CN203218781U - Gas insulation vacuum arc extinguishing switch equipment using a plurality of gases - Google Patents
Gas insulation vacuum arc extinguishing switch equipment using a plurality of gases Download PDFInfo
- Publication number
- CN203218781U CN203218781U CN 201320059837 CN201320059837U CN203218781U CN 203218781 U CN203218781 U CN 203218781U CN 201320059837 CN201320059837 CN 201320059837 CN 201320059837 U CN201320059837 U CN 201320059837U CN 203218781 U CN203218781 U CN 203218781U
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- gas
- compartments
- vacuum circuit
- breaker
- switchgear
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- Gas-Insulated Switchgears (AREA)
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
Gas insulation vacuum arc extinguishing switch equipment using a plurality of gases is provided; the switch equipment comprises a seal container (1) filled with sealed insulation gases, and a vacuum circuit breaker (3) and an isolation grounding switch (4) arranged in the sealing container (1); the vacuum circuit breaker, the isolation grounding switch and the sealing container (1) are in an electric insulation state; the sealing container (1) is divided into two compartments (1a, 1b) by an isolation plate (5); the vacuum circuit breaker (3) and the isolation grounding switch (4) are respectively arranged in two compartments; and the vacuum circuit breaker (3) and the isolation grounding switch are in electric connection through a sleeve pipe (6); and the two compartments (1a, 1b) are sealed from each other and are filled with different insulation gases.
Description
Technical field
The utility model relates to a kind of gas-insulated switchgear device, particularly a kind of switch cubicle of the pressure environmental-protective gas-insulating vacuum extinction for distribution system.
Background technology
The switchgear of gas-insulated vacuum extinction is the totally-enclosed charger that adopts welding, inflation, leak hunting technology to produce, and its all live parts all are sealed in the insulation gas filled airtight container.Such switchgear is owing to isolate conducting element and the external world fully, so it is little to have a volume, safety and reliability height, is difficult for advantages such as affected by environment, is particularly useful for high height above sea level, humidity, severe environmental conditions such as filth.Such switch mainly uses SF at present
6Gas is as insulation and arc-extinguishing medium, however SF
6Gas is hot room benefit gas, and its global warmization latent energy value is 23900 times of carbon dioxide, and therefore, the researcher of developed country can replace SF attempting to seek
6The new medium that is used for power transmission and transforming equipment is to reduce or to stop SF
6Use.
Mention among the patent JP4119441B2 and use N
2Or O
2Or dry air or CO
2As main insulating gas composition, and be mixed with SF below 20% Deng gas
6Gas, c-C
4F
8(octafluorocyclobutane), CF
3SF
5, C
3F
8Or CF
3OSF
3Deng the gas-insulated medium of gas as gas insulated apparatus;
Patent JP2004236459A, JP2006014411A etc. also mention and use c-C
4F
8(octafluorocyclobutane), C
3F
8With N
2, CO
2Deng mist as insulation of electrical installation and arc-extinguishing medium.
Yet also there is following problem: owing to contain carbon in the above-mentioned gas, if so mist is used as the arc extinguishing occasion, under its electric arc that when drop-out current, produces, gas takes place in disassociation and the compound process, there is the problem that produces free carbon, if the carbon that produces is attached under the lip-deep situation of solid insulator such as insulator spacer, may cause the electrical insulation capability of this part significantly to reduce.Therefore the fluorine carbon mist of carbon elements is not suitable for the occasion that electric arc produces.And comprise vacuum circuit-breaker in the present gas-insulated vacuum extinction switchgear, parts such as isolation earthing switch, though wherein isolation earthing switch is not used for disconnecting rated current, it is in some cases, also need to have the ability of cut-offfing little capacity current, also can produce electric arc.Therefore the switchgear that fluorine carbon mist is used for gas-insulated vacuum extinction also will produce the problem that insulation descends after long-time running.
In addition, have in the prior art switchgear is divided into two or more compartments, but the gas that fills in each compartment being identical, all is SF
6Gas, the air pressure of compartment is inequality simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of low whole world warmization latent energy value, and can not make the switchgear of the environmental-protective gas-insulating vacuum extinction of decreasing insulating.
The utility model comprises the airtight container of enclosing insulating gas, and is arranged on vacuum circuit-breaker and isolation earthing switch in the sealing container.Described vacuum circuit-breaker and isolation earthing switch and described airtight container are in electric insulating state.Described airtight container is divided into two compartments.Described vacuum circuit-breaker and isolation earthing switch place two compartments respectively, and vacuum circuit-breaker and isolation earthing switch keep being electrically connected by sleeve pipe.Two compartments seal each other, the insulating gas difference that charges in two compartments.It is the fluorocarbon gas that contains carbon that the insulating gas that the compartment of vacuum circuit-breaker charges into is set, as octafluorocyclobutane (c-C
4F
8), octafluoropropane (C
3F
8) wait and nitrogen or CO
2Or or O
2Air mixing gas.Insulating gas that the compartment of isolation earthing switch charges into is set under electric arc, not producing carbon particulate, simultaneously very low the or N that do not have of greenhouse
2, dry air, O
2, gases such as rare gas.It is close that described two compartments charge into gas pressure.
The utility model can provide a kind of gas of low global warmization latent energy value that uses as the switchgear of dielectric, can prevent the insulation property deterioration of equipment simultaneously.Following advantage is arranged simultaneously, and gas pressure is close in two individual compartment, and gas is difficult for leaking mutually; N
2, dry air, O
2Rerum natura and air Deng gas are close, and be extraneous less to internal influence.
Description of drawings
Fig. 1 is the major part cutaway view of a kind of execution mode of the present utility model;
Fig. 2 is that presentation graphs 1 illustrated embodiment isolation earthing switch is in earthing position.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described further:
Fig. 1 is the major part cutaway view of a kind of execution mode of the present utility model.As shown in Figure 1, seal case 1 is divided into two compartment 1a and 1b by dividing plate 5; Vacuum circuit-breaker 3 is arranged among the first compartment 1a, and isolation earthing switch 4 is arranged among the second compartment 1b, keeps being electrically connected by sleeve pipe 6 between vacuum circuit-breaker 3 and the isolation earthing switch 4.For reducing the volume of switchgear, charge into the fluorocarbon gas that contains carbon among the first compartment 1a, as octafluorocyclobutane (c-C
4F
8), octafluoropropane (C
3F
8) wait and nitrogen or CO
2Or the mist of air etc.In addition, because 4 pairs of folding Capability Requirements of isolation earthing switch are very low, therefore use gas such as N2 also can satisfy the demands, the second compartment 1b charges into N
2, air, CO
2Deng low temperature chamber effect gas.Use described inflation method, even the volume of switchgear reduces, guarantee the reliability of equipment long-time running again.
Fig. 2 is that presentation graphs 1 illustrated embodiment isolation earthing switch is in earthing position.As shown in Figure 2, frame of broken lines comprises part and is the isolation earthing switch 4 that is in earthing position, and rotation electrode 8 links to each other with grounding electrode 9, and rotation electrode 8 is in state of insulation with stationary electrode 7.
Claims (4)
1. switchgear that uses the gas-insulated vacuum extinction of multiple gases, it is characterized in that, described switchgear comprises the airtight container (1) of enclosing insulating gas, and is arranged on vacuum circuit-breaker (3) and isolation earthing switch (4) in the described airtight container (1); Described vacuum circuit-breaker and isolation earthing switch and described airtight container (1) are in electric insulating state; Described airtight container (1) is divided into two compartments (1a, 1b) by dividing plate (5); Described vacuum circuit-breaker (3) and isolation earthing switch (4) place two compartments respectively, and vacuum circuit-breaker and isolation earthing switch keep being electrically connected by sleeve pipe (6); Two compartments (1a, 1b) seal each other, charge into different insulating gass in two compartments (1a, 1b).
2. according to the described switchgear of claim 1, it is characterized in that: described vacuum circuit-breaker (3) is arranged in first compartment (1a), and isolation earthing switch (4) is arranged in second compartment (1b).
3. according to the described switchgear of claim 2, it is characterized in that: the insulating gas that described first compartment (1a) charges into is the fluorocarbon gas that contains carbon; Described second compartment (1b) charges into N
2, or air, or CO
2
4. according to the described switchgear of claim 1, it is characterized in that: the pressure that described two compartments (1a, 1b) charge into gas is close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059837 CN203218781U (en) | 2013-02-01 | 2013-02-01 | Gas insulation vacuum arc extinguishing switch equipment using a plurality of gases |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320059837 CN203218781U (en) | 2013-02-01 | 2013-02-01 | Gas insulation vacuum arc extinguishing switch equipment using a plurality of gases |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203218781U true CN203218781U (en) | 2013-09-25 |
Family
ID=49208284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320059837 Expired - Fee Related CN203218781U (en) | 2013-02-01 | 2013-02-01 | Gas insulation vacuum arc extinguishing switch equipment using a plurality of gases |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203218781U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957663A (en) * | 2019-12-02 | 2020-04-03 | 中国科学院电工研究所 | Ternary mixed gas insulated switchgear with smell perception function |
| CN111128593A (en) * | 2020-01-03 | 2020-05-08 | 云南电网有限责任公司电力科学研究院 | High-altitude pole-mounted vacuum circuit breaker |
| CN112467598A (en) * | 2020-11-27 | 2021-03-09 | 中铁二院工程集团有限责任公司 | Environment-friendly gas full-sealed full-insulated switchgear |
-
2013
- 2013-02-01 CN CN 201320059837 patent/CN203218781U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957663A (en) * | 2019-12-02 | 2020-04-03 | 中国科学院电工研究所 | Ternary mixed gas insulated switchgear with smell perception function |
| CN111128593A (en) * | 2020-01-03 | 2020-05-08 | 云南电网有限责任公司电力科学研究院 | High-altitude pole-mounted vacuum circuit breaker |
| CN112467598A (en) * | 2020-11-27 | 2021-03-09 | 中铁二院工程集团有限责任公司 | Environment-friendly gas full-sealed full-insulated switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130925 Termination date: 20210201 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |