CN201017729Y - AC extra-high voltage large crossing insulator metal fittings string - Google Patents
AC extra-high voltage large crossing insulator metal fittings string Download PDFInfo
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- CN201017729Y CN201017729Y CN 200720103907 CN200720103907U CN201017729Y CN 201017729 Y CN201017729 Y CN 201017729Y CN 200720103907 CN200720103907 CN 200720103907 CN 200720103907 U CN200720103907 U CN 200720103907U CN 201017729 Y CN201017729 Y CN 201017729Y
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Abstract
The utility model relates to an AC ultra-high voltage long span insulator fitting string, which comprises a multi-fold insulator string and a grading ring connected on the multi-fold insulator string. A connecting plate is connected at the lower end of the multi-fold insulator string, a wire clip link plate is connected on the connecting plate, and a lead wire clip is connected on the wire clip link plate. The utility model is characterized in that the number of the lead wire clip is eight, each lead wire clip is positioned at the position of the top point of a regular octagon, and the space between the sub-leads limited by the eight lead wire clips is 500 mm to 550 mm. Through adopting the structure, the insulator fitting string of the utility model can effectively reduce the line surface electric field intensity, the corona noise and the radio interference, and not only can decrease the probability of the sub span oscillation, but also can ensure that the no collision occurs between the fittings when the wind deviates, thus making the insulator fitting string of the utility model capable of being used in the AC ultra-high voltage long span transmitting line.
Description
Technical field
The utility model relates to a kind of insulation gold utensil string that is used for long distance transmission line, the particularly a kind of big crossing insulator gold utensil of AC extra high voltage string that is used for the big overhead crossing engineering of 1000KV.
Background technology
In the ultra-high-tension power transmission line field, the alternating voltage in the transmission line is called AC extra high voltage more than or equal to 1000KV, crosses over more than or equal to big leap of 1000 meters be called.At present, China does not have the big overhead crossing engineering of the AC extra high voltage of 1000KV as yet, does not therefore have the big crossing insulator gold utensil of corresponding AC extra high voltage serial type.And existing insulator hardware string all is to be applied in 500KV and the following transmission of electricity circuit, and the string maximum load of dangling is 4 * 530KN, and the strain insulator-string maximum load is 6 * 400KN.The yoke plate that existing insulator hardware string generally comprises the insulator string that is connected with shaft tower by the gold utensil suspension member, be connected in grading ring on the insulator string, be connected with insulator string by connecting plate and link and be connected in wire clamp on the yoke plate.In existing insulator hardware string, wire clamp on the yoke plate is generally 4, the sub-conductor spacing that this wire clamp limits is about 400mm, if use it in the big leap transmission line of AC extra high voltage, can form excessive circuit surface electric field intensity, and corona noise, radio interference are also relatively more serious.
And, in existing insulator hardware string, grading ring is arranged between first, second insulator, cause the maldistribution of voltage on each insulator, in use for some time, the cracking degree difference of each insulator, the ratio of the insulator cracking that particularly the part pressurized is big is very fast, thus the useful life of having reduced whole insulator string.In addition, a plurality of wire clamps in the existing suspension insulator gold utensil string generally all are connected on the yoke plate that dangles, and not only overall structure is bigger, and when wind was arranged, discontinuity was rotated dumb, cause windage bigger, thereby increased the weight of the load of shaft tower.
And in existing insulator hardware string, insulator string is on the different height with the tie point of connecting plate and the tie point of dangle yoke plate (or strain insulator yoke plate) and connecting plate, after wherein an insulator string ruptures, to cause other a few insulator string discontinuity, stressed bigger one will rupture subsequently, remaining thereupon insulator string also can rupture in succession, thereby causes the accident of integral insulation substring fracture easily.
Therefore, be necessary to provide a kind of novel insulator hardware string, to overcome the existing existing defective of insulator hardware string.
Summary of the invention
Technical problem to be solved in the utility model is, the big crossing insulator gold utensil of a kind of AC extra high voltage string is provided, and it can reduce surface electric field intensity, corona noise and radio interference, and it is applicable in the big leap transmission of electricity of the AC extra high voltage circuit.
