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

Device and method for improving local overheating phenomenon and temperature non-uniformity of converter transformer

A converter transformer and local overheating technology, applied in the field of power transformers, can solve the problems of overheating temperature, overheating and unevenness of converter transformers

Active Publication Date: 2021-05-04
XI AN JIAOTONG UNIV +2
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In order to overcome the above-mentioned problems in the prior art, the object of the present invention is to provide a device for improving the local overheating phenomenon and temperature inhomogeneity of the converter transformer, so as to improve the local overheating phenomenon of the converter transformer

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
  • Device and method for improving local overheating phenomenon and temperature non-uniformity of converter transformer
  • Device and method for improving local overheating phenomenon and temperature non-uniformity of converter transformer
  • Device and method for improving local overheating phenomenon and temperature non-uniformity of converter transformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in detail:

[0035] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a device for improving the local overheating phenomenon and temperature inhomogeneity of the converter transformer is characterized in that it includes a hollow box 1 of the converter transformer, and guides are installed at each oil inlet 3 of the hollow box 1. The oil structure 2, the inner wall surface of the hollow box 1 perpendicular to the ground direction is provided with small holes 6 at multiple positions parallel to the ground direction, some of the small holes 6 are used to install orientations extending to the vicinity of the local overheating position of the converter transformer Nozzle structure 7; the oil guide structure 2 includes an axial outlet 4 and a radial outlet 5, and one end of the axial outlet 4 located in the hollow box 1 communicates with the flange 10, an...

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 device and method for improving the local overheating phenomenon and temperature inhomogeneity of a converter transformer. By adopting structures such as a hollow box, an oil guide structure, and small holes, the internal flow field of the converter transformer is distributed more uniformly, and the temperature is improved. The convective heat transfer efficiency of transformer oil enhances the heat and mass transfer between transformer oils, thereby improving the inhomogeneity of temperature distribution inside the converter transformer. The local overheating phenomenon of the converter transformer is improved by adopting the directional nozzle structure to locally strengthen the heat exchange at the local overheating position.

Description

technical field [0001] The invention relates to the technical field of power transformers, in particular to a device and method for improving local overheating and temperature inhomogeneity of converter transformers. Background technique [0002] The converter transformer is one of the most important equipment in the high-voltage direct current transmission system, which is determined by its position at the core of alternating current and direct current conversion, as well as its complexity in equipment manufacturing technology and high equipment manufacturing cost. During the operation of the converter transformer, there are characteristic harmonic currents and non-characteristic harmonic currents flowing, and the harmonic components will significantly increase the stray losses in the converter transformer windings, iron core and metal structural parts, resulting in Localized overheating occurs. Excessive temperature will accelerate the aging of insulating materials, reduc...

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): H01F27/12H01F27/02
CPCH01F27/025H01F27/12
Inventor 余小玲谭又博汲胜昌臧英代双寅
Owner XI AN JIAOTONG UNIV
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