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A converter transformer coil structure with formed angle ring and its manufacturing method

A technology of a converter transformer and a manufacturing method, applied in the directions of transformer/inductor coil/winding/connection, coil manufacturing, coil, etc., which can solve the problems of heat dissipation efficiency reduction, obstruction of insulating oil flow, oil seepage and oil leakage, and coil insulation Problems such as performance degradation and assembly size can prevent the appearance from bulging, eliminate hidden dangers of oil flow and oil leakage, and have a good application prospect.

Active Publication Date: 2022-05-31
山东输变电设备有限公司 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the baking deformation of the corner ring formed by the oil guide, which affects the decline in the insulation performance of the coil and the problems in the assembly size, resulting in obstruction of the flow of insulating oil and oil leakage and oil leakage, reducing the heat dissipation efficiency

Method used

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  • A converter transformer coil structure with formed angle ring and its manufacturing method
  • A converter transformer coil structure with formed angle ring and its manufacturing method
  • A converter transformer coil structure with formed angle ring and its manufacturing method

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Embodiment Construction

[0021] The following in conjunction with the accompanying drawings, embodiments of the present invention are described in detail.

[0022] as Figure 1 Shown, is a local cross-sectional view of the coil structure of an embodiment of the present invention ( Figure 1 The center left side is the inner diameter side of the coil, and the right side is the outside diameter side of the coil). A converter transformer coil structure with a formed angle ring, comprising: coil body 3, coil body 3 is provided with a coil oil path gasket 12, the lower end of the coil body 3, provided with an electrostatic ring 13. The inner diameter side of the coil body 3 is set sequentially: the first layer of cardboard 4, the first layer of bracing 5, the second layer of cardboard 6, the second layer of bracing 7, cardboard tube 8, forming angle ring 11, the main brace 9. The main brace 9 is arranged closely to the inner diameter of the coil body 3, mainly playing the role of an axial oil channel.

[0023] O...

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Abstract

The invention relates to a converter transformer coil structure with formed angle rings, comprising: a coil body and a main stay, the main stays are arranged close to the inner diameter of the coil body; the formed angle ring is arranged outside the inner diameter side of the coil body, The forming corner ring includes an oil-conducting forming corner ring and auxiliary stays, the auxiliary stays are bonded to the outer surface of the oil-conducting forming corner ring, and the auxiliary stays are parallel to the main stays. The invention also relates to a manufacturing method of a converter transformer coil structure with a shaped angle ring. The present invention adds auxiliary stays to the existing oil-guiding forming angle ring, which can effectively prevent the existing oil-guiding forming angle ring from being deformed, causing many hidden dangers such as swelling of the shape, blocked oil flow, and reduced heat dissipation efficiency, thereby eliminating The hidden danger of hindering oil flow and oil leakage increases the heat dissipation capacity of the oil flow through the winding. It is easy to realize without changing the insulation strength, mechanical properties and overall structure of the coil, and has a good application prospect.

Description

Technical field [0001] The present invention belongs to the technical field of converter transformer components, specifically relates to a converter transformer coil structure with a formed angle ring and a method of making it. Background [0002] Converter transformer is one of the key equipment in the UHVDC transmission system, together with the converter to convert the AC energy in the AC network into DC power, and transmit it to the far side through the UHVDC transmission line, or together with the converter, the DC power in the DC transmission line is inverted into normal AC energy to the UHV AC network. [0003] The special working conditions of the converter transformer determine that its main insulation not only bears the full electric field action of the AC transformer and the electric field action under the test voltage, but also bears the direct current field action in normal operation, the polarity reversal voltage during accident state and reverse operation, and the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F5/06H01F27/32H01F41/12
CPCH01F5/06H01F27/32H01F41/12Y02E60/60
Inventor 张会敏谈翀郭鹏鸿王明胜杨仁毅徐永伟郝娜杨帅李庭庭张京同
Owner 山东输变电设备有限公司
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