Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A protective seat on the tap terminal of a dry-type transformer

A technology of dry-type transformers and protective seats, which is applied in the field of transformers, can solve the problems of increasing manufacturing costs, increasing creepage distances, and distance failures, and achieves the effects of improving utilization, saving costs, and simple structure

Active Publication Date: 2019-11-08
江苏一开电力科技有限公司
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the distance between the high-voltage terminal and the high-voltage tap terminal along the surface of the object in the small-capacity high-voltage dry-type transformer with tap terminals in the prior art does not meet this minimum standard
Therefore, it is proposed to form a rectangular insulating wall outside the tap terminal of the dry-type transformer to increase the creepage distance, and form an abrupt insulating wall structure on the outer wall of the transformer shell, which requires the transformer shell to be molded again, which increases the manufacturing cost. Moreover, the previous transformer housing could not use this technology

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
  • A protective seat on the tap terminal of a dry-type transformer
  • A protective seat on the tap terminal of a dry-type transformer
  • A protective seat on the tap terminal of a dry-type transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0018] Example: see Figures 1 to 3 As shown, a protective seat on a tap terminal of a dry-type transformer includes a ceramic seat body 1 in the shape of "back", the lower end of the ceramic seat body 1 is provided with a flange 11, and several " "back"-shaped groove 12, the groove 12 of the ceramic base 1 is inserted and fixed with a sealing ring 2, and several groups of relative positioning blocks 13 are formed on the opposite inner wall of the ceramic base 1, and the two side walls of the positioning block 13 Slots 14 are formed on the top; a rectangular sleeve 4 is provided between the opposite positioning blocks 13 on both sides of the ceramic base 1, and the two ends of the sleeve 4 are inserted with a "匚"-shaped jacket 3, and the jacket 3 The two ends are inserted into the slots 14 of the positioning block 13; the upper end surface of the pipe sleeve 4 is formed with a rectangular notch 41, and the lower end of the pipe sleeve 4 is formed with a threaded hole 42, and t...

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 protective base on the tapping terminal of a dry type transformer. The protective base comprises a ceramic base in the shape like a Chinese character ''hui'', wherein a flange is arranged at the lower end of the ceramic base, a plurality of grooves in the shapes like the Chinese character ''hui'' are formed in the bottom surface of the flange, seal rings are fixedly arranged inside the grooves of the ceramic base in an inserted connection manner, a plurality of groups of opposite positioning blocks are formed on the opposite inner walls of the ceramic base, and inserting grooves are formed in two side walls of each positioning block; a rectangular pipe sleeve is arranged between the opposite positioning blocks on two sides of the ceramic base, two ends of the pipesleeve are connected with a jacket in the shape like a Chinese character ''men'' in an inserted manner, and two ends of the jacket are connected into the inserting grooves of the positioning blocks in the inserted manner; a rectangular notch is formed in the upper end face of the pipe sleeve, a threaded hole is formed in the lower end of the pipe sleeve, a trapezoidal wedge block is connected into the rectangular notch of the pipe sleeve in the inserted manner, the jacket abuts against two side walls of the wedge block, the wedge block is connected with a bolt in the inserted manner, and thebolt passes through the wedge block to be in screw joint into the threaded hole of the pipe sleeve. According to the protective base, mounting and dismounting on a transformer shell are realized conveniently, the shape of the transformer shell and mold opening do not need to be changed, so that the cost is saved.

Description

Technical field: [0001] The invention relates to the technical field of transformers, in particular to a protective seat on a tap terminal of a dry-type transformer. Background technique: [0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Traditional transformers can be divided into oil-immersed transformers, fully sealed transformers, combined transformers and dry-type transformers. For the small-capacity, high-voltage casting transformers with tap terminals currently on the market, the high-voltage outlet terminals and high-voltage tap terminals are generally placed on both sides of the transformer coil. The safety distance of terminals and transformers is also required to be relatively large. [0003] When the performance of insulating materials is degraded, it is affected by external factors such as weather, such as high air humidity, successive cloudy and mildewy rainy seasons, and humid environments. The elec...

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 Patents(China)
IPC IPC(8): H01F27/32
CPCH01F27/324
Inventor 李胜利
Owner 江苏一开电力科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products