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Dry type electric transformer teeming epoxy resin coil non-cutting technology

A power transformer, epoxy resin technology, applied in the direction of coil manufacturing, etc., to achieve accurate coil wall thickness, improve social benefits, and reduce labor intensity.

Inactive Publication Date: 2010-05-26
韶关市韶特电气有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the disadvantages of cutting and grinding processing of the cast epoxy resin coil of the existing dry-type power transformer, the invention provides a cutting-free technology for the cast epoxy resin coil of the dry-type power transformer

Method used

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Embodiment Construction

[0014] Epoxy resin insulated dry-type power transformer is a new type of transformer with high reliability, low loss and low noise. It is suitable for urban and rural power grids, high-rise buildings, commercial centers, living quarters, airports, tunnels, chemical plants, nuclear power plants, ships, etc. important or special place.

[0015] The coil is an important part of the dry-type power transformer. The invention provides a cutting-free technology for the cast-type epoxy resin coil of the dry-type power transformer. After the winding is completed, the coil is packaged, and the limit ring is cleaned with acetone to remove the dirt on the limit ring, and then a layer of release agent is applied to the limit ring, and then according to the design requirements Use the support plate and positioning screw to fix the limit ring on the mold core; then package the outer mold. After the packaging is completed, send the wire mold to the drying room for baking. Raise the temperatur...

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Abstract

A cutting free technology for preparing poured epoxy coil of power air - immersed transformer includes winding , packaging , backing, vacuum pouring , curing and forming, The cutting free coil prepared by pouring technology as mentioned above has excellent accuracy on both wall thickness as well as height of coil.

Description

【Technical field】 [0001] The invention relates to a method for manufacturing a dry-type power transformer coil, in particular to a cutting-free technology for a cast-type epoxy resin coil of a dry-type power transformer. 【Background technique】 [0002] Currently, when producing dry-type power transformer coils, epoxy resin coils must be cut to fit the designed height and thickness. In the cutting process, first, the processing labor intensity is high, the production efficiency is low, and the production cost is high. When cutting epoxy resin coils, special cutting equipment and expensive cutting blades are required. One blade costs 450-600 yuan, and one blade only It can cut 5-6 sets of coils, and the cut epoxy resin end rings are treated as waste materials, which increases the production cost. The section of the cut coil needs to be shaped and shaped, and the production efficiency is very low; the second is that it needs to be artificially shaped and shaped Processing, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F41/04
Inventor 罗海涛
Owner 韶关市韶特电气有限公司
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