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

Current transformer

A technology for current transformers and conductive tubes, applied in the field of transformers, can solve the problems of failing to meet the temperature rise requirements, insulation damage, insulation aging and shortening the service life of equipment, reducing volume, increasing effective cross-sectional area, and solving Effects of installation problems

Inactive Publication Date: 2018-02-16
TIANSHUI CHANGKAI MUTUAL INDUCTOR MFR
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the transformer industry, the primary copper conductor in the high-current transformer will produce a current skin effect after passing through the current, and the charge will concentrate on the surface of the primary conductor. As time goes by, the temperature of the conductor surface will continue to rise. The aging of the insulation shortens the service life of the equipment, and even leads to insulation damage, which fails to meet the temperature rise requirements stipulated by the national standard

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
  • Current transformer
  • Current transformer
  • Current transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0009] Such as figure 1 , figure 2 , image 3 As shown, the primary coil 3 is a split structure, which is assembled by a cylindrical conductive rod 1 and a tubular conductive tube 2 and then welded by silver welding. This split structure allows current to flow through both the conductive rod 1 and the conductive tube 2 , can overcome the influence of the skin effect; such as Figure 4 , Figure 5 As shown, the primary terminal block 4 is in the shape of an "L" and consists of a connecting arm 5 and a flat terminal block 6. The flat terminal block 6 has threaded holes 8. The upper end of the connecting arm 5 is provided with a connecting hole 7, and the two ends of the conductive pipe 2 are provided with steps. 9 is installed in the connection hole 8 and welded with silver solder, so that the primary coil 3 and the wiring board 4 are connected together.

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 current transformer, which is capable of solving the problem of temperature rise of a primary copper conductor due to a skin effect. The current transformer comprises a primary coil and two primary wiring boards, wherein the primary coil is formed by combining a cylindrical conducting rod and a tubular conducting tube sleeving the cylindrical conducting rod; each wiring board is L-shaped and comprises a connecting arm and a flat wiring board; a connection hole is formed in the upper end of each connecting arm; and the primary coil is connected with the wiring boards through the corresponding connection holes.

Description

technical field [0001] The invention relates to a transformer, in particular to a large current transformer. Background technique [0002] In the transformer industry, the primary copper conductor in the high-current transformer will produce a current skin effect after passing through the current, and the charge will concentrate on the surface of the primary conductor. As time goes by, the temperature of the conductor surface will continue to rise. The aging of the insulation shortens the service life of the equipment, and even leads to insulation damage, which fails to meet the temperature rise requirements stipulated by the national standard. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a current transformer, which can solve the temperature rise problem of the primary copper conductor due to the skin effect. [0004] In order to solve the above technical problems, the technical solution of the present inven...

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
IPC IPC(8): H01F27/28H01F27/29H01F27/34H01F38/30
CPCH01F27/28H01F27/29H01F27/34H01F38/30
Inventor 张才丽史纪平潘志清
Owner TIANSHUI CHANGKAI MUTUAL INDUCTOR MFR
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com