CN103997007B - The inclined to one side arc protection device of a kind of power transmission line wind - Google Patents
The inclined to one side arc protection device of a kind of power transmission line wind Download PDFInfo
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- CN103997007B CN103997007B CN201410218835.4A CN201410218835A CN103997007B CN 103997007 B CN103997007 B CN 103997007B CN 201410218835 A CN201410218835 A CN 201410218835A CN 103997007 B CN103997007 B CN 103997007B
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- gold utensil
- transmission line
- insulating sheath
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 37
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000010931 gold Substances 0.000 claims abstract description 42
- 229910052737 gold Inorganic materials 0.000 claims abstract description 42
- 230000001681 protective effect Effects 0.000 claims abstract description 18
- 239000012212 insulator Substances 0.000 claims description 18
- 239000004020 conductor Substances 0.000 claims description 13
- 230000004995 multiple fission Effects 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 5
- 230000005684 electric field Effects 0.000 abstract description 5
- 230000032683 aging Effects 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 abstract description 2
- 238000006056 electrooxidation reaction Methods 0.000 abstract description 2
- 230000035882 stress Effects 0.000 description 10
- 239000002131 composite material Substances 0.000 description 6
- 230000005611 electricity Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001085205 Prenanthella exigua Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 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
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Abstract
The invention discloses the inclined to one side arc protection device of a kind of power transmission line wind, the gold utensil that comprises wire, is connected with wire, electric transmission line isolator, gold utensil protective device and be positioned at gold ambilateral two conductive wire protection apparatus; Conductive wire protection apparatus is arranged on the outside of wire and is connected with gold utensil protective device, and gold utensil protective device is arranged on the outside of gold utensil and is connected with electric transmission line isolator. The present invention is directed between wire and shaft tower, because high wind causes the not enough air breakdown that causes of insulation distance, the most direct reason of this windage yaw flashover generation of electric discharge occurs, increase electric insulation intensity between wire and shaft tower. The present invention has effectively eliminated between wire and insulating sheath, electric field distortion problem between gold utensil and insulating sheath box, avoids local field strength too high and cause wind-deviation flashover effect greatly to decline. The present invention effectively stops moisture content to enter insulating sheath and insulating sheath box, reduces wire and hardware corona odds, has eliminated the aging problem of device electrochemical corrosion.
Description
Technical field
The present invention relates to the inclined to one side arc protection device of a kind of power transmission line wind, belong to T & D TechnologyField.
Background technology
In recent years, be accompanied by increasing gradually of various diastrous weathers, particularly such as squall line windEtc. the appearance of exceedingly odious microclimate, flashover of power transmission circuit caused by windage yaw problem happens occasionally. There is windThe circuit of flashover has the shaft tower of single, double loop line partially; Tower has anchor support and tangent tower, anchor supportFocus mostly on and in wire jumper, shaft tower framework is discharged, tangent tower focuses mostly on and in wire or gold utensil, tower arm is putElectricity. When windage yaw flashover, generation area has high wind and with torrential rain or hail more; Shaft tower electric dischargePoint has obvious electric arc to burn trace, and discharge path is clear; Windage yaw flashover mostly occurs under operating voltage,Generally can not successful reclosing, thus line outage caused, have a strong impact on the reliability of power supply,Cause very large economic loss. In addition, in the majority according to statistics tangent tower generation windage yaw tripping operation, strain insulatorTower is relatively less.
Windage yaw flashover reason mainly can be summarized as following several aspect: windage yaw flashover is the most directReason is because high wind causes the not enough air breakdown that causes of insulation distance between wire and shaft towerDischarge. Conventional insulators all adopts conventional porcelain, glass, is exceeding the situation of design wind speedLower insulator chain tilts to shaft tower direction, has reduced the air gap distance of wire and steel tower, whenWhile requirement, just there is flashover in the minimum voltage that air gap distance can not meet electric discharge. In addition, lineWindage yaw check is not carried out after adjusting and climbing employing composite insulator in road, because composite insulator deadweight is gentlierMake to add that weight amplitude of fluctuation in the time of windage yaw greatly also can cause electric discharge.
Wind-deviation technical measures mainly adopt following at present: adopt duplex " V " type string 1.Configuration: be the configuration of duplex " V " type string by the falsification of jumper string simply connected, improve insulator and resist by forceThe ability of wind, this method is applicable to newly-built circuit, but is not suitable for reconstruction of old circuit; 2. peaceDress weight: weight is installed, by increasing the weight limits insulator of insulator in insulator lower endSwing reach the object that prevents windage yaw flashover. Adopt installation weight to improve insulator chain windage yawAlthough have certain effect, can not really control the windage yaw of insulator chain. 3. Installation of New Type is windproofComposite insulator partially: change the mounting means of traditional product into " cantilevered " by " hinge type ",Become hard support from swing, make composite insulator change " quiet " into by " moving ". This method peopleFor forcing fixing composite insulator position, under high wind effect, composite insulator can laterally be cutPower, can accelerate core rod of insulator mechanical fatigue under long term, thereby causes disconnected string accident.
Publication number is that " power transmission line wind dodges partially for the utility model patent case of CN202978174UNetwork device ", on 06 05th, 2013 publication date, a kind of power transmission line wind is proposed inclined to one sideFlashover device, the outside of suspension clamp clamps the coated cover of high pressure resistant insulation, and high pressure resistant insulation is coatedBe covered with centre bore, the left and right high pressure resistant insulation sheath of transmission pressure is fixed respectively at the two ends of centre bore,The centre bore of the coated cover of the left and right high pressure resistant insulation sheath of described transmission pressure and high pressure resistant insulationInside be installed with transmission pressure. This mode limitation is: in this device, insulating sheath directly exposesAt wire burr, tip and connect the high field intensity region that the wedge angle region etc. of gold utensil forms,Under long term, can accelerate insulating materials aging; In addition, this device fails to ensure conduction and sheathFit tightly, can cause moisture deeply, accelerate the Electrochemical Ageing of insulating materials.
Summary of the invention
The deficiency existing for prior art, the object of the invention is to provide one and can effectively reducesFlashover of power transmission circuit caused by windage yaw occurrence probability, and there is the transmission line of electricity of wire and gold utensil defencive functionWind-deviation arc protection device.
To achieve these goals, the present invention realizes by the following technical solutions:
The inclined to one side arc protection device of a kind of power transmission line wind of the present invention, comprises wire and wireThe gold utensil being connected and electric transmission line isolator, the present invention also comprises gold utensil protective device and is positioned atAmbilateral two conductive wire protection apparatus of gold; Conductive wire protection apparatus be arranged on the outside of wire and withGold utensil protective device is connected, and gold utensil protective device is arranged on outside and and the transmission line of electricity of gold utensilInsulator is connected.
Above-mentioned conductive wire protection apparatus comprises stress cone, is wrapped in wire outside for eliminating wire hairThe semi-conductive tape of thorn electric field distortion, be arranged on semi-conductive tape outside insulating sheath, be filled in halfWaterstop between conductive strips and insulating sheath and all pressures that are arranged on insulating sheath outboard endRing; Grading ring is by stress cone and semi-conductive tape electrical connection.
Above-mentioned gold utensil protective device comprise stress cone, waterstop and be arranged on two insulating sheaths itBetween insulating sheath box; Gold utensil is by stress cone and semi-conductive tape electrical connection, for eliminatingState the distortion of gold utensil tip region field intensity; Insulating sheath box and gold utensil are all by waterstop and power transmission lineRoad insulator is connected.
Above-mentioned insulating sheath is realized seamless company by room temperature vulcanized silicone rubber and insulating sheath boxConnect.
Above-mentioned wire is single conductor, two-conductor line or multiple fission conductor.
The thickness of above-mentioned semi-conductive tape is 0.2-3.0mm.
The thickness of above-mentioned waterstop is 0.5-2mm.
The thickness of above-mentioned insulating sheath is 5-15mm, and length is 2-10m.
The thickness of above-mentioned insulating sheath box is 5-15mm.
The present invention is directed between wire and shaft tower and cause because high wind causes insulation distance deficiencyThere is this windage yaw flashover of electric discharge the most direct reason occur in air breakdown, increases wire and shaft towerBetween electric insulation intensity; The windage yaw protective device of inventing is lightweight, can effectively avoid adding heavyThe shaft tower problems of mechanical strength that hammer, windage yaw preventing composite insulator bring. The present invention effectively eliminatesElectric field distortion problem between wire and insulating sheath, between gold utensil and insulating sheath box, avoid officePortion's field intensity is too high and cause wind-deviation flashover effect greatly to decline. The present invention effectively stops moisture content to enterEnter insulating sheath and insulating sheath box, reduce wire and hardware corona odds, eliminatedThe aging problem of device electrochemical corrosion.
Brief description of the drawings
Fig. 1 is the inclined to one side arc protection apparatus structure of power transmission line wind of the present invention schematic diagram;
Fig. 2 is transmission line of electricity single conductor wind-deviation arc protection device field trial of the present inventionFigure;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is transmission line of electricity conductors on quad bundled wind-deviation arc protection device of the present invention sceneTest Drawing;
Fig. 5 is the left view of Fig. 4.
In figure, each label is as follows:
1 is that grading ring, 2 is for stress cone, 3 is for insulating sheath, 4 is for waterstop, 5 is for partly leadingElectricity band, 6 is that wire, 7 is that electric transmission line isolator, 8 is that gold utensil, 9 is insulating sheath box.
Detailed description of the invention
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to brightWhite understanding, below in conjunction with detailed description of the invention, further sets forth the present invention.
Referring to Fig. 1, the present invention proposes the inclined to one side arc protection device of a kind of power transmission line wind, bagDraw together conductive wire protection apparatus and gold utensil protective device.
Wherein, conductive wire protection apparatus comprise semi-conductive tape 5, waterstop 4, insulating sheath 3,Stress cone 2 and grading ring 1.
Wherein, gold utensil protective device comprises waterstop 4, stress cone 2 and insulating sheath box 9.
Conductive wire protection apparatus is wrapped in wire 6 outsides and is connected with gold utensil protective device, and gold utensil is protectedProtection unit is wrapped in gold utensil 8 outsides and is connected with electric transmission line isolator 7. Conductive wire protection apparatusBe embedded into gold utensil protective device inside, and by the tight seamless connection of room temperature vulcanized silicone rubber.
In conductive wire protection apparatus, semi-conductive tape 5 is closely wrapped in wire 6 outsides to eliminate wire 6Burr electric field distortion, semi-conductive tape 5 thickness are 0.2-3.0mm.
Waterstop 4 is closely filled between semi-conductive tape 5 and insulating sheath 3 to stop rainwater etc.Natural precipitation enters into conductive wire protection apparatus, and waterstop 4 thickness are 0.5-2mm.
Insulating sheath 3 is closely wrapped in waterstop 4 outsides, wire 6 while generation to strengthen windage yawWith electric power line pole tower gap electric insulation level, insulating sheath 3 thickness are 5-15mm, longDegree is 2-10m.
For eliminating electric field distortion between semi-conductive tape 5 end wires 6 and insulating sheath 3, all pressRing 1 is arranged on insulating sheath 3 outboard end, and electric by stress cone 2 and semi-conductive tape 5Be connected.
In gold utensil protective device, insulating sheath box 9 is wrapped in gold utensil 8 outsides, and its thickness is5-15mm. Stress cone 2 is electrically connected semi-conductive tape 5 and gold utensil 8, to eliminate gold utensil 8 tipsRegion field intensity distortion, reduces insulating sheath box 9 electric chance of breakdown.
The wire 6 adopting in the present invention can be single conductor (referring to Fig. 2, Fig. 3), two-conductor lineOr multiple fission conductor, Fig. 4 and Fig. 5 are conductors on quad bundled.
In the present embodiment, the thickness of the insulating sheath 3 of wire 6 is 10mm, gold utensil 8 absolutelyEdge sheath kit 9 thickness are 10mm. Press respectively with all by stress cone 2 at semi-conductive tape 5 two endsRing 1, gold utensil 8 are connected, to reduce electric field distortion.
Test is found: to 500kV wire, adopt the inclined to one side flashover of power transmission line wind of the present inventionAfter protective device, the distance that generation the air gap punctures is 0.76-0.80m; And do not take thisThe bare conductor of bright device, the distance that generation the air gap punctures is 0.90-1.00m. So, logicalCross and increase the inclined to one side arc protection device of power transmission line wind of the present invention, can effectively improve windage yaw flashoverOccur apart from 0.14-0.20m.
More than show and described general principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should understand, and the present invention is not restricted to the described embodiments, above-mentioned realityExecute in example and description, describe principle of the present invention is just described, do not departing from spirit of the present inventionUnder the prerequisite of scope, the present invention also has various changes and modifications, and these changes and improvements allFall in the claimed scope of the invention. The claimed scope of the present invention is wanted by appended rightAsk book and equivalent thereof to define.
Claims (8)
1. the inclined to one side arc protection device of power transmission line wind, comprises wire (6) and wire(6) gold utensil (8) being connected and electric transmission line isolator (7), is characterized in that,
Also comprise gold utensil protective device and two conductive wire protection apparatus that are positioned at gold utensil (8) both sides;
Described conductive wire protection apparatus be arranged on the outside of wire (6) and with gold utensil protective device phaseConnect, described gold utensil protective device is arranged on the outside of gold utensil (8) and insulate with transmission line of electricitySon (7) is connected;
Described conductive wire protection apparatus comprises stress cone (2), is wrapped in half of wire (6) outsideConductive strips (5), be arranged on semi-conductive tape (5) outside insulating sheath (3), be filled in halfWaterstop (4) between conductive strips (5) and insulating sheath (3) and be arranged on insulating sheath(3) grading ring of outboard end (1);
Described grading ring (1) is by stress cone (2) and semi-conductive tape (5) electrical connection.
2. the inclined to one side arc protection device of power transmission line wind according to claim 1, its spyLevy and be,
Described gold utensil protective device comprises stress cone (2), waterstop (4) and is arranged on twoInsulating sheath box (9) between insulating sheath (3);
Described gold utensil (8) is by stress cone (2) and semi-conductive tape (5) electrical connection;
Described insulating sheath box (9) and gold utensil (8) are all by waterstop (4) and power transmission lineRoad insulator (7) is connected.
3. the inclined to one side arc protection device of power transmission line wind according to claim 2, its spyLevy and be,
Described insulating sheath (3) is seamless by room temperature vulcanized silicone rubber and insulating sheath box (9)Gap connects.
4. protect according to the inclined to one side flashover of the power transmission line wind described in claims 1 to 3 any oneProtection unit, is characterized in that,
Described wire (6) is single conductor, two-conductor line or multiple fission conductor.
5. protect according to the inclined to one side flashover of the power transmission line wind described in claims 1 to 3 any oneProtection unit, is characterized in that,
The thickness of described semi-conductive tape (5) is 0.2-3.0mm.
6. protect according to the inclined to one side flashover of the power transmission line wind described in claims 1 to 3 any oneProtection unit, is characterized in that,
The thickness of described waterstop (4) is 0.5-2mm.
