CN101630816B - Shielding contact box of high-voltage switch cabinet - Google Patents
Shielding contact box of high-voltage switch cabinet Download PDFInfo
- Publication number
- CN101630816B CN101630816B CN2009101006201A CN200910100620A CN101630816B CN 101630816 B CN101630816 B CN 101630816B CN 2009101006201 A CN2009101006201 A CN 2009101006201A CN 200910100620 A CN200910100620 A CN 200910100620A CN 101630816 B CN101630816 B CN 101630816B
- Authority
- CN
- China
- Prior art keywords
- box body
- box
- nonmagnetic metal
- switch cabinet
- inserts
- 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.)
- Active
Links
Images
Abstract
The invention relates to a shielding contact box of a high-voltage switch cabinet, comprising a box body and a support plate, wherein the box body is formed in one step from mixed epoxy materials and in a cylinder shape, one end of the box body is provided with an opening, and the other end of the box body is closed; the outer wall of the box body and the support plate are both provided with umbrella skirts; and the inner cavity wall of the box body is provided with a nonmagnetic metal shielding layer, a static contact installing insert and a bus fixing insert which form an integral piece. The shielding contact box uses the nonmagnetic metal shielding layer to replace a net ring and especially embeds the nonmagnetic metal shielding layer into the bottom wall of the inner cavity of the box body so that the nonmagnetic metal shielding layer directly forms the integral piece with the static contact installing insert and the bus fixing insert, thereby not only uniformizing an electric field, reducing the partial insulator discharge, but also facilitating the elimination of corona by changing electric charge distribution direction and expanding phase spacing, so that the insulator can move in a better environment, thereby ensuring the safe operation of electric power.
Description
[technical field]
The invention belongs to a kind of shielding contact box of high-voltage switch cabinet, especially relate to a kind of contact box that on inwall, is provided with the gauze screen circle.
[background technology]
Contact box is arranged in the high-tension switch cabinet, is the excessive element that connects circuit breaker and fixed contact.Its structure comprises box body and supporting bracket, and box body is tubular, end opening other end sealing.The box body outer wall of tubular is provided with full skirt, and the intracavity bottom of sealing is provided with fixed contact inserts is installed, and to this fixed contact inserts is installed, and has a line outlet radially on the box wall, forms major loop through branch's busbar.Supporting bracket and box body are that the outer surface of supporting bracket also is provided with corresponding full skirt by the one-time formed whole tubular insulator of epoxy compound.
" a kind of novel contact box and production technology thereof that is provided with the net circle " of one Chinese patent application numbers 200710156078.2 be exactly the application a kind of contact box that will relate to.This contact box is set up a net circle (being the nonmagnetic metal screen) at inboard wall of cartridge, and the net circle is cylindrical netted, and the bottom connects two bonding jumpers; Through bonding jumper the net circle is linked to each other with inserts; The cylindrical wall of net circle is established an opening, and this opening is corresponding with line outlet, is used to admit busbar.Set up net circle, be intended to make the contact box internal electric field to be evenly distributed, to reduce insulator office and put, make the partial discharge quantity of contact box reduce to desired quantity, to prolong product useful life.But still there is following deficiency in the contact box of this structure: usually, six contact boxs are set in the high-tension switch cabinet, six contact box apportion two rows; Respectively one arrange up and down, problem is: three alternate faying surfaces of contact box that are set up in parallel can not seal fully, have the air gap; Be located on the internal ring wall of insulator and will net to enclose, only make to net to enclose with bonding jumper to link to each other with inserts, Electric Field Distribution is even although the net circle can make, reduction insulator office puts; But because the alternate air gap that exists; The insulator inwall has very high electric field strength again, and one is to have inevitable corona phenomenon to take place in practical application, and the 2nd, contact box is in work under this environment for a long time; Can cause its insulation property to descend rapidly, thereby have the potential safety hazard that is prone to puncture and causes electric power accident.
[summary of the invention]
For overcoming the problems referred to above that prior art exists; The present invention aims to provide the novel shielding contact box of high-voltage switch cabinet of a kind of structure; This contact box is owing to be difficult for producing corona phenomenon in the switch cubicle running; Thereby help guaranteeing the insulation property of contact box, avoid puncturing and eliminate the potential safety hazard of operation power.
The technical scheme that addresses the above problem is following: the structure of this shielding contact box of high-voltage switch cabinet comprises that box body is tubular by one-time formed box body of epoxy compound and supporting bracket, end opening other end sealing; All be provided with full skirt on the outer wall of box body and supporting bracket; Be provided with the nonmagnetic metal screen in the box body inner chamber, box body inner chamber diapire is provided with fixed contact inserts is installed, and nonmagnetic metal screen and fixed contact are installed inserts and be connected into integral body; To said fixed contact inserts is installed, is had a busbar line outlet radially on the box wall, it is characterized in that: said nonmagnetic metal screen is embedded in the box body inner chamber diapire, and the nonmagnetic metal screen is installed inserts formation single piece with fixed contact.
