CN101299522A - Method for deicing aerial power line with load - Google Patents
Method for deicing aerial power line with load Download PDFInfo
- Publication number
- CN101299522A CN101299522A CNA2008100185958A CN200810018595A CN101299522A CN 101299522 A CN101299522 A CN 101299522A CN A2008100185958 A CNA2008100185958 A CN A2008100185958A CN 200810018595 A CN200810018595 A CN 200810018595A CN 101299522 A CN101299522 A CN 101299522A
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- Prior art keywords
- switch
- power line
- electrode
- ice
- pneumatic element
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 7
- 238000002844 melting Methods 0.000 claims abstract description 11
- 239000012212 insulator Substances 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 5
- 230000008859 change Effects 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 13
- 230000004888 barrier function Effects 0.000 claims description 9
- 239000004411 aluminium Substances 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 230000005540 biological transmission Effects 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 239000004698 Polyethylene Substances 0.000 claims description 3
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 3
- 238000004132 cross linking Methods 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- -1 polyethylene Polymers 0.000 claims description 3
- 229920000573 polyethylene Polymers 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000011701 zinc Substances 0.000 claims description 3
- 229910052725 zinc Inorganic materials 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 2
- 239000004677 Nylon Substances 0.000 claims description 2
- 230000008901 benefit Effects 0.000 claims description 2
- 229920003020 cross-linked polyethylene Polymers 0.000 claims description 2
- 239000004703 cross-linked polyethylene Substances 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 2
- 241000272165 Charadriidae Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
Provided is a method which can change the carrying current section of the power line to increase the line loss to cause the wire heat and reach the aim of ice melting through a switch in operation, wherein the wire is divided into three layers of A, B, D, and the insulating layer C is used to divide the A, B and D; the switch K arranged on the insulator string is used to switch the carrying current section of the power line. The key to realize the technical method is to provide a ice melting overhead power line and a diverter switch.
Description
Affiliated technical field
The present invention is a kind of overhead power transmission line and the diverter switch that is installed on the insulator string of applying hierarchical insulation, realizes the method for deicing aerial power line with load.Be to belong to the high-tension transmission technical field.
Background technology
The ice-melt of high-tension transmission circuit, generally all under situation out of service, carry out, and having only a kind of technology of short circuit ice-melt to use at home in maturation, the icing of built on stilts high-tension transmission circuit threatens very big to the power system security reliability service Just because of this.
Summary of the invention
At this technical problem, propose a kind of the switching by switch in when operation and change power line current-carrying sectional area and make that increasing line loss allows the lead heating reach the purpose of ice-melt, allow this method have the practical value key is that band carries an ice-melting elevated power line and a diverter switch.Referring to Figure of description 1, accompanying drawing 2, A is the tension force load bearing core, with zinc-coated wire or carbon fibre make, B is inner conductor, with aluminium/aluminium alloy or copper material, C insulating barrier, with weather-proof silicon rubber or weather-proof crosslinked polyethylene material material, D outer contact, with aluminium or copper material, so because of A, B and D are that equipotential insulating barrier C has 1.2mm thick, withstand voltage greater than 3500 volts of power frequencies.Referring to Figure of description 3, this diverter switch is directly installed on the insulator string, also can use Hydraulic Elements console switch closed and disconnected with compressed air by pneumatic element, can save the complicated mechanical operating mechanism with the compressed air console switch, it is strict that the earth insulating requirements is implemented the benefit of being not difficult of also becoming is that to make installation cost low, because pneumatic or hydraulic operation can come transmission medium with the high-strength nylon pipe, pneumatic element can be air-leg or Pneumatic motor assembly, because of only bearing the pressure drop of ice melting current on power line in the two poles of the earth of switch, this magnitude of voltage can design at 3500 volts, so as long as use cutter formula switch, switch is installed on the insulator string 1, the 3rd, switch bracket, electrode 2 is housed on the switch bracket 3, collets 7, pneumatic element 6, power line terminal carrying guide wheel 8, the switch moving knife utmost point 4 and electrode 2 connect, the jaw of the switch moving knife utmost point 4 and pneumatic element 6 connects, stationary electrode 5 and collets 7 are fixing, meet lead A on the electrode 2, B, electrode 5 meets lead D, the 12nd, the switch module closed box is used for anti-sealing and aqueous vapor to enter and switch occurs and freeze.When the power delivery on first ground to second, on first ground A, B, D is linked together, on second ground A, B is linked together, D is by switch and A, B connects or disconnects, switch connection during normal the transmission of electricity, A, B, D is that one is the same with traditional power line, when the needs ice-melt, cut-off switch, A, B walks overcurrent, D does not have electric current to pass by, by rational management or load idle ice melting current and make A, the line loss of B increases greatly, thereby realizes ice-melt, the power line specification that provides according to Figure of description 1, A, D.C. resistance after the B parallel connection when subzero 5 spend is 0.1480 Ω/KM, A, B, resistance after the D parallel connection is 0.0567 Ω/KM.Because of A, B and D are equipotentials, so the withstand voltage just voltage drop at circuit two ends of insulating barrier reaches maximum during (electric current * conductor resistance) this voltage drop ice-melt work.
Description of drawings
Accompanying drawing 1 is a kind of cross-sectional area 437mm
2Band carry ice-melting elevated power line, tension force carrying steel core A, 90mm
2, inner conductor cross section B, 159mm
2, insulating barrier C, be withstand voltage 3500 volts of power frequencies, outer contact D, the 278mm of being not less than of 1.2mm with weather-proof cross-linking polyethylene materials skin thickness
2, monofilament is the circle aluminium wire.
