CN103532078B - A kind of installation method of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line - Google Patents
A kind of installation method of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line Download PDFInfo
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- CN103532078B CN103532078B CN201310527500.6A CN201310527500A CN103532078B CN 103532078 B CN103532078 B CN 103532078B CN 201310527500 A CN201310527500 A CN 201310527500A CN 103532078 B CN103532078 B CN 103532078B
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 21
- 238000009413 insulation Methods 0.000 title claims abstract description 16
- 230000002265 prevention Effects 0.000 title claims abstract description 7
- 238000009434 installation Methods 0.000 title claims description 33
- 238000000034 method Methods 0.000 title claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000010931 gold Substances 0.000 claims abstract description 10
- 229910052737 gold Inorganic materials 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 6
- 229920006052 Chinlon® Polymers 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims abstract description 5
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 5
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 claims description 8
- 239000012211 strain insulator Substances 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 230000005611 electricity Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
A kind of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line, including flexible barred body, flexible barred body two ends are connected to connection gold utensil, and flexible barred body includes internally positioned excellent core and is positioned at rod full skirt outside core, full skirt is silicon rubber composite material, and rod core is the chinlon material of high intensity load.Can effectively stop wire deflection for shaft tower under wind effect, it is to avoid circuit windage yaw is tripped, improve transmission line of electricity safety operation level.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line field, particularly relate to the wind-deviation flashover device of ultra-high-tension power transmission line.
Background technology
Power transmission circuit caused by windage is that guide line deviates under the action of the forces of the wind, causes that it is inadequate to shaft tower insulation distance, the phenomenon of flashover electric discharge occurs.Circuit windage yaw reclosing success rate is low, often results in wire arc burn, the disconnected serious consequence such as stock, broken string.Power transmission circuit caused by windage is to affect one of transmission line of electricity principal element running safety, and especially 500kV flashover of power transmission circuit caused by windage yaw Frequent Accidents runs safety to transmission line of electricity and causes very big harm.
In the wild, the impact by natural conditions climate change is very big for overhead transmission line longtime running.Windage yaw is typically accompanied by the terrible weather such as strong wind, thunderstorm when occurring movable, causes difficulty to breakdown judge and lookup.Strick precaution modification measures common at present is to install jumper string or heavy punch piece additional on the line conductor that wind leaning fault occurs, but wire its wind-deviation effect under both modes are transformed is often undesirable.First, still easily there is windage yaw tripping operation in the wire installing jumper string additional；Second, heavy punch piece surface area is big, it is easy to go for a drive, and when strong wind blows to hammer leaf, causes windage yaw discharge.3rd, after installing heavy punch piece additional on wire, owing to heavy punch piece every weighs hundreds of kilogram, and the stress of wire is according to designing requirement, there is certain higher limit, therefore add extra heavy burden to shaft tower, it is necessary to again check tower load, shaft tower can be sacrificed design margin simultaneously, causing easily occurs shaft tower impaired during strong wind, there is the broken string of falling tower time serious, and caused the consequence more serious than circuit windage yaw tripping operation, lose more than gain；Finally, the cost of heavy punch piece is high, and transport inconvenience, improvement and installation cost is high.
Summary of the invention
It is an object of the invention to provide a kind of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line and installation method, it is possible to effectively stop wire electric discharge to shaft tower under wind effect, it is to avoid circuit windage yaw is tripped, and improves transmission line of electricity safety operation level.
The technical scheme is that
A kind of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line, including flexible barred body, flexible barred body two ends are connected to connection gold utensil, and flexible barred body includes internally positioned excellent core and is positioned at rod full skirt outside core, full skirt is silicon rubber composite material, and rod core is the chinlon material of high intensity load.
Described drag-line is arranged on tower body, the upper end of drag-line is connected to the inner side of tower body upper conductor hanging point, the upper end of drag-line is near conducting wire hanging point, the lower end of drag-line is connected on the tower body below conducting wire hanging point, the lower end of drag-line is connected to tower body face and installation interior with the scope that vertical direction angle α is 0 ~ 60 degree, for playing the effect of wind-deviation, α is necessarily less than the windage yaw angle of calculating；The wind-deviation insulation drag-line installed on tower body is in order to prevent flashover fault, and drag-line stops that when there is windage yaw wire is to tower body inclining.
When for anchor support, A phase, B phase, C phase three-phase conducting wire are arranged vertically；Being provided with parallel upper, middle and lower cross-arm on anchor support from top to bottom, the end, one end of upper cross-arm is conducting wire hanging point, and conducting wire hanging point is connected to strain insulator string and the wire being connected on strain insulator string；The high-pressure side installation of drag-line upper end in the position of upper cross-arm bottom and near conducting wire hanging point place, the high-pressure side installation of drag-line lower end with in the scope residing for the middle cross-arm top in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
The high-pressure side installation of Article 2 drag-line upper end in the position of middle cross-arm bottom and near conducting wire hanging point place, the high-pressure side installation of Article 2 drag-line lower end with in the scope residing for the lower cross-arm top in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
The high-pressure side installation of Article 3 drag-line upper end in the position of lower cross-arm bottom and near conducting wire hanging point place, the high-pressure side installation of Article 3 drag-line lower end with in the scope residing for the tower body in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
When for tangent tower, A phase, B phase, C phase three-phase conducting wire are horizontally disposed；From left to right respectively left, center, right cross-arm on tangent tower, each phase cross-arm place is equipped with conducting wire hanging point, and each conducting wire hanging point is connected to suspension insulator and the wire being connected on suspension insulator；Adopt four drag-lines, the high-pressure side installation of Article 1 drag-line upper end in the position of left horizontal stretcher bottom and near conducting wire hanging point place, the high-pressure side installation of drag-line lower end with on the lateral tower body face in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree;Second, third drag-line upper end is symmetrically connected near the conducting wire hanging point place of middle cross-arm, second, third drag-line lower end be connected on tower body face and with the tower window face in the scope that vertical direction angle is 0 ~ 60 degree on install, second, third drag-line lower end is symmetrically arranged at the both sides of the conducting wire hanging point of middle phase cross-arm；The high-pressure side installation of Article 4 drag-line upper end in the position of right horizontal stretcher bottom and near conducting wire hanging point place, the high-pressure side installation of drag-line lower end with on the lateral tower body face in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
The present invention includes the connection gold utensil at flexible barred body and barred body two ends thereof.Barred body top layer is silicone rubber compound full skirt, and rod core is made up of the chinlon material of high intensity load.By installing wind-deviation flexible insulation drag-line at shaft tower correct position, wire is stoped to produce the deflection of harm line security when strong wind.
Advantages of the present invention:
First, it is possible to effectively stop wire for the deflection of shaft tower under wind effect, it is to avoid circuit windage yaw is tripped, and improves transmission line of electricity safety operation level；
Second, flexible barred body deadweight is very light, additionally bears a heavy burden minimum therefore to shaft tower, it is not necessary to carry out the verification of shaft tower load；
3rd, transformation is installed conveniently, only need to punch on tower body, conventional supporting connection gold utensil is installed；
4th, in the like product of wind-deviation, weight the gentliest and has elasticity, therefore can coil placement, convenient transportation；Cost is low, and cost performance is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of the drag-line of the present invention；
Fig. 2 is the schematic diagram that the drag-line of the present invention is installed at anchor support；
Fig. 3 is the schematic diagram that the drag-line of the present invention is installed at tangent tower.
Detailed description of the invention
The present invention is applied to easily occur the ultra-high-tension power transmission line of all electric pressures of windage yaw, is particularly applied to 500kV ultra-high-tension power transmission line.
As it is shown in figure 1, the drag-line 1 of the present invention includes flexible barred body 12, the two ends up and down of flexible barred body 12 are connected to high-pressure side gold utensil 11, and flexible barred body 12 includes full skirt 13 and rod core 14, and flexible barred body 12 top layer is insulation full skirt 13, and full skirt 13 is silicon rubber composite material.Rod core 14 is positioned at full skirt 13, and rod core 14 is the chinlon material of high intensity load.High-pressure side gold utensil 11, for connecting with tower body, when connecting installation, only need to punch on tower body, the conventional supporting connection gold utensil of installation, easy to operate.
As in figure 2 it is shown, the single back line for 500kV double back anchor support illustrates, A phase, B phase, C phase as shown are three-phase conducting wire and are arranged vertically.The upper cross-arm 21 of anchor support, middle cross-arm 22, lower cross-arm 23 be arranged in parallel (cross-arm of anchor support top is ground wire cross-arm) from top to bottom, and the right-hand member end of each cross-arm of upper, middle and lower is respectively connected with strain insulator string 4 and the wire 5 being connected on strain insulator string 4.The high-pressure side gold utensil 11 of drag-line 1 upper end of the present invention is arranged on the position of cross-arm 21 bottom, and near conducting wire hanging point place, the high-pressure side gold utensil 11 of lower end is arranged on middle cross-arm 22(B phase cross-arm) scope residing for top.Due to when windage yaw occurs be partial to shaft tower drift angle when more than 60 degree, it is easily caused it inadequate with the insulation distance of tower body, therefore, lower end can with (in the scope of m shown in Fig. 2) in the scope that vertical direction drift angle α is 0 ~ 60 degree, simultaneously suitable position can be selected to install according to practical situation.For N shown in arrow in scheming aweather, when N aweather blows to wire 5, wire 5 glances off (generation of windage yaw phenomenon) to tower body, now, if when strong wind vile weather, may result in the air insulation distance between the tower body face at wire 5 and left horizontal stretcher 21 bottom and tower body place not, thus there is windage yaw discharge accident.After the drag-line 1 of the present invention is installed, it can be seen that it lies across between wire and tower body, wire is stoped to continue to tower body direction deflection, thus ensureing enough air insulation distances, it is prevented that the generation of windage yaw discharge accident.Generally, distance ground more high wind speed is more big, and the probability that windage yaw occurs is more big, and therefore, the present invention is typically mounted at cross-arm place of the shaft tower the superiors.If there being monitoring to show, middle level and lower floor's cross-arm place wind speed are relatively big, windage yaw trip accident easily occur, it is possible to being arranged on middle cross-arm 22, lower cross-arm 23 place, determine according to practical situation, mounting means is identical with upper cross-arm 21 place.
As it is shown on figure 3, for 500kV tangent tower, A phase, B phase, that C phase as shown is three-phase conducting wire is horizontally disposed.The cross-arm of tangent tower includes left horizontal stretcher 24, middle cross-arm 25, right horizontal stretcher 26.The present embodiment adopts four drag-lines 1.Respectively it is respectively connected with strain insulator string 4 and the wire 5 being connected on strain insulator string 4.
First drag-line 1 upper end of the present invention is arranged on the position of left horizontal stretcher 24 bottom, and near conducting wire hanging point place, lower end is connected on lateral tower body face 3, tower body place, and is within the scope of 0 ~ 60 degree with the drift angle α of vertical direction, can select suitable position according to practical situation.It can be seen that after the drag-line 1 of the present invention is installed, the insulation distance to tower body when it can effectively ensure that wire to tower body direction deflection.When installing near B phase (middle phase) wire, owing to it to both sides, windage yaw can occur, two tower window faces 7 of tower body all should be installed, as shown in the figure, the upper end of second, third two drag-lines 1 is connected near the B phase conductor hanging point place of middle cross-arm 25, and the lower end of second, third two drag-lines 1 is installed (in the scope of n shown in Fig. 3) on tower window face 7 and with in the scope that vertical direction angle α is 0 ~ 60 degree.Second, third drag-line 1 lower end be connected on tower body face 7 and with the tower window face 7 in the scope that vertical direction angle is 0 ~ 60 degree on install, second, third drag-line 1 lower end is symmetrically arranged at the both sides of the conducting wire hanging point of middle cross-arm 25.
The C phase conductor of right horizontal stretcher 26 is symmetrical with A phase conductor, it is possible to reference to the mounting means of A phase conductor.
The A phase of above-described anchor support or tangent tower and the position of C phase conductor can exchange as required.
In sum, present configuration is succinct, be skillfully constructed, and can effectively prevent the generation of windage yaw discharge accident, it is ensured that transmission line of electricity safe operation.
Claims (5)
1. the installation method of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line, it is characterized in that: adopt windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line, including flexible barred body, flexible barred body two ends are connected to connection gold utensil, flexible barred body includes internally positioned excellent core and is positioned at rod full skirt outside core, full skirt is silicon rubber composite material, and rod core is the chinlon material of high intensity load；Described drag-line is arranged on tower body, the upper end of drag-line is connected to the inner side of tower body upper conductor hanging point, the upper end of drag-line is near conducting wire hanging point, the lower end of drag-line is connected on the tower body below conducting wire hanging point, the lower end of drag-line is connected to tower body face and installation interior with the scope that vertical direction angle α is 0 ~ 60 degree, for playing the effect of wind-deviation, α is necessarily less than the windage yaw angle of calculating；The wind-deviation insulation drag-line installed on tower body is in order to prevent flashover fault, and drag-line stops that when there is windage yaw wire is to tower body inclining.
2. installation method according to claim 1, it is characterised in that: when for anchor support, A phase, B phase, C phase three-phase conducting wire are arranged vertically；Being provided with parallel upper, middle and lower cross-arm on anchor support from top to bottom, the end, one end of upper cross-arm is conducting wire hanging point, and conducting wire hanging point is connected to strain insulator string and the wire being connected on strain insulator string；The high-pressure side installation of drag-line upper end in the position of upper cross-arm bottom and near conducting wire hanging point place, the high-pressure side installation of drag-line lower end with in the scope residing for the middle cross-arm top in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
3. installation method according to claim 2, it is characterized in that: the high-pressure side installation of Article 2 drag-line upper end in the position of middle cross-arm bottom and near conducting wire hanging point place, the high-pressure side installation of Article 2 drag-line lower end with in the scope residing for the lower cross-arm top in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
4. installation method according to claim 3, it is characterized in that: the high-pressure side installation of Article 3 drag-line upper end in the position of lower cross-arm bottom and near conducting wire hanging point place, the high-pressure side installation of Article 3 drag-line lower end with in the scope residing for the tower body in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
5. installation method according to claim 1, it is characterised in that: when for tangent tower, A phase, B phase, C phase three-phase conducting wire are horizontally disposed；From left to right respectively left, center, right cross-arm on tangent tower, each phase cross-arm place is equipped with conducting wire hanging point, and each conducting wire hanging point is connected to suspension insulator and the wire being connected on suspension insulator；Adopt four drag-lines, the high-pressure side installation of Article 1 drag-line upper end in the position of left horizontal stretcher bottom and near conducting wire hanging point place, the high-pressure side installation of drag-line lower end with on the lateral tower body face in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree;Second, third drag-line upper end is symmetrically connected near the conducting wire hanging point place of middle cross-arm, second, third drag-line lower end be connected on tower body face and with the tower window face in the scope that vertical direction angle is 0 ~ 60 degree on install, second, third drag-line lower end is symmetrically arranged at the both sides of the conducting wire hanging point of middle phase cross-arm；The high-pressure side installation of Article 4 drag-line upper end in the position of right horizontal stretcher bottom and near conducting wire hanging point place, the high-pressure side installation of drag-line lower end with on the lateral tower body face in the scope that vertical direction drift angle, upper end α is 0 ~ 60 degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310527500.6A CN103532078B (en) | 2013-10-31 | 2013-10-31 | A kind of installation method of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310527500.6A CN103532078B (en) | 2013-10-31 | 2013-10-31 | A kind of installation method of windage yaw prevention flexible insulation inhaul cable for high-voltage power transmission line |
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| CN103532078A CN103532078A (en) | 2014-01-22 |
| CN103532078B true CN103532078B (en) | 2016-06-29 |
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| CN106711905B (en) * | 2016-11-30 | 2024-06-11 | 国网新疆电力公司经济技术研究院 | Flexible composite material-based wind deflection prevention pole tower for power transmission line and construction method thereof |
| CN114086810B (en) * | 2021-10-18 | 2023-10-24 | 浙江德宝通讯科技股份有限公司 | Communication tower |
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| CN101859618A (en) * | 2010-05-24 | 2010-10-13 | 华北电力科学研究院有限责任公司 | Composite material flexible insulation device for high voltage transmission lines |
| CN202050218U (en) * | 2011-04-29 | 2011-11-23 | 吉林省电力有限公司通化供电公司 | Waving-prevention, adhesion-prevention and destruction-prevention system for high-voltage power transmission line |
| CN203536907U (en) * | 2013-10-31 | 2014-04-09 | 国家电网公司 | High voltage power transmission line wind deviation-resistant flexible insulation inhaul cable |
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