Thermal-electric-mechanical multi-stress ageing test platform of extra-high voltage converter transformer paper oil insulation materials and testing method thereof

A converter transformer, oil-paper insulation technology, applied in the direction of instruments, measuring electricity, measuring electric variables, etc.

Inactive Publication Date: 2018-06-29
XI AN JIAOTONG UNIV
View PDF3 Cites 20 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the existing aging experiment platforms can only conduct thermal aging or thermoelectric aging experiments on oil-paper insulation materials, and there are few reports on the "thermal-electric-mechanical" joint aging experiments on oil-paper insulation materials.

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
  • Thermal-electric-mechanical multi-stress ageing test platform of extra-high voltage converter transformer paper oil insulation materials and testing method thereof
  • Thermal-electric-mechanical multi-stress ageing test platform of extra-high voltage converter transformer paper oil insulation materials and testing method thereof
  • Thermal-electric-mechanical multi-stress ageing test platform of extra-high voltage converter transformer paper oil insulation materials and testing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0039] see figure 1 , the thermal-electrical-mechanical multi-stress combined aging experiment platform for UHV converter transformer oil-paper insulation materials disclosed in the present invention includes a vibrating table 1 and several aging test chambers arranged above the vibrating table 1, and the aging test chambers are filled with To test the insulating transformer oil, a sealing cover is provided on the top of the aging test chamber, and the sealing cover is provided with an oil injection port 10, an air injection port 9, an air extraction port 8 and a pressure reducing valve 7; inside the aging test chamber, there are several plates-plates The electrode 5 and the insulating paper 6 to be tested are arranged between the two electrode plates of the plate-plate electrode 5, and the p...

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 present invention discloses a thermal-electric-mechanical multi-stress ageing test platform of extra-high voltage converter transformer paper oil insulation materials and a testing method thereof.The test platform comprises three stress modules; a thermal stress module comprises a heating plate arranged at the outer wall of an ageing test chamber to allow paper oil insulation materials to reach an assigned temperature; an electric stress module is formed by a voltage source and an electrode and is configured to provide a direct current voltage, an alternating current voltage and an alternating current / direct current compound voltage for the paper oil insulation materials, wherein the direct current voltage and the alternating current voltage can reach an assigned voltage level; and amechanical stress module is formed by a vibration table, wherein the vibration table can provide mechanical vibration with assigned frequency and amplitude. When the thermal-electric-mechanical modules work at the same time, the thermal-electric-mechanical modules can provide various stress ageing conditions for the paper oil insulation materials to simulate the complex work conditions of the internal portion of a converter transformer and perform individual regulation of three stresses so as to facilitate analysis and obtain ageing effects of three different stresses for the paper oil insulation materials.

Description

technical field [0001] The invention belongs to the technical field of oil-paper insulation for UHV converter transformers, and in particular relates to a thermo-electric-mechanical multi-stress combined aging experiment platform and an experiment method for UHV converter transformer oil-paper insulation materials. Background technique [0002] As an excellent composite insulating material, oil-paper insulating material has been used as the main insulating material in transformers since the last century because of its excellent insulating properties, low cost, and easy availability in large quantities. Since the service life of some transformers is gradually approaching and exceeding its design service life, there have been a large number of studies on the thermal aging mechanism, state assessment and life prediction of oil-paper insulation materials in transformers. In the field of HVDC transmission, oil-paper insulation materials are widely used in UHV converter transforme...

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): G01R31/12
CPCG01R31/1263
Inventor 李盛涛李世军崔惠泽闫威葛昭杨柳青
Owner XI AN JIAOTONG UNIV
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