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

Low- voltage, medium- voltage or high- voltage switchgear assembly having a short-circuiting system

By arranging short-circuit equipment in the vacuum circuit breaker chamber and utilizing the design of membrane subdivision and gas generator drive piston, the problem of slow switching speed of medium voltage switchgear components is solved, fast fault handling and stable electrical characteristics are achieved, and the cost is reduced Equipment complexity and cost.

Active Publication Date: 2010-08-04
ABB (SCHWEIZ) AG
View PDF9 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This in turn requires compact, complex ground current paths to carry the typically higher fault currents for shorter periods of time
Additionally, over the lifetime of the device, the current degrades the switching rate and isolation

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
  • Low- voltage, medium- voltage or high- voltage switchgear assembly having a short-circuiting system
  • Low- voltage, medium- voltage or high- voltage switchgear assembly having a short-circuiting system
  • Low- voltage, medium- voltage or high- voltage switchgear assembly having a short-circuiting system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] figure 1 An exemplary embodiment of the invention is shown.

[0033] In this case, the shown short-circuit device for extinguishing a fault arc will be described in a closed or open switchgear assembly which short-circuits the three phases (R, Y and B) to each other in the event of a fault, Specifically based on a phase short circuit between phases (R, Y; Y, B) using "two" vacuum interrupter chambers or "one" vacuum interrupter chamber. When a fault occurs (in this case an arc fault), for example, as figure 1 Two such vacuum interrupter chambers, or "three-phase" vacuum interrupter chambers shown in , are closed so that current passes from the fault arc to the vacuum interrupter chamber. This is achieved by using a gas generator 1 which may take the form of an explosive sleeve arranged on one side of the vacuum interrupter chamber and, after being triggered, by means of a piston 2 in the direction of a fixed contact 8 Accelerate the moving contact 7. For the fixed c...

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 low-voltage, medium-voltage or high-voltage switchgear assembly equipped with a short-circuiting system as claimed in the preamble of patent claim 1. In order in this case to allow rapid switching with physically simple means, the invention proposes that the short-circuiting device is arranged in a vacuum interrupter chamber and the vacuum area in which the fixed contact piece is placed is subdivided via a membrane which is provided with a weak breaking line and which can be penetrated by the moving piston system to the contact piece during switching.

Description

technical field [0001] The invention relates to a low-voltage, medium-voltage and high-voltage switchgear assembly with a short-circuit system as stated in the preamble of patent claim 1 . Background technique [0002] Low-voltage, medium-voltage and high-voltage switchgear components have the task of distributing energy flows and ensuring safe operation. In the unlikely event of an internal fault (fault arc), the safety of the installation and the safety of persons must also be ensured. Due to its temperature, an arc fault occurring within a switchgear assembly produces a sharp gas pressure rise within a period of a few milliseconds, and this can cause the switchgear assembly to be destroyed by an explosion. Therefore, take steps to dissipate the pressure as quickly as possible. Furthermore, it is desirable to confine arc faults to the relevant area and never endanger operators. [0003] By proper design, eg by internal subdivision (division into zones) of the switch pan...

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): H01H39/00
CPCH01H33/666H01H39/004H01H79/00H01H33/6646
Inventor D·根奇
Owner ABB (SCHWEIZ) AG
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