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

Arc quenching system

An arc extinguishing device and arc guiding technology, applied in emergency protection devices, parts of protection switches, electrical components, etc., can solve the problems of rising temperature rise and increasing power consumption of line protection switches

Active Publication Date: 2006-12-13
SIEMENS AG
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the arc blowing circuit is continuously flowed by the working current of a switch circuit, which will increase the power consumption, thereby causing the temperature rise of the line protection switch to increase

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
  • Arc quenching system
  • Arc quenching system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 Shown is a section through a switchgear 1 with an arc quenching device, said switchgear having a housing 2 shown here in diagrammatic form. In this embodiment, the switchgear 1 is implemented as a line protection switch, which, in addition to an electromagnetic release 3, also has a thermal release 4 and a pair comprising a fixed contact 5 and a moving contact 6 in the Inside switch contacts. The static contact 5 is fixed on an arc-guiding track 7 which functions as a contact seat, and the arc-guiding track 7 also has a conductive connection with a coil of the electromagnetic release 3 . The coil itself leads to a connection terminal which is shown here in diagrammatic form. The free end of the arc guide track 7 passes through an adjacent yoke and leads into an arc extinguishing chamber 8 . The part of the arc-guiding track 7 behind the fixed contact 5 leading to the arc-extinguishing chamber 8 is designed as an ear. The movable contact 6 is fastened to a m...

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 aim of the invention is to create an arc quenching system for a switching device, which ensures low heat build-up and fast quenching of an arc using simple means. Said aim is achieved by providing a current conducting path which comprises an electrically conducting passage to an additional arc guide rail so as to form a conductor loop and is electrically insulated relative to a pair of switching contacts. The conductor loop is not connected to the pair of switching contacts while being arranged in the area of an interrupter chamber such that a current (I) which drives the arc into the arcing chamber is conducted via the current conducting path when the arc commutates from one of the switching contacts to the additional arc guide rail.

Description

technical field [0001] The invention relates to an arc quenching device for a switchgear according to claim 1 . Background technique [0002] This type of arc extinguishing device is used to interrupt or extinguish the arc generated when a pair of current-carrying contacts is disconnected. When the contacts are separated from each other, the current flows in a correspondingly smaller contact area, so that the temperature in this area gradually increases. A moment before the contact is separated, a melting bridge will be generated, and the melting bridge will eventually be broken when the current is small; when the current is large, the melting bridge will evaporate. Therefore, the current can only continue to flow through an arc in the form of a conductive plasma column. [0003] The type and magnitude of the switching current will have an effect on the strength of this arc. When a short-circuit occurs in a circuit protected by a circuit breaker, for example a short-circu...

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): H01H73/18H01H9/44H01H71/12
CPCH01H9/44H01H73/18H01H71/121
Inventor 冈瑟·埃克特保罗·赫马沃尔夫冈·莱特尔
Owner SIEMENS 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