Transformer insulation lifting parts

A transformer and hoisting technology, which is applied in the direction of load hanging components, inductance/transformer/magnet manufacturing, electrical components, etc., can solve the problems of reduced size of insulating hoisting parts, unreliable combination, unstable electrical performance, etc., and achieve reduction Effect of partial discharge, improvement of electric field distribution, and improvement of electrical performance

Active Publication Date: 2016-03-23
厦门大一互科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0002] In the production process of transformers that need to be hoisted and assembled, the hoisting parts are usually made of phenolic cardboard or high-density board, and the transformer core and winding are suspended and assembled, and the phenolic cardboard or high-density board is used as the insulating medium. The dielectric constant of the insulating medium is inconsistent, and the combination is unreliable. In addition, the geometry of the hoisting parts cannot completely shield the high-voltage electric field, which leads to uneven distribution of electric field intensity, which easily leads to unstable electrical performance, especially when the partial discharge level is difficult. meet national standards
With the development of transformers in the direction of miniaturization and high voltage levels, the size of insulating hoisting parts is also reduced accordingly, and traditional insulating hoisting parts cannot meet the electrical performance requirements, which seriously affects the reliability of products

Method used

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  • Transformer insulation lifting parts

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Embodiment Construction

[0010] The present invention will be further described below in conjunction with accompanying drawing:

[0011] like figure 1 As shown, the insulating hoisting part is formed by connecting a metal connecting plate 1 and an insulating hoisting column 2 . The insulating hoisting column is cast with epoxy resin material, which is the same material as the transformer insulation protection body. The conical end of the metal connection plate is poured into the insulating hoisting column, the conical top is welded with a steel ball 3, and the other end is used for fixed connection on the iron core yoke of the transformer. An annular guide groove 4 is provided on the peripheral wall of the insulating lifting column opposite to the steel ball, and a shield spring 5 is provided as a shielding part for tip shielding in the guide groove.

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Abstract

The present invention relates to an instrument transformer insulating lifting member, which is characterized in that an insulating lifting column and a metal connection plate are connected to form the instrument transformer insulating lifting member, wherein one end of the metal connection plate presents a cone shape and is positioned inside the insulating lifting column, the cone-shaped top end of the metal connection plate is provided with a steel bead, and the insulating lifting column periphery wall corresponding to the steel bead is provided with shielding members for tip shielding. The instrument transformer insulating lifting member has characteristics of simple structure, reliable performance and easy use. According to the present invention, the steel bead is arranged on the cone-shaped end portion of the metal connection plate, and the guide tank and the shielding springs are arranged on the insulating lifting column opposite to the steel bead so as to improve electric field distribution, completely eliminate tip discharge caused by excessive electric field concentration, reduce local discharge, completely meet lifting assembly and high voltage level use requirements of products, and improve electrical properties of voltage instrument transformers.

Description

technical field [0001] The invention relates to a transformer component, in particular to an insulating lifting component for hoisting and assembling a transformer. Background technique [0002] In the production process of transformers that need to be hoisted and assembled, the hoisting parts are usually made of phenolic cardboard or high-density board, and the transformer core and winding are suspended and assembled, and the phenolic cardboard or high-density board is used as the insulating medium. The dielectric constant of the insulating medium is inconsistent, and the combination is unreliable. In addition, the geometry of the hoisting parts cannot completely shield the high-voltage electric field, which leads to uneven distribution of electric field intensity, which easily leads to unstable electrical performance, especially when the partial discharge level is difficult. Meet the requirements of national standards. With the development of transformers in the direction...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/10H01F41/00
Inventor 马晓彬惠兆鹏李中男王继元关少青
Owner 厦门大一互科技有限公司
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