CN203553838U - Large current bus structure for gas insulated switchgear - Google Patents
Large current bus structure for gas insulated switchgear Download PDFInfo
- Publication number
- CN203553838U CN203553838U CN201320710240.1U CN201320710240U CN203553838U CN 203553838 U CN203553838 U CN 203553838U CN 201320710240 U CN201320710240 U CN 201320710240U CN 203553838 U CN203553838 U CN 203553838U
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- China
- Prior art keywords
- external shell
- inner conductor
- gas
- insulating
- insulating basin
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 23
- 239000012212 insulator Substances 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 230000001133 acceleration Effects 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
Images
Abstract
A large current bus structure for a gas insulated switchgear includes an external shell, a gas isolating insulating basin and an inner conductor. Two ends of the external shell are connected with the gas isolating insulating basin; the inner conductor penetrates axially through the external shell, and two ends of the inner conductor are connected with the gas isolating insulating basin; and two end parts of the external shell form a tapered shape, wherein the outside of the external shell is larger than the inside of the external shell. After adopting the above measures, the acceleration of the heat dissipation and the reduction of heating are realized; the resistance of the main conductive circuit is reduced; and the load is increased.
Description
Technical field
The utility model relates to a kind of heavy current busbar structure, relates in particular to a kind of gas-insulating and fully-enclosed combined electrical apparatus heavy current busbar structure.
Background technology
At present, along with the develop rapidly of national economy, under the continuous progressive support of high voltage technique, for the also raising day by day of requirement of power transmission and transformation.Gas-insulating and fully-enclosed combined electrical apparatus is as the infrastructure device of power transmission and transformation, and its developing direction is large capacity, miniaturization, intellectuality.In the recent period national grid, south electric network, become increasingly conspicuous for the requirement of large capacity, miniaturization.The requirement of the gas-insulating and fully-enclosed combined electrical apparatus rated current of 126kV 3150A, the requirement of the gas-insulating and fully-enclosed combined electrical apparatus rated current of 252kV 5000A often occurs.The large current design of gas-insulating and fully-enclosed combined electrical apparatus mainly contains to be accelerated heat radiation and reduces by two kinds of consideration methods of heating.For accelerating heat radiation Main Means, have the cylindrical shell of increase, cross-sectional area of conductor to amass, but will cause the corresponding increase of its built-in electrical insulation part size, the overall dimension of gas-insulating and fully-enclosed combined electrical apparatus changes and becomes greatly, and material cost increases sharply, and deviates from the direction of miniaturization; For the method that reduces heating, be mainly in the situation that maintaining existing product physical dimension and not increasing, reduce conductor resistance, improve conductance, temperature rise requirement when conductor material meets large electric current.The enforcement of this kind of scheme is generally conductor material is changed to the material that conductance is higher, and this will increase the consumption of precious metal greatly, increases manufacturing cost, causes conductor mass penalty simultaneously, increases factory, on-the-spot installation difficulty.
When bus length is long, often by increasing trapping insulating basin, carry out transition connection, cause cost greatly to increase.
Summary of the invention
The defect existing with heavy current busbar for gas-insulating and fully-enclosed combined electrical apparatus in prior art, in order to use on the basis of original insulating element, capacity increasing, accelerates heat radiation and reduces heating, reach minimizing product specification simultaneously, reduce the object of product cost.
The utility model provides a kind of gas-insulating and fully-enclosed combined electrical apparatus heavy current busbar structure, comprise external shell, trapping insulating basin and inner conductor, external shell two ends are connected with trapping insulating basin, inner conductor axially runs through external shell and its two ends are connected with trapping insulating basin, and the both ends of described external shell are outer little interior large taper.
Described inner conductor, is comprised of multistage, and adjacent each section connects by connector and supported by pillar insulator.
The increase of external shell diameter also can suitably expand the diameter of inner conductor.
After adopting above-mentioned measure, can reach the object of accelerating heat radiation and reducing heating, also reduce the resistance of main conductive circuit simultaneously, load increases.By adopting connector bonding conductor, and use pillar insulator to support conductor, having substituted in original technology uses trapping insulating basin to carry out transition connection, can reduce the use amount of trapping insulating basin, in the utility model, trapping insulating basin and pillar insulator all can adopt original component, reduce product specification, greatly reduced product cost.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, a kind of gas-insulating and fully-enclosed combined electrical apparatus heavy current busbar structure, comprise external shell 2,3, trapping insulating basin 1,4 and inner conductor 5,7, external shell 2,3 two ends are connected with trapping insulating basin 1,4, inner conductor 5,7 axially runs through external shell and its two ends are connected with trapping insulating basin 1,4, and the both ends of external shell 2,3 are outer little interior large taper.Inner conductor 5,7 connects by connector 6 and is supported by pillar insulator 8.
When bus is switched on, electric current is by inner conductor 5,7 and connector 6, and with respect to common bus, the transition of conical shell can provide larger surface area, and conductor is more easily dispelled the heat; Along with the increase of external shell 2,3 diameters, the diameter of inner conductor is appropriateness increase thereupon also, thereby resistance is reduced, and reaches the effect that increases load, reduces heating.
The present embodiment is not done any pro forma restriction to shape of the present utility model, material, structure etc.; every foundation technical spirit of the present utility model, to any simple modification made for any of the above embodiments, equivalent variations and modification, all belongs to the protection range of technical solutions of the utility model.
Claims (2)
1. a gas-insulating and fully-enclosed combined electrical apparatus heavy current busbar structure, comprise external shell, trapping insulating basin and inner conductor, external shell two ends are connected with trapping insulating basin, inner conductor axially runs through external shell and its two ends are connected with trapping insulating basin, it is characterized in that: the both ends of described external shell are outer little interior large taper.
2. gas-insulating and fully-enclosed combined electrical apparatus heavy current busbar structure as claimed in claim 1, is characterized in that: described inner conductor, by multistage, formed, and adjacent each section connects by connector and supported by pillar insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710240.1U CN203553838U (en) | 2013-11-12 | 2013-11-12 | Large current bus structure for gas insulated switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320710240.1U CN203553838U (en) | 2013-11-12 | 2013-11-12 | Large current bus structure for gas insulated switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203553838U true CN203553838U (en) | 2014-04-16 |
Family
ID=50471907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320710240.1U Expired - Lifetime CN203553838U (en) | 2013-11-12 | 2013-11-12 | Large current bus structure for gas insulated switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203553838U (en) |
-
2013
- 2013-11-12 CN CN201320710240.1U patent/CN203553838U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR CO., LTD. Free format text: FORMER NAME: HENAN PINGGAO TOSHIBA HIGH VOLTAGE SWITCHGEAR CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 467013 No. 645, east section, Jianshe Road, Henan, Pingdingshan Patentee after: HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR Co.,Ltd. Address before: 467013 No. 645, east section, Jianshe Road, Henan, Pingdingshan Patentee before: HENAN PINGGAO TOSHIBA HIGH VOLTAGE SWITCHGEAR Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |