CN203839737U - Ring main unit bottom support with arc-extinguishing device - Google Patents
Ring main unit bottom support with arc-extinguishing device Download PDFInfo
- Publication number
- CN203839737U CN203839737U CN201420276199.6U CN201420276199U CN203839737U CN 203839737 U CN203839737 U CN 203839737U CN 201420276199 U CN201420276199 U CN 201420276199U CN 203839737 U CN203839737 U CN 203839737U
- Authority
- CN
- China
- Prior art keywords
- main unit
- ring main
- arc
- single frame
- blind hole
- 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
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a ring main unit bottom support with an arc-extinguishing device. The ring main unit bottom support comprises two single shelves and a plurality of arc-extinguishing columns which are arranged inside a ring main unit through arc-extinguishing holes arranged in the bottom surface of the ring main unit. The top surface of each single shelf is provided with a plurality of thread blind holes. The plurality of arc-extinguishing columns are fixedly connected with the top surfaces of the single shelves through the thread blind holes. The bottom surface of each single shelf is provided with a plurality of through holes. The single shelves are fixedly connected with the bottom surfaces through screws and the through holes. The arc-extinguishing columns are fixedly connected with the screws through conductive wires. According to the ring main unit bottom support with the arc-extinguishing device, through arranging the arc-extinguishing columns on the ring main unit bottom support, the support is allowed to play a ring main unit fixing function, and meanwhile, the support is capable of exporting free electrons dissociated in the ring main unit through the arc-extinguishing columns and is grounded, thereby reducing the influence of arc on the ring main unit.
Description
Technical field
The utility model relates to a kind of ring main unit support, relates in particular to a kind of ring main unit bottom bracket with arc-control device.
Background technology
Ring main unit is that one group of high voltage switchgear is contained in metal or nonmetal insulation cabinet or makes the electric equipment of assembled compartment ring network power supply unit, its core adopts on-load switch and fuse, have simple in structure, volume is little, price is low, can improve the advantages such as power supply parameter and performance and power supply safety; The formation of electric arc is the process that neutral proton between contact (molecule and atom) is dissociated.When switch contact is separated, contact pitch is from very little, and electric field strength E is very high.When electric field strength surpasses 3 * 10^6V/m, the electronics of cathode surface will be pulled out by electric field force and be formed the free electron in contact space, it not only has very large destruction to contact, and making the time lengthening of open circuit, the electric arc therefore producing in ring main unit can produce larger impact to switch and fuse wherein.
Utility model content
The purpose of this utility model provides a kind of ring main unit bottom bracket with arc-control device with regard to being in order to address the above problem.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of ring main unit bottom bracket with arc-control device, comprise two single framves and a plurality of arc extinguishing post that is arranged on described ring main unit inside by being arranged on the interrupter of described ring main unit bottom surface, on the end face of described single frame, be provided with a plurality of tapped blind holes, a plurality of described arc extinguishing posts are fixedly connected with the end face of described single frame by described tapped blind hole, on the bottom surface of described single frame, be provided with a plurality of through holes, and described single frame is fixedly connected with bottom surface with described through hole by screw, described arc extinguishing post is fixedly connected with described screw by conductor wire.
Particularly, described single frame is " U " shaped steel, and the end face length of described single frame is less than the length of described single frame bottom surface, and is provided with insulating cement in described tapped blind hole and described through hole.
Particularly, described arc extinguishing post comprises insulated column and conducting rod, the top of described insulated column is provided with insulation blind hole, and the bottom of described insulation blind hole is provided with conducting strip, described conducting strip is connected with described screw by described conductor wire, the bottom of described insulated column is fixedly connected with the described tapped blind hole of described single frame, and described conducting rod is arranged in the blind hole of described insulated column and contacts with the conducting strip in described insulation blind hole, and described conducting rod is arranged in described ring main unit.
The beneficial effects of the utility model are:
The ring main unit bottom bracket of the utility model band arc-control device is by being arranged on arc extinguishing post on ring main unit bottom bracket, make support when playing fixedly ring main unit, can the free electron being free in ring main unit be derived and ground connection by arc extinguishing post, reduce the impact of electric arc on ring main unit.
Accompanying drawing explanation
Fig. 1 is the perspective view of the ring main unit bottom bracket with arc-control device described in the utility model;
Fig. 2 is the cutaway view of single frame described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As depicted in figs. 1 and 2, the ring main unit bottom bracket of the utility model band arc-control device, comprise that two single framves 1 and a plurality of interrupter by ring main unit bottom surface are arranged on the arc extinguishing post 2 of ring main unit inside, on the end face of single frame 1, be provided with a plurality of tapped blind holes, a plurality of arc extinguishing posts 2 are fixedly connected with the end face of single frame 1 by tapped blind hole, on the bottom surface of single frame 1, be provided with a plurality of through holes, and single frame 1 is fixedly connected with bottom surface with through hole by screw 11, arc extinguishing post 2 is fixedly connected with screw 11 by conductor wire 24, single frame 1 is " U " shaped steel, and the end face length of single frame 1 is less than the length of single frame 1 bottom surface, and be provided with insulating cement in tapped blind hole and through hole, arc extinguishing post 2 comprises insulated column 21 and conducting rod 22, the top of insulated column 21 is provided with insulation blind hole, and the bottom of insulation blind hole is provided with conducting strip 23, conducting strip 23 is connected with screw 11 by conductor wire 24, the bottom of insulated column 21 is fixedly connected with the tapped blind hole of single frame 1, conducting rod 22 is arranged in the blind hole of insulated column 21 and with the conducting strip 23 in insulation blind hole and contacts, conducting rod 22 is arranged in ring main unit.
The operation principle of the ring main unit bottom bracket of the utility model band arc-control device is as follows:
When carrying out ring main unit installation, ring main unit and bottom bracket are fixed, arc extinguishing post 2 on bottom bracket is extended to ring main unit inside simultaneously, because be provided with conductor wire 24 in single frame 1, arc extinguishing post 2 is connected with the screw 11 of ground connection simultaneously, make ring main unit when work, free electron is wherein adsorbed by the conducting rod 22 in arc extinguishing post 2, then is connected to the earth by conductor wire 24 and screw 11, eliminates the free electron in ring main unit; Because arc extinguishing post 2 is threaded connection with single frame 1, because when not needing to carry out arc extinguishing, arc extinguishing post 2 can be removed simultaneously.
The technical solution of the utility model is not limited to the restriction of above-mentioned specific embodiment, and every technology distortion of making according to the technical solution of the utility model, within all falling into protection range of the present utility model.
Claims (3)
1. the ring main unit bottom bracket with arc-control device, it is characterized in that: comprise two single framves and a plurality of arc extinguishing post that is arranged on described ring main unit inside by being arranged on the interrupter of described ring main unit bottom surface, on the end face of described single frame, be provided with a plurality of tapped blind holes, a plurality of described arc extinguishing posts are fixedly connected with the end face of described single frame by described tapped blind hole, on the bottom surface of described single frame, be provided with a plurality of through holes, and described single frame is fixedly connected with bottom surface with described through hole by screw, described arc extinguishing post is fixedly connected with described screw by conductor wire.
2. the ring main unit bottom bracket with arc-control device according to claim 1, it is characterized in that: described single frame is " U " shaped steel, and the end face length of described single frame is less than the length of described single frame bottom surface, and be provided with insulating cement in described tapped blind hole and described through hole.
3. the ring main unit bottom bracket with arc-control device according to claim 1, it is characterized in that: described arc extinguishing post comprises insulated column and conducting rod, the top of described insulated column is provided with insulation blind hole, and the bottom of described insulation blind hole is provided with conducting strip, described conducting strip is connected with described screw by described conductor wire, the bottom of described insulated column is fixedly connected with the described tapped blind hole of described single frame, described conducting rod is arranged in the blind hole of described insulated column and contacts with the conducting strip in described insulation blind hole, and described conducting rod is arranged in described ring main unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276199.6U CN203839737U (en) | 2014-05-28 | 2014-05-28 | Ring main unit bottom support with arc-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420276199.6U CN203839737U (en) | 2014-05-28 | 2014-05-28 | Ring main unit bottom support with arc-extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203839737U true CN203839737U (en) | 2014-09-17 |
Family
ID=51517536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420276199.6U Expired - Fee Related CN203839737U (en) | 2014-05-28 | 2014-05-28 | Ring main unit bottom support with arc-extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203839737U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577814A (en) * | 2014-12-26 | 2015-04-29 | 国家电网公司 | Heat-dissipation ring main unit provided with arc-control devices |
-
2014
- 2014-05-28 CN CN201420276199.6U patent/CN203839737U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104577814A (en) * | 2014-12-26 | 2015-04-29 | 国家电网公司 | Heat-dissipation ring main unit provided with arc-control devices |
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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: 20140917 Termination date: 20150528 |
|
| EXPY | Termination of patent right or utility model |