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750kV converter transformer outgoing line cylinder structure and assembling method

A technology for converter transformers and outlet barrels, which is applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor parts, inductor/transformer/magnet manufacturing, etc., which can solve the safety hazards of converter transformers, compression coils to The space of the bushing terminal, the inability to fully guarantee the electrical and mechanical strength of the outlet structure, etc., to achieve the effect of ensuring safe operation, easy disassembly and transportation, and compact structure

Active Publication Date: 2021-01-22
SHANDONG POWER EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The 750kV converter transformer on the grid side has a large capacity and high voltage level. In order to meet the requirements of transportation size, the 750kV converter transformer on the grid side adopts an end outlet structure, which further compresses the space from the coil to the bushing terminal, and cannot fully guarantee the outlet The electrical and mechanical strength of the structure leads to certain safety hazards in the converter transformer

Method used

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  • 750kV converter transformer outgoing line cylinder structure and assembling method
  • 750kV converter transformer outgoing line cylinder structure and assembling method
  • 750kV converter transformer outgoing line cylinder structure and assembling method

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Embodiment Construction

[0027] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] like figure 1 Shown is a cross-sectional view of the structure of the outlet barrel of the embodiment of the present invention. A 750kV converter transformer outlet barrel structure, including: first aluminum tube insulation 1, second aluminum tube insulation 2, cylindrical insulating plug structure (composed of insulating barrel 3, voltage equalizing ring 5), insulating assembly structure 4 .

[0029] like figure 2 Shown is a cross-sectional view of the first aluminum tube insulation of the embodiment of the present invention. The first aluminum tube insulation 1 is an S-shaped aluminum tube welded structure with crepe paper insulation on the outer surface, and the length and shape are suitable for the inner space of the transformer; one end of the first aluminum tube insulation 1 is connected to the coil, and the other end is connected to ...

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Abstract

The invention relates to a 750kV converter transformer outgoing line cylinder structure and an assembly method. The 750kV converter transformer outgoing line cylinder structure comprises a first aluminum pipe insulator, a second aluminum pipe insulator and a cylindrical insulation plug-in structure, wherein the first aluminum pipe insulator is an S-shaped aluminum pipe welding structure with an outer surface provided with crepe paper insulation, one end of the first aluminum pipe insulator is connected with a coil, the other end of the first aluminum pipe insulator is fixedly connected with the cylindrical insulating plug-in structure, the second aluminum pipe insulator is a cylindrical aluminum pipe welding structure with an outer surface provided with a crepe paper insulator, one end ofthe second aluminum pipe insulator is fixedly connected with a voltage-sharing ball, the shape and the size of the outer diameter of the other end of the second aluminum pipe insulator are matched with the shape and the size of the inner diameter of the cylindrical insulating plug-in structure, and the second aluminum pipe insulator is inserted into the cylindrical insulating plug-in structure tobe tightly attached to and in contact connection with the cylindrical insulating plug-in structure. According to the invention, good electrical performance and mechanical performance of the outgoing line structure are ensured, and safe operation of the outgoing line structure is ensured; and the outgoing line cylinder is reliable in structure and convenient to install, the end structure is convenient to disassemble and transport, and it is guaranteed that the size of the outgoing line structure can meet the transportation requirement.

Description

technical field [0001] The invention belongs to the technical field of transformer manufacturing, and in particular relates to a 750kV converter transformer outlet barrel structure and an assembly method. Background technique [0002] The structure of the transformer outlet barrel generally adopts pressure equalizing tubes, pressure equalizing balls, insulating pulp parts, insulating paper, cardboard, stays and other components to form a complex insulation system to protect the internal transformer current-carrying leads to complete the process from the coil outlet to the bushing. The connection and coordination of the terminal in the oil ensures the safe operation of the lead wire under the stress of the electric field. [0003] The 750kV converter transformer on the grid side has a large capacity and high voltage level. In order to meet the requirements of transportation size, the 750kV converter transformer on the grid side adopts an end outlet structure, which further co...

Claims

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Application Information

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IPC IPC(8): H01F27/32H01F41/12
CPCH01F27/324H01F41/125
Inventor 谈翀徐富强马玎郭鹏鸿曲菠杨仁毅王磊徐永伟贾志玲柴东新周斌张阳阳
Owner SHANDONG POWER EQUIP
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