Technical problem to be solved in the utility model also is, the big crossing insulator gold utensil of a kind of AC extra high voltage string is provided, and it can make voltage be uniformly distributed on each insulator, has improved the useful life of insulator string.
Technical problem to be solved in the utility model also is, the big crossing insulator gold utensil of a kind of AC extra high voltage string is provided, and the yoke plate that dangles wherein has flexible rotational structure, thereby reduces windage, has alleviated the load to shaft tower.
Technical problem to be solved in the utility model also is, provide the big crossing insulator gold utensil of a kind of AC extra high voltage string, by the design of distich board connecting structure, when making its insulator string one fracture, the power that it carried can be evenly distributed on other connection, avoids the generation of whole fracture accident.
Above-mentioned technical problem of the present utility model can adopt following technical scheme to solve, the big crossing insulator gold utensil of a kind of AC extra high voltage string, comprise multi-joint insulator string and the grading ring that is connected on this multi-joint insulator string, be connected with connecting plate in this multi-joint insulator string lower end, on this connecting plate, be connected with the wire clamp yoke plate, be connected with wire clamp on this wire clamp yoke plate, this wire clamp has eight, and be octagon and distribute, each wire clamp is positioned at the vertex position of octagon, and the sub-conductor spacing that these eight wire clamps limit is 500mm-550mm.
In the utility model, described grading ring is arranged between the second and the 3rd insulator of insulator string.
In the utility model, the tie point of described every insulator string and connecting plate and the tie point of wire clamp yoke plate and connecting plate are on sustained height.
In the utility model, described wire clamp yoke plate can be connected on the described connecting plate by link plate.
In the utility model, described insulator hardware string can be the string that dangles, and this wire clamp yoke plate that dangles string is made up of upper connective plate and lower linking plate, and this upper connective plate and lower linking plate are rotatably connected to together.
As a concrete example, described upper connective plate links together by the link that two or more are connected in series mutually in the centre position with lower linking plate.
In the utility model, described insulator hardware string can be strain insulator-string, and the wire clamp yoke plate of this strain insulator-string is a whole plate, and described a plurality of wire clamps are connected on this whole plate.
In the utility model, described insulator string can be 6,8 or 12.
In the utility model, can be connected with 8 wire clamps on the described wire clamp yoke plate.
In the insulator hardware string with 6 insulator strings of the present utility model, described connecting plate is made of two three yoke plate groups, and each three yoke plate group forms a whole plate, and is connected with three insulator strings.Be connected with two link plates between the tie point of the insulator string at this on each three yoke plate group, the lower end of these two link plates is connected on one two connecting plate, and this two connecting plates lower end is connected on the wire clamp yoke plate.
Utilize said structure of the present utility model, effect of the present utility model is significant: 1) because insulator hardware string wire clamp of the present utility model is eight wire clamps that are distributed in the vertex position of octagon, and the sub-conductor spacing of its qualification is between the 500mm-550mm, when this insulator hardware string is used for the big leap transmission line of ultra high voltage, not only can effectively reduce the circuit surface electric field intensity, corona noise, radio interference, and both can reduce the probability of subspan oscillation, can guarantee again when windage yaw, not bump between the gold utensil, thereby provide advantage for carrying out the big leap transmission of electricity of AC extra high voltage.2) be arranged between second insulator and the 3rd insulator owing to grading ring of the present utility model, evidence, the distribution ratio of voltage on each insulator is more even, thereby has avoided the excessive situation of the sub-pressurized of SI semi-insulation, has prolonged the useful life of insulator.3) since the tie point of the tie point of the every insulator string of the utility model and connecting plate and wire clamp yoke plate and connecting plate on sustained height, guaranteed after a fracture, the power that this connection insulator string bears can be evenly distributed on other connection insulator strings, thereby has avoided the accident of whole fracture to take place.4) because wire clamp yoke plate of the present utility model is made up of two upper connective plate and lower linking plates that are pivotally attached to together, when wind was arranged, this upper connective plate and lower linking plate can reduce windage by flexible rotation, thereby alleviated the load of shaft tower.
Description of drawings
Fig. 1 the utlity model has the string structure schematic diagram that dangles of 6 insulator strings;
The end view of Fig. 2 the utility model Fig. 1;
Fig. 3 the utlity model has the string structure schematic diagram that dangles of 8 insulator strings;
The end view of Fig. 4 the utility model Fig. 3;
Fig. 5 the utlity model has the strain insulator-string structural representation of 6 insulator strings;
The end view of Fig. 6 the utility model Fig. 5;
Fig. 7 the utlity model has the strain insulator-string structural representation of 8 insulator strings;
The end view of Fig. 8 the utility model Fig. 7;
Fig. 9 the utlity model has the strain insulator-string structural representation of 12 insulator strings;
The end view of Figure 10 the utility model Fig. 9;
The distribution schematic diagram of wire clamp on the wire clamp yoke plate among Figure 11 Fig. 6 of the present utility model, Fig. 8, Figure 10.
Embodiment
Shown in Fig. 1-11, the big crossing insulator gold utensil of AC extra high voltage of the present utility model string comprises multi-joint insulator string 1 and the grading ring 2 that is connected on this multi-joint insulator string 1, be connected with connecting plate 3 in this multi-joint insulator string 1 lower end, on this connecting plate 3, be connected with wire clamp yoke plate 4, be connected with eight wire clamps 5 on this wire clamp yoke plate 4, and be octagon and distribute, each wire clamp is positioned at the vertex position of octagon, the sub-conductor interval S that these eight wire clamps 5 limit is that (as shown in figure 11, each wire clamp specifically is denoted as 51 respectively to 500mm-550mm, 52,53,54,55,56,57,58).Utilize said structure, insulator hardware string of the present utility model is when being used for the big leap transmission line of ultra high voltage, not only can effectively reduce circuit surface electric field intensity, corona noise, radio interference, and both can reduce the probability of subspan oscillation, can guarantee again when windage yaw, not bump between the gold utensil, thereby provide advantage for carrying out the big leap transmission of electricity of AC extra high voltage.The sub-conductor spacing that these eight wire clamps 5 limit can be determined as required, for example selects 500mm, 530mm, 550mm etc. for use.
In the present invention, described grading ring 2 is arranged between second insulator 12 and the 3rd insulator 13 of insulator string 1.Like this, voltage can relatively be evenly distributed on each insulator, thereby has avoided the excessive situation of the sub-pressurized of SI semi-insulation, has prolonged the useful life of insulator string 1.
As Fig. 2, shown in Figure 6, in the utility model, described every insulator string 1 is arranged on the sustained height with the tie point 31 of connecting plate 3 and the tie point 32 of wire clamp yoke plate 4 and connecting plate 3, guaranteed after an insulator string 1 fracture, the power that this connection insulator string 1 bears can be evenly distributed on other connection insulator strings 1, thereby has avoided the generation of whole fracture accident.
In the utility model, shown in Fig. 1-10, described wire clamp yoke plate 4 can be connected on the connecting plate 3 by link plate 6.
Shown in Fig. 1-4, as a kind of optional execution mode, described insulator hardware string can be the string that dangles, and this wire clamp yoke plate 4 that dangles string is made up of upper connective plate 41 and lower linking plate 42, and this upper connective plate 41 and lower linking plate 42 are rotatably connected to together.Like this, when wind was arranged, this upper connective plate 41 and lower linking plate 42 can reduce windage by the flexible rotation between them, thereby alleviate the load of shaft tower.
As a concrete example, as Fig. 1, shown in Figure 3, described upper connective plate 41 links together by two or more links that are connected in series mutually 43 in the centre position with lower linking plate 42, is in the same place thereby can upper connective plate 41 be rotatably connected with lower linking plate 42 by being rotatably connected of a plurality of links.
Shown in Fig. 5-10, in the utility model, as another optional execution mode, described insulator hardware string can be strain insulator-string, the wire clamp yoke plate 4 of this strain insulator-string is a whole plate, and described a plurality of wire clamps 5 are connected on the wire clamp connecting plate 4 of this whole plate formation.Like this, the wire clamp connecting plate 4 of this whole plate formation can be evenly distributed to the load of the lead on the wire clamp 5 on the link plate 6 that connects this wire clamp connecting plate 4.And when wherein an insulator string 1 ruptured, the wire clamp connecting plate 4 that constitutes by this whole plate can be distributed to power on other several insulator strings 1, thereby avoided the generation of whole fracture accident.
