CN88103292A - Gas circuit-breaker - Google Patents
Gas circuit-breaker Download PDFInfo
- Publication number
- CN88103292A CN88103292A CN 88103292 CN88103292A CN88103292A CN 88103292 A CN88103292 A CN 88103292A CN 88103292 CN88103292 CN 88103292 CN 88103292 A CN88103292 A CN 88103292A CN 88103292 A CN88103292 A CN 88103292A
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- CN
- China
- Prior art keywords
- gas
- liquidceiver
- breaker
- heater
- grounding container
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- 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.)
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- Circuit Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
A kind of gas circuit-breaker comprises filling SF
6The grounding container of gas is configured in the above-mentioned grounding container and contains the arc control device of a pair of contact at least, is located at the bottom of above-mentioned grounding container and accumulates the dirty SF in liquefaction back
6Liquidceiver, and make the heater of above-mentioned liquidceiver heating.The outside of heater can have insulation material.So just can prevent SF in the circuit breaker with the very little heater of capacity
6The density of gas reduces, and can keep good insulation performance performance and arc extinction performance, is suitable for using at severe cold area.
Description
The present invention relates to the electric power circuit breaker, particularly be suitable for the gas circuit-breaker that uses at severe cold area.
Sulphur hexafluoride SF
6Because arc extinction performance and withstand voltage properties are superior, and are widely used in gas circuit-breaker.
Fig. 4 is the profile of an example of the existing gas circuit-breaker of expression.Be provided with insulation pad 3 in arm 2, this arm then is arranged on the bottom of grounding container 1, has at 4～6kg/cm in this grounding container
2The SF that encloses down of pressure
6Gas, the top arc control device 4 that then maintain of insulation pad 3.On grounding container 1, maintain the conductor 6 that links to each other with arc control device 4, be equipped with the porcelain bushing 7 that insulate over the ground simultaneously.
Above-mentioned gas circuit-breaker is by the SF with the inside that is sealing into porcelain bushing 7 and grounding container 1
6The conductor 6 that gas insulate over the ground is to by the insulation pad 3 in the grounding container 1 with by SF
6The arc control device 4 that gas insulate are over the ground switched on to turn round.And produce the occasion of the phenomenon of ground connection etc. in transmission system, immediately signal is delivered to not shown operating means, disconnection arc extinguishing chamber 4 is sprayed SF simultaneously
6Gas cuts off circuit.
But, SF
6Has rerum natura shown in Figure 5, for example at 5kg/cm
2The SF that enclosed down of pressure
6Gas just begins liquefaction when changing to approximately below-32 ℃, and liquefies in progress along with the reduction of temperature.The SF in the gas phase consequently
6The density of gas reduces, thereby insulation property and arc extinction performance also reduce.Therefore the problem that exists at severe cold area is circuit breaker to be arranged on indoor that temperature can not reduce significantly, perhaps being arranged on outside occasion, large-scale heat-preserving equipment is set.
The present invention proposes in order to solve the above problems, and its purpose is to obtain by making the SF of liquefaction
6Even thereby rapid evaporation its insulation property and arc extinction performance when severe cold gas circuit-breaker that also can not reduce expeditiously.
Gas circuit-breaker according to the present invention makes is enclosing SF
6The bottom of the grounding container of gas is provided with can accumulate the dirty SF in liquefaction back
6Liquidceiver, on this liquidceiver, heater is housed and makes it localized heating.
Gas circuit-breaker among the present invention, the SF that will in container and porcelain bushing, liquefy
6Focus in the liquidceiver, liquidceiver is heated, make liquefaction SF with the heater concentrated area
6Gasify expeditiously, to prevent the SF in the gas phase
6Gas density reduces.
Below just Fig. 1～Fig. 3 embodiments of the invention are described.
As shown in Figure 1, in the arm 2 of the bottom that is arranged on metal grounding container 1, insulation pad 3 is set, and has at 5kg/cm in this grounding container 1
2The SF that encloses down of pressure
6Gas maintains the arc control device 4 of accommodating a pair of contact on insulation pad 3.Maintain the conductor 6 that is connected with arc control device 4 on the top of grounding container 1, be equipped with the porcelain bushing 7 that insulate over the ground simultaneously.And, be provided with in order to accumulate the SF after the liquefaction in the bottom of grounding container 1
6The cylindrical shape liquidceiver 8 of gas, the bottom of this groove are positioned at the liquefaction SF than grounding container
6The part of accumulating, the i.e. lower place of arm 2.Between arm 2 and liquidceiver 8, be provided with in order to will run down into the liquefaction SF on the arm 2
6Be directed to the conduit 10 in the liquidceiver, and heater 9 be housed in the outside of liquidceiver 8.
