CN202076055U - Plus or minus 800kV UHVDC line composite insulator tension string - Google Patents
Plus or minus 800kV UHVDC line composite insulator tension string Download PDFInfo
- Publication number
- CN202076055U CN202076055U CN2011200556279U CN201120055627U CN202076055U CN 202076055 U CN202076055 U CN 202076055U CN 2011200556279 U CN2011200556279 U CN 2011200556279U CN 201120055627 U CN201120055627 U CN 201120055627U CN 202076055 U CN202076055 U CN 202076055U
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- insulator
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- gold utensil
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- high voltage
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Abstract
The utility model discloses a plus or minus 800kV UHVDC line composite insulator tension string, comprising a yoke plate assembly, two strings of insulators and two tower head connecting fittings. One end of the yoke plate assembly is connected with the two tower head connecting fittings via the two strings of insulators separately, and the other end is connected with a lead fitting, and the two strings of insulators both are composite insulators of which the withstand voltage level are plus or minus 800kV. The tension string of the utility model employs the composite insulators, the length of the tension string is reduced by about 4.5 m compared with employing a disk-shaped insulator, so that the length of a jumper can be reduced by about 9 m. Moreover, a V-type rigid jumper string employed by the conventional technology can be changed into a V-type jumper string flexible jumper mode, so that the cost of each base of strain tower can be saved about 30 thousand RMB. In addition, the cost of the composite insulator itself is cheap, just being one-third of the cost of the disk-shaped insulator of the same withstand voltage level and same tensile resistance grade.
Description
Technical field
The utility model relates to a kind of lead with suspension arrangement or equipment, and is especially a kind of ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string.
Background technology
Construction ± 800kV extra-high voltage direct-current transmission engineering can improve transmission capacity, reduce transmission line and return number, save transmission of electricity corridor resource, is the needs of building a conservation-minded society, realize sustainable development.
In existing ± 800kV extra-high voltage direct-current circuit, the strain insulator string of strain insulator shaft tower generally adopts glass or porcelain insulator, needs more disc insulator, and the length of strain insulator-string is longer, invests bigger.The middle dirty district that is lower than 1000m with height above sea level is an example, whenever need adopt 65 disc insulators (creep distance 620mm, height 240mm), and the length of strain insulator-string reaches 18.905m.And, because the length of strain insulator-string is longer, need reduce wire jumper sag and windage yaw deviant thereof, so the wire jumper string need adopt V-type cage rigid jumper string for shortening strain tower tower head size, invest bigger.
Summary of the invention
The purpose of this utility model is to overcome the problems referred to above that prior art exists, and provides that a kind of length is short, cost is low ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string.
A kind of ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string that the utility model provides, it comprises that steering stem comp, two insulator strings, two tower heads connect gold utensil and lead connection gold utensil, one end of steering stem comp is connected gold utensil through two insulator strings respectively and connects with two tower heads, the other end of this steering stem comp is connected with the lead gold utensil, and described two insulator strings are the composite insulator of withstand voltage level for ± 800kV.
Preferably, the length of described insulator is 10200～12000mm.
Preferably, the creepage distance 〉=39750mm of described insulator.
Preferably, described steering stem comp comprises two yoke plates and two two change six yoke plates, and an end of this two yoke plate is connected with these two two change six yoke plates, and the other end is connected with described two insulator strings, and two two become six yoke plates and are connected the gold utensil connection with described lead.
Preferably, described tower head connects gold utensil and comprises hanging point gold utensil, U type link, the first adjustment plate, parallel link plate, towing plate and ball-eye, wherein, ball-eye is connected with described insulator, and U type link, first is adjusted plate, parallel link plate and towing plate and is connected between ball-eye and the hanging point gold utensil.
Preferably, also comprise two grading rings that are connected on described two yoke plates.
Preferably, also comprise two shading rings that are connected to described two two change six yoke plates.
