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