7. protect according to the inclined to one side flashover of the power transmission line wind described in claims 1 to 3 any oneProtection unit, is characterized in that,
The thickness of described insulating sheath (3) is 5-15mm, and length is 2-10m.
8. according to the inclined to one side arc protection device of the power transmission line wind described in claim 2 or 3,It is characterized in that,
The thickness of described insulating sheath box (9) is 5-15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410218835.4A CN103997007B (en) | 2014-05-22 | 2014-05-22 | The inclined to one side arc protection device of a kind of power transmission line wind |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410218835.4A CN103997007B (en) | 2014-05-22 | 2014-05-22 | The inclined to one side arc protection device of a kind of power transmission line wind |
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| CN103997007A CN103997007A (en) | 2014-08-20 |
| CN103997007B true CN103997007B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410218835.4A Active CN103997007B (en) | 2014-05-22 | 2014-05-22 | The inclined to one side arc protection device of a kind of power transmission line wind |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104658720A (en) * | 2015-02-14 | 2015-05-27 | 清华大学深圳研究生院 | Method and device for improving pollution flashover performance of suspension insulator |
| CN106291298B (en) * | 2016-08-26 | 2023-04-25 | 湖北省超能电力有限责任公司 | Test model for simulating wind deflection interphase flashover of single-wire transmission line and application method |
| CN107230535A (en) * | 2017-04-21 | 2017-10-03 | 河钢股份有限公司承德分公司 | A kind of antifouling work method of Voltage for Insulators on HV Lines |
| CN111785419A (en) * | 2020-08-10 | 2020-10-16 | 广州麦科凌电力装备有限公司 | Novel jumper cable free of jumper insulator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0378413A (en) * | 1989-08-18 | 1991-04-03 | Hitachi Cable Ltd | Low corona noise type low wind noise electric wire |
| JP2001238336A (en) * | 2000-02-22 | 2001-08-31 | Furukawa Electric Co Ltd:The | Apparatus for reducing corona noise in multiconductor transmission line |
| CN200953258Y (en) * | 2006-07-04 | 2007-09-26 | 沈阳汇成电缆有限公司 | 500KV and below ultrahigh voltage cross-linked longitudinal waterproof cable |
| CN201829903U (en) * | 2010-10-29 | 2011-05-11 | 山西省电力公司晋中供电分公司 | Weighting block wind drift preventing device for single wire clips of power transmission line |
| CN202978174U (en) * | 2012-12-21 | 2013-06-05 | 河北硅谷化工有限公司 | Windage yaw flashover preventing device of transmission lines |
| CN203951135U (en) * | 2014-05-22 | 2014-11-19 | 国家电网公司 | The inclined to one side arc protection device of a kind of power transmission line wind |
-
2014
- 2014-05-22 CN CN201410218835.4A patent/CN103997007B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0378413A (en) * | 1989-08-18 | 1991-04-03 | Hitachi Cable Ltd | Low corona noise type low wind noise electric wire |
| JP2001238336A (en) * | 2000-02-22 | 2001-08-31 | Furukawa Electric Co Ltd:The | Apparatus for reducing corona noise in multiconductor transmission line |
| CN200953258Y (en) * | 2006-07-04 | 2007-09-26 | 沈阳汇成电缆有限公司 | 500KV and below ultrahigh voltage cross-linked longitudinal waterproof cable |
| CN201829903U (en) * | 2010-10-29 | 2011-05-11 | 山西省电力公司晋中供电分公司 | Weighting block wind drift preventing device for single wire clips of power transmission line |
| CN202978174U (en) * | 2012-12-21 | 2013-06-05 | 河北硅谷化工有限公司 | Windage yaw flashover preventing device of transmission lines |
| CN203951135U (en) * | 2014-05-22 | 2014-11-19 | 国家电网公司 | The inclined to one side arc protection device of a kind of power transmission line wind |
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| CN103997007A (en) | 2014-08-20 |
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