充氣柜從世界范圍來看，充氣機發(fā)展迅速，使用量急劇增加。 以德國為例，幾年前對工業(yè)電網(wǎng)使用的中壓開關設備進行了調(diào)查，當時儲氣罐12kV為5%、24kV為9%、36kV為19%，而根據(jù)2003年報道，儲氣罐為新設備的50%。

From a global perspective, inflatable lockers have developed rapidly and their usage has increased sharply. Taking Germany as an example, a few years ago, a survey was conducted on the medium voltage switchgear used in industrial power grids. At that time, the gas storage tank was 5% for 12kV, 9% for 24kV, and 19% for 36kV. According to a report in 2003, the gas storage tank accounted for 50% of the new equipment.

充氣柜的結構特征

Structural characteristics of inflatable cabinets

綜合看不同型號的西門子充氣機，有共同的結構特點：

Taking a comprehensive look at different models of Siemens inflators, they share common structural characteristics:

1)采用固定式結構技術、免維護真空斷路器技術，取代操作次數(shù)有限的中式手車式少油斷路器。

1) Adopting fixed structure technology and maintenance free vacuum circuit breaker technology to replace the traditional Chinese handcart type low oil circuit breaker with limited operation times.

2)隔離開關和接地開關組合為3站開關，取代了單一開關，大幅減少了空間和聯(lián)鎖工作。

2) The combination of isolation switch and grounding switch forms a 3-station switch, replacing a single switch and significantly reducing space and interlocking work.

3)變流器采用環(huán)芯式變流器代替承受高價電氣負載的一般注形絕緣變流器。

3) The inverter adopts a ring core inverter instead of a general injection molded insulation inverter that can withstand high electrical loads.

4)采用優(yōu)良的SP6氣體絕緣技術代替空氣絕緣，無需各個開關元件的維護和修理作業(yè)。

4) Using excellent SP6 gas insulation technology instead of air insulation, there is no need for maintenance and repair of various switch components.

5)電纜連接采用全絕緣和防觸電的插入式代替普通的電纜連接器。

5) The cable connection adopts fully insulated and anti electric shock plug-in type instead of ordinary cable connectors.

充氣柜的關鍵技術

Key Technologies of Inflatable Cabinets

1)通過將充氣柜的外殼焊接成氣密式結構，排除環(huán)境因素的影響。 SF6氣體的絕緣強度是空氣的2.倍，從而獲得了省空間的好處，減少了樓盤物的面積，取得了良好的經(jīng)濟效果。

1) By welding the outer shell of the gas filling cabinet into an airtight structure, the influence of environmental factors can be eliminated. The insulation strength of SF6 gas is twice that of air, which benefits from saving space, reducing the area of buildings, and achieving good economic results.

2)采用激光焊接技術，防止SF6絕緣氣體流失，防止?jié)駳馊肭帧?該激光焊接的充氣機滿足IEC60698和VDE0670第1000部分標準對氣密壓力系統(tǒng)的要求。

2) Using laser welding technology to prevent SF6 insulation gas loss and moisture intrusion. The laser welded inflator meets the requirements of IEC60698 and VDE0670 Part 1000 standards for airtight pressure systems.

3)氣體的氣密性由與各殼體一體化的泄漏檢查裝置定期檢查。

3) The gas tightness is regularly checked by a leak detection device integrated with each shell.

4)必要的操作工作從充氣機的外部傳遞到內(nèi)部，通過波紋管進行。

4) The necessary operational work is transmitted from the outside to the inside of the inflator through a corrugated tube.

5)收納在柜內(nèi)的電氣部件通過焊接的套筒向外連接到電纜和母線上。

5) The electrical components stored in the cabinet are connected outward to the cables and busbars through welded sleeves.

6)充氣柜的動作準備狀態(tài)的顯示通過放入機殼內(nèi)的測量盒以磁耦合的方式非接觸地顯示在外部。

6) The display of the action preparation status of the inflatable cabinet is non-contact displayed externally through a measurement box placed inside the casing in a magnetic coupling manner.

7)為了確認有無電壓，在焊接于殼體內(nèi)的套筒中澆鑄電容器芯片。 在面板上安裝插座，可以在外面用電壓測量裝置檢查有無電壓。

7) To confirm the presence or absence of voltage, a capacitor chip is cast into the sleeve welded inside the casing. Install sockets on the panel and use voltage measuring devices to check for voltage outside.

8)一般在殼體內(nèi)焊接同種的釋放裝置。

8) Generally, the same type of release device is welded inside the shell.

上述結構措施保證了不受外部環(huán)境的影響，免維護及結構的緊湊性。 在充氣柜的使用情況下，充氣機由于其結構優(yōu)勢，在一般空氣絕緣柜不能使用的地方，例如溫度變化大，高濕環(huán)境，例如濕熱帶地區(qū)，高溫及低溫地區(qū)，例如沙漠地區(qū)和南北兩地區(qū)，環(huán)境中有自然物質(zhì)，例如沿海的鹽霧

The above structural measures ensure that it is not affected by external environment, maintenance free, and compact in structure. In the use of inflatable cabinets, due to its structural advantages, the inflator can be used in places where general air insulated cabinets cannot be used, such as areas with large temperature changes, high humidity environments, such as humid tropical regions, high and low temperature areas, such as desert areas and northern and southern regions, where there are natural substances in the environment, such as salt spray along the coast

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