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

Novel extra-high voltage direct current isolation switch shielding device

An ultra-high voltage DC, isolating switch technology, applied in electrical switches, air switch parts, contact housings/screens, etc., can solve problems such as edge effects and the inability of annular voltage equalizing devices to meet insulation performance requirements, and achieve improved performance. Insulation level, eliminate edge effect, improve the effect of electrode shape

Pending Publication Date: 2022-01-11
山东泰开隔离开关有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the highest voltage level of high-voltage DC isolating switches in operation is ±800kV. For ±1100kV UHV transmission projects, in view of the importance of ±1100kV UHV transmission projects and site limitations, higher requirements are proposed for ±1100kV UHV DC isolating switches. The current general ±800kV DC isolating switch structure cannot meet its requirements, especially the annular voltage equalizing device cannot meet its insulation performance requirements, and there is an edge effect phenomenon

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
  • Novel extra-high voltage direct current isolation switch shielding device
  • Novel extra-high voltage direct current isolation switch shielding device
  • Novel extra-high voltage direct current isolation switch shielding device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] Such as Figure 1 to Figure 4 As shown, a new UHV DC isolating switch shielding device includes a moving contact shield 1 and a static contact shield 3 for use in conjunction with a post insulator 4. The post insulator 4 is provided with two groups, each of which is Three insulators are arranged in a regular triangle, and a main switch knife is arranged between the upper ends of two sets of post insulators 4, and an elbow shield 2 is arranged on the main switch knife.

[0027] In this embodiment, the moving contact shield 1 and the static contact shield 3 are apple-shaped, and the top of the moving contact shield 1 and the top of the static contact shield 3 are arc-shaped surfaces protruding upwards, and the moving The edge parts of the contact shield 1, the static contact shield 3 and the elbow shield 2 are all inverted large arc structures. The mov...

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 a novel extra-high voltage direct current isolation switch shielding device which comprises a moving contact shielding cover and a static contact shielding cover used in cooperation with supporting insulators. The group number of the supporting insulators is two, each group is three insulators arranged in a regular triangle shape, a main knife switch is arranged between the upper ends of the two groups of supporting insulators, the main knife switch is provided with an elbow shielding cover, the moving contact shielding cover and the static contact shielding cover are apple-shaped, and the top of the moving contact shielding cover and the top of the static contact shielding cover are arc-shaped surfaces protruding upwards. The shielding device can greatly improve the electrode shape of the extra-high voltage direct current isolation switch, effectively reduce the non-uniform degree of an electric field, eliminate the fringe effect and greatly improve the insulation level of the extra-high voltage direct current isolation switch.

Description

technical field [0001] The invention relates to the technical field of shielding devices, in particular to a novel UHV DC isolation switch shielding device. Background technique [0002] In my country, UHV refers to the voltage level of ±800 kV and above direct current and 1000 kV and above alternating current. UHV DC transmission has the inherent characteristics of large capacity, long distance, low loss, and low land occupation. It is a power transmission method in line with my country's basic national conditions. It can realize a wider range of resource optimization and promote the efficient development and utilization of energy in my country. The sustainable development of economy and society will greatly promote the effective development and efficient utilization of domestic energy resources, and further improve the safe and stable operation level of the power grid and the ability to resist accidents. UHV DC isolating switch is one of the important primary equipment of ...

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): H01H1/64H01H9/02H01H31/02
CPCH01H31/02H01H9/02H01H1/64
Inventor 李善成卢立富杨磊田长兴马星雷
Owner 山东泰开隔离开关有限公司
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

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