CN108666921A - A kind of blowout unit for switchgear - Google Patents
A kind of blowout unit for switchgear Download PDFInfo
- Publication number
- CN108666921A CN108666921A CN201810491925.9A CN201810491925A CN108666921A CN 108666921 A CN108666921 A CN 108666921A CN 201810491925 A CN201810491925 A CN 201810491925A CN 108666921 A CN108666921 A CN 108666921A
- Authority
- CN
- China
- Prior art keywords
- cavity
- conductive body
- annular conductive
- switchgear
- resistance
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
- H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
- H02B13/025—Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of blowout units for switchgear, including：First cavity and the second cavity, it is provided with annular conductive body in first cavity, resistance and two switch contacts, there are one input terminal and an output ends for the annular conductive body setting, the switch contact is respectively arranged at the arrival end of first cavity and the second cavity, and the input terminal of the annular conductive body is connect with the switch contact, and the resistance is set to the output end of the annular conductive body, first cavity is connect with second cavity, is vacuum environment in second cavity.The blowout unit for switchgear of the present invention is provided with the first cavity and the second cavity, electric arc is fallen by resistance consumption in the first cavity, and the arc extinguishing environment of vacuum is provided in the second cavity, under double action, ensure the complete elimination of the electric arc of high intensity in switchgear, phenomena such as without will produce explosion or vibrations, the usage safety performance and stability of switchgear are ensured.
Description
Technical field
The present invention relates to switchgear technical fields, more particularly to a kind of blowout unit for switchgear.
Background technology
In switchgear, due to the interference of high temperature and multiple circuit components, thus it will produce in switchgear larger
Electric arc.Particularly with high-tension switch cabinet, in order to ensure the steady operation of switchgear, it usually needs carry out arc extinguishing processing.It is switching
Arc-chutes there are one being normally set up in cabinet, and enable electric arc rapidly disappear using gas or oil or using vacuum environment.This makes
Arc extinguishing process is fiercer, and easy tos produce explosion, vibration etc., and when be commonly present the halfway problem of arc extinguishing.
Invention content
The present invention solves the technical problem of：The arc extinguishing processing of existing switchgear is quick-fried in the presence of being not thorough or being also easy to produce
The problems such as broken vibration.
In order to solve the above technical problems, one aspect of the present invention is：The present invention provides one kind being used for switchgear
Blowout unit, which is characterized in that including：First cavity and the second cavity are provided with annular conductive body in first cavity,
Resistance and two switch contacts, there are one input terminal and an output end, the switch contacts point for the annular conductive body setting
It is not set to the arrival end of first cavity and the second cavity, input terminal and the switch contact of the annular conductive body connect
It connecing, the resistance is set to the output end of the annular conductive body, and first cavity is connect with second cavity, and described
It is vacuum environment in two cavitys.
Preferably, the outer wall of first cavity and second cavity is insulation outer wall.
Preferably, the resistance value of the resistance is adjustable.
Preferably, ranging from 500 ohm -2000 ohm of the resistance value.
Preferably, the shaft core position of the annular conductive body is provided with insulation along perpendicular to the direction of annular conductive body
Column.
Preferably, the cross-sectional area of the insulated column is no more than 1/10th of the cross-sectional area of the annular conductive body.
The beneficial effects of the invention are as follows：The blowout unit for switchgear of the present invention is provided with the first cavity and the second chamber
Body is in the first cavity fallen electric arc by resistance consumption, and the arc extinguishing environment of vacuum, dual work are provided in the second cavity
Under, it is ensured that the complete elimination of the electric arc of high intensity in switchgear, without will produce explosion or vibrations phenomena such as, ensured and opened
Close the usage safety performance and stability of cabinet.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, wherein：
Fig. 1 is the structural schematic diagram of one preferred embodiment of blowout unit for switchgear of the present invention.
Specific implementation mode
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
All other embodiment that technical staff is obtained without making creative work belongs to the model that the present invention protects
It encloses.
Referring to Fig. 1, a preferred embodiment as the present invention, the blowout unit for switchgear include：The
The outer wall of one cavity 1 and the second cavity 2, first cavity 1 and second cavity 2 is insulation outer wall.First cavity 1
Inside it is provided with annular conductive body 11, resistance 12 and two switch contacts 13.There are one input terminals for the setting of annular conductive body 11
111 and an output end 112.First cavity 1 is connect with second cavity 2.The switch contact 13 is respectively arranged at
The arrival end of first cavity 1 and second cavity 2.The input terminal 111 of the annular conductive body 11 and it is set to first
The switch contact 13 in cavity connects, and the output end of the annular conductive body 11 is connect with the resistance 12, the resistance
12 resistance value can be adjusted between 500 ohm -2000 ohm.It thus disclosure satisfy that the arc extinguishing processing of different arc stiffness.
The shaft core position of the annular conductive body 11 is provided with insulated column 14, the insulation along perpendicular to the direction of annular conductive body 11
The cross-sectional area of column 14 is 1/10th of the cross-sectional area of the annular conductive body.Insulated column 14 can prevent annular conductive body
Medium position formed paradoxical discharge.It is vacuum environment in second cavity 2, leads to again after the processing of 1 arc extinguishing of the first cavity
The switch contact 13 for crossing the arrival end for being set to the second cavity 2 enters the vacuum environment progress arc extinguishing processing of the second cavity 2, ensures
Arc extinguishing is thorough.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalent structure or equivalent flow shift made by bright description is applied directly or indirectly in other relevant technology necks
Domain is included within the scope of the present invention.
Claims (6)
1. a kind of blowout unit for switchgear, which is characterized in that including：First cavity（1）With the second cavity（2）, described
First cavity（1）Inside it is provided with annular conductive body（11）, resistance（12）With two switch contacts（13）, the annular conductive body
（11）There are one input terminals for setting（111）With an output end（112）, the switch contact（13）It is respectively arranged at described first
Cavity（1）With the second cavity（2）Arrival end, the annular conductive body（11）Input terminal（111）With the switch contact
（13）Connection, the resistance（12）It is set to the output end of the annular conductive body（112）, first cavity（1）With it is described
Second cavity（2）Connection, second cavity（2）Interior is vacuum environment.
2. a kind of blowout unit for switchgear according to claim 1, which is characterized in that first cavity（1）
With second cavity（2）Outer wall be insulation outer wall.
3. a kind of blowout unit for switchgear according to claim 1, which is characterized in that the resistance（12）Resistance
Value is adjustable.
4. a kind of blowout unit for switchgear according to claim 3, which is characterized in that the range of the resistance value
It is 500 ohm -2000 ohm.
5. a kind of blowout unit for switchgear according to claim 1, which is characterized in that the annular conductive body
（11）Shaft core position along perpendicular to annular conductive body（11）Direction be provided with insulated column（14）.
6. a kind of blowout unit for switchgear according to claim 1, which is characterized in that the insulated column（14）'s
Cross-sectional area is no more than 1/10th of the cross-sectional area of the annular conductive body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491925.9A CN108666921A (en) | 2018-05-22 | 2018-05-22 | A kind of blowout unit for switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810491925.9A CN108666921A (en) | 2018-05-22 | 2018-05-22 | A kind of blowout unit for switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108666921A true CN108666921A (en) | 2018-10-16 |
Family
ID=63777479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810491925.9A Pending CN108666921A (en) | 2018-05-22 | 2018-05-22 | A kind of blowout unit for switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108666921A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101454A (en) * | 1993-09-17 | 1995-04-12 | 刘天保 | Electromagnetic arc blowout switch |
| CN1299144A (en) * | 1999-12-06 | 2001-06-13 | Abbt&D技术有限公司 | Mixed circuit switch |
| CN1393900A (en) * | 2001-06-25 | 2003-01-29 | 阿尔斯托姆公司 | Apparatus with combined vacuum and gas interrupting high-voltage circuit beaker |
| CN203456405U (en) * | 2013-09-16 | 2014-02-26 | 合肥凯高电气设备有限公司 | Circuit breaker arc extinguishing device with overvoltage protection function |
-
2018
- 2018-05-22 CN CN201810491925.9A patent/CN108666921A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1101454A (en) * | 1993-09-17 | 1995-04-12 | 刘天保 | Electromagnetic arc blowout switch |
| CN1299144A (en) * | 1999-12-06 | 2001-06-13 | Abbt&D技术有限公司 | Mixed circuit switch |
| CN1393900A (en) * | 2001-06-25 | 2003-01-29 | 阿尔斯托姆公司 | Apparatus with combined vacuum and gas interrupting high-voltage circuit beaker |
| CN203456405U (en) * | 2013-09-16 | 2014-02-26 | 合肥凯高电气设备有限公司 | Circuit breaker arc extinguishing device with overvoltage protection function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181016 |
|
| RJ01 | Rejection of invention patent application after publication |