a decrease in the performance of the transformer, resulting in a waste of the power grid, and even causing fires and explosions due to the high temperature of the transformer.

Method used

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  • Cooling device for power network transformer device

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A cooling device for a power grid transformer, comprising a frame body and a three-phase winding, the frame body carries the three-phase winding, the three-phase winding is wound with an aluminum alloy cooling pipe coated with an insulating coating, and each of the three-phase windings The windings are respectively equipped with independent aluminum alloy cooling tubes, and the cooling tubes have insulating cooling medium. Each cooling tube is connected to the liquid pump outside the transformer box.

[0023] The composition of aluminum alloy elements is: Cr3%, Mo1%, Cu0.6%, Mg0.4%, Zn0.2%, Ni0.2%, Co0.1%, V0.07%, Pb0.05%, Sc0.05 %, Ca0.03%, Pr0.01%, the balance is Al,

[0024] The insulating coating is made of 40 parts of magnesium chloride, 30 parts of magnesium oxide, 20 parts of cement, 10 parts of silica fume powder, 10 parts of calcium carbonate, 5 parts of sodium phosphate, 2 parts of methyl cellulose, 2 parts of mica powder, and 30 parts of water. It is made by...

Embodiment 2

[0027] A cooling device for a power grid transformer, comprising a frame body and a three-phase winding, the frame body carries the three-phase winding, the three-phase winding is wound with an aluminum alloy cooling pipe coated with an insulating coating, and each of the three-phase windings The windings are respectively equipped with independent aluminum alloy cooling tubes, and the cooling tubes have insulating cooling medium. Each cooling tube is connected to the liquid pump outside the transformer box.

[0028] The composition of aluminum alloy elements is: Cr4%, Mo2%, Cu0.7%, Mg0.5%, Zn0.3%, Ni0.3%, Co0.2%, V0.08%, Pb0.06%, Sc0.06 %, Ca0.04%, Pr0.02%, the balance is Al,

[0029] The insulating coating is made of 50 parts of magnesium chloride, 40 parts of magnesium oxide, 20 parts of cement, 15 parts of silica fume powder, 10 parts of calcium carbonate, 5 parts of sodium phosphate, 2 parts of methyl cellulose, 2 parts of mica powder and 30 parts of water. It is made by ...

Embodiment 3

[0032] A cooling device for a power grid transformer, comprising a frame body and a three-phase winding, the frame body carries the three-phase winding, the three-phase winding is wound with an aluminum alloy cooling pipe coated with an insulating coating, and each of the three-phase windings The windings are respectively equipped with independent aluminum alloy cooling tubes, and the cooling tubes have insulating cooling medium. Each cooling tube is connected to the liquid pump outside the transformer box.

[0033] The composition of aluminum alloy elements is: Cr3.5%, Mo1.5%, Cu0.65%, Mg0.45%, Zn0.25%, Ni0.25%, Co0.15%, V0.075%, Pb0.055% , Sc0.055%, Ca0.035%, Pr0.015%, the balance is Al,

[0034] The insulating coating is made of 45 parts of magnesium chloride, 35 parts of magnesium oxide, 20 parts of cement, 13 parts of silica fume powder, 10 parts of calcium carbonate, 5 parts of sodium phosphate, 2 parts of methyl cellulose, 2 parts of mica powder, and 30 parts of water. ...

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PUM

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Abstract

The invention provides a cooling device for a power network transformer device. The cooling device comprises a frame body and three-phase windings, wherein the frame body carries the three-phase windings; the outside of each three-phase winding is wound with an aluminum alloy cooling pipe coated with an insulating coating; each winding in the three-phase windings is provided with the independent aluminum alloy cooling pipe separately; an insulation cooling medium is arranged in each cooling pipe; each cooling pipe is separately connected with a liquid pump outside a transformer box; the cooling medium in each cooling pipe has good thermal conductivity, so that the heat conduction is accelerated; each insulating coating has relatively good fireproof performance and insulativity; the product cost can be reduced; and the service lifetime is prolonged.

Description

technical field [0001] The invention relates to a cooling device for a power grid transformer device, and belongs to the technical field of cooling devices. Background technique [0002] The transformer is an important and indispensable power equipment in the transmission grid. It plays an important role in regulating the voltage of the grid. Therefore, the transformer is an important power equipment. At present, most of the transformers running on the grid are oil-immersed. Electric transformers, since oil-immersed distribution transformers mostly use corrugated heat sinks to dissipate heat, the heat generated by the transformer is transferred to the corrugated heat sinks through the heat conduction and convection of the transformer oil, and the corrugated heat sinks then transfer the heat to the surrounding air through thermal radiation . However, the heat dissipation efficiency of this method is low, resulting in a decrease in the performance of the transformer, causing ...

Claims

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Application Information

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IPC IPC(8): H01F27/10C22C21/00C09K5/20H01B3/10H01B3/14H01B3/02
CPCC09K5/20C22C21/00H01B3/025H01B3/10H01B3/14H01F27/105
Inventor 李冲
Owner 国网浙江天台县供电有限公司