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Anonymous users2024-02-06Small size, light weight and high efficiency.
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Anonymous users2024-02-051. Medium voltage switch.
At present, the rapid development of switches is mainly related to the following factors: (1) the development of urbanization construction in China and the construction and transformation of cities. China's urbanization rate is still relatively low, with the further improvement of China's urbanization rate will also give rise to a large number of demand for medium voltage switches.
2) The construction of railway electrification and subway and other rail transit construction has also brought a large number of medium-voltage switchgear. The degree of railway electrification in China is still relatively low, and the "12th Five-Year Plan" and "13th Five-Year Plan" period have a large demand for railway construction investment, while dozens of cities in China have started the construction of subway and light rail, medium voltage switch as a supporting product for these projects, will give rise to a large number of demand. (3) Large-scale engineering and municipal engineering construction is also one of the most important demand forces for medium voltage switches.
In particular, large-scale projects such as hydropower construction, south-to-north water diversion, west-to-east gas transmission, west-to-east power transmission, and the Olympics and World Expo all require a large number of medium-voltage switches to be matched.
2. High-voltage switch.
More than 60% of China's coal resources are concentrated in the large coal power base represented by the "Three Wests", more than 70% of the hydropower resources are distributed in the southwest region, more than 60% of the solar and wind energy resources are distributed in the western and northern regions, and more than 60% of China's electricity load is concentrated in the eastern region. The distance between the resource load area and the resource endowment area is basically more than 800 kilometers, and some even exceed 3,000 kilometers, and the existing power grid can no longer meet the demand for large-scale power distribution. At present, the power gap in the "Sanhua" area is as high as 30 million kilowatts, while the power surplus in the "Sanbei" area is 27 million kilowatts.
It is difficult to achieve a balance between supply and demand by not having a grid line to connect several places. UHV construction has a great inevitability in China.
In the second half of 2012, the possibility of the construction of the Ximeng-Nanjing line is very large, and the construction of the line will effectively enhance the performance growth space of related companies. The construction of the Hami-Zhengzhou and Xiluodu-Zhexi DC lines has already begun, and it is possible to approve the construction of Zhundong-Chongqing in the second half of 2012.
From the point of view of the Ximeng-Nanjing line, there are 6 stations and 57 intervals, and the market capacity of UHV GIS is about 6000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 According to the current market competition pattern, the three major openings are expected to maintain a stable competition pattern of 40% of the market share of the flat high, and 30% of the market share of the West and Shenkai.
At present, the domestic enterprises with a full set of qualifications are only Pinggao Electric, the main competitor is ABB, on the whole, the competition of UHV DC isolating switch is limited, the gross profit margin is high, but the market space is not large. Since DC UHV is point-to-point transmission, the demand for switches is small, and the demand for an ultra-high line DC isolation switch is tens of millions of yuan, and the overall market space is not large.
The information is provided by Hongbo Report Network economic analysts, I hope it will be helpful to you!
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Anonymous users2024-02-04No, although there are many brands of switches and sockets, there is still a market, as long as your promotion efforts reach excellent quality, you can still get a piece of the pie.
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Anonymous users2024-02-03The switching power supply maintenance industry is an emerging industry. Industrial repairs are divided into board-level repairs and chip-level repairs. Switching power supply maintenance belongs to the category of chip-level maintenance.
As an important starting part of industrial equipment, the power supply part is the premise of the normal operation of industrial equipment and plays an extremely important role.
The computer part is the power source of other components such as the motherboard, control board, CPU, hard disk, etc., and it is not an exaggeration to say that the power supply is the heart of the device. Moreover, power failures are more common than motherboard failures and control failures, so they are worth paying attention to.
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Anonymous users2024-02-02Switching power supplies are widely distributed in the power supply parts of all automation equipment and electronic equipment such as industry, industrial control, property, factory, computer room, office, civil and so on. Switching power supplies have a lot of advantages. Small size, high efficiency, fast heat dissipation, relatively linear power supply manufacturing cost is not high in use, filial piety application is more and more common, maintenance is also more convenient.
With the development of the market, there is now a huge market demand as well as a maintenance gap.
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