CN201466555U - Contact box for air-insulated metal-enclosed switchgear - Google Patents
Contact box for air-insulated metal-enclosed switchgear Download PDFInfo
- Publication number
- CN201466555U CN201466555U CN2009200342253U CN200920034225U CN201466555U CN 201466555 U CN201466555 U CN 201466555U CN 2009200342253 U CN2009200342253 U CN 2009200342253U CN 200920034225 U CN200920034225 U CN 200920034225U CN 201466555 U CN201466555 U CN 201466555U
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- CN
- China
- Prior art keywords
- box body
- inserts
- enclosed switchgear
- air
- contact box
- 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 - Lifetime
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Abstract
The utility model relates to the field of air-insulated metal-enclosed switchgear manufacturing and design, and discloses a contact box for air-insulated metal-enclosed switchgear, which comprises a box body, wherein large and small inserts are arranged at the bottom of the box body. The contact box is characterized in that a shielding barrel electronically connected with the large and small inserts is embedded in the inner wall of the box body, and the box body, the shielding barrel, and the large and small inserts are cast into a whole by epoxy resin.
Description
Technical field
The utility model relates to manufacturing of air insulation metal enclosed switchgear and design field, relates in particular to a kind of air insulation metal enclosed switchgear contact box.
Background technology
In high voltage switchgear, the reliability of insulation be the most general also be one of topmost performance requirement.The structural design of switch cubicle is the emphasis of air insulation metal enclosed switchgear always, and along with the progressively raising that the product miniaturization requires, the insulating part designing requirement is harsh more.The composite insulation structure that the contact box of present switchgear adopts air insulation and solid insulation to use simultaneously more, still, little, the relative insulating requirements of switchgear volume is higher, and this makes the reliability of the safe operation steady in a long-term of switchgear become problem.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of air insulation metal enclosed switchgear contact box, the local corona that produces owing to small air gap between conductor and the contact box box body be can solve, the insulation property of air insulation metal enclosed switchgear and the reliability of long-time running improved.
In order to solve the problems of the technologies described above, the utility model is achieved by the following technical solutions.
A kind of air insulation metal enclosed switchgear contact box comprises box body, and the box body bottom is provided with large and small inserts, it is characterized in that inboard wall of cartridge is embedded with the shielding bucket that is electrically connected with large and small inserts.
Further characteristics of the present utility model are: it is one that described box body, shielding bucket, big inserts, little inserts adopt poured with epoxy resin.
Because the utility model is embedded with the shielding bucket that is electrically connected with large and small inserts at the inboard wall of cartridge of contact box, shielding bucket and large and small inserts are all the equipotential body, improved the Potential distribution state in the contact box, balanced Electric Field Distribution in the contact box, prevented that traditional contact box from owing to small air gap between conductor and the contact box produces the possibility of local corona, having improved the insulation property of air insulation metal enclosed switchgear and the reliability of long-time running.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
Fig. 1 leads with partly cuing open of contact box for a kind of 24KV air insulation metal enclosed switchgear of the present utility model and looks schematic diagram;
Fig. 2 is the A-A cross-sectional schematic of Fig. 1;
Fig. 3 is the structural representation of shielding bucket among Fig. 2: (a) front view, (b) be left view, and (c) be vertical view;
Among the figure: 1 is box body; 2 are the shielding bucket; 3 is big inserts; 4 is little inserts.
Embodiment
With reference to Fig. 1, Fig. 2, be a kind of 24KV air insulation metal enclosed switchgear contact box, box body 1 outer wall has conventional cluster parachute, and box body 1 bottom is provided with large and small inserts 3,4, and box body 1 inwall is embedded with the shielding bucket 2. that is electrically connected with large and small inserts 3,4
With reference to Fig. 3, shielding bucket 2 is a round barrel shape, and the bucket end offers the large and small breach that is used to run through large and small inserts 3,4 heads, and the bucket end is overlapped on the large and small inserts 3,4, the fairlead leaving certain gaps uncovered by the economic plan of shielding bucket 2 corresponding contact boxs, convenient lead-in wire.Shielding bucket 2, big inserts 3, little inserts 4 help improving the Electric Field Distribution of box body 1 inner chamber near forming the equipotential body in the inwall of box body 1.
It is one that box body 1, shielding bucket 2, big inserts 3, little inserts 4 adopt poured with epoxy resin, has simple in structurely, is easy to processing, low cost and other advantages.Shielding bucket 2 is a stainless steel, perhaps other metal material, and perhaps dielectric constant is less than the nonmetallic materials of box body (epoxy resin) material.
Claims (2)
1. an air insulation metal enclosed switchgear contact box comprises box body, and the box body bottom is provided with large and small inserts, it is characterized in that inboard wall of cartridge is embedded with the shielding bucket that is electrically connected with large and small inserts.
2. a kind of air insulation metal enclosed switchgear contact box according to claim 1 is characterized in that, it is one that described box body, shielding bucket, big inserts, little inserts adopt poured with epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200342253U CN201466555U (en) | 2009-08-14 | 2009-08-14 | Contact box for air-insulated metal-enclosed switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200342253U CN201466555U (en) | 2009-08-14 | 2009-08-14 | Contact box for air-insulated metal-enclosed switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201466555U true CN201466555U (en) | 2010-05-12 |
Family
ID=42393902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200342253U Expired - Lifetime CN201466555U (en) | 2009-08-14 | 2009-08-14 | Contact box for air-insulated metal-enclosed switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201466555U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465213A (en) * | 2014-12-03 | 2015-03-25 | 中国西电电气股份有限公司 | Gas-insulated switchgear and pressure-operated load switch arc extinguish chamber thereof |
| CN107599572A (en) * | 2017-09-28 | 2018-01-19 | 句容市大唐电气有限公司 | A kind of strong contact box of good rigidity of resistance to compression effect |
-
2009
- 2009-08-14 CN CN2009200342253U patent/CN201466555U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104465213A (en) * | 2014-12-03 | 2015-03-25 | 中国西电电气股份有限公司 | Gas-insulated switchgear and pressure-operated load switch arc extinguish chamber thereof |
| CN107599572A (en) * | 2017-09-28 | 2018-01-19 | 句容市大唐电气有限公司 | A kind of strong contact box of good rigidity of resistance to compression effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xi'an Xikai Medium-Low Pressure Switch Co., Ltd. Assignor: China XD Electronic Corporation Contract record no.: 2012610000086 Denomination of utility model: Contact box for air-insulated metal-enclosed switchgear Granted publication date: 20100512 License type: Exclusive License Record date: 20120531 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |