CN203536909U - High voltage power transmission line wind deviation-resistant rigid insulation inhaul cable - Google Patents
High voltage power transmission line wind deviation-resistant rigid insulation inhaul cable Download PDFInfo
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- CN203536909U CN203536909U CN201320679638.3U CN201320679638U CN203536909U CN 203536909 U CN203536909 U CN 203536909U CN 201320679638 U CN201320679638 U CN 201320679638U CN 203536909 U CN203536909 U CN 203536909U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 26
- 238000009413 insulation Methods 0.000 title claims abstract description 18
- 239000002131 composite material Substances 0.000 claims abstract description 4
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 4
- 239000003822 epoxy resin Substances 0.000 claims abstract description 3
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 3
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 20
- 239000010931 gold Substances 0.000 claims description 20
- 229910052737 gold Inorganic materials 0.000 claims description 20
- 238000009434 installation Methods 0.000 claims description 10
- 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
- 239000011152 fibreglass Substances 0.000 claims description 2
- 239000003365 glass fiber Substances 0.000 abstract 1
- 239000004945 silicone rubber Substances 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 206010050031 Muscle strain Diseases 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 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
- 230000009466 transformation Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model discloses a high voltage power transmission line wind deviation-resistant rigid insulation inhaul cable comprising a rod body, two ends of which are connected with connecting armor clamps. The rod body comprises a rod core disposed in an inner part and an umbrella skirt disposed on an outer part of the rod core. The umbrella skirt is made of silicone rubber composite materials, and the rod core is the epoxy resin glass fiber draw rod. The high voltage power transmission line wind deviation-resistant rigid insulation inhaul cable is advantageous in that the deviation of the lead with respect to the tower under the action of the strong wind can be prevented, the trip-out caused by the wind deviation of the line can be prevented, and the safe operation level of the power transmission line can be improved.
Description
Technical field
The utility model relates to ultra-high-tension power transmission line field, relates in particular 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 departs under the effect of wind-force, causes it inadequate to shaft tower insulation distance, and the phenomenon of flashover electric discharge occurs.Circuit windage yaw reclosing success rate is low, often causes the serious consequences such as wire electric arc burn, disconnected thigh, broken string.Power transmission circuit caused by windage is one of principal element affecting transmission line security of operation, and especially 500kV flashover of power transmission circuit caused by windage yaw Frequent Accidents, causes very large harm to transmission line security of operation.
Overhead transmission line long-time running, is subject to the impact of natural conditions climate change very large in the wild.When windage yaw occurs, generally follow the terrible weathers such as strong wind, thunderstorm movable, to fault, judge and search and cause difficulty.Common strick precaution modification measures is to install jumper string or heavy punch piece additional on the line conductor that windage yaw fault occurs at present, but wire its wind-deviation effect under these two kinds of modes are transformed is often undesirable.Still easily there is windage yaw tripping operation in the wire that first, installs jumper string additional; The second, heavy punch piece surface area is large, easily goes for a drive, and when strong wind blows to hammer leaf, causes windage yaw flashover.The 3rd, on wire, install additional after heavy punch piece, due to every of the heavy punch piece hundreds of kilogram that weighs, and wire is stressed according to designing requirement, there is certain higher limit, therefore to shaft tower, increase extra heavy burden, need to again check tower load, to shaft tower, can sacrifice design margin simultaneously, while causing strong wind, easily there is shaft tower impaired, when serious, there is the broken string of falling tower, caused than the more serious consequence of circuit windage yaw tripping operation, lost more than gain; Finally, the cost of heavy punch piece is high, transportation inconvenience, and improvement and installation cost is high.
Utility model content
The purpose of this utility model is to provide a kind of ultra-high-tension power transmission line wind-deviation rigid insulation drag-line, can effectively stop wire electric discharge to shaft tower under wind effect, avoids circuit windage yaw tripping operation, improves transmission line safety operation level.
The technical solution of the utility model is:
A kind of ultra-high-tension power transmission line wind-deviation rigid insulation drag-line, comprise barred body, barred body two ends are connected with respectively connection gold utensil, and barred body comprises the full skirt that is positioned at inner excellent core and is positioned at excellent core outside, full skirt is silicon rubber composite material, and excellent core is epoxy resin fiberglass leading-drawing rod.
Described drag-line is arranged on tower body, and the upper end of drag-line is connected to the inner side of tower body upper conductor hanging point, and the lower end of drag-line is connected on the tower body of conducting wire hanging point below, the lower end of drag-line be connected to tower body face and with vertical direction angle α be the scope of 0 ~ 60 degree.
When for strain tower, A phase, B phase, C phase three-phase conducting wire are arranged vertically; On strain tower, be provided with from top to bottom parallel upper, middle and lower cross-arm, the end, one end of upper cross-arm is conducting wire hanging point, and conducting wire hanging point is connected with strain insulator string and is connected to the wire on strain insulator string; The high-pressure side installation of drag-line upper end is in the position of upper cross-arm bottom, the high-pressure side installation of drag-line lower end with vertical direction drift angle, upper end α be in the residing scope in middle cross-arm top in the scope of 0 ~ 60 degree.
The high-pressure side gold utensil of second drag-line upper end is connected to the position of middle cross-arm bottom, and it is in the residing scope in lower cross-arm top in 0 ~ 60 scope of spending that the high-pressure side gold utensil of second drag-line lower end is connected to vertical direction drift angle, upper end α.
Article three, the high-pressure side installation of drag-line upper end is in the position of lower cross-arm bottom, and it is in the residing scope of tower body in 0 ~ 60 scope of spending that the high-pressure side gold utensil of the 3rd drag-line lower end is connected to vertical direction drift angle, upper end α.
When for tangent tower, A phase, B phase, C phase three-phase conducting wire horizontal arrangement; On tangent tower, be from left to right respectively left, center, right cross-arm, each phase cross-arm place is equipped with conducting wire hanging point, and each conducting wire hanging point is connected with suspension insulator and is connected to the wire on suspension insulator; Adopt four drag-lines, the high-pressure side installation of article one drag-line upper end is in the position of left horizontal stretcher bottom, and it is on the side direction tower body face in 0 ~ 60 scope of spending that the high-pressure side gold utensil of drag-line lower end is connected to vertical direction drift angle, upper end α; Second, third drag-line upper end symmetry is 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 vertical direction angle be that on the tower window face in the scope of 0 ~ 60 degree, second, third drag-line lower end symmetry is located at the both sides of the conducting wire hanging point of middle phase cross-arm; Article four, the high-pressure side gold utensil of drag-line upper end is connected to the position of right horizontal stretcher bottom, and it is on the side direction tower body face in 0 ~ 60 scope of spending that the high-pressure side gold utensil of drag-line lower end is connected to vertical direction drift angle, upper end α.
Advantage of the present utility model:
The first, can effectively stop wire deflection for shaft tower under wind effect, avoid circuit windage yaw tripping operation, improve transmission line safety operation level;
The second, shaft tower additionally bears a heavy burden minimum, does not need to carry out the verification of shaft tower load;
The 3rd, transformation is installed conveniently, only need on tower body, punch, conventional supporting connection gold utensil is installed;
The 4th, lightweight, convenient transportation; Cost is low, and cost performance is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of drag-line of the present utility model;
Fig. 2 is the schematic diagram that drag-line of the present utility model is installed at strain tower;
Fig. 3 is the schematic diagram that drag-line of the present utility model is installed at tangent tower.
Embodiment
The utility model is applied to easily to occur the ultra-high-tension power transmission line of all electric pressures of windage yaw, is especially applied to 500kV ultra-high-tension power transmission line.
As shown in Figure 1, drag-line 1 of the present utility model comprises barred body 12, and the two ends up and down of barred body 12 are connected with respectively high-pressure side gold utensil 11, and barred body 12 comprises full skirt 13 and excellent core 14, and barred body 12 top layers are insulation full skirts 13, and full skirt 13 is silicon rubber composite material.Rod core 14 is positioned at full skirt 13, and excellent core 14 is glass epoxy leading-drawing rod.High-pressure side gold utensil 11, for being connected with tower body, during connection, only need punch on tower body, and conventional supporting connection gold utensil is installed, easy to operate.
As shown in Figure 2, the single back line of 500kV double back strain tower of take describes as example, and A phase, B phase, C as shown are mutually three-phase conducting wire and are arranged vertically.The upper cross-arm 21 of strain tower, middle cross-arm 22, lower cross-arm 23 be arranged in parallel (cross-arm of strain tower 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 all connected with strain insulator string 4 and is connected to the wire 5 on strain insulator string 4.The high-pressure side gold utensil 11 of drag-line of the present utility model 1 upper end is arranged on the position of cross-arm 21 bottoms, 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) the residing scope in top.The drift angle of being partial to shaft tower while occurring due to windage yaw is being greater than 60 while spending, easily cause the insulation distance of itself and tower body inadequate, therefore, lower end can with vertical direction drift angle α be 0 ~ 60 degree scope in (in the scope of m shown in Fig. 2), while can select suitable position to install according to actual conditions.Take scheme in N shown in arrow be aweather example, when N aweather blows to wire 5, wire 5 is to tower body generation deflection (generation of windage yaw phenomenon), now, if when strong wind bad weather, may cause the air insulation distance between wire 5 and the tower body face at left horizontal stretcher 21 bottoms and tower body place inadequate, thereby windage yaw flashover fault occurs.Install after drag-line 1 of the present utility model, can find out, it lies across between wire and tower body, stops wire to continue to tower body direction deflection, thereby guarantees enough air insulation distances, prevents the generation of windage yaw flashover fault.Generally, apart from ground, more high wind speed is larger, and the probability that windage yaw occurs is larger, and therefore, the utility model is generally arranged on shaft tower the superiors cross-arm place.If there is monitoring to show, middle level and lower floor's cross-arm place wind speed are larger, and windage yaw trip accident easily occurs, and also can be arranged on middle cross-arm 22, lower cross-arm 23 places, according to actual conditions, determine, and mounting means is identical with upper cross-arm 21 places.
As shown in Figure 3, take 500kV tangent tower as example, A phase, B phase, C as shown are three-phase conducting wire horizontal arrangement mutually.The cross-arm of tangent tower comprises left horizontal stretcher 24, middle cross-arm 25, right horizontal stretcher 26.The present embodiment adopts four drag-lines 1.Each is all connected with strain insulator string 4 and is connected to the wire 5 on strain insulator string 4.
First drag-line 1 upper end of the present utility model is arranged on the position of left horizontal stretcher 24 bottoms, and near conducting wire hanging point place, lower end is connected on tower body place side direction tower body face 3, and with the drift angle α of vertical direction be within the scope of 0 ~ 60 degree, can select suitable position according to actual conditions.Can find out, install after drag-line 1 of the present utility model, the insulation distance to tower body when it can effectively guarantee wire to tower body direction deflection.While installing near B phase (middle phase) wire, because it can windage yaw occur to both sides, on two tower window faces 7 of tower body, all should install, 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, the lower end of second, third two drag-lines 1 on tower window face 7 and with vertical direction angle α be 0 ~ 60 degree scope in (in the scope of n shown in Fig. 3) installation.It is to install on the tower window face 7 in 0 ~ 60 scope of spending that second, third drag-line 1 lower end is connected on tower body face 7 and with vertical direction angle, and second, third drag-line 1 lower end symmetry is located at the both sides of the conducting wire hanging point of middle cross-arm 25.
The C phase conductor of right horizontal stretcher 26 and A phase conductor are symmetrical, can be with reference to the mounting means of A phase conductor.
The A phase of above-described strain tower or tangent tower and the position of C phase conductor can exchange as required.
In sum, the utility model is simple for structure, be skillfully constructed, and can effectively prevent the generation of windage yaw flashover fault, guarantees transmission line safe operation.
Claims (6)
1. a ultra-high-tension power transmission line wind-deviation rigid insulation drag-line, it is characterized in that: comprise barred body, barred body two ends are connected with respectively connection gold utensil, barred body comprises the full skirt that is positioned at inner excellent core and is positioned at excellent core outside, full skirt is silicon rubber composite material, and excellent core is epoxy resin fiberglass leading-drawing rod.
2. ultra-high-tension power transmission line wind-deviation rigid insulation drag-line according to claim 1, it is characterized in that: 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 lower end of drag-line is connected on the tower body of conducting wire hanging point below, the lower end of drag-line be connected to tower body face and with vertical direction angle α be the scope of 0 ~ 60 degree.
3. ultra-high-tension power transmission line wind-deviation rigid insulation drag-line according to claim 2, is characterized in that: when for strain tower, A phase, B phase, C phase three-phase conducting wire are arranged vertically; On strain tower, be provided with from top to bottom parallel upper, middle and lower cross-arm, the end, one end of upper cross-arm is conducting wire hanging point, and conducting wire hanging point is connected with strain insulator string and is connected to the wire on strain insulator string; The high-pressure side installation of drag-line upper end is in the position of upper cross-arm bottom, the high-pressure side installation of drag-line lower end with vertical direction drift angle, upper end α be in the residing scope in middle cross-arm top in the scope of 0 ~ 60 degree.
4. ultra-high-tension power transmission line wind-deviation rigid insulation drag-line according to claim 3, it is characterized in that: the high-pressure side gold utensil of second drag-line upper end is connected to the position of middle cross-arm bottom, it is in the residing scope in lower cross-arm top in 0 ~ 60 scope of spending that the high-pressure side gold utensil of second drag-line lower end is connected to vertical direction drift angle, upper end α.
5. ultra-high-tension power transmission line wind-deviation rigid insulation drag-line according to claim 4, it is characterized in that: the high-pressure side installation of the 3rd drag-line upper end is in the position of lower cross-arm bottom, and it is in the residing scope of tower body in 0 ~ 60 scope of spending that the high-pressure side gold utensil of the 3rd drag-line lower end is connected to vertical direction drift angle, upper end α.
6. ultra-high-tension power transmission line wind-deviation rigid insulation drag-line according to claim 2, is characterized in that: when for tangent tower, and A phase, B phase, C phase three-phase conducting wire horizontal arrangement; On tangent tower, be from left to right respectively left, center, right cross-arm, each phase cross-arm place is equipped with conducting wire hanging point, and each conducting wire hanging point is connected with suspension insulator and is connected to the wire on suspension insulator; Adopt four drag-lines, the high-pressure side installation of article one drag-line upper end is in the position of left horizontal stretcher bottom, and it is on the side direction tower body face in 0 ~ 60 scope of spending that the high-pressure side gold utensil of drag-line lower end is connected to vertical direction drift angle, upper end α; Second, third drag-line upper end symmetry is 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 vertical direction angle be that on the tower window face in the scope of 0 ~ 60 degree, second, third drag-line lower end symmetry is located at the both sides of the conducting wire hanging point of middle phase cross-arm; Article four, the high-pressure side gold utensil of drag-line upper end is connected to the position of right horizontal stretcher bottom, and it is on the side direction tower body face in 0 ~ 60 scope of spending that the high-pressure side gold utensil of drag-line lower end is connected to vertical direction drift angle, upper end α.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320679638.3U CN203536909U (en) | 2013-10-31 | 2013-10-31 | High voltage power transmission line wind deviation-resistant rigid insulation inhaul cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320679638.3U CN203536909U (en) | 2013-10-31 | 2013-10-31 | High voltage power transmission line wind deviation-resistant rigid insulation inhaul cable |
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| Publication Number | Publication Date |
|---|---|
| CN203536909U true CN203536909U (en) | 2014-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320679638.3U Expired - Lifetime CN203536909U (en) | 2013-10-31 | 2013-10-31 | High voltage power transmission line wind deviation-resistant rigid insulation inhaul cable |
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| Country | Link |
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| CN (1) | CN203536909U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545779A (en) * | 2013-10-31 | 2014-01-29 | 国家电网公司 | Windage yaw preventing rigid insulating inhaul cable of high-voltage power transmission line and installation method thereof |
| CN105464446A (en) * | 2015-11-18 | 2016-04-06 | 中国电力科学研究院 | Double-loop power transmission tower |
| CN111244864A (en) * | 2020-04-14 | 2020-06-05 | 华北电力大学（保定） | Self-adaptive windage yaw prevention device for suspension insulator string |
-
2013
- 2013-10-31 CN CN201320679638.3U patent/CN203536909U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545779A (en) * | 2013-10-31 | 2014-01-29 | 国家电网公司 | Windage yaw preventing rigid insulating inhaul cable of high-voltage power transmission line and installation method thereof |
| CN103545779B (en) * | 2013-10-31 | 2016-05-25 | 国家电网公司 | A kind of installation method of ultra-high-tension power transmission line wind-deviation rigid insulation drag-line |
| CN105464446A (en) * | 2015-11-18 | 2016-04-06 | 中国电力科学研究院 | Double-loop power transmission tower |
| CN111244864A (en) * | 2020-04-14 | 2020-06-05 | 华北电力大学（保定） | Self-adaptive windage yaw prevention device for suspension insulator string |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140409 |