CN202905520U - Device capable of preventing contacts of disconnector from being burned and damaged by electric arc - Google Patents
Device capable of preventing contacts of disconnector from being burned and damaged by electric arc Download PDFInfo
- Publication number
- CN202905520U CN202905520U CN 201220509044 CN201220509044U CN202905520U CN 202905520 U CN202905520 U CN 202905520U CN 201220509044 CN201220509044 CN 201220509044 CN 201220509044 U CN201220509044 U CN 201220509044U CN 202905520 U CN202905520 U CN 202905520U
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- CN
- China
- Prior art keywords
- contact
- main
- arc
- movable
- movable contact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010891 electric arc Methods 0.000 title abstract description 13
- 238000000034 method Methods 0.000 abstract description 7
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000000977 initiatory effect Effects 0.000 abstract 8
- 230000003628 erosive effect Effects 0.000 description 10
- 238000002955 isolation Methods 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000012423 maintenance Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a device capable of preventing contacts of a disconnector from being burned and damaged by electric arc. The device comprises a main contact and a movable contact which is suitable for being connected with and separated from the main contact; the main contact and the movable contact are provided with an arc initiation component; the arc initiation component comprises a main arc initiation rod which is arranged above the main contact and a movable arc initiation rod which is arranged above the movable contact. In usage process, when the main contact and the movable contact are closed or separated from each other, the main arc initiation rod and the movable arc initiation rod contact with each other firstly or are separated from each other last, such that, electric arc is ignited; in the above process, produced electric arc only affect the main arc initiation rod and the movable arc initiation rod. Thus, it is can be ensured that the main contact and the movable contact are not burned and damaged by the electric arc; electric arc-resistant capabilities of the main contact and the movable contact can be improved; and the service lives of the main contact and the movable contact can be prolonged. The device of the utility model has the advantages of simple structure, convenient usage, and easiness in popularization of usage.
Description
Technical field
The utility model belongs to appliance switch protection technical field of tools, particularly a kind of device that prevents the isolation switch contact electrical arc erosion.
Background technology
GW5-126 type isolating switch is simple in structure, easy to maintenance, in electric power system, use very extensive, but this isolating switch is manually grasped, minute, closing speed is slower, the dielectric strength of air gap is low between contact, and self generally is not with arc-control device, be easy to minute, produce electric arc in the making process, the problem of contact electrical arc erosion when having operation, the contact of having to when scaling loss is serious change; Especially the isolating switch of bus bar side, one group of power failure range that goes wrong when needing maintenance is large more than the power failure range of a line disconnecting switch of maintenance, can cause the improper mode of bus to move, the reliability of bus-bar system is reduced, have influence on the safe and stable operation of electrical network.CN201408696Y discloses a kind of contact finger, comprise fingertip conductive arm, trigger installation, contact apparatus and contact conductive arm, described trigger installation is installed in the both sides of described fingertip conductive arm symmetrically, trigger installation comprises trigger installation return bend, fingertip finger tip and fingertip main conductive circuit section, and the trigger installation return bend points to the wire outlet seat direction.But this contact finger has just prolonged its electric arc and has burnt area, contact is not carried out the protection of actual property.
The utility model content
The utility model purpose is to provide a kind of device that prevents efficiently the isolation switch contact electrical arc erosion easy to use, safe.
To achieve these goals, the technical solution adopted in the utility model is: a kind of device that prevents the isolation switch contact electrical arc erosion, it comprises that main contact is connected and the movable contact that breaks away from described main contact with being connected, and described active contact and movable contact arrange the striking member.
Described striking member comprises the main starting rod that is positioned at described main contact top and the moving starting rod that is positioned at described movable contact top.
The utility model comprises that main contact is connected and the movable contact that breaks away from described main contact with being connected, and described active contact and movable contact arrange the striking member, can improve described main contact and described movable contact to the tolerance of electric arc.Described striking member comprises the main starting rod that is positioned at described active contact top and the moving starting rod that is positioned at described movable contact top, and described main starting rod and described moving starting rod are bolted to connection, and are difficult in the use procedure becoming flexible, coming off; During use, described main contact and described movable contact are closed or when separating, described main starting rod contacts at first with described moving starting rod or separates at last, electric arc ignites, minute, the electric arc that produces in the making process only acts on described main starting rod and the described moving starting rod, guarantee that described main contact and described movable contact not by electrical arc erosion, increase the service life.The utility model can well reduce the isolation switch contact electrical arc erosion, reduces frequency of power cut, has guaranteed the power equipment reliability of operation.The utility model is simple in structure, easy to use, generally promotes the use of than being easier to.
Description of drawings
The utility model is further described below in conjunction with accompanying drawing:
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of device that prevents the isolation switch contact electrical arc erosion, it comprises that main contact 1 is connected and the movable contact 2 that breaks away from described main contact 1 with being connected, described active contact 1 and movable contact 2 arrange the striking member.
Described striking member comprises the main starting rod 3 that is positioned at described main contact 1 top and the moving starting rod 4 that is positioned at described movable contact 2 tops.
The utility model comprises that main contact 1 is connected and the movable contact 2 that breaks away from described main contact 1 with being connected, and described active contact 1 and movable contact 2 arrange the striking member, can improve the tolerance of described main contact 1 and 2 pairs of electric arcs of described movable contact; Described arc-initiating device comprises the main starting rod 3 that is positioned at described active contact 1 top and the moving starting rod 4 that is positioned at described movable contact 2 tops, and described main starting rod 3 is fixedly connected with by bolt 5 with described moving starting rod 4, is difficult in the use procedure becoming flexible, coming off; During use, described main contact 1 and described movable contact 2 are closed or when separating, described main starting rod 3 contacts at first with described moving starting rod 4 or separates at last, electric arc ignites, minute, the electric arc that produces in the making process only acts on described main starting rod 3 and the described moving starting rod 4, guarantee that described main contact 1 and described movable contact 2 not by electrical arc erosion, increase the service life.The utility model can well reduce the isolation switch contact electrical arc erosion, reduces frequency of power cut, has guaranteed the power equipment reliability of operation.The utility model is simple in structure, easy to use, generally promotes the use of than being easier to.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509044 CN202905520U (en) | 2012-10-07 | 2012-10-07 | Device capable of preventing contacts of disconnector from being burned and damaged by electric arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220509044 CN202905520U (en) | 2012-10-07 | 2012-10-07 | Device capable of preventing contacts of disconnector from being burned and damaged by electric arc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202905520U true CN202905520U (en) | 2013-04-24 |
Family
ID=48126158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220509044 Expired - Fee Related CN202905520U (en) | 2012-10-07 | 2012-10-07 | Device capable of preventing contacts of disconnector from being burned and damaged by electric arc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202905520U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590769A (en) * | 2016-02-14 | 2016-05-18 | 河南平高电气股份有限公司 | Disconnecting switch |
-
2012
- 2012-10-07 CN CN 201220509044 patent/CN202905520U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105590769A (en) * | 2016-02-14 | 2016-05-18 | 河南平高电气股份有限公司 | Disconnecting switch |
| CN105590769B (en) * | 2016-02-14 | 2018-06-22 | 河南平高电气股份有限公司 | A kind of disconnecting switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20141007 |
|
| EXPY | Termination of patent right or utility model |