CN203589457U - Structure of 4km altitude 220kV power distribution device interval width without wave trapper - Google Patents
Structure of 4km altitude 220kV power distribution device interval width without wave trapper Download PDFInfo
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- CN203589457U CN203589457U CN201320798084.9U CN201320798084U CN203589457U CN 203589457 U CN203589457 U CN 203589457U CN 201320798084 U CN201320798084 U CN 201320798084U CN 203589457 U CN203589457 U CN 203589457U
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- 238000006073 displacement reaction Methods 0.000 claims description 5
- 239000012212 insulator Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 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 5
- 230000008901 benefit Effects 0.000 description 4
- 230000005611 electricity Effects 0.000 description 4
- 238000009422 external insulation Methods 0.000 description 2
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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 220kV 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 220kV 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 220kV 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 220kV 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 a kind of 4km height above sea level not with the structure of trap 220kV cubicle width.
Background technology
The interval width of 220kV power distribution equipment, is determine 220kV power distribution equipment layout and take up an area one of key factor, is to build the content that 220kV transformer station, switchyard, booster stations etc. need primary study.Each interval of 220kV 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, 220kV interval width adopts universal design value to get 13m, 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 220kV 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 11km height above sea level 220kV equipment outer insulation
Table 21km height above sea level 220kV air gap value
But after height above sea level surpasses 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 the transformer station building in 3000m～4000m high altitude localities, the interval width of 220kV power distribution equipment does not often have relevant research and determines 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 a kind of 4km height above sea level not with the structure of the 220kV cubicle of trap.By the distance between A phase grading ring, B phase grading ring, C phase grading ring, framework herringbone column is set, meet 3km to 4km height above sea level determining with the 220kV cubicle structure of trap not.
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 220kV cubicle width: each outgoing line interval of 220kV 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 0.2m is to 0.55m.
Described A phase grading ring and framework herringbone column horizontal range X are 3.5m; A phase grading ring is 4m with B phase grading ring horizontal range Y; B phase grading ring is 4m with C phase grading ring horizontal range Y; C phase grading ring and framework herringbone column horizontal range X are 3.5m, and interval width is 3.5+4+4+3.5=15m.
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 0.44m; A phase grading ring and framework herringbone column beeline A1=2.2, framework radius is 0.4, δ=0.2,2.2+0.44+0.4+0.2=3.24m<3.5m; A2=2.5 in B phase grading ring and A phase grading ring in like manner, δ=0.2,2.5+2*0.44+0.2=3.58m<4m.
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) compare with the 220kV interval width 13m of existing 1000m height above sea level, the high altitude localities that the utility model is determined 4000m is not with the interval width of trap 220kV, through counting period width, get 15m, there is good economic and social benefit, the high height above sea level 220kV 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 220kV cubicle structure check plot.
Fig. 2 is that 4km height above sea level of the present utility model is not with trap 220kV 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.
In the high altitude localities of 4km, the external insulation level of the revised equipment of process and air gap and 220kV 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 220kV of table 34000m equipment outer insulation
The high height above sea level 220kV of table 44000m air gap value
Compare with the 220kV interval width 13m of existing 1000m height above sea level, the high altitude localities that the utility model is determined 4000m is not with the interval width of trap 220kV, through counting period width, get 15m, there is good economic and social benefit, the high height above sea level 220kV of follow-up 4000m project of transmitting and converting electricity is had to important reference and reference.
Embodiment mono-: each interval of 220kV power distribution equipment is furnished with A phase, B phase, C phase I type suspension insulator grading ring, and each interval width is comprised of apart from sum following 4 sizes: (1) A phase grading ring and framework distance, get 3.5m; (2) A phase grading ring and B phase grading ring distance, get 4m; (3) B phase grading ring and C phase grading ring distance, get 4m; (4) C phase grading ring and framework distance, get 3.5m.Interval width is 3.5+4+4+3.5=15m.
Grading ring profile size is about diameter 1m, high 0.8m, and grading ring need be considered to wave the non-same period in designing wind speed 30m/s strong wind situation.Grading ring windage yaw horizontal displacement in designing wind speed 30m/s strong wind situation is 0.44m.
A phase, C phase grading ring and framework are apart from verification:
2.2 (A1 value)+0.44 (windage yaw displacement)+0.4 (framework radius)=3.04m ﹤ 3.5m, consider to meet the demands after certain nargin.
A phase grading ring and B phase grading ring are apart from verification:
2.5 (A2 value)+2 * 0.44 (windage yaw displacement)=3.38m ﹤ 4m, 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. a 4km height above sea level is not with the structure of trap 220kV cubicle width, it is characterized in that comprising: each outgoing line interval of 220kV 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. 4km height above sea level according to claim 1, not with the structure of trap 220kV cubicle width, is characterized in that described δ scope 0.2m is to 1m.
3. 4km height above sea level according to claim 1, not with the structure of trap 220kV cubicle width, is characterized in that described X windage yaw scope is that 0.2m is to 0.55m.
According to the 4km height above sea level one of claims 1 to 3 Suo Shu not with the structure of trap 220kV cubicle width, it is characterized in that described A phase grading ring and framework herringbone column horizontal range X are 3.5m; A phase grading ring is 4m with B phase grading ring horizontal range Y; B phase grading ring is 4m with C phase grading ring horizontal range Y; C phase grading ring and framework herringbone column horizontal range X are 3.5m, and interval width is 3.5+4+4+3.5=15m.
5. 4km height above sea level according to claim 4 is not with the structure of trap 220kV cubicle width, it is characterized in that described A phase grading ring, B phase grading ring, C phase grading ring are I type suspension insulator grading rings, grading ring windage yaw horizontal displacement in designing wind speed 30m/s strong wind situation is 0.44m; A phase grading ring and framework herringbone column beeline A1=2.2, framework radius is 0.4, δ=0.2,2.2+0.44+0.4+0.2=3.24m<3.5m; A2=2.5 in B phase grading ring and A phase grading ring in like manner, δ=0.2,2.5+2*0.44+0.2=3.58m<4m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798084.9U CN203589457U (en) | 2013-12-05 | 2013-12-05 | Structure of 4km altitude 220kV power distribution device interval width without wave trapper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320798084.9U CN203589457U (en) | 2013-12-05 | 2013-12-05 | Structure of 4km altitude 220kV power distribution device interval width without wave trapper |
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| Publication Number | Publication Date |
|---|---|
| CN203589457U true CN203589457U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320798084.9U Expired - Lifetime CN203589457U (en) | 2013-12-05 | 2013-12-05 | Structure of 4km altitude 220kV power distribution device interval width without wave trapper |
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| Country | Link |
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| CN (1) | CN203589457U (en) |
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2013
- 2013-12-05 CN CN201320798084.9U patent/CN203589457U/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 |