CN203589456U - Structure of 4km altitude 500kV power distribution device interval width without wave trapper - Google Patents
Structure of 4km altitude 500kV power distribution device interval width without wave trapper Download PDFInfo
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- CN203589456U CN203589456U CN201320798015.8U CN201320798015U CN203589456U CN 203589456 U CN203589456 U CN 203589456U CN 201320798015 U CN201320798015 U CN 201320798015U CN 203589456 U CN203589456 U CN 203589456U
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- 238000006073 displacement reaction Methods 0.000 claims description 5
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- 230000005540 biological transmission Effects 0.000 abstract description 2
- 238000013461 design Methods 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract 1
- 238000009413 insulation Methods 0.000 description 6
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- 230000005611 electricity Effects 0.000 description 3
- 238000009422 external insulation Methods 0.000 description 3
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Abstract
The utility model relates to the field of high altitude ultra-high voltage power transmission and transformation engineering, and especially relates to a structure of 4km altitude 500kV power distribution device interval width without a wave trapper. For problems in the prior art, the utility model provides the structure of the 4km altitude 500kV power distribution device interval width without the wave trapper. By setting the distance between an A phase voltage equalizing ring, a B phase voltage equalizing ring, a C phase voltage equalizing ring and a framework diagonal column, the structure of the 500kV power distribution device interval width without the wave trapper in the altitude from 3km to 4km is determined. According to the utility model, by setting the distance between the A phase voltage equalizing ring, the B phase voltage equalizing ring, the C phase voltage equalizing ring and the framework diagonal column, the design is completed. The structure provided by the utility model can be used to determine the 500kV interval width without the wave trapper in the altitude from 3km to 4km.
Description
Technical field
The utility model relates to high height above sea level ehv power transmission engineering field, especially relates to the not structure with trap 500kV cubicle width of a kind of 4km height above sea level.
Background technology
The interval width of 500kV power distribution equipment, is determine 500kV power distribution equipment layout and take up an area one of key factor, is to build the content that 500kV transformer station, switchyard, booster stations etc. need primary study.The each interval of 500kV power distribution equipment is furnished with A phase, B phase, C phase three-phase equipment and outlet cross-line, each interval width is comprised of apart from sum following 4 sizes: (1) A phase electrified body and framework distance, (2) A phase electrified body and B phase electrified body distance, (3) B phase electrified body and C phase electrified body distance, (4) C phase electrified body and framework distance.
At height above sea level, be no more than the area of 1000m, 500kV interval width adopts universal design value to get 26m～28m, in China's project of transmitting and converting electricity, has had very ripe application.As shown in Figure 1,1km height above sea level is not with trap 500kV cubicle width structure check plot, in China's project of transmitting and converting electricity, has had very ripe application.The rated withstand voltage level of its equipment outer insulation is as shown in table 1, and air gap is as shown in table 2:
The rated withstand voltage level of table 1 1km height above sea level 500kV equipment outer insulation
Table 2 1km height above sea level 500kV air gap value
But at height above sea level, exceed after 1km, due to air weaken after its insulation property reduce, need to revise external insulation level and the air gap of equipment, after height above sea level correction, corresponding interval width needs to strengthen.And for building in the transformer station of 3000m～4000m high altitude localities, often not relevant research and determining of the interval width of 500kV power distribution equipment both at home and abroad at present.
Utility model content
Technical problem to be solved in the utility model is: for the problem of above-mentioned existence, provide the not structure of the 500kV cubicle with trap of a kind of 4km height above sea level.By the distance between A phase grading ring, B phase grading ring, C phase grading ring, framework herringbone column is set, meet 3km to not determining of the 500kV cubicle structure with trap of 4km height above sea level.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of 4km height above sea level does not comprise with the structure of trap 500kV cubicle width: the each outgoing line interval of 500kV power distribution equipment is furnished with A phase grading ring, B phase grading ring, C phase grading ring, described A phase grading ring, B phase grading ring, C phase grading ring are corresponding to be respectively suspended on structure crossbeam by I type suspension insulator, A phase grading ring and left end framework herringbone column horizontal range are X, A phase grading ring and B phase grading ring horizontal range Y, B phase grading ring is Y with C phase grading ring horizontal range, C phase grading ring and right-hand member framework herringbone column distance X; Described A phase grading ring, C phase grading ring ground distance are A1 value, and A phase grading ring and left end framework herringbone column beeline are A1 value, and C phase grading ring and right-hand member framework herringbone column beeline are A1 value; A phase grading ring is A2 value with the alternate value of B phase grading ring, and B phase grading ring is A2 value with the alternate value of C phase grading ring, described A1+X windage yaw+framework herringbone column radius+δ <X; A2+2X windage yaw+δ <Y; Wherein δ is margin value.
Described δ scope 0.2m is to 1m.
Described X windage yaw scope is that 0.7m is to 1.2m.
Described A phase grading ring and framework herringbone column horizontal range X are 6.5m; (2) A phase grading ring is 9m with B phase grading ring horizontal range Y; (3) B phase grading ring is 9m with C phase grading ring horizontal range Y; (4) C phase grading ring and framework herringbone column horizontal range X are 6.5m, and interval width is 6.5+9+9+6.5=32m.
Described A phase grading ring, B phase grading ring, C phase grading ring are the grading rings of I type suspension insulator, and grading ring windage yaw horizontal displacement in designing wind speed 30m/s strong wind situation is 1.06m; A phase grading ring and framework herringbone column beeline A1=4.5, framework radius is 0.4, δ=0.2,4.5+1.06+0.4+0.2=6.16m<7m; In like manner A2=6.5 in B phase grading ring and A phase grading ring, δ=0.2,6.5+2*1.06+0.2=8.82m<9m.
From above-mentioned architectural feature of the present utility model, can find out, its advantage is:
1) according to A1+X windage yaw+framework herringbone column radius+δ <X; A2+2X windage yaw+δ <Y relation, carries out rationally, having directive significance to power distribution equipment frame.
2) compared with the 500kV interval width 26m～28m of existing 1000m height above sea level, the utility model is determined the not interval width with trap 500kV of high altitude localities of 4000m, through counting period width, get 31m, there is good economic and social benefit, the high height above sea level 500kV of follow-up 4000m project of transmitting and converting electricity is had to important reference and reference.
Accompanying drawing explanation
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is that in prior art, 1km height above sea level is not with trap 500kV cubicle structure check plot.
Fig. 2 is that 4km height above sea level of the present utility model is not with trap 500kV cubicle structure check plot.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
All parts in accompanying drawing 1,2 (framework herringbone column, truck transom, A phase grading ring, B phase grading ring, C phase grading ring) are all the wherein part parts of power distribution equipment.The size of the unit of mark not in figure, its unit is unified is mm.
Height above sea level exceedes after 1km, due to air weaken after its insulation property reduce, need to revise external insulation level and the air gap of equipment.In the high altitude localities of 4km, the external insulation level of the revised equipment of process and air gap and 500kV electric pressure are basically identical.The rated withstand voltage level of its equipment outer insulation is as shown in table 3, and air gap is as shown in table 4:
The rated withstand voltage level of the high height above sea level 500kV of table 3 4000m equipment outer insulation
The high height above sea level 500kV of table 4 4000m air gap value
Compared with the 500kV interval width 13m～14m of existing 1000m height above sea level, the utility model is determined the not interval width with trap 500kV of high altitude localities of 4000m, through counting period width, gets 31m, has good economic and social benefit.
Embodiment mono-: the each interval of 500kV power distribution equipment is furnished with A phase, B phase, C phase three-phase suspension string grading ring, and each interval width is comprised of apart from sum following 4 sizes: (1) A phase grading ring and framework distance, get 6.5m; (2) A phase grading ring and B phase grading ring distance, get 9m; (3) B phase grading ring and C phase grading ring distance, get 9m; (4) C phase grading ring and framework distance, get 6.5m.Interval width is 6.5+9+9+6.5=31m.
Suspension string grading ring profile size is about diameter 1.6m, high 1.2m, and suspension string grading ring need be considered to wave the non-same period in designing wind speed 30m/s strong wind situation.The windage yaw horizontal displacement in designing wind speed 30m/s strong wind situation of suspension string grading ring is 1.06m.
A phase, C phase suspension string grading ring and framework are apart from verification:
4.5 (A1 value)+1.06 (windage yaw displacement)+0.4 (framework radius)=5.96m ﹤ 6.5m, consider to meet the demands after certain nargin.
A phase suspension string grading ring and B phase suspension string are apart from verification:
6.5 (A2 value)+2 × 1.06 (windage yaw displacement)=8.62m ﹤ 9m, consider to meet the demands after certain nargin.
Disclosed all features in this specification, except mutually exclusive feature, all can combine by any way.
Disclosed arbitrary feature in this specification (comprising any accessory claim, summary and accompanying drawing), unless narration especially all can be replaced by other equivalences or the alternative features with similar object.That is,, unless narration especially, each feature is an example in a series of equivalences or similar characteristics.
Claims (5)
1. the not structure with trap 500kV cubicle width of a 4km height above sea level, it is characterized in that comprising: the each outgoing line interval of 500kV power distribution equipment is furnished with A phase grading ring, B phase grading ring, C phase grading ring, described A phase grading ring, B phase grading ring, C phase grading ring are corresponding to be respectively suspended on structure crossbeam by I type suspension insulator, A phase grading ring and left end framework herringbone column horizontal range are X, A phase grading ring and B phase grading ring horizontal range Y, B phase grading ring is Y with C phase grading ring horizontal range, C phase grading ring and right-hand member framework herringbone column distance X; Described A phase grading ring, C phase grading ring ground distance are A1 value, and A phase grading ring and left end framework herringbone column beeline are A1 value, and C phase grading ring and right-hand member framework herringbone column beeline are A1 value; A phase grading ring is A2 value with the alternate value of B phase grading ring, and B phase grading ring is A2 value with the alternate value of C phase grading ring, described A1+X windage yaw+framework herringbone column radius+δ <X; A2+2 X windage yaw+δ <Y; Wherein δ is margin value.
2. the not structure with trap 500kV cubicle width of 4km height above sea level according to claim 1, is characterized in that described δ scope 0.2m is to 1m.
3. the not structure with trap 500kV cubicle width of 4km height above sea level according to claim 1, is characterized in that described X windage yaw scope is that 0.7m is to 1.2m.
4. according to the not structure with trap 500kV cubicle width of the 4km height above sea level one of claims 1 to 3 Suo Shu, it is characterized in that described A phase grading ring and framework herringbone column horizontal range X are 6.5m; A phase grading ring is 9m with B phase grading ring horizontal range Y; B phase grading ring is 9m with C phase grading ring horizontal range Y; C phase grading ring and framework herringbone column horizontal range X are 6.5m, and interval width is 6.5+9+9+6.5=31m.
5. the not structure with trap 500kV cubicle width of 4km height above sea level according to claim 4, it is characterized in that described A phase grading ring, B phase grading ring, C phase grading ring are the grading rings of I type suspension insulator, grading ring windage yaw horizontal displacement in designing wind speed 30m/s strong wind situation is 1.06m; A phase grading ring and framework herringbone column beeline A1=4.5, framework radius is 0.4, δ=0.2,4.5+1.06+0.4+0.2=6.16m<7m; In like manner A2=6.5 in B phase grading ring and A phase grading ring, δ=0.2,6.5+2*1.06+0.2=8.82m<9m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798015.8U CN203589456U (en) | 2013-12-05 | 2013-12-05 | Structure of 4km altitude 500kV power distribution device interval width without wave trapper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798015.8U CN203589456U (en) | 2013-12-05 | 2013-12-05 | Structure of 4km altitude 500kV power distribution device interval width without wave trapper |
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| Publication Number | Publication Date |
|---|---|
| CN203589456U true CN203589456U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320798015.8U Expired - Lifetime CN203589456U (en) | 2013-12-05 | 2013-12-05 | Structure of 4km altitude 500kV power distribution device interval width without wave trapper |
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| CN (1) | CN203589456U (en) |
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2013
- 2013-12-05 CN CN201320798015.8U patent/CN203589456U/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: CHINA POWER ENGINEERING CONSULTING GROUP SOUTHWEST Free format text: FORMER NAME: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING GROUP CORPORATION |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee after: Southwest Electric Power Design Institute CO., Ltd. of China Power Engineering Consulting Group Address before: 610021 Dongfeng Road, Chengdu, Sichuan, No. 18, No. Patentee before: SOUTHWEST ELECTRIC POWER DESIGN INSTITUTE OF CHINA POWER ENGINEERING CONSULTING Group Corp. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |