CN102930943B - A kind of pure air series gap type UHVAC transmission line spark gap - Google Patents
A kind of pure air series gap type UHVAC transmission line spark gap Download PDFInfo
- Publication number
- CN102930943B CN102930943B CN201210380533.8A CN201210380533A CN102930943B CN 102930943 B CN102930943 B CN 102930943B CN 201210380533 A CN201210380533 A CN 201210380533A CN 102930943 B CN102930943 B CN 102930943B
- Authority
- CN
- China
- Prior art keywords
- gap
- less
- lightning arrester
- arrester body
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 title claims abstract description 17
- 238000009434 installation Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000012212 insulator Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 208000025274 Lightning injury Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
Abstract
The present invention provides a kind of pure air series gap type UHVAC transmission line spark gap, described spark gap includes lightning arrester body and series gap group, described lightning arrester body includes the unit of an arrester of overcoat, resistor disc and concatenation, described series gap group includes that the gap being sequentially connected in series, described series gap group are connected with the high-pressure side of lightning arrester body；The height of described lightning arrester body is 4～6m, and the distance between described gap is 2.0～2.4m.The pure air series gap type UHVAC transmission line spark gap that the present invention provides, simple in construction, volume is little, easy for installation；Its gap adjusting range is big；Technical parameter is reasonable, has a good application prospect.
Description
Technical field
The present invention relates to spark gap, be specifically related to a kind of pure air series gap type UHVAC transmission line spark gap.
Background technology
Generally use in engineering and reduce earth resistance, erection installation of dual lightning wires, reduce the methods such as earth-wire protection angle and limit lightning surge, reduce tripping rate with lightning strike.But, the mountain area line segment of reduction earth resistance difficulty strong at lightening activity, above-mentioned means can not fundamentally solve lightning stroke trip problem.
The utility model patent of Application No. 201020537907.9 discloses a kind of ultrahigh-voltage alternating-current lightning arrestor, the unit of an arrester being serially connected including more piece, and it is separately positioned on the pressure-equalizing device on this unit of an arrester top and the insulator foot of bottom, the resistor disc being connected in parallel with each other is set in unit of an arrester, and be connected on upper and lower side lid by insulating bar, and be sealed in insulator, the outside pressure-equalizing device that spark gap Potential distribution vertically is connected by unit of an arrester upper end controls.
Having the 500kV of actual motion and following leakage conductor the most both at home and abroad, lightning arrester body is generally higher than the length of insulator the most in parallel with clearance distance sum, need to design special gold utensil and solve installing space mismatch problem, and installation difficulty is big.Due to the raising of electric pressure, extra high voltage line lightning arrester body height and weight are the most inevitably greater than 500kV and following leakage conductor, and installation difficulty can be bigger；Currently without the test data in terms of extra high voltage line spark gap the air gap and Insulation Coordination, test and design difficulty are big.
This is accomplished by proposing the theory that miniaturization is applied in extra high voltage line spark gap, designs the extra high voltage line spark gap of miniaturization, reduces installation difficulty；It needs to be determined that the body dimension of extra high voltage line spark gap and clearance distance.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the present invention provides a kind of pure air series gap type UHVAC transmission line spark gap, and simple in construction, volume is little, easy for installation；Its gap adjusting range is big；Technical parameter is reasonable, has a good application prospect.
In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that:
A kind of pure air series gap type UHVAC transmission line spark gap, described spark gap includes lightning arrester body and series gap group, described lightning arrester body includes the unit of an arrester of overcoat, resistor disc and concatenation, described series gap group includes that the gap being sequentially connected in series, described series gap group are connected with the high-pressure side of lightning arrester body；The height of described lightning arrester body is 4～6m, and the distance between described gap is 2.0～2.4m.
The height of described lightning arrester body is 4.6m.
The creep age distance of described lightning arrester body is not less than 10200mm.
The dry arcing distance of described overcoat is not less than 4.6m, so that described lightning arrester body is resistant to be not less than the lightning impulse voltage of its actual level of protection 1.25 times, and is resistant to be not less than the power-frequency voltage 1min of 635kV under the conditions of the drenching with rain of regulation.
A diameter of the 75 of described resistor disc～100mm so that resistor disc can by be not less than 1500A long duration impulse current test and continuous 3 times by 4/10 μ s heavy current impact resistance test that amplitude is 100kA.
The rated voltage of described spark gap is that under 768kVrms direct current 2mA, reference voltage is not less than 1086kV, and under under nominal discharge current 30kA, 30kA lightning impulse current, residual voltage is not more than 2150kV, 30kA steep impulse current, residual voltage is not more than 2365kV.
Distance between described gap is 2.1～2.3m.
Described gap includes two electrodes, and one of them is connected with the high-pressure side of described lightning arrester body, and its metal tube or metallic rod diameter are not less than 80mm, and another electrode is arranged on transmission line wire, and its metal tube or metallic rod diameter are not less than 200mm.
Described spark gap standard lightning impulse 50% discharge voltage is not more than 2900kV；Switching impulse withstanding voltage is not less than 1600kV；Under the conditions of the drenching with rain of regulation, it is resistant to be not less than the power-frequency voltage 1min of 700kV when described lightning arrester body breaks down, under the conditions of the drenching with rain of regulation, when it exception does not occurs, is resistant to be not less than the power-frequency voltage 1min of 889kV.
Compared with prior art, the beneficial effects of the present invention is: the pure air series gap type UHVAC transmission line spark gap simple in construction that the present invention provides, volume is little, easy for installation；Its gap adjusting range is big；Technical parameter is reasonable, has a good application prospect.
Accompanying drawing explanation
Fig. 1 is pure air series gap type UHVAC transmission line test of lightning arrester and scheme of installation；
Fig. 2 is the lightning arrester body schematic diagram of UHVAC transmission line spark gap；
Fig. 3 is discharge voltage and the clearance distance relation schematic diagram of UHVAC transmission line spark gap.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Such as Fig. 1-Fig. 3, a kind of pure air series gap type UHVAC transmission line spark gap, described spark gap includes lightning arrester body and series gap group, described lightning arrester body includes the unit of an arrester of overcoat, resistor disc and concatenation, described series gap group includes that the gap being sequentially connected in series, described series gap group are connected with the high-pressure side of lightning arrester body；The height of described lightning arrester body is 4～6m, with the height of 4.6m as optimum.
Distance between described gap is 2.0～2.4m, and the distance with 2.1～2.3m is excellent.
The creep age distance of described lightning arrester body is not less than 10200mm.
The dry arcing distance of described overcoat is not less than 4.6m, so that described lightning arrester body is resistant to be not less than the lightning impulse voltage of its actual level of protection 1.25 times, and is resistant to be not less than the power-frequency voltage 1min of 635kV under the conditions of the drenching with rain of regulation.Described lightning arrester body can pass through virtual value 60kA, the persistent period short-circuit test not less than 0.1s.
A diameter of the 75 of described resistor disc～100mm so that resistor disc can by be not less than 1500A long duration impulse current test and continuous 3 times by 4/10 μ s heavy current impact resistance test that amplitude is 100kA.
The rated voltage of described spark gap is that under 768kVrms direct current 2mA, reference voltage is not less than 1086kV, and under under nominal discharge current 30kA, 30kA lightning impulse current, residual voltage is not more than 2150kV, 30kA steep impulse current, residual voltage is not more than 2365kV.
Described gap includes two electrodes, and one of them is connected with the high-pressure side of described lightning arrester body, and its metal tube or metallic rod diameter are not less than 80mm, and another electrode is arranged on transmission line wire, and its metal tube or metallic rod diameter are not less than 200mm.
Described spark gap standard lightning impulse 50% discharge voltage is not more than 2900kV；Switching impulse withstanding voltage is not less than 1600kV；Under the conditions of the drenching with rain of regulation, it is resistant to be not less than the power-frequency voltage 1min of 700kV when described lightning arrester body breaks down, under the conditions of the drenching with rain of regulation, when it exception does not occurs, is resistant to be not less than the power-frequency voltage 1min of 889kV.
Finally should be noted that: above example is only in order to illustrate that technical scheme is not intended to limit, although the present invention being described in detail with reference to above-described embodiment, those of ordinary skill in the field are it is understood that still can modify or equivalent to the detailed description of the invention of the present invention, and without departing from any amendment of spirit and scope of the invention or equivalent, it all should be contained in the middle of scope of the presently claimed invention.
Claims (1)
1. a pure air series gap type UHVAC transmission line spark gap, it is characterized in that: described spark gap includes lightning arrester body and series gap group, described lightning arrester body includes the unit of an arrester of overcoat, resistor disc and concatenation, described series gap group includes that the gap being sequentially connected in series, described series gap group are connected with the high-pressure side of lightning arrester body；The height of described lightning arrester body is 4～6m, and the distance between described gap is 2.0～2.4m；
The creep age distance of described lightning arrester body is not less than 10200mm；
The dry arcing distance of described overcoat is not less than 4.6m, so that described lightning arrester body is resistant to be not less than the lightning impulse voltage of its actual level of protection 1.25 times, and is resistant to be not less than the power-frequency voltage 1min of 635kV under the conditions of the drenching with rain of regulation；
A diameter of the 75 of described resistor disc～100mm so that resistor disc can by be not less than 1500A long duration impulse current test and continuous 3 times by 4/10 μ s heavy current impact resistance test that amplitude is 100kA；
The rated voltage of described spark gap is 768kVrms, and under direct current 2mA, reference voltage is not less than 1086kV, and under under nominal discharge current 30kA, 30kA lightning impulse current, residual voltage is not more than 2150kV, 30kA steep impulse current, residual voltage is not more than 2365kV；
Standard lightning impulse 50% discharge voltage of described spark gap is not more than 2900kV；Switching impulse withstanding voltage is not less than 1600kV；Under the conditions of the drenching with rain of regulation, it is resistant to be not less than the power-frequency voltage 1min of 700kV when described lightning arrester body breaks down, under the conditions of the drenching with rain of regulation, when it exception does not occurs, is resistant to be not less than the power-frequency voltage 1min of 889kV；
Described gap includes two electrodes, one of them is connected with the high-pressure side of described lightning arrester body, the diameter of the electrode being connected with described lightning arrester body high-pressure side is not less than 80mm, another electrode is arranged on transmission line wire, and the diameter of the electrode being arranged on transmission line wire is not less than 200mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380533.8A CN102930943B (en) | 2012-10-09 | 2012-10-09 | A kind of pure air series gap type UHVAC transmission line spark gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210380533.8A CN102930943B (en) | 2012-10-09 | 2012-10-09 | A kind of pure air series gap type UHVAC transmission line spark gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102930943A CN102930943A (en) | 2013-02-13 |
| CN102930943B true CN102930943B (en) | 2016-08-03 |
Family
ID=47645721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210380533.8A Active CN102930943B (en) | 2012-10-09 | 2012-10-09 | A kind of pure air series gap type UHVAC transmission line spark gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102930943B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789774A (en) * | 2018-09-28 | 2021-05-11 | Abb电网瑞士股份公司 | External gap line arrester |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833903A (en) * | 2015-03-04 | 2015-08-12 | 国家电网公司 | Method for determining gap distance of surge arresters containing series gapped structures along with altitude change |
| CN105182195A (en) * | 2015-08-26 | 2015-12-23 | 芜湖市凯鑫避雷器有限责任公司 | Gap distance determination method for lightning arrester with series gap |
| CN106601397A (en) * | 2016-12-29 | 2017-04-26 | 中国南方电网有限责任公司超高压输电公司百色局 | High-voltage direct current line arrester |
| CN107422236A (en) * | 2017-08-31 | 2017-12-01 | 南方电网科学研究院有限责任公司 | The dry arcing distance choosing method of 500kVCT sleeve pipes |
| CN107490751B (en) * | 2017-08-31 | 2020-06-30 | 南方电网科学研究院有限责任公司 | Dry arc distance selection method for 500kV transformer bushing |
| CN107561421A (en) * | 2017-08-31 | 2018-01-09 | 中国南方电网有限责任公司电网技术研究中心 | 500kV porcelain strut insulator dry arcing distance choosing methods |
| CN109116283B (en) * | 2018-11-06 | 2020-06-30 | 云南电网有限责任公司电力科学研究院 | System and method for checking residual voltage monitoring device of lightning arrester |
| CN110164638B (en) * | 2019-05-16 | 2024-02-23 | 山东电力设备有限公司 | Power transmission line lightning arrester device for adjusting air gap according to environmental data |
| CN113964762B (en) * | 2021-08-19 | 2023-06-16 | 国网湖南省电力有限公司 | Wind deflection tripping fault control device for overhead transmission line and application method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202384124U (en) * | 2011-11-14 | 2012-08-15 | 国网电力科学研究院武汉南瑞有限责任公司 | Arrester for direct-current power transmission line protection |
| CN202473431U (en) * | 2012-03-01 | 2012-10-03 | 浙江中能电气有限公司 | External string pure air gap lightning arrester |
| CN202977037U (en) * | 2012-10-09 | 2013-06-05 | 中国电力科学研究院 | Pure-air series-clearance-type alternating current extra-high voltage circuit lightning arrester |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005276986A (en) * | 2004-03-24 | 2005-10-06 | Nishi Nippon Electric Wire & Cable Co Ltd | Parallel type lightning arrester and technique of parallel type lightning arresting |
-
2012
- 2012-10-09 CN CN201210380533.8A patent/CN102930943B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202384124U (en) * | 2011-11-14 | 2012-08-15 | 国网电力科学研究院武汉南瑞有限责任公司 | Arrester for direct-current power transmission line protection |
| CN202473431U (en) * | 2012-03-01 | 2012-10-03 | 浙江中能电气有限公司 | External string pure air gap lightning arrester |
| CN202977037U (en) * | 2012-10-09 | 2013-06-05 | 中国电力科学研究院 | Pure-air series-clearance-type alternating current extra-high voltage circuit lightning arrester |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112789774A (en) * | 2018-09-28 | 2021-05-11 | Abb电网瑞士股份公司 | External gap line arrester |
| CN112789774B (en) * | 2018-09-28 | 2022-05-31 | 日立能源瑞士股份公司 | External gap line arrester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102930943A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102930943B (en) | A kind of pure air series gap type UHVAC transmission line spark gap | |
| CN104599798A (en) | Direct current lightning arrester and system using the same | |
| CN205388922U (en) | Composite covering has series gap metal oxide lightning arrester for 420kV alternating current transmission line | |
| CN201171150Y (en) | Overvoltage protector for open-resistant lever for avoiding wire from breaking due to lightning stroke | |
| CN202977037U (en) | Pure-air series-clearance-type alternating current extra-high voltage circuit lightning arrester | |
| CN203871821U (en) | Lightning protection device used for high-voltage power transmission line | |
| CN202871418U (en) | 10-35 kV suspension insulator | |
| CN206293230U (en) | A kind of hvdc transmission line arrester | |
| CN202473431U (en) | External string pure air gap lightning arrester | |
| CN202749521U (en) | Antitheft earth electrode | |
| CN203260987U (en) | High-voltage line lightning arrester | |
| CN201260026Y (en) | Lightning protector with series interval | |
| CN201498289U (en) | 10 KV post lightning arrester | |
| CN205646747U (en) | 800 kilovolt direct current line gap installation device | |
| CN205303080U (en) | Resistant bar -shaped suspension type composite insulator of lightning impulse | |
| CN201226283Y (en) | Apparatus for equalizing voltage of extra-high voltage DC post insulator | |
| CN204215834U (en) | A kind of direct current arrester | |
| CN202996445U (en) | Disconnector-containing type compound insulated column-type lightning-protection insulator | |
| CN204316064U (en) | A kind of insulative distributing line lightning protection device | |
| CN203165585U (en) | Puncture lightning rod type insulator | |
| CN201490714U (en) | Line lighting protection overvoltage protector | |
| CN202940459U (en) | Lightning arrester used in extra-high voltage alternating-current electric transmission line | |
| CN202678010U (en) | Novel lightning protection device | |
| CN201845625U (en) | Side lead-out surge arrester | |
| CN106601397A (en) | High-voltage direct current line arrester |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |