Drying and curing technology for coil and body of transformer

A transformer coil and solidification process technology, applied in coil manufacturing, etc., can solve problems such as product quality impact, coil insulation aging, power consumption and other resources, reduce production costs and resource energy consumption, ensure insulation thermal performance, and reduce power consumption. The effect of electricity

Inactive Publication Date: 2012-01-11
JIANGSU HONGYUAN ELECTRIC
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to this process, there are two disadvantages: 1) the production efficiency is reduced; 2) due to the long time, it needs to consume resources such as electric energy, which increases the production cost and resource energy consumption of the transformer; 3) due to the high temperature, it will cause The aging phenomenon of the internal insulation of the coil affects the product quality

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Drying and curing technology for coil and body of transformer
  • Drying and curing technology for coil and body of transformer
  • Drying and curing technology for coil and body of transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] In the present invention, the transformer coil and the device body are dried and cured in an electric drying room respectively. After the transformer coil is press-fitted, it is dried and cured in an electric drying room with a power of 30-50kW. The drying and curing temperature is 140°C, and the drying and curing time is 3-3.5 hours. After drying and curing, a fan is used for strong cooling; The high-power electric drying room is used for drying and curing. The drying and curing temperature is 130°C, and the drying and curing time is generally 12 to 15 hours. insulation resistance.

[0012] Table 1. Temperature change of coil and body drying process

[0013]

[0014] After closing other electrical equipment, open 2 coil drying ovens and 2 body drying ovens separately to dry according to the original process temperature and the improved process temperature. The specific process parameters and power consumption are shown in Table 2:

[0015] Table 2. Comparison tab...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a drying and curing technology for a coil and a body of a transformer. The technology comprises the following steps of: drying and curing the coil and the body of the transformer respectively by virtue of an electric drying room, wherein the drying and curing temperature of the coil of the transformer is 140 DEG C, the drying and curing time of the coil of the transformer is 3-3.5 hours, the drying and curing temperature of the body is 130 DEG C, and the drying and curing time of the body is generally 12-15 hours; and cooling the coil of the transformer intensively after drying and curing. Compared with an oil-immersed drying and curing technology for the coil and the body of an power distribution transformer, the drying and curing technology disclosed by the invention has the following advantages: 1) the drying time is shortened, and the production efficiency is improved greatly; 2) since the drying time is relatively short, the production cost and the resource energy consumption of the transformer are reduced; and 3) the drying and curing temperature is shortened, thus the heat insulation performance of the insulator is ensured effectively.

Description

technical field [0001] The invention relates to the technical field of transformer production, in particular to a drying and curing process for a coil and a body of an oil-immersed distribution transformer. Background technique [0002] At present, for the drying treatment of the coils of conventional oil-immersed distribution transformers, the temperature is kept at about 160 ° C, and the pre-drying time is generally about 5 to 6 hours; the drying temperature of the body is generally about 140 ° C, and the drying time is generally 15 ~ 18 hours or so. According to this process, there are two disadvantages: 1) the production efficiency is reduced; 2) due to the long time, it needs to consume resources such as electric energy, which increases the production cost and resource energy consumption of the transformer; 3) due to the high temperature, it will cause The aging phenomenon of the internal insulation of the coil affects the product quality. Contents of the invention ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01F41/04
Inventor 沈剑周兵许叶平沈山林
Owner JIANGSU HONGYUAN ELECTRIC
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap