A converter transformer oil paper insulator surface charge measuring apparatus and a measuring method thereof

A technology of oil-paper insulation and surface charge, applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve problems such as insulation failure of the main insulation on the valve side

Inactive Publication Date: 2016-11-23
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +2
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the insulation structure of the converter transformer is conservatively designed, insulation failures often occur in the main insulation of the valve side in actual operation.

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 converter transformer oil paper insulator surface charge measuring apparatus and a measuring method thereof
  • A converter transformer oil paper insulator surface charge measuring apparatus and a measuring method thereof
  • A converter transformer oil paper insulator surface charge measuring apparatus and a measuring method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0037] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0038] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as...

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 relates to an oil paper insulator surface charge measuring apparatus and a measuring method thereof. The oil paper insulator surface charge measuring apparatus comprises a support mechanism, a charge injection mechanism and a surface potential measuring mechanism. An output power supply of the charge injection mechanism can output a plurality of types of voltages. In usage, a to-be-tested oil-paper insulator is placed on a platform and under a pin electrode; the type of the output voltage is adjusted to conduct corona charging; the output voltage of the output power supply is adjusted to zero immediately after the charging is finished; the oil-paper insulator after charging is moved to be below a detection probe on the other side of the platform; and a surface voltage value of the oil-paper insulator changing with time after the charging is measured by the surface potential measuring mechanism. By using the oil paper insulator surface charge measuring apparatus, it is possible to easily and quickly detect variation characteristics of the surface voltages and surface charges of insulators under various voltage conditions and have a deeper understanding of charge transport characteristics.

Description

technical field [0001] The invention relates to the technical field of electric charge measurement, in particular to an oil-paper insulation surface electric charge measuring device and a measuring method thereof. Background technique [0002] As the key equipment in EHV and UHV DC transmission systems, the reliability of converter transformer directly affects the safe operation of the entire power system. As the main insulating material of the bushing, oil-paper insulation not only affects the dielectric strength of the material, but also induces the formation of partial discharge channels, which is the main factor restricting the dielectric strength of the dielectric material insulation; it is also related to the operation stability of DC transmission equipment and reliability. Although the insulation structure of the converter transformer is conservatively designed, insulation failures often occur in the main insulation of the valve side in actual operation. This is due...

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): G01R29/24
CPCG01R29/24
Inventor 侯帅傅明利田野卓然惠宝军杜伯学李进韩涛朱闻博
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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