Accompanying drawing 3, the 1st, insulator string, the 2nd, electrode, 3 switch brackets, 4 moving electrodes, the 5th, electrode, 6 pneumatic or Hydraulic Elements, 7 collets, 8 carrying guide wheels, the carrying guide wheel by the metal wheel carrier inlay outward the ceramic annulus that has arc groove constitute, the 12nd, the switch module closed box.
Embodiment
Referring to Figure of description 1, the power line of this specification, A, D.C. resistance after the B parallel connection when-5 spend is 0.1480 Ω/KM, A, B, resistance after the D parallel connection is 0.0567 Ω/KM, A, B, the D 200A electric current of passing by when in parallel, line loss is 2268W/KM, A, the B 200A electric current line loss 5920W/KM that passes by when in parallel calculates by the heat dissipation formula, during the line loss of 5920W/KM, ambient temperature is greater than-5 degree, the conductive line surfaces temperature is greater than zero degree, can suitably strengthen the electric current of the lead of passing by as the ice-melt poor effect, during the 200A current-carrying, 30V/KM falls in the lead both end voltage, and the ice-melt switch can be installed a place every 75KM like this.
Claims (3)
1, proposition is a kind of makes the increase line loss allow the lead heating reach the purpose of ice-melt by switch switching change power line current-carrying sectional area when operation, and allow this method have the practical value key is to be with year an ice-melting elevated power line and a diverter switch.Band carries ice-melting elevated power line, A is the tension force load bearing core, with zinc-coated wire or carbon fibre make, B is inner conductor, with aluminium/aluminium alloy or copper material, C insulating barrier, with weather-proof silicon rubber or weather-proof cross-linking polyethylene materials, D outer contact, with aluminium or copper material, so because of A, B and D are that equipotential insulating barrier C has 1.2mm thick, withstand voltage greater than 3500 volts of power frequencies.This diverter switch is directly installed on the insulator string, also can use Hydraulic Elements console switch closed and disconnected with compressed air by pneumatic element, can save the complicated mechanical operating mechanism with the compressed air console switch, it is strict that the earth insulating requirements is implemented the benefit of being not difficult of also becoming is that to make installation cost low, because pneumatic or hydraulic operation can come transmission medium with the high-strength nylon pipe, pneumatic element can be air-leg or Pneumatic motor assembly, only bear the pressure drop of ice melting current on power line because of the two poles of the earth of switch, this magnitude of voltage can design at 3500 volts.So as long as use cutter formula switch, switch is installed on the insulator string 1, the 3rd, switch bracket, electrode 2, collets 7, pneumatic element 6, power line terminal carrying guide wheel 8 are housed on the switch bracket 3, and the switch moving knife utmost point 4 and electrode 2 connect, and the jaw of the switch moving knife utmost point 4 and pneumatic element 6 connects, stationary electrode 5 and collets 7 are fixing, meet lead A, B on the electrode 2, electrode 5 meets lead D, the 12nd, and the switch module closed box is used for anti-sealing and aqueous vapor to enter and switch occurs and freeze.
2, according to claim 1, the structure of ice-melting elevated power line is: A is the tension force load bearing core, with zinc-coated wire or carbon fibre make, B is inner conductor, with aluminium or copper material, C insulating barrier, with weather-proof silicon rubber or weather-proof crosslinked polyethylene material material, D outer contact, with aluminium or copper material, so because of A, B and D are that equipotential insulating barrier C has 1.2mm thick, withstand voltage greater than 3500 volts of power frequencies.
3, according to claim 1, this diverter switch is directly installed on the insulator string, also can use Hydraulic Elements console switch closed and disconnected with compressed air by pneumatic element, can save the complicated mechanical operating mechanism with the compressed air console switch, strict the earth insulating requirements is implemented also to become be not difficult, switch is installed on the insulator string 1, the 3rd, switch bracket, electrode 2 is housed on the switch bracket 3, collets 7, pneumatic element 6, power line terminal carrying guide wheel 8, the switch moving knife utmost point 4 and electrode 2 connect, the jaw of the switch moving knife utmost point 4 and pneumatic element 6 connects, stationary electrode 5 and collets 7 are fixing, meet lead A on the electrode 2, B, electrode 5 meets lead D, the 12nd, the switch module closed box is used for anti-sealing and aqueous vapor to enter and switch occurs and freeze.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100185958A CN101299522A (en) | 2008-02-29 | 2008-02-29 | Method for deicing aerial power line with load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100185958A CN101299522A (en) | 2008-02-29 | 2008-02-29 | Method for deicing aerial power line with load |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101299522A true CN101299522A (en) | 2008-11-05 |
Family
ID=40079253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100185958A Pending CN101299522A (en) | 2008-02-29 | 2008-02-29 | Method for deicing aerial power line with load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101299522A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405516A (en) * | 2015-12-08 | 2016-03-16 | 江苏荣宜电缆有限公司 | Self-bearing easily-recognized tensile type metro rail traffic cable |
| CN113708327A (en) * | 2021-08-18 | 2021-11-26 | 海南电网有限责任公司海口供电局 | Device for realizing ice melting without power outage, line conductor and ice melting method |
-
2008
- 2008-02-29 CN CNA2008100185958A patent/CN101299522A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105405516A (en) * | 2015-12-08 | 2016-03-16 | 江苏荣宜电缆有限公司 | Self-bearing easily-recognized tensile type metro rail traffic cable |
| CN113708327A (en) * | 2021-08-18 | 2021-11-26 | 海南电网有限责任公司海口供电局 | Device for realizing ice melting without power outage, line conductor and ice melting method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20081105 |