CN202978174U - Windage yaw flashover preventing device of transmission lines - Google Patents
Windage yaw flashover preventing device of transmission lines Download PDFInfo
- Publication number
- CN202978174U CN202978174U CN 201220714998 CN201220714998U CN202978174U CN 202978174 U CN202978174 U CN 202978174U CN 201220714998 CN201220714998 CN 201220714998 CN 201220714998 U CN201220714998 U CN 201220714998U CN 202978174 U CN202978174 U CN 202978174U
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- China
- Prior art keywords
- high pressure
- resistant insulation
- pressure resistant
- transmission line
- suspension clamp
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Abstract
The utility model relates to a windage yaw flashover preventing device of transmission lines, wherein the upper end of an electrical insulator is fixed on the upper part of a transmission line tower, the upper end of a suspension clamp is fixed on the lower end of the electrical insulator, a high voltage resistant insulated wrapping cover is clamped at the outside of the suspension clamp, a center hole is processed on the high voltage resistant insulated wrapping cover, left and right high voltage resistant insulated jackets of the transmission line are respectively fixed on the two ends of the center hole, and the transmission line is penetrated in the left and right high voltage resistant insulated jackets of the transmission line and the center hole of the high voltage resistant insulated wrapping cover. When the suspension clamp and the transmission line are deflected by the wind power to approach to the grounded transmission line tower, a discharge trip accident is avoided by the protection of the high voltage resistant insulated wrapping cover and the left and right high voltage resistant insulated jackets. The windage yaw flashover preventing device is simple in structure and is capable of effectively avoiding windage yaw flashover of transmission lines.
Description
Technical field
The utility model relates to a kind of flashover of power transmission circuit caused by windage yaw Prevention Technique, belongs to the T ﹠ D Technology field.
Background technology
High pressure overhead power line is being born the delivery of electrical energy function, is extremely important infrastructure in the national economic development, and any fault of power transmission engineering brings significant impact all can for economic construction and social development.
The windage yaw of high pressure overhead power line wire is to threaten one of key factor of line security stable operation, usually causes line tripping, wire electric arc burn, disconnected thigh, broken string etc.Fast development along with power grid construction; And the rapid expansion of electrical network scale, 500kV and above superhigh pressure, ultra high voltage overhead power transmission are increasing by the transmission line in complex-terrain and adverse weather condition area, the circuit windage yaw trip accident that strong wind causes is showed increased also, bring very large impact for security of system stable operation, and cause the tremendous economic loss.
The wire windage yaw often occurs in strong wind weather or mima type microrelief climatic province, mountain area, leave the home position displacement that deflects under the wind-force effect when live wire, near wire pole tower, bracing wire or the earth electrodes such as trees and construction of structures, will produce arcing discharge, flashover power outage.
Electrical Engineer, designer and the supervisory engineering staff harm that windage yaw causes to wire is paid much attention to, the technical measures of various control windage yaw have been proposed, some schemes are because of the too high shortage Technical Economy of cost, what have is difficult to carry out because building the corridor condition restriction, and particularly the windage yaw problem on existing working line is not solved all the time.
In existing windage yaw means of prevention, generally have by increasing the shaft tower height and lengthening the way that cross-arm stretches out, thereby strengthen the distance between live wire and possible earth electrode, even the large angle of wind deflection of generation still has enough insulation distances in strong wind, keep enough insulating capacities.This method cost is high, long in time limit, shaft tower needs integral reinforcing, even increases and takes up an area basis etc., and most of overhead transmission lines do not possess operational feasibility.Using suspension insulator or wire jumper insulator instead upper end can not free-moving fixed structure, it is so-called windage yaw preventing composite insulator, what be subject to that wind-force does that the used time shows at the live wire end is a kind of cantilever Beam structure, but because insulator is the elongated rods body, still can be crooked when wind-force is large, wire continues skew discharge accident occurs.
Summary of the invention
In order to overcome the shortcoming of prior art, the utility model provides a kind of power transmission line wind inclined to one side flashover device, and it is simple in structure, can effectively prevent flashover of power transmission circuit caused by windage yaw.