Aforesaid a kind of shielding contact box of high-voltage switch cabinet is characterized in that: also comprise fixedly inserts of busbar in the said single piece.
Aforesaid a kind of shielding contact box of high-voltage switch cabinet is characterized in that: said nonmagnetic metal screen is oven wire mesh blanket or metal lamella.
Aforesaid a kind of shielding contact box of high-voltage switch cabinet is characterized in that: said nonmagnetic metal screen and box body are epoxy pressure gel global formation spare.
Beneficial effect: compared with prior art; The application particularly is embedded in it in diapire of box body inner chamber with oven wire mesh blanket or the alternative net circle of metal lamella, makes the direct and fixed contact installation inserts formation single piece of whole oven wire mesh blanket or metal lamella; Not only can uniform electric field, reduce insulator office and put; And pass through to change CHARGE DISTRIBUTION direction, expansion spaced apart, help eliminating corona phenomenon, the insulation physical efficiency is better being moved in the environment, thereby guarantee operation power safety.Through surveying: the contact box electrical property after the improvement is more superior, has eliminated the gap discharge phenomenon, and partial discharge quantity is less than 3PC, well below national standard; Discharge inception voltage is brought up to more than the 60KV by original 40KV, satisfies safe operation voltage fully.
[description of drawings]
Fig. 1 is the broken section structural representation of one embodiment of the invention.
Among the figure: box body 1, full skirt 11, box body inner chamber diapire 12, supporting bracket 2, box body is inserts 3 fixedly, busbar line outlet 4, fixed contact is installed inserts 5, and busbar is inserts 6 fixedly, nonmagnetic metal screen 7, reinforcement 8.
[embodiment]
Referring to Fig. 1.Box body 1 becomes whole with supporting bracket 2 by the one-shot forming of epoxy pressure gel, all is provided with full skirt 11 on both outer walls, and the outer rim of adjacent contact box supporting bracket 2 forms faying surface.Box body 1 is tubular, open upper end, and the lower end is by 12 sealings of box body inner chamber diapire.Corresponding with box body inner chamber diapire 12, on the wall of box body 1, offer busbar line outlet 4 radially, be used to admit busbar.On box body inner chamber diapire 12, fixedly inserts 6 of fixed contact installation inserts 5 and busbar is set respectively, both screw axis are on the straight line, so that the secure alignment busbar.Nonmagnetic metal screen 7, promptly oven wire mesh blanket or metal lamella are installed fixedly inserts 6 of inserts 5 and busbar with fixed contact, cast in the box body inner chamber diapire 12.Nonmagnetic metal screen 7 is installed inserts 5 at fixed contact and fixedly is connected into single piece in the mutual Electricity Federation, bottom of inserts 6 with busbar, and nonmagnetic metal screen 7 can adopt nonmagnetic material to process.
Claims (4)
1. a shielding contact box of high-voltage switch cabinet comprises that box body (1) is tubular by one-time formed box body of epoxy compound (1) and supporting bracket (2), end opening other end sealing; All be provided with full skirt (11) on the outer wall of box body (1) and supporting bracket (2); Be provided with nonmagnetic metal screen (7) in box body (1) inner chamber, box body inner chamber diapire (12) is provided with fixed contact inserts (5) is installed, and nonmagnetic metal screen (7) is installed inserts (5) with fixed contact and is connected into integral body; To said fixed contact inserts (5) is installed; Have a busbar line outlet (4) radially on the box wall; It is characterized in that: said nonmagnetic metal screen (7) is embedded in the box body inner chamber diapire (12), and nonmagnetic metal screen (7) is installed inserts (5) with fixed contact and constituted single piece.
2. a kind of shielding contact box of high-voltage switch cabinet as claimed in claim 1 is characterized in that: also comprise fixedly inserts (6) of busbar in the said single piece.
3. a kind of shielding contact box of high-voltage switch cabinet as claimed in claim 1 is characterized in that: said nonmagnetic metal screen (7) is oven wire mesh blanket or metal lamella.