Compared with prior art, the utlity model has following advantage:
(1) strain insulator-string of the present utility model adopts composite insulator, and strain insulator-string length is compared and adopted disc insulator to reduce about 4.5m, and the length of wire jumper can reduce about 9m thus; And, can be V-type wire jumper string flexible jumper mode with the V-type rigid jumper falsification of prior art, every basic strain tower can be saved about 30,000 yuan;
(2) strain insulator-string of the present utility model adopts composite insulator, and every insulator string can be saved nearly 40,000 yuan than dish-type insulator, on every basic strain tower only the insulator Master Cost just can save 160,000 yuan;
(3) strain insulator-string of the present utility model, its weight can reduce tower material load, along with the increase of height above sea level less than 25% (containing gold utensil) of dish-type insulator strain insulator-string weight, and the increase of the filthy order of severity, composite insulator is in light weight, advantages of cheap price can be more remarkable.
This shows that strain insulator-string of the present utility model has bigger economic benefit, be convenient to promote the use of.
Description of drawings
Fig. 1 is the front view of the strain insulator-string of the utility model embodiment;
Fig. 2 is the vertical view of Fig. 1.
Description of reference numerals: 1-the one U type link, 2-first adjusts plate, the parallel link plate of 3-, the 4-towing plate, the 5-ball-eye, 6-hanging point gold utensil, the 7-grading ring, the 8-socket-clevis eye, 9-two yoke plates, the 10-shading ring, 11-two becomes six yoke plates, the 12-first right angle link plate, 13-second adjusts plate, 14-the 2nd U type link, 15-first prolongs pull bar, 16-second prolongs pull bar, the 17-jumper wire spacing rod, the 18-link plate, 19-first strain clamp, 20-second strain clamp, 21-the 3rd right angle link plate, the 22-insulator, 23-the 3rd strain clamp.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated.
One of them embodiment of strain insulator-string of the present utility model as shown in Figure 1, 2, ± 800kV extra-high voltage direct-current circuit composite insulator 22 strain insulator-strings mainly connect gold utensil and lead by steering stem comp, two insulator strings 22, two tower heads and connect gold utensil and form, wherein, steering stem comp is made up of two yoke plates 9 and two two change six yoke plates 11, one end of this two yoke plate 9 is connected with these two two change six yoke plates 11, the other end is connected through the end of socket-clevis eye 8 with two insulator strings 22, and the other end of two insulator strings 22 is connected gold utensil respectively and connects with two tower heads.In the present embodiment, two insulator strings 22 are the composite insulator of withstand voltage level for ± 800kV.Preferably, the length of insulator 22 is 10200～10600mm, creepage distance 〉=39750mm.
Two grading rings 7 are installed on two yoke plates 9, are used for insulator 22 is played all pressure effects.Become six yoke plates 11 at two two a shading ring 10 respectively is installed, gold utensil is played shielding action, guarantee whole string gold utensil corona not under rated voltage.
Tower head connects gold utensil and is adjusted plate 2, parallel link plate 3, towing plate 4 and ball-eye 5 and formed by hanging point gold utensil 6, a U type link 1, first, wherein, ball-eye 5 is connected with insulator 22, hanging point gold utensil 6 is connected with tower head, and U type link, first is adjusted plate 2, parallel link plate 3 and towing plate 4 and is connected between ball-eye 5 and the hanging point gold utensil 6.
Lead connects gold utensil three kinds, be respectively that first lead connects gold utensil, second lead connects gold utensil and is connected gold utensil with privates, first lead connects gold utensil | two groups of D, A, each connects a lead, and this first lead connects gold utensil and is made up of the first right angle link plate 12, the second adjustment plate 13, the 2nd U type link 14 and second strain clamp 20.It is two groups of E, B| that second lead connects gold utensil, and this second lead connects gold utensil and is made up of the first prolongation pull bar 15, the first right angle link plate 12 and first strain clamp 19.It is two groups of F, C| that privates connects gold utensil, and this privates connects gold utensil and prolonged pull bar 16, the 2nd U type link 14 and the 3rd strain clamp 23 and formed by link plate 18, the 3rd right angle link plate 21, second.On lead connection gold utensil, be provided with jumper wire spacing rod 17.