On above-mentioned gas circuit-breaker, reduce as outside air temperature, then SF on the wall of the high grounding container 1 of metal pyroconductivity
6Gas begins liquefaction.Liquid SF
6Dirty and accumulate in the liquidceiver 8, a part runs down into the liquid SF of arm 2
6Also in conduit 10 is accumulated liquidceiver 8.And the liquid SF in the liquidceiver 8
6Heat and gasification rapidly by heater 9 concentrated areas.Gas circuit-breaker of the present invention like this is owing to can make liquid SF by localized heating
6Gasify expeditiously, as long as just can fully prevent SF in the circuit breaker with the very little heater of capacity
6Gas density reduces, and keeps good insulation performance performance and arc extinction performance.
As shown in Figure 2,, the efficiency of heating surface is further improved by being incubated with 11 pairs of heaters of insulation material again.
Moreover, be provided with liquidceiver 8 in the above-described embodiments and be positioned at the occasion of the foot of grounding container 1 at arm 2, as shown in Figure 3 with arm 2 as liquidceiver, and with heater 9 be arranged on arm 2 around also can obtain same effect.
Gas circuit-breaker of the present invention is accumulated liquefaction SF owing to the foot at grounding container is provided with the concentrated area
6Liquidceiver, and can be to the SF of liquefaction by heater is installed on this liquidceiver
6Heat expeditiously, so just can prevent SF in the circuit breaker with the very little heater of capacity
6The density of gas reduces, and can keep good insulation performance performance and arc extinction performance.
Fig. 1, Fig. 2, Fig. 3 are for representing the sectional view of embodiments of the invention; Fig. 4 is the sectional view of the existing example of expression; Fig. 5 is expression SF
6The figure of the pressure-temperature characteristic of gas.
1. be grounding container
2. be arm
4. be arc control device
8. be liquidceiver
9. be heater
11. be insulation material
Claims (2)
1, a kind of gas circuit-breaker, its feature comprises:
Filling SF
6The grounding container of gas,
Be configured in the above-mentioned grounding container and contain the arc control device of a pair of contact at least,
Be located at the bottom of above-mentioned grounding container and accumulate the dirty SF in liquefaction back
6Liquidceiver, and
Make the heater of above-mentioned liquidceiver heating.
2, gas circuit-breaker as claimed in claim 1 is characterized in that above-mentioned heater has insulation material in its outside.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP83732/87 | 1987-05-29 | ||
| JP8373287 | 1987-05-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88103292A true CN88103292A (en) | 1988-12-07 |
Family
ID=13810694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88103292 Pending CN88103292A (en) | 1987-05-29 | 1988-05-28 | Gas circuit-breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88103292A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103548222A (en) * | 2011-05-24 | 2014-01-29 | 施耐德电器工业公司 | Electrical apparatus having a gas insulation containing a fluorinated compound |
| WO2014114209A1 (en) * | 2013-01-22 | 2014-07-31 | Jin Haiyong | Sulphur hexafluoride high-voltage electrical device for cold region |
| EP3799233A1 (en) * | 2019-09-30 | 2021-03-31 | General Electric Technology GmbH | Gas insulating device with anti-liquefaction means |
-
1988
- 1988-05-28 CN CN 88103292 patent/CN88103292A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103548222A (en) * | 2011-05-24 | 2014-01-29 | 施耐德电器工业公司 | Electrical apparatus having a gas insulation containing a fluorinated compound |
| CN107196227A (en) * | 2011-05-24 | 2017-09-22 | 施耐德电器工业公司 | With the gas isolated electrical equipment containing fluorochemical |
| WO2014114209A1 (en) * | 2013-01-22 | 2014-07-31 | Jin Haiyong | Sulphur hexafluoride high-voltage electrical device for cold region |
| WO2014113912A1 (en) * | 2013-01-22 | 2014-07-31 | Jin Haiyong | Sulfur hexafluoride high-voltage electrical equipment used in cold regions |
| EP3799233A1 (en) * | 2019-09-30 | 2021-03-31 | General Electric Technology GmbH | Gas insulating device with anti-liquefaction means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| RJ01 | Rejection of invention patent application after publication |