4. a kind of shielding contact box of high-voltage switch cabinet as claimed in claim 1 is characterized in that: said nonmagnetic metal screen (7) is an epoxy pressure gel global formation spare with box body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101006201A CN101630816B (en) | 2009-07-13 | 2009-07-13 | Shielding contact box of high-voltage switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101006201A CN101630816B (en) | 2009-07-13 | 2009-07-13 | Shielding contact box of high-voltage switch cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101630816A CN101630816A (en) | 2010-01-20 |
| CN101630816B true CN101630816B (en) | 2012-05-09 |
Family
ID=41575811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101006201A Active CN101630816B (en) | 2009-07-13 | 2009-07-13 | Shielding contact box of high-voltage switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101630816B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121948A (en) * | 2010-12-07 | 2011-07-13 | 国家电网公司 | System for measuring transient shell voltage of gas insulated switchgear |
| CN104283115A (en) * | 2014-09-26 | 2015-01-14 | 浙江省开化七一电力器材有限责任公司 | Three-phase contact case for high-voltage switch cabinet |
| CN107492826B (en) * | 2017-08-30 | 2018-10-09 | 扬中市扬子铝加工有限公司 | A kind of high-tension switch cabinet |
| CN108390260A (en) * | 2018-02-25 | 2018-08-10 | 浙江省开化七电力器材有限责任公司 | A kind of high-tension switch cabinet heat radiating type contact box |
| CN108288835A (en) * | 2018-02-28 | 2018-07-17 | 正泰电气股份有限公司 | Integral three-phase contact box |
| EP4024635A1 (en) * | 2020-12-29 | 2022-07-06 | Schneider Electric USA, Inc. | Switching device with reduced partial discharge and improved triple point characteristics |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142522Y (en) * | 2008-01-16 | 2008-10-29 | 余永松 | Contact box for high-tension switch cabinet |
| CN201178247Y (en) * | 2008-04-08 | 2009-01-07 | 杭州曙光电器有限公司 | Inner and outer high-voltage shielding contact box |
| CN201466491U (en) * | 2009-07-13 | 2010-05-12 | 余永松 | Contact box with shielding for high voltage switch cabinet |
-
2009
- 2009-07-13 CN CN2009101006201A patent/CN101630816B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201142522Y (en) * | 2008-01-16 | 2008-10-29 | 余永松 | Contact box for high-tension switch cabinet |
| CN201178247Y (en) * | 2008-04-08 | 2009-01-07 | 杭州曙光电器有限公司 | Inner and outer high-voltage shielding contact box |
| CN201466491U (en) * | 2009-07-13 | 2010-05-12 | 余永松 | Contact box with shielding for high voltage switch cabinet |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101630816A (en) | 2010-01-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101630816B (en) | Shielding contact box of high-voltage switch cabinet | |
| CN101446617B (en) | Test apparatus of DC gas insulated metal enclosed transmission line (GIL) | |
| CN201196675Y (en) | Experiment research apparatus used for DC gas insulation metal closed electric power line | |
| CN102360987B (en) | Tank type high-pressure vacuum circuit breaker | |
| CN106960759B (en) | Monopole insulating cylinder and the monopole arc-chutes and on-load switch for using the monopole insulating cylinder | |
| CN105536999A (en) | Electrical tar precipitator | |
| CN201498284U (en) | Ultra-high pressure GIS wire inlet and outlet composite insulating sleeve | |
| CN201466491U (en) | Contact box with shielding for high voltage switch cabinet | |
| CN203536135U (en) | Anti-thunder high-voltage post insulator | |
| CN202333561U (en) | Contact box used in high-voltage switch cabinet | |
| CN201682255U (en) | Internal cone type cable branch box | |
| CN102255268B (en) | Supporting structure of bus insulator | |
| CN202930861U (en) | Wall-through bushing for high voltage switch cabinet | |
| CN201142522Y (en) | Contact box for high-tension switch cabinet | |
| CN202712037U (en) | Tank type high voltage vacuum circuit breaker with three-phase common structure | |
| CN104022444A (en) | Rod-shaped suspended voltage limiter for overhead line | |
| CN104064962B (en) | Modularization high-pressure metal sealing switch equipment contact box | |
| CN201584663U (en) | Busbar insulating sleeve of 24KV switch cabinet | |
| CN204481381U (en) | A kind of single-phase three Room three position operation independence resin insulating cylinders | |
| CN202796282U (en) | Elliptoid bus insulated sleeve | |
| CN201374504Y (en) | Contact box for switch cabinet | |
| CN201178247Y (en) | Inner and outer high-voltage shielding contact box | |
| CN206225788U (en) | A kind of contact box device with function of shielding | |
| CN203631997U (en) | Three-phase insulating rod applied to transformer station and application of three-phase insulating rod | |
| CN203690714U (en) | Fixed assembly switch cabinet |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANGSHENG KAIHUA QIYI ELECTRICAL EQUIPMENT CO. Free format text: FORMER OWNER: YU YONGSONG Effective date: 20120810 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120810 Address after: 324302 No. 418 Parkson Road, Hua Bu Town, Kaihua County, Zhejiang Patentee after: Zhejiangsheng Kaihua Qiyi Electrical Equipment Co., Ltd. Address before: Parkson road 324302 Chinatown Kaihua County of Zhejiang Province Economic Development Zone No. 418 Zhejiang Kaihua 71 power equipment limited liability company Patentee before: Yu Yongsong |