Only be specific embodiment of the utility model below, do not limit protection range of the present utility model with this; Any replacement and the improvement done on the basis of not violating the utility model design all belong to protection range of the present utility model.
Claims (7)
1. one kind ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string, it comprises that steering stem comp, two insulator strings, two tower heads connect gold utensil and lead connection gold utensil, one end of steering stem comp is connected gold utensil through two insulator strings respectively and connects with two tower heads, the other end of this steering stem comp is connected with the lead gold utensil, it is characterized in that: described two insulator strings are the composite insulator of withstand voltage level for ± 800kV.
2. according to claim 1 ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string, it is characterized in that: the length of described insulator is 10200～12000mm.
3. according to claim 1 ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string, it is characterized in that: the creepage distance 〉=39750mm of described insulator.
4. according to each described ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string of claim 1 to 3, it is characterized in that: described steering stem comp comprises two yoke plates and two two change six yoke plates, one end of this two yoke plate is connected with these two two change six yoke plates, the other end is connected with described two insulator strings, and two two become six yoke plates and are connected the gold utensil connection with described lead.
5. according to claim 4 ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string, it is characterized in that: described tower head connects gold utensil and comprises hanging point gold utensil, U type link, the first adjustment plate, parallel link plate, towing plate and ball-eye, wherein, ball-eye is connected with described insulator, and U type link, first is adjusted plate, parallel link plate and towing plate and is connected between ball-eye and the hanging point gold utensil.
6. according to claim 4 ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string, it is characterized in that: also comprise two grading rings that are connected on described two yoke plates.
7. according to claim 4 ± 800kV extra-high voltage direct-current circuit composite insulator strain insulator-string, it is characterized in that: also comprise being connected to described two two two shading rings that become on six yoke plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200556279U CN202076055U (en) | 2011-03-04 | 2011-03-04 | Plus or minus 800kV UHVDC line composite insulator tension string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200556279U CN202076055U (en) | 2011-03-04 | 2011-03-04 | Plus or minus 800kV UHVDC line composite insulator tension string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202076055U true CN202076055U (en) | 2011-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200556279U Expired - Fee Related CN202076055U (en) | 2011-03-04 | 2011-03-04 | Plus or minus 800kV UHVDC line composite insulator tension string |
Country Status (1)
| Country | Link |
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| CN (1) | CN202076055U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063559A (en) * | 2012-12-29 | 2013-04-24 | 南方电网科学研究院有限责任公司 | Accelerated electrocorrosion test device of direct-current porcelain insulator iron cap |
-
2011
- 2011-03-04 CN CN2011200556279U patent/CN202076055U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063559A (en) * | 2012-12-29 | 2013-04-24 | 南方电网科学研究院有限责任公司 | Accelerated electrocorrosion test device of direct-current porcelain insulator iron cap |
| CN103063559B (en) * | 2012-12-29 | 2015-08-26 | 南方电网科学研究院有限责任公司 | A kind of Direct-current porcelain insulator chapeau de fer accelerates electrolytic corrosion test device |
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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 ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Guangdong Electric Power Design Institute of CEEC Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute |
|
| C56 | Change in the name or address of the patentee |
Owner name: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC Free format text: FORMER NAME: CHINA ENERGY ENGINEERING GROUP GUANGDONG ELECTRIC POWER DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee after: Company limited of China Energy Engineering Group Guangdong Electric Power Design Institute Address before: 510663 Luogang District, Guangdong, Guangzhou Science City Fung Road, No. 1, No. Patentee before: Guangdong Electric Power Design Institute of CEEC |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111214 Termination date: 20180304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |