Isolating switch

A technology of isolation switch and arc suppression, which is applied in the field of high-voltage switchgear, can solve the problems of weak conversion current capability and contact ablation, and achieve the effect of improving the conversion current capability and reducing the degree of arc ablation

Inactive Publication Date: 2009-11-25
HENAN PINGGAO ELECTRIC +1
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] In view of this, the embodiment of the present invention provides an isolating switch to solve the problems that the isolating switch has a weak ability to switch off the busbar to convert current and severe contact ablation

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
  • Isolating switch
  • Isolating switch
  • Isolating switch

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] See figure 1 , the moving contacts in the isolating switch can be composed of moving main contacts 101 and moving arcing contacts 102, and the static contacts can be composed of static main contacts 103 and static arcing contacts 104; coils are installed on the moving arcing contacts 102 105, and set the supporting seat 106 for installing the coil 105, one end of the moving main contact 101 is connected with the mechanism through an insulating pull rod, the other end of the moving main contact 101 is connected with the moving arc contact 102 through the moving end contact seat 107, and the static The main contact 103 and the static arc contact 104 are connected by bolts; the dynamic arc contact 102 and the static arc contact 104 are made of materials resistant to arc ablation, generally copper-tungsten alloy; the coil 105 is made of high heat resistant materials. Generally, copper wire and heat-resistant shrink tube are used.

[0028] The working process of the isolati...

Embodiment 2

[0031] See figure 2 , install the coil 202 on the static arc contact 201, and set the support seat 203 for installing the coil, one end of the moving main contact 204 is connected with the mechanism through an insulating pull rod, and the other end of the moving main contact 204 and the moving arc contact 205 pass through The moving end contact seat 206 is connected, and the static main contact 207 is connected with the static arc contact 201 through bolts; the moving arc contact 205 and the static arc contact 201 are made of materials resistant to arc ablation, generally copper-tungsten alloy; The coil 202 is made of high heat resistant material, generally copper wire and high heat resistant shrink tube.

[0032] The working process of the isolating switch is as follows:

[0033] When the isolating switch breaks the busbar conversion current, an arc 209 is generated between the moving and static contacts, and the arc current enters the coil to form a magnetic field 208. The...

Embodiment 3

[0035] See image 3 A coil 303 and a support seat 304 are respectively arranged on the moving arc contact 301 and the static arc contact 302, one end of the moving main contact 305 is connected with the mechanism through an insulating pull rod, and the other end of the moving main contact 305 is connected to the moving arc contact 301 is connected through the moving end contact seat 306, and the static main contact 307 is connected with the static arc contact 302 through bolts; the moving arc contact 301 and the static arc contact 302 are made of materials resistant to arc ablation, generally copper tungsten Alloy; the coil 303 is made of high heat-resistant material, generally copper wire and high heat-resistant shrink tube.

[0036] The working process of the isolating switch is as follows:

[0037] When the isolating switch breaks the busbar conversion current, an arc 309 is generated between the moving and static contacts, and the arc current enters the coil to form a mag...

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 embodiment discloses an isolation switch, comprising a movable contact and a stationary contact. An arc-extinguishing device is installed on the movable contact and / or the stationary contact. The isolation switch introduces the arcing current generated between the contacts into a coil in the process of converting the current by turning on / off the bus. The coil forms a magnetic field. The electric arc can be extinguished stably, driven by a magnetic field force, thus reducing the arc erosion degree of the contact, effectively improving the ability of the isolation switch for converting the current by turning on / off the bus.

Description

technical field [0001] The invention relates to the field of high-voltage switchgear, more specifically, to an isolating switch. Background technique [0002] The isolating switch is the most widely used electrical appliance in the high-voltage switchgear. The main functions of the isolating switch include the following points: [0003] 1) After opening, establish a reliable insulation gap, and separate the equipment or lines that need to be repaired from the power supply with an obvious disconnection point to ensure the safety of maintenance personnel and equipment; [0004] 2) According to the operation needs, switch the line; [0005] 3) It can be used to divide and close small currents in the line, such as the charging current of bushings, busbars, connectors, and short cables, the capacitive current of switch equalizing capacitors, the circulating current when double busbars are switched, and the excitation current of voltage transformers Wait; [0006] 4) According ...

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): H01H9/30H01H9/44H01H33/04H01H33/18H01H33/62
Inventor 舒印彪王晓刚韩书谟赵鸿飞谭盛武赵文强钟建英
Owner HENAN PINGGAO ELECTRIC
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