In April 2013, "ZN91-40.5" wind power circuit breaker produced by Fuzhou Tianyu Electric Co., Ltd. successfully passed the low temperature test (-40 ℃) in "Fujian Institute of Product Quality Inspection and Research".
Wind power is the most mature technology for developing and utilizing green renewable energy and has become an important part of China's energy development strategy. However, the natural environment conditions of wind farms are often harsh. In our country, a large number of wind farms are concentrated in the wind energy-rich Inner Mongolia Prairie and the western deserts. In winter, the arctic temperature can be reduced to -40 ° C, 35kV indoor circuit breakers that can be delivered to the center substation line face enormous challenges. For ordinary indoor circuit breaker products, only -5 ℃ above the ambient temperature of normal work, even the highest level of the lowest temperature products can only work at -25 ℃ above the ambient temperature (GB highest level - 25 ° C). As a result, indoor products used in the north tend to require heating (heating) equipment inside the house, whereas un-delivered distribution rooms often fail to provide heating power, and many wind farms often do not have heating equipment to reduce operating costs Urgent need to be able to adapt to indoor conditions of the circuit breaker products. However, at present, almost no domestic manufacturers can produce suitable for less than -25 ℃ ambient temperature 35kV indoor circuit breaker products, our technical personnel through repeated experimental studies, through the different materials, transmission and lubricating medium circuit breaker temperature Performance of the repeated comparison and study, and ultimately find a more ideal solution to the successful solution to the problem of low temperature products, to fill the -40 ℃ domestic indoor circuit breaker products in the blank for the arctic areas of the user provides A high-performance product. At present, the product has been successfully applied in the "China Power United Power (Shanxi Yanmenguan)", "State Power Laoting" and other projects.
Aluminum plate refers to the aluminum material with a thickness of more than 0.2mm to less than 500mm, a width of more than 200 mm, and a length of less than 16m, which is called aluminum plate or Aluminum Sheet. Aluminum plate with a thickness of less than 0.2mm is called aluminum material, and aluminum plate with a width of less than 200 mm is called row material or strip material (of course, with the progress of large equipment, there are more aluminum plates with a maximum width of 600 mm).
Aluminum plate refers to the rectangular plate rolled by aluminum ingot, which is divided into pure aluminum plate, alloy aluminum plate, thin aluminum plate, medium thick aluminum plate and patterned aluminum plate.
Aluminum plate, aluminum rolling plate, Extrusion Aluminum plate
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