The technical scheme in the invention for solving the technical problem is: the top of electric power line pole tower is the electric insulator upper end fixedly, the lower end of electric insulator is the suspension clamp upper end fixedly, clamp high pressure resistant insulation in the outside of suspension clamp and coat cover, high pressure resistant insulation coats and is covered with centre bore, the two ends of centre bore are the fixing left and right high pressure resistant insulation sheath of transmission pressure respectively, and the left and right high pressure resistant insulation sheath of described transmission pressure and high pressure resistant insulation coat in the centre bore of cover and be installed with transmission pressure.When wind-force makes the electric power line pole tower of suspension clamp and the close ground connection of transmission pressure deflection, coat the protection of cover and left and right high pressure resistant insulation sheath due to high pressure resistant insulation, avoided the generation of discharge trip accident.
The utility model is simple in structure, can effectively prevent flashover of power transmission circuit caused by windage yaw.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the utility model the first embodiment schematic diagram;
Fig. 2 is the utility model the second embodiment schematic diagram;
Fig. 3 is the utility model the 3rd embodiment schematic diagram.
Embodiment:
As shown in Figure 1, be the utility model single conductor fixed form.
The top of electric power line pole tower 1 is electric insulator 2 upper ends fixedly, the lower end of electric insulator 2 is suspension clamp 6 upper ends fixedly, clamp high pressure resistant insulation in the outside of suspension clamp 6 and coat cover 5, high pressure resistant insulation coats cover 5 centre bore, the two ends of centre bore are the fixing left and right high pressure resistant insulation sheath 4 of transmission pressure, 7 respectively, the left and right high pressure resistant insulation sheath 4 of described transmission pressure, 7 and high pressure resistant insulation coat in the centre bore of cover 5 and be installed with transmission pressure 3.When wind-force makes suspension clamp 6 and transmission pressure 3 deflections near the electric power line pole tower 1 of ground connection, because high pressure resistant insulation coats cover 5 and left and right high pressure resistant insulation sheath 4,7 protection, avoided the generation of discharge trip accident.
As shown in Figure 2, be the utility model double bundle conductor fixed form.Basic identical with the machine made structure of Fig. 1 single conductor, just the shape of suspension clamp 6 and outside clamping high pressure resistant insulation coating cover 5 thereof is different, is strip.
As shown in Figure 3, be the utility model conductors on quad bundled fixed form.Basic identical with the machine made structure of Fig. 1 single conductor, just the shape of suspension clamp 6 and outside clamping high pressure resistant insulation coating cover 5 thereof is different, is " well " shape.
The applicable electric pressure 1000V of above embodiment and above overhead transmission line windage yaw Prevention Technique.
Above embodiment is only the certain applications form of this utility model, also is applicable to other the relevant wind-deviation technical measures of wire form, strain clamp and bracing wire.
Claims (3)
1. inclined to one side flashover device of power transmission line wind, it is characterized in that: the top of electric power line pole tower (1) is electric insulator (2) upper end fixedly, the lower end of electric insulator (2) is suspension clamp (6) upper end fixedly, the outside of suspension clamp (6) clamps high pressure resistant insulation and coats cover (5), high pressure resistant insulation coats cover (5) centre bore, the two ends of centre bore are fixing left respectively, right high pressure resistant insulation sheath (4, 7), described transmission pressure is left, right high pressure resistant insulation sheath (4, 7) and in the centre bore of high pressure resistant insulation coating cover (5) be installed with transmission pressure (3), when wind-force makes the electric power line pole tower (1) of suspension clamp (6) and the close ground connection of transmission pressure (3) deflection, because high pressure resistant insulation coats cover (5) and left, right high pressure resistant insulation sheath (4, 7) protection, avoided the generation of discharge trip accident.
2. the inclined to one side flashover device of power transmission line wind according to claim 1 is characterized in that: described suspension clamp (6) and the outside high pressure resistant insulation that clamps thereof coat cover (5) and are strip.
3. the inclined to one side flashover device of power transmission line wind according to claim 1 is characterized in that: described suspension clamp (6) and the outside high pressure resistant insulation that clamps thereof coat cover (5) and are " well " shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220714998 CN202978174U (en) | 2012-12-21 | 2012-12-21 | Windage yaw flashover preventing device of transmission lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220714998 CN202978174U (en) | 2012-12-21 | 2012-12-21 | Windage yaw flashover preventing device of transmission lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202978174U true CN202978174U (en) | 2013-06-05 |
Family
ID=48519201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220714998 Expired - Lifetime CN202978174U (en) | 2012-12-21 | 2012-12-21 | Windage yaw flashover preventing device of transmission lines |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202978174U (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904603A (en) * | 2014-02-27 | 2014-07-02 | 广东电网公司电力科学研究院 | Distribution line typhoon-preventing integrated device capable of achieving pole and wire protecting and achieving pole protecting, wire abandoning, energy absorbing and disengaging |
| CN103997007A (en) * | 2014-05-22 | 2014-08-20 | 国家电网公司 | Protection device for preventing windage yaw flashover of power transmission line |
| CN104158136A (en) * | 2014-08-27 | 2014-11-19 | 国家电网公司 | Wind deflection prevention transformation method for overhead transmission line |
| CN105119225A (en) * | 2015-09-26 | 2015-12-02 | 国网青海省电力公司 | Overhead transmission line windage-yaw proofing insulation fixing device |
| CN107104392A (en) * | 2017-05-24 | 2017-08-29 | 武汉理工大学 | A kind of Distributed Power Flow controller installation method suitable for overhead transmission line |
| CN109473930A (en) * | 2018-05-07 | 2019-03-15 | 金华送变电工程有限公司三为电力分公司 | A kind of mountain area high-tension electricity fixing device for air lead |
| CN109638749A (en) * | 2018-12-04 | 2019-04-16 | 国网江苏省电力有限公司无锡供电分公司 | A kind of overhead transmission line line protection device |
| CN109817394A (en) * | 2019-03-22 | 2019-05-28 | 国网湖南省电力有限公司 | Insulator L-type arranges wind-deviation remodeling method |
| CN111799735A (en) * | 2020-08-04 | 2020-10-20 | 山东鲁能光大电力器材有限公司 | Wind deflection prevention suspension clamp |
-
2012
- 2012-12-21 CN CN 201220714998 patent/CN202978174U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103904603A (en) * | 2014-02-27 | 2014-07-02 | 广东电网公司电力科学研究院 | Distribution line typhoon-preventing integrated device capable of achieving pole and wire protecting and achieving pole protecting, wire abandoning, energy absorbing and disengaging |
| CN103997007A (en) * | 2014-05-22 | 2014-08-20 | 国家电网公司 | Protection device for preventing windage yaw flashover of power transmission line |
| CN103997007B (en) * | 2014-05-22 | 2016-05-25 | 国家电网公司 | The inclined to one side arc protection device of a kind of power transmission line wind |
| CN104158136A (en) * | 2014-08-27 | 2014-11-19 | 国家电网公司 | Wind deflection prevention transformation method for overhead transmission line |
| CN105119225A (en) * | 2015-09-26 | 2015-12-02 | 国网青海省电力公司 | Overhead transmission line windage-yaw proofing insulation fixing device |
| CN107104392A (en) * | 2017-05-24 | 2017-08-29 | 武汉理工大学 | A kind of Distributed Power Flow controller installation method suitable for overhead transmission line |
| CN109473930A (en) * | 2018-05-07 | 2019-03-15 | 金华送变电工程有限公司三为电力分公司 | A kind of mountain area high-tension electricity fixing device for air lead |
| CN109638749A (en) * | 2018-12-04 | 2019-04-16 | 国网江苏省电力有限公司无锡供电分公司 | A kind of overhead transmission line line protection device |
| CN109638749B (en) * | 2018-12-04 | 2020-05-12 | 国网江苏省电力有限公司无锡供电分公司 | Overhead transmission line protection device |
| CN109817394A (en) * | 2019-03-22 | 2019-05-28 | 国网湖南省电力有限公司 | Insulator L-type arranges wind-deviation remodeling method |
| CN111799735A (en) * | 2020-08-04 | 2020-10-20 | 山东鲁能光大电力器材有限公司 | Wind deflection prevention suspension clamp |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |
|
| CX01 | Expiry of patent term |