Abbs Work Out Machine
Domestic And Foreign High-Voltage Vacuum Contactors Analysis Of Development Trend
Foreign vacuum contactor early only to maintain power, after the market needs, have to install a mechanical locking body. Performance of the best insulating frame of unsaturated polyester materials made to suppress; contact material for CuW alloys; vacuum interrupter for a multi-row closure process. Of its stable performance, compact structure, light weight, pleasing in appearance, while dimensions are relatively the school 70 years in China in the 20th century, developed a 3 ~ 6kV high-voltage vacuum contactors, vacuum contactor after the development boom in the domestic rise, many manufacturers, or the introduction of high-voltage vacuum contactors, structure and layout for the upper and lower before and after the layout, with lock body, rated voltage of 3.6kV, 7.2kV, 12kV, rated current with 250A, 400A, 630A.
The world's first high-voltage vacuum contactors by the British company GEC developed in 1965, the structure around the layout, its rated voltage 6kV, rated current of 400A. 90 mid-20th century, Germany's Siemens has developed a series of high-voltage vacuum contactor 3TL8 structure for the layout from top to bottom, rated voltage of 7.2kV, rated current 400A. ABB, in the 20th century and the early 90s, about the structure of ZVC introduced high-pressure vacuum contactors, rated voltage of 12kV, rated current of 400A, is mainly used for F-C circuit switch cabinet.
Foreign vacuum contactor early only to maintain power, after the market needs, have to install a mechanical locking body. Performance of the best insulating frame of unsaturated polyester materials made to suppress; contact material for CuW alloys; vacuum interrupter for a multi-row closure process. Of its stable performance, compact, light weight, pleasing in appearance, while dimensions are relatively the school my 70 years in the 20th century, developed a 3 ~ 6kV high-voltage vacuum contactors, vacuum contactor after the development boom in the domestic rise, many manufacturers, or the introduction of high-voltage vacuum contactors, structure and layout for the upper and lower before and after the layout, with lock body, rated voltage of 3.6kV, 7.2kV, 12kV, rated current with 250A, 400A, 630A.
Domestic high-voltage vacuum contactors are used throughout the framework of the basic design of the composite insulation, with better performance of the insulation material is compressed into into. Of its stable performance, compact structure, filial piety, light weight, beautiful appearance. Vacuum Interrupter Contact Materials CuW alloy materials for a simple flat structure. Manufacturing process technology with a row of letters. To increase production and reduce costs.
Vacuum contactor in the future should fine direction. First, the serialization of the direction of large-capacity development; 2 to the smaller and lighter, the direction of development, the development of new insulation materials should increase the insulation properties; third is to improve product life, improve product reliability to meet the product low maintenance or maintenance-free.
In general, the product is to develop a lot of work to be done, with the continuous development of distribution network automation, power distribution switches will be the new structure, low cost, high-intelligent control technology, the 21st century intelligent switch.
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