CN203278165U - 10kV overhead distribution line arrester arrangement structure - Google Patents
10kV overhead distribution line arrester arrangement structure Download PDFInfo
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- CN203278165U CN203278165U CN 201320366579 CN201320366579U CN203278165U CN 203278165 U CN203278165 U CN 203278165U CN 201320366579 CN201320366579 CN 201320366579 CN 201320366579 U CN201320366579 U CN 201320366579U CN 203278165 U CN203278165 U CN 203278165U
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Abstract
The utility model discloses a 10kV overhead distribution line arrester arrangement structure. The 10kV overhead distribution line arrester arrangement structure comprises a cement tower, line arresters, line insulators, a transmission wire, a down conductor and a tower grounded resistor, wherein the line arresters and the line insulators are connected with each other and arranged on the cement tower; the high-voltage end of each line arrester is connected with the transmission wire, and the grounded end of each line arrester is connected with the down conductor; the down conductor is connected with the tower grounded resistor through galvanized round steel or flat steel and then is grounded. By virtue of the 10kV overhead distribution line arrester arrangement structure, the lightning protection performance and operation safety of a distribution line can be reliably ensured; meanwhile, the line arresters decrease to the greatest extent, the economic investment in design and construction of the distribution line is reduced, and thus the optimum technology economy of the lightning protection design of the overhead distribution line is realized.
Description
Technical field
The utility model relates to a kind of 10kV distribution overhead line lightning arrester arrangement.
Background technology
The lightning overvoltage that occurs on distribution line has two kinds of forms: direct lightning strike overvoltage and thunder and lightning induction voltage.For the 10kV distribution line, the experimental results shows that thunder and lightning induction voltage has become the main cause that circuit damage to crops caused by thunder accident increases.At present, comprise two aspects for the protection of distribution overhead line thunder and lightning induction voltage, the one, protect from the angle of restriction thunder and lightning induction voltage; The 2nd, protect from the angle that reduces thunder and lightning induction voltage.Protect from the angle of restriction thunder and lightning induction voltage, the safeguard procedures of employing comprise installs lightning arrester, strengthens line insulation and installs auto recloser etc.Leakage conductor specifically is installed in the lightning protection of 10kV overhead transmission line, extends flashover path or is improved the line insulation level.Now, leakage conductor obtains Preliminary Applications in the protection of electric power system 10kV distribution Lightning Protection on Power Transmission Lines, and has obtained certain effect.To install and use cost higher but due to leakage conductor; if installation quantity and installation site that can not the reasonable disposition leakage conductor; just might increase the economic input of 10kV distribution overhead line design and construction, be difficult to realize the optimization of 10kV distribution overhead line lightning protection effect.
The utility model content
The purpose of this utility model is to provide a kind of 10kV distribution overhead line lightning arrester arrangement, reduces 10kV distribution overhead line design and construction economic input, realizes the optimization of 10kV distribution overhead line lightning protection effect.
The utility model realizes that the technical scheme that above-mentioned purpose is taked is: a kind of 10kV distribution overhead line lightning arrester arrangement, comprise cement shaft tower, leakage conductor, line insulator, transmission pressure, down conductor and pole tower ground resistance, leakage conductor and line insulation sub-connection also are arranged on the cement shaft tower, the high-pressure side of leakage conductor is connected with transmission pressure, the earth terminal of leakage conductor is connected with down conductor, ground connection after down conductor is connected with pole tower ground resistance by galvanized steel bar or band steel.
Described transmission pressure is aluminium stranded conductor, pole tower ground resistance 〉=10 Ω, and being arranged as of leakage conductor: the long circuit of every 2 basic cement shaft towers or every 100m is installed one group of leakage conductor.
Described transmission pressure is aluminium stranded conductor, pole tower ground resistance≤5 Ω, and being arranged as of leakage conductor: the long circuit of every 6 basic cement shaft towers or every 300m is installed one group of leakage conductor.
Described transmission pressure is insulated conductor, pole tower ground resistance 〉=10 Ω, and being arranged as of leakage conductor: the long circuit of every 6 basic cement shaft towers or every 300m is installed one group of leakage conductor.
Described line insulator is suspension insulator, pin insulator or insulator crossarm.
The beneficial effects of the utility model are: described 10kV distribution overhead line lightning arrester arrangement can reliably be guaranteed distribution line lightning protection properties and line security operation, simultaneously, farthest reduce the quantity of leakage conductor, reduce distribution line design and construction economic input, realize the best techniques economy of distribution overhead line lightning Protection Design.
Description of drawings
The scheme of installation that Fig. 1 and Fig. 2 are 10kV distribution overhead line lightning arrester arrangement described in the utility model on single time overhead transmission line.
Fig. 3 and Fig. 4 are that 10kV distribution overhead line lightning arrester arrangement described in the utility model is at the scheme of installation of common-tower double-return overhead transmission line.
In figure: 1, line insulator, 2, leakage conductor, 3, down conductor, 4, the cement shaft tower, 5, transmission pressure, 6, pole tower ground resistance.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail.
As shown in Fig. 1-Fig. 4, a kind of 10kV distribution overhead line lightning arrester arrangement, leakage conductor (2) is connected with line insulator (1) and is arranged on cement shaft tower (4), the high-pressure side of leakage conductor (2) is connected with transmission pressure (5), the earth terminal of leakage conductor (2) is connected with down conductor (3), down conductor (3) adopts galvanized steel bar or band steel to be connected with pole tower ground resistance (6), and its sectional area should design according to the maximum current that leakage conductor (2) are flow through.Described line insulator (1) is suspension insulator, pin insulator or insulator crossarm.
For typical 10kV distribution overhead line, be about 50m apart between two basic cement shaft towers (4), claim that this distance is a span.The parameter of typical case's 10kV leakage conductor (2): direct current 1mA reference voltage U
1mA=25kV, 5kA lightning impulse discharging current residual voltage U
5kA=45kV.
Transmission pressure (5) is aluminium stranded conductor, during pole tower ground resistance (6) 〉=10 Ω, and every 2 basic cement shaft towers (4), namely the long circuit one group of leakage conductor of installing (2) of every 100m is protected circuit, as shown in Figure 3 and Figure 4.
Transmission pressure (5) is aluminium stranded conductor; during pole tower ground resistance (6)≤5 Ω; every 6 basic cement shaft towers (4); be that the long circuit one group of leakage conductor of installing (2) of every 300m is protected circuit; its mounting means is similar with mounting means shown in Figure 4 to Fig. 3, but every 6 basic cement shaft tower (4) installing one group of leakage conductor (2).
Transmission pressure (5) is insulated conductor, during pole tower ground resistance (6) 〉=10 Ω, and every 6 basic cement shaft towers (4), namely the long circuit one group of leakage conductor of installing (2) of every 300m is protected circuit.
For improving 10kV distribution overhead transmission line lightning protection properties, when possessing the track remodelling condition, should reduce pole tower ground resistance (6) to 5 Ω.
Transmission pressure (5) adopts insulated conductor as far as possible, and the insulating barrier of insulated conductor and line insulator (1) junction should keep complete, and without damaged, its insulation property are good.
Claims (5)
1. 10kV distribution overhead line lightning arrester arrangement, comprise cement shaft tower, leakage conductor, line insulator, transmission pressure, down conductor and pole tower ground resistance, it is characterized in that, leakage conductor and line insulation sub-connection also are arranged on the cement shaft tower, the high-pressure side of leakage conductor is connected with transmission pressure, the earth terminal of leakage conductor is connected with down conductor, ground connection after down conductor is connected with pole tower ground resistance by galvanized steel bar or band steel.
2. 10kV distribution overhead line lightning arrester arrangement according to claim 1, it is characterized in that, described transmission pressure is aluminium stranded conductor, pole tower ground resistance 〉=10 Ω, and being arranged as of leakage conductor: the long circuit of every 2 basic cement shaft towers or every 100m is installed one group of leakage conductor.
3. 10kV distribution overhead line lightning arrester arrangement according to claim 1, it is characterized in that, described transmission pressure is aluminium stranded conductor, pole tower ground resistance≤5 Ω, and being arranged as of leakage conductor: the long circuit of every 6 basic cement shaft towers or every 300m is installed one group of leakage conductor.
4. 10kV distribution overhead line lightning arrester arrangement according to claim 1, it is characterized in that, described transmission pressure is insulated conductor, pole tower ground resistance 〉=10 Ω, and being arranged as of leakage conductor: the long circuit of every 6 basic cement shaft towers or every 300m is installed one group of leakage conductor.
5. according to claim 1-4 described 10kV distribution overhead line of any one lightning arrester arrangements, is characterized in that, described line insulator is suspension insulator, pin insulator or insulator crossarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320366579 CN203278165U (en) | 2013-06-25 | 2013-06-25 | 10kV overhead distribution line arrester arrangement structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320366579 CN203278165U (en) | 2013-06-25 | 2013-06-25 | 10kV overhead distribution line arrester arrangement structure |
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| CN203278165U true CN203278165U (en) | 2013-11-06 |
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| CN 201320366579 Expired - Lifetime CN203278165U (en) | 2013-06-25 | 2013-06-25 | 10kV overhead distribution line arrester arrangement structure |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009440A (en) * | 2014-04-22 | 2014-08-27 | 国网上海市电力公司 | Installation method of line arresters for lighting protection of 10 kV common-tower double-circuit line |
| CN104332980A (en) * | 2014-08-21 | 2015-02-04 | 国家电网公司 | Concrete-rod grounding anti-thunder protection system |
| CN105098694A (en) * | 2015-08-24 | 2015-11-25 | 国网天津静海供电有限公司 | Overhead lightning line erection method based on typical design of power distribution network |
| CN105186372A (en) * | 2015-09-28 | 2015-12-23 | 国网江西省电力科学研究院 | Test method applicable for studying grounding mode of 10kV circuit arrester |
| CN107742881A (en) * | 2017-11-14 | 2018-02-27 | 张京伦 | Virtual positive pole induction type lightning conducter lightning protection device on a kind of HVDC overhead transmission line |
| CN108418168A (en) * | 2018-03-12 | 2018-08-17 | 北京天润新能投资有限公司 | A kind of method and system for taking low residual-pressure lightning arrester to administer collection electric line lightning stroke |
| CN112054459A (en) * | 2020-07-31 | 2020-12-08 | 广东电网有限责任公司广州供电局 | Lightning protection method for distribution line |
-
2013
- 2013-06-25 CN CN 201320366579 patent/CN203278165U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104009440A (en) * | 2014-04-22 | 2014-08-27 | 国网上海市电力公司 | Installation method of line arresters for lighting protection of 10 kV common-tower double-circuit line |
| CN104332980A (en) * | 2014-08-21 | 2015-02-04 | 国家电网公司 | Concrete-rod grounding anti-thunder protection system |
| CN105098694A (en) * | 2015-08-24 | 2015-11-25 | 国网天津静海供电有限公司 | Overhead lightning line erection method based on typical design of power distribution network |
| CN105186372A (en) * | 2015-09-28 | 2015-12-23 | 国网江西省电力科学研究院 | Test method applicable for studying grounding mode of 10kV circuit arrester |
| CN105186372B (en) * | 2015-09-28 | 2017-08-25 | 国网江西省电力科学研究院 | A kind of test method for being applied to research 10kV leakage conductor Contact patch |
| CN107742881A (en) * | 2017-11-14 | 2018-02-27 | 张京伦 | Virtual positive pole induction type lightning conducter lightning protection device on a kind of HVDC overhead transmission line |
| CN107742881B (en) * | 2017-11-14 | 2024-03-08 | 张京伦 | Virtual positive pole induction type lightning protection device on high-voltage direct-current overhead transmission line |
| CN108418168A (en) * | 2018-03-12 | 2018-08-17 | 北京天润新能投资有限公司 | A kind of method and system for taking low residual-pressure lightning arrester to administer collection electric line lightning stroke |
| CN112054459A (en) * | 2020-07-31 | 2020-12-08 | 广东电网有限责任公司广州供电局 | Lightning protection method for distribution line |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |