CN101404392A - Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus - Google Patents
Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus Download PDFInfo
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- CN101404392A CN101404392A CNA2008100132861A CN200810013286A CN101404392A CN 101404392 A CN101404392 A CN 101404392A CN A2008100132861 A CNA2008100132861 A CN A2008100132861A CN 200810013286 A CN200810013286 A CN 200810013286A CN 101404392 A CN101404392 A CN 101404392A
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- arc extinguishing
- environment
- pure nitrogen
- high voltage
- electrical apparatus
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Abstract
The invention relates to an environment friendly outdoor AC high voltage full-sealed combined electric apparatus which uses environmental friendly gases to replace the gas of SF6 for solving the problem of a poisonous low fluorin compound generated by the gas of SF6 used for arc extinguishing. A double-fracture type vacuum arc extinguishing chamber is adopted for arc extinguishing; a compound insulating bushing is arranged at the two sides of the arc extinguishing chamber; a three-power position isolating switch is arranged in the lower surface; the lower part of the bushing is sheathed with an electromagnetic mutual inductor or a photoelectric mutual inductor; high pure nitrogen is filled in the bushing and a tank body for internal isolation; the high pure nitrogen is adopted between the vacuum arc extinguishing chamber and the tank body for internal isolation; the fracture of each double-fracture type vacuum arc extinguishing chamber is provided with an equalizing capacitor; the three-power position isolating switch adopts the high pure nitrogen as the internal isolation, thus shortening the mounting time and improving the reliability and safety of the device. The environment pollution is avoided in particular as the gas of SF6 is not used.
Description
Technical field:
The present invention relates to high voltage electrical apparatus technical field, exactly it is a kind of environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus.
Background technology:
High pressure combined electrical apparatus and primary cut-out are electrical equipment commonly used in the High-Voltage Electrical Appliances.At present, employed high pressure combined electrical apparatus of electrical network and primary cut-out all are filled with the SF6 gas about 0.5Mpa both at home and abroad, its main purpose is arc extinguishing and interior insulation, SF6 gas has excellent arc extinguishing and insulation property, but SF6 gas is a kind of strong greenhouse gases: in the Kyoto Protocol that passed through in 1997 in pointed 6 kinds of greenhouse gases, SF6 gas is the strongest a kind of of greenhouse effect, its greenhouse effects of the earth coefficient is 23900 times of CO2, its life-span in atmosphere is 3200, and therefore restriction use SF6 gas is a kind of inexorable trend.SF6 gas is mainly used in switchgear and the power transmission and transforming equipment in the world, so Kyoto Protocol uses the technical staff to vast high-voltage switch gear field to propose new problem to the restriction of SF6 gas.We earlier do not use the gas isolated HGIS of SF6 in the development of 126kV electric pressure in sum, progressively stride forward to high voltage field more again.Be a kind of environmental protection equipment of electrical network exploitation without any contaminated environment.Because SF6 gas has strong greenhouse effect, vacuum circuit-breaker develops into a kind of trend by middle pressure grade to voltage levels direction more.The vacuum circuit-breaker status that takes advantage in the medium-voltage equipment field of 12kV--40.5kV at present.Imperative to high voltage field exploitation environment protection type high pressure converting equipment.
Present Japan leading other country aspect high voltage vacuum interrupter, Japanese AE POWER company has succeeded in developing double break mouth potting breaker and the 145kV single break open type vacuum circuit-breaker (filling the 0.15MpaSF6 gas-insulated) of 168kV.France executes to bear also to have obtained and breaks through progress, researches and develops successful many suspensions of 72.5kV radome vacuum interrupter.HIT developed the 72.5kV dry air insulation complete switch device that adopts vacuum circuit-breaker and with 2005 years put into operation.
The Cubicle Gas-Insulated Switchgear that electric power system is used is (GIS) that fills SF6.In the later stage nineties 20th century, a kind of compact combined high-voltage switchgear has appearred in the world.This equipment complex the advantage of open type and enclosed switch equipment.It is integrated with the high voltage device height, and it is compact more to make it high voltage switchgear.Majority are called HGIS at present, and this compares with the open type switchgear, has saved floor space greatly, again than GIS equipment, has saved expense.Europe was in during the 1950's and the sixties, old transformer station transformed at that time, but with this equipment cost saving and minimizing floor space.Therefore, European a few major company develops this kind product unexpectedly mutually.Comprise the PASS type of ABB, the MITS type of Mitsubishi, the HIS type of Siemens, the GIM type of Alstom etc.Along with the intensification that HGIS equipment uses, China high-voltage switch gear manufacturing firm also should this equipment of more concerns, dwindles the requirement that floor space is reduced investment outlay again to satisfy the power department requirement.
In recent years promote the use of HGIS and be more suitable for China's actual conditions, can bring more convenience and material benefit to working service.The technological progress that HGIS promotes combined electrical apparatus reaches a new stage.But its fatal shortcoming is to continue to use SF6 gas.
Solving SF6 gas arc extinguishing and Insulation Problems is a present important topic.With the vacuum interrupter orphan of going out, be our idea with the insulation of environmental protection insulating gas, also be basic measures of other country's research and development in the world.
Summary of the invention:
The objective of the invention is to substitute SF6 gas, select for use vacuum interrupter to solve the problem of arc extinguishing, Insulation Problems in solving with the environmental protection insulating gas with the poisonous low fluorine compounds of SF6 gas generation with the environmental protection insulating gas.Developing in addition and not using the high pressure combined electrical apparatus of SF6 gas and porcelain insulating material is one of our development direction.Our starting point is the 126kV voltage domain, arc control device adopt the 84KV vacuum interrupter of " Toshiba " production and adopt the double break mouth, each fracture is joined CT-1 type high-voltage capacitor and is all pressed, the environmental protection insulating gas is adopted in interior insulation, insulating sleeve adopts the silicon rubber compound insulating sleeve, operating mechanism adopts spring operating mechanism, selects three merit position isolating switch and photoelectric current inductors.
Technical scheme of the present invention is as follows, it is made up of support, vacuum interrupter, current transformer, compound insulating sleeve, isolating switch mechanism, breaker mechanism, tank body and central console, it is characterized in that: it adopts the vacuum interrupter arc extinguishing of double break shape of the mouth as one speaks formula, compound insulating sleeve is installed in the arc control device both sides, three merit position isolating switches are installed below, sleeve pipe bottom suit electromagnetic transformer or photo-electricity mutual-inductor, be filled with high pure nitrogen in sleeve pipe and the tank body and do interior insulation, adopt the high pure nitrogen body to do interior insulation between vacuum interrupter and tank body.The fracture of the vacuum interrupter of each double break shape of the mouth as one speaks formula is joined equalizing capacitor.Three merit position isolating switches adopt the high pure nitrogen body to do interior insulation.Described high pure nitrogen is 0.4-0.8Mpa.
The invention has the beneficial effects as follows: the demand of digitlization electric substation has been satisfied in such configuration, has reduced floor space, has shortened the set-up time, has improved the reliability and the fail safe of equipment.Solve interior Insulation Problems with the environmental protection insulating gas.Avoid use SF6 gas, satisfied the requirement of Kyoto Protocol, reduced environmental pollution.Adopt fiber glass epoxy and silicon rubber to make sleeve pipe, replace traditional porcelain sleeve pipe, reduced environmental pollution, reached the environmental protection purpose.
Description of drawings
Fig. 1 is the structural representation of environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus among the present invention.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is the circuit connection diagram of inside of the present invention.
Embodiment
Insulation in high pressure vacuum circuit breaker among the present invention relates between high tension vacuum arc-extinguishing chamber and tank body, big current vacuum are cut-off, rated current and many prior aries field such as temperature rise, mechanical property, vacuum interrupter casing insulation and capacity current cut-off, little inductance current cut-offs.
Primary structure of the present invention is as follows:
The difference of structure of the present invention and present combined electrical apparatus is to adopt vacuum interrupter, double break shape of the mouth as one speaks formula makes its rated voltage reach 145kV or 126kV, every 84KV vacuum interrupter series connection of adopting " Japanese Toshiba " to produce mutually, each arc control device is joined equalizing capacitance, adopt the dry air insulation between arc control device and tank body, circuit breaker is joined spring operating mechanism.The both sides sleeve pipe adopts compound insulating sleeve, and sleeve pipe can be installed electromagnetic transformer or photo-electricity mutual-inductor in the outside down, the isolating switch of three merit positions can be installed, every equal distribution actuation mechanism of isolating switch between composite bushing and tank body.Installation and use are all same as the prior art.
1, the HGIS electrical equipment of the similar present electricity market of this structural shape.The above equipment of 72.5kV all adopts SF6 gas arc extinguishing and interior insulation at present.Dry air insulation that if we adopt, though have in theory according to a tree name, at present at home also beyond example.
2, vacuum interrupter adopts the double break mouth, and fracture can adopt equalizing capacitor, in the vacuum extinction field, goes back beyond example in the domestic practice.
3, the HGIS electrical equipment of various countries' production at present, the connecting lever of isolating switch and alternate transmission are all exposed in atmosphere.Long-time running can produce phenomenons such as corrosion, lubricating oil be withered out of doors, causes operating difficulties.The connecting rod and the connecting lever that run into freezing outer transmission can produce very big resistance, have a strong impact on grid switching operation.The shackle rod connecting lever of isolating switch is closed, needs some special shapes just can achieve the goal.See also there is not this structure from present market.Can adopt the patent of invention 03110801.6 and the 200410050272.9 disclosed structures of the application of inventor's Wang Ruobo.
1, rated voltage: 126/145kV
2, rated current: 2000/2000A
3, rated frequency: 50Hz
4, rated short circuit drop-out current: 31.5/40kA
5, specified short time withstand current: 31.5/40kA (3s)
6, making current: 80/100kA
7,1 minute power-frequency withstand voltage: 230/315kV
8, hit withstand voltage: 550/750kV in the thunder and lightning
9, insulating gas rated pressure: 0.6MPa
10, schedule weight closing operation circulation: branch-0.3s-closes branch-180s and closes branch
11, adapted operating mechanism: circuit breaker is joined spring mechanism, tri-station isolating switch distribution actuation mechanism
Arc control device adopt vacuum extinction, have cancelled the SF6 gas arc extinguishing that makes in a large number at present, and the use of thoroughly stopping SF6 has reached the environmental protection purpose.
Interior insulation employing 0.4--0.8Mpa pure nitrogen gas insulation in vacuum interrupter, three merit position isolating switches and the sleeve pipe and between tank body.
Claims (4)
1. environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus, it is by support (1), vacuum interrupter (2), current transformer (4), compound insulating sleeve (5), isolating switch mechanism (6), breaker mechanism (7), tank body (8) and central console (9) are formed, it is characterized in that: it adopts vacuum interrupter (2) arc extinguishing of double break shape of the mouth as one speaks formula, compound insulating sleeve (5) is installed in arc control device (2) both sides, three merit position isolating switches (3) are installed below, sleeve pipe bottom suit electromagnetic transformer or photo-electricity mutual-inductor (4), be filled with high pure nitrogen in sleeve pipe and the tank body and do interior insulation, adopt the high pure nitrogen body to do interior insulation between vacuum interrupter and tank body.
2. environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus according to claim 1 is characterized in that: the fracture of the vacuum interrupter of each double break shape of the mouth as one speaks formula is joined equalizing capacitor.
3. environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus according to claim 1 is characterized in that: three merit position isolating switches adopt the high pure nitrogen body to do interior insulation.
4, environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus according to claim 1 is characterized in that: described high pure nitrogen is 0.4-0.8Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100132861A CN101404392B (en) | 2008-09-19 | 2008-09-19 | Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100132861A CN101404392B (en) | 2008-09-19 | 2008-09-19 | Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus |
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| Publication Number | Publication Date |
|---|---|
| CN101404392A true CN101404392A (en) | 2009-04-08 |
| CN101404392B CN101404392B (en) | 2011-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008100132861A Expired - Fee Related CN101404392B (en) | 2008-09-19 | 2008-09-19 | Environment-friendly outdoor AC high voltage totally-enclosed combined electrical apparatus |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136689A (en) * | 2011-01-11 | 2011-07-27 | 浙江省电力公司 | Hgis intelligent switch |
| CN102684100A (en) * | 2011-03-17 | 2012-09-19 | 包红旗 | Vacuum type high-pressure combined electric apparatus |
| WO2016034088A1 (en) * | 2014-09-02 | 2016-03-10 | 江苏精科智能电气股份有限公司 | Composite combined electric appliance |
| CN111463062A (en) * | 2020-04-27 | 2020-07-28 | 郑州大学 | Environment-friendly tank type multi-fracture vacuum circuit breaker |
| CN112993844A (en) * | 2021-01-29 | 2021-06-18 | 南瑞集团有限公司 | Environment-friendly 145 KV-72 kV combined type combined electrical equipment |
| CN113410824A (en) * | 2021-06-15 | 2021-09-17 | 广东电网有限责任公司广州供电局 | High-voltage alternating-current rapid switch equipment |
-
2008
- 2008-09-19 CN CN2008100132861A patent/CN101404392B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136689A (en) * | 2011-01-11 | 2011-07-27 | 浙江省电力公司 | Hgis intelligent switch |
| CN102684100A (en) * | 2011-03-17 | 2012-09-19 | 包红旗 | Vacuum type high-pressure combined electric apparatus |
| WO2016034088A1 (en) * | 2014-09-02 | 2016-03-10 | 江苏精科智能电气股份有限公司 | Composite combined electric appliance |
| CN111463062A (en) * | 2020-04-27 | 2020-07-28 | 郑州大学 | Environment-friendly tank type multi-fracture vacuum circuit breaker |
| CN111463062B (en) * | 2020-04-27 | 2022-06-14 | 郑州大学 | Environment-friendly tank type multi-fracture vacuum circuit breaker |
| CN112993844A (en) * | 2021-01-29 | 2021-06-18 | 南瑞集团有限公司 | Environment-friendly 145 KV-72 kV combined type combined electrical equipment |
| CN113410824A (en) * | 2021-06-15 | 2021-09-17 | 广东电网有限责任公司广州供电局 | High-voltage alternating-current rapid switch equipment |
| CN113410824B (en) * | 2021-06-15 | 2022-05-27 | 广东电网有限责任公司广州供电局 | High-voltage alternating-current rapid switch equipment |
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| Publication number | Publication date |
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| CN101404392B (en) | 2011-03-16 |
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Granted publication date: 20110316 Termination date: 20180919 |