CN100566059C - The method of a kind of charged for replacement 500kV circuit " L " insulator string - Google Patents
The method of a kind of charged for replacement 500kV circuit " L " insulator string Download PDFInfo
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- CN100566059C CN100566059C CNB2008100582384A CN200810058238A CN100566059C CN 100566059 C CN100566059 C CN 100566059C CN B2008100582384 A CNB2008100582384 A CN B2008100582384A CN 200810058238 A CN200810058238 A CN 200810058238A CN 100566059 C CN100566059 C CN 100566059C
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- insulator
- insulator string
- tackle pulley
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Abstract
The method of a kind of charged for replacement 500kV circuit " L " insulator string, the present invention adopts monolithic card (4), group three tackle pulley (5) and manually twists mill (6) combination and free the operational method that " L " insulator string lead side is connected, overcome existing replacing insulator method load weight big, install complicated, the defective that labour intensity is high and the activity duration is long, use amount with minimizing instrument, obviously reduced operation intensity, shorten the activity duration, improved the remarkable advantage of operating efficiency and operational security greatly.
Description
Technical field:
Adopt monolithic card, group three tackle pulley and the combination of artificial strand mill to free the operational method that " L " insulator string lead side connects, free the connection of insulator string lead side when being applicable to charged for replacement 500kV circuit " L " insulator string.
Technical background:
The novel tower of the little corner ZVJB of straight line is applied on the 500kV transmission line, has played important effect at aspects such as making things convenient for line design, reduction project cost.This tower has adopted a new technology: " L " insulator string assembly type, the insulator sheet number of its interior angle insulator string and exterior angle insulator string all is 26, but the angle of two insulator strings and vertical is inequality, and " L " insulator string and gold utensil assembly drawing are as shown in Figure 1.
Because the insulator long-time running in the field, is subjected to the influence of various factors, the deterioration of insulator, damage are unavoidably.In order to guarantee the power supply reliability of 500kV transmission line, must change the insulator of deterioration, damage.The 500kV transmission line is important passway for transmitting electricity, will produce greatly influence to operation of power networks and supply of electrical energy if the mode that adopt to have a power failure is changed insulator, even can not realize, selects the mode of live line working to change just to become inevitable.General yoke plate jig, screw mandrel and the insulation arm-tie of adopting makes up when changing, and by tightening up screw mandrel the insulator string xial feed shifted, and frees being connected of insulator string lead side and cross-arm side then.
" L " insulator string is after xial feed shifts, bear the load that produces owing to the insulator string deadweight, the operating personnel only can't free the connection of insulator string lead side with manpower, transfusion bottle hook-type bottle supporting frame can be used to shift the insulator string deadweight and the load of generation in the existing Work tool.But, labour intensity and activity duration have been increased because the segmentation combination wanted by transfusion bottle hook-type bottle supporting frame and weight is big, installation is complicated.
Summary of the invention:
Transfusion bottle hook-type bottle supporting frame is wanted the segmentation combination and problems such as weight is big, installation complexity in order to solve, Dali Power Supply Bureau, Yunnan Power Grid Corporation transmission of electricity administrative institute is connected and shifts stressing conditions behind the load through research insulator string and lead side, monolithic card, group three tackle pulley and the combination of artificial strand mill are adopted in creationary proposition, after stay cord by artificial strand mill draw groups three tackle pulley made the insulator between monolithic card and the yoke plate lax, the operating personnel freed the operational method that insulator string lead side connects.
Job step is as follows:
(1) adopts yoke plate jig, screw mandrel and insulated tension pole combination, by tightening up the xial feed transfer of the insulator string that screw mandrel will change;
(2) two monolithic cards are installed in two insulator strings respectively by on the 3rd insulator of lead side;
(3) two ends with two group three tackle pulley are connected on two monolithic cards;
(4) pull rope that will organize three tackle pulley is put to ground and on artificial strand mill after passing the coaster that is anchored on the body of the tower respectively;
(5) tighten up the stay cord of group three tackle pulley by artificial strand mill, make the insulator between monolithic card and the yoke plate lax;
(6) operating personnel frees the connection of insulator string lead side.
The invention has the beneficial effects as follows:
Adopt monolithic card, group three tackle pulley and the combination of artificial strand mill to free the connection that operational method that " L " insulator string lead side is connected can realize " L " type insulator string lead side, this method can be changed used " L " insulator string of the little angle tower of 500kV transmission line straight line, can change straight line " V " insulator string again, and be applicable to the insulator string of different model and length.Adopt this operational method to reduce the use amount of instrument, significantly reduced operation intensity, shortened the activity duration, obviously improved operating efficiency and operational security, have stronger application value.
Further set forth content of the present invention below in conjunction with drawings and Examples.
Description of drawings:
Fig. 1 is an operation schematic diagram of the present invention.
Embodiment:
The inventive method job step is: as shown in Figure 1:
A, adopt yoke plate jig 1, screw mandrel 2 and insulated tension pole combination 3, by tightening up the xial feed transfer of the insulator string that screw mandrel will change;
B, two monolithic cards 4 are installed in two insulator strings respectively by on the 3rd insulator of lead side;
C, with two the group three tackle pulley 5 two ends be connected on two monolithic cards;
D, the pull rope that will organize three tackle pulley 5 are put to ground and on artificial strand mill 6 after passing the coaster that is anchored on iron tower 8 bodies of the tower respectively;
E, tighten up the stay cord of group three tackle pulley 5, the insulator 7 between monolithic card 4 and the yoke plate jig 1 is relaxed by artificial strand mill 6;
F, operating personnel free the connection of insulator string lead side.
Claims (1)
1, the method for a kind of charged for replacement 500kV circuit " L " insulator string is characterized in that, this method job step is:
A, adopt yoke plate jig (1), screw mandrel (2) and insulated tension pole combination (3), by tightening up the xial feed transfer of the insulator string that screw mandrel will change;
B, two monolithic cards (4) are installed in two insulator strings respectively by on the 3rd insulator of lead side;
C, with two the group three tackle pulley (5) two ends be connected on two monolithic cards;
D, the pull rope that will organize three tackle pulley (5) are put to ground and on artificial strand mill (6) after passing the coaster that is anchored on the body of the tower respectively;
E, tighten up group three tackle pulley (5) pull rope, the insulator between monolithic card (4) and the yoke plate jig (1) is relaxed by artificial strand mill (6);
F, operating personnel free the connection of insulator string lead side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100582384A CN100566059C (en) | 2008-04-02 | 2008-04-02 | The method of a kind of charged for replacement 500kV circuit " L " insulator string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2008100582384A CN100566059C (en) | 2008-04-02 | 2008-04-02 | The method of a kind of charged for replacement 500kV circuit " L " insulator string |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101252263A CN101252263A (en) | 2008-08-27 |
| CN100566059C true CN100566059C (en) | 2009-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2008100582384A Active CN100566059C (en) | 2008-04-02 | 2008-04-02 | The method of a kind of charged for replacement 500kV circuit " L " insulator string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100566059C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101546894B (en) * | 2009-04-29 | 2011-03-23 | 江苏省电力公司徐州供电公司 | Method for replacing 220KV steel pipe tower composite insulator electrifiedly |
| CN105743013B (en) * | 2016-03-28 | 2017-09-15 | 中国南方电网有限责任公司超高压输电公司南宁局 | The method of charged for replacement ± 500kV AC line anchor support insulator chains |
| CN112217143A (en) * | 2020-11-13 | 2021-01-12 | 云南电网有限责任公司带电作业分公司 | Operation method for replacing composite insulator in high-altitude area in 500kV line in live mode |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048286A (en) * | 1989-06-22 | 1991-01-02 | 西伯利亚科学研究院能源研究所 | On charged overhead transmission line, change the method and apparatus of defectiveness porcelain insulator in the suspension insulator string |
| CN2290937Y (en) * | 1997-01-14 | 1998-09-09 | 鞍山电业局试验所 | Live line work tool for replacing insulator |
| CN2912028Y (en) * | 2006-06-16 | 2007-06-13 | 冯海潮 | Live replacing device for compact six-line insulator string |
| JP2007295679A (en) * | 2006-04-24 | 2007-11-08 | Chugoku Electric Power Co Inc:The | Temporary holding tool for high-voltage cable |
-
2008
- 2008-04-02 CN CNB2008100582384A patent/CN100566059C/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1048286A (en) * | 1989-06-22 | 1991-01-02 | 西伯利亚科学研究院能源研究所 | On charged overhead transmission line, change the method and apparatus of defectiveness porcelain insulator in the suspension insulator string |
| CN2290937Y (en) * | 1997-01-14 | 1998-09-09 | 鞍山电业局试验所 | Live line work tool for replacing insulator |
| JP2007295679A (en) * | 2006-04-24 | 2007-11-08 | Chugoku Electric Power Co Inc:The | Temporary holding tool for high-voltage cable |
| CN2912028Y (en) * | 2006-06-16 | 2007-06-13 | 冯海潮 | Live replacing device for compact six-line insulator string |
Non-Patent Citations (4)
| Title |
|---|
| 500KV"L"型绝缘子串带电更换专用组合工具研制. 云南电业，第3期. 2006 * |
| 500千伏线路带电更换第一代直线塔、直线转角塔绝缘子串. 沈益鑫.江苏电机工程，第12卷第2期. 1993 * |
| 超高压直流输电线路带电更换直线绝缘子串施工工艺研究和应用. 陈小康等.安徽电力，第23卷第4期. 2006 * |
| 采用绝缘绳索更换输电线路耐张瓷瓶方法介绍. 张昆等.内蒙古电力技术，第24卷第2期. 2006 * |
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| Publication number | Publication date |
|---|---|
| CN101252263A (en) | 2008-08-27 |
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