In the utility model, the connection number of described insulator string 1 can be set to more than three or three according to the needs of institute's bearing load.As example, the insulator hardware string shown in Fig. 1-2 is 6 strings that dangle, and the insulator hardware string shown in Fig. 3-4 is 8 strings that dangle; Insulator hardware string shown in Fig. 5-6 is 6 strain insulator-strings, and the insulator hardware string shown in Fig. 7-8 is 8 strain insulator-strings; Insulator hardware string shown in Fig. 9-10 is 12 strain insulator-strings.
Shown in Fig. 1-2, Fig. 5-6, in the insulator hardware string with 6 insulator strings 1 of the present utility model, described connecting plate 3 is made of for 33 groups two three yoke plates, each three yoke plate group 33 forms a whole plate, and be connected with three insulator strings 1, thereby load is evenly distributed on each insulator string 1 by these two three yoke plates 33.In this example, be connected with two link plates 6 between the tie point 31 of the insulator string 1 at this on each three yoke plate group 33, the lower end of these two link plates 6 is connected on one two connecting plate 7, and these two connecting plates, 7 lower ends are connected on the wire clamp yoke plate 4.
The miscellaneous part of insulator hardware string of the present utility model and structure can be similar with existing insulator hardware string, insulator hardware string for example of the present utility model also has this multi-joint insulator string 1 is connected in connection tower gold utensil 8 on the shaft tower and corresponding link plate 81, connecting plate 82 etc., describes in detail no longer one by one at this.
The foregoing description is several embodiment of the present utility model, only is used to illustrate the utility model, but not is used to limit the utility model.
Claims (10)
1. the big crossing insulator gold utensil of AC extra high voltage string, comprise multi-joint insulator string and the grading ring that is connected on this multi-joint insulator string, be connected with connecting plate in this multi-joint insulator string lower end, on this connecting plate, be connected with the wire clamp yoke plate, be connected with wire clamp on this wire clamp yoke plate, it is characterized in that, this wire clamp has eight, and be the octagon distribution, and each wire clamp is positioned at the vertex position of octagon, and the sub-conductor spacing that these eight wire clamps limit is 500mm-550mm.
2. the big crossing insulator gold utensil of AC extra high voltage string according to claim 1 is characterized in that described grading ring is arranged between second insulator and the 3rd insulator of insulator string.
3. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 1 string is characterized in that the tie point of described every insulator string and connecting plate and the tie point of wire clamp yoke plate and connecting plate are on sustained height.
4. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 1 string, it is characterized in that, described insulator hardware string is the string that dangles, and this wire clamp yoke plate that dangles string is made up of upper connective plate and lower linking plate, and this upper connective plate and lower linking plate are rotatably connected to together.
5. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 4 string is characterized in that described upper connective plate links together by the link that two or more are connected in series mutually in the centre position with lower linking plate.
6. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 1 string is characterized in that described insulator hardware string is a strain insulator-string, and the wire clamp yoke plate of this strain insulator-string is a whole plate, and described eight wire clamps are connected on this whole plate.
7. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 1 string is characterized in that described insulator string can be 6,8 or 12.
8. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 1 string is characterized in that, is connected with 8 wire clamps on the described wire clamp yoke plate.
9. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 1 string, it is characterized in that, described insulator hardware string has 6 insulator strings, described connecting plate is made of two three yoke plate groups, each three yoke plate group forms as a whole, and the tie point of the tie point of described every insulator string and plate group and wire clamp yoke plate and plate group is on sustained height.
10. the big crossing insulator gold utensil of AC extra high voltage as claimed in claim 9 string, it is characterized in that, be connected with two link plates between the tie point of the insulator string at this on each three yoke plate group, the lower end of these two link plates is connected on one two connecting plate, and this two connecting plates lower end is connected on the wire clamp yoke plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720103907 CN201017729Y (en) | 2007-03-22 | 2007-03-22 | AC extra-high voltage large crossing insulator metal fittings string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200720103907 CN201017729Y (en) | 2007-03-22 | 2007-03-22 | AC extra-high voltage large crossing insulator metal fittings string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201017729Y true CN201017729Y (en) | 2008-02-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200720103907 Expired - Lifetime CN201017729Y (en) | 2007-03-22 | 2007-03-22 | AC extra-high voltage large crossing insulator metal fittings string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201017729Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009339A (en) * | 2012-12-11 | 2013-04-03 | 辽宁省电力有限公司朝阳供电公司 | Power operation connecting external member |
| CN103762045A (en) * | 2013-11-22 | 2014-04-30 | 国家电网公司 | Suspension insulator string for extra-high-voltage alternating current circuit |
| CN103871693A (en) * | 2014-03-05 | 2014-06-18 | 国家电网公司 | 550 kN trigeminy V-shaped pendent insulator string for UHV (Ultra High Voltage) transmission line |
| CN104240865A (en) * | 2014-08-26 | 2014-12-24 | 江东金具设备有限公司 | Composite insulator triple Y-shaped overhung string |
| CN106384987A (en) * | 2015-07-27 | 2017-02-08 | 中国电力科学研究院 | Interval rod used for insulator chain |
| CN106711904A (en) * | 2015-07-27 | 2017-05-24 | 中国电力科学研究院 | Shock absorbing spacer of insulator strings |
| CN109494025A (en) * | 2018-10-24 | 2019-03-19 | 中国电力科学研究院有限公司 | A kind of three I type suspension strings |
-
2007
- 2007-03-22 CN CN 200720103907 patent/CN201017729Y/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103009339A (en) * | 2012-12-11 | 2013-04-03 | 辽宁省电力有限公司朝阳供电公司 | Power operation connecting external member |
| CN103009339B (en) * | 2012-12-11 | 2016-03-30 | 国网辽宁省电力有限公司朝阳供电公司 | Electric operating connectivity kit |
| CN103762045A (en) * | 2013-11-22 | 2014-04-30 | 国家电网公司 | Suspension insulator string for extra-high-voltage alternating current circuit |
| CN103762045B (en) * | 2013-11-22 | 2017-02-01 | 国家电网公司 | Suspension insulator string for extra-high-voltage alternating current circuit |
| CN103871693A (en) * | 2014-03-05 | 2014-06-18 | 国家电网公司 | 550 kN trigeminy V-shaped pendent insulator string for UHV (Ultra High Voltage) transmission line |
| CN103871693B (en) * | 2014-03-05 | 2016-02-10 | 国家电网公司 | UHV transmission line 550kN tri-V-type suspension insulator |
| CN104240865A (en) * | 2014-08-26 | 2014-12-24 | 江东金具设备有限公司 | Composite insulator triple Y-shaped overhung string |
| CN106384987A (en) * | 2015-07-27 | 2017-02-08 | 中国电力科学研究院 | Interval rod used for insulator chain |
| CN106711904A (en) * | 2015-07-27 | 2017-05-24 | 中国电力科学研究院 | Shock absorbing spacer of insulator strings |
| CN106711904B (en) * | 2015-07-27 | 2018-09-14 | 中国电力科学研究院 | A kind of damping conductor spacer of insulator chain |
| CN109494025A (en) * | 2018-10-24 | 2019-03-19 | 中国电力科学研究院有限公司 | A kind of three I type suspension strings |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ELECTRIC POWER RESEARCH INSTITUTE Free format text: FORMER OWNER: GUOWANG BEIJING POWER BUILDING ACADEMY Effective date: 20090724 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090724 Address after: Beijing City, Haidian District small business Qinghe Road No. 15 Chinese Electric Power Research Institute of the Ministry of science and technology, zip code: 100192 Patentee after: China Electric Power Research Institute Address before: Beijing City, Xuanwu District Guang'an South Binhe Road 33, zip code: 100055 Patentee before: Beijing Electric Power Construction Research Institute of SGCC |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20080206 |