CN102361225A - +/- 1000KV and more than +/- 1000KV voltage levels direct current wall bushing installation method - Google Patents
+/- 1000KV and more than +/- 1000KV voltage levels direct current wall bushing installation method Download PDFInfo
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- CN102361225A CN102361225A CN2011102025527A CN201110202552A CN102361225A CN 102361225 A CN102361225 A CN 102361225A CN 2011102025527 A CN2011102025527 A CN 2011102025527A CN 201110202552 A CN201110202552 A CN 201110202552A CN 102361225 A CN102361225 A CN 102361225A
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- wall bushing
- direct current
- installation method
- wall
- voltage levels
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Abstract
The invention provides a +/- 1000KV and more than +/- 1000KV voltage levels direct current wall bushing installation method which is characterized in that: installing a wall bushing in a wall structure with a tilted valve hall to allow an included angle of the wall bushing and a horizontal plane within a range of 30 degrees to 45 degrees. A mechanical strength manufacture problem at a wall bushing installation position is solved.
Description
Technical field
The present invention relates to ± installation method of 1000kV and above electric pressure extra-high voltage direct-current transmission engineering mesohigh direct current wall bushing.
Background technology
Receive the promotion of economic development, Chinese direct current research and application all are in the forefront in the world, and research range is wide, the planning engineering is many, has development space and application prospect widely.Many ± 800kV extra-high voltage direct-current completes or builds at present, will send the condition more easily that provides outside for the western electric power of China.The NORTHWEST CHINA rich coal resources is an energy centre.In order the energy to be seen off load concentration area, east, 1000kV and above electric pressure DC power transmission line are the preferential schemes of selecting.
The main difficult point of 1000kV extra-high voltage direct-current system is mainly reflected on the key equipments such as converter transformer and wall bushing, and Equipment Design has been proposed new challenge with making.Manufacturing and designing not only of wall bushing will solve interior Insulation Problems, will consider also that simultaneously apparatus insulated level improves the other problems that is brought, like mechanical problem.According to preliminary wall bushing technical parameter, the electrical length of wall bushing will reach 12 meters.So long casing length will be challenged to the design of sleeve pipe, especially problems of mechanical strength.According to national Specification, tolerance load in the installation site, end of wall bushing is 5000N, also will consider the gravity of sleeve pipe itself simultaneously.± 800kV direct current wall bushing is shown in accompanying drawing 1, and electrical length is installed on the vertical body of wall near 10 meters, horizontal by 15 degree inclinations angle, adopts this device designed mechanical strength near the limit.If in the more same design of voltage levels employing, the mechanical strength of wall bushing can't meet the demands.Therefore, HVDC Wall Bushing becomes ± bottleneck that 1000kV and above electric pressure DC engineering are used.
Summary of the invention
Technical bottleneck problem to 1000kV and the existence of above electric pressure direct current wall bushing; We have proposed new installation method: wall bushing is installed on the wall body structure of valve Room inclination; Wall bushing and horizontal plane angle are in 30～45 degree scopes, and the valve Room wall body structure that wall bushing is installed is horizontal by 45～60 degree angles.
If sleeve pipe is taked arrangement shown in Figure 2, will alleviate the stressed load in end of sleeve pipe, thereby reduce the development difficulty of equipment, solve the key technical problem of 1000kV and above electric pressure direct current wall bushing.
Description of drawings
Fig. 1 is the photo of wall bushing in present ± 800kV extra-high voltage direct-current engineering, and wherein big sleeve pipe is a 800kV electric pressure direct current wall bushing.
Fig. 2 is the mount scheme sketch map that wall bushing and horizontal plane angle are 30～45 degree, the vertical installing wall body of sleeve pipe this moment, and body of wall and horizontal plane angle are 45～60 degree.
Claims (2)
- ± installation method of 1000kV and above electric pressure direct current wall bushing, it is characterized in that: wall bushing is installed on the wall body structure that the valve Room tilts, with horizontal plane angle in 30～45 degree scopes.
- 2. installation method as claimed in claim 1 is characterized in that: the valve Room wall body structure that wall bushing is installed is horizontal by 45～60 degree angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102025527A CN102361225A (en) | 2011-07-13 | 2011-07-13 | +/- 1000KV and more than +/- 1000KV voltage levels direct current wall bushing installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102025527A CN102361225A (en) | 2011-07-13 | 2011-07-13 | +/- 1000KV and more than +/- 1000KV voltage levels direct current wall bushing installation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102361225A true CN102361225A (en) | 2012-02-22 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102025527A Pending CN102361225A (en) | 2011-07-13 | 2011-07-13 | +/- 1000KV and more than +/- 1000KV voltage levels direct current wall bushing installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102361225A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024323A (en) * | 2015-08-14 | 2015-11-04 | 国家电网公司 | Arrangement structure of polar line wall bushing of extra-high-voltage direct-current engineering and design method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201345276Y (en) * | 2009-01-21 | 2009-11-11 | 山东泰开箱变有限公司 | Combined type transformer for separating box type wind power generation |
| CN101615765A (en) * | 2009-03-18 | 2009-12-30 | 国网直流工程建设有限公司 | A kind of novel high-pressure wall bushing earthing method and equipment |
| CN201444550U (en) * | 2009-07-03 | 2010-04-28 | 青岛特锐德电气股份有限公司 | Armored moving high-voltage switch cabinet |
-
2011
- 2011-07-13 CN CN2011102025527A patent/CN102361225A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201345276Y (en) * | 2009-01-21 | 2009-11-11 | 山东泰开箱变有限公司 | Combined type transformer for separating box type wind power generation |
| CN101615765A (en) * | 2009-03-18 | 2009-12-30 | 国网直流工程建设有限公司 | A kind of novel high-pressure wall bushing earthing method and equipment |
| CN201444550U (en) * | 2009-07-03 | 2010-04-28 | 青岛特锐德电气股份有限公司 | Armored moving high-voltage switch cabinet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105024323A (en) * | 2015-08-14 | 2015-11-04 | 国家电网公司 | Arrangement structure of polar line wall bushing of extra-high-voltage direct-current engineering and design method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120222 |