The hottest power equipment energy conservation po

2022-08-08
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Energy saving of power equipment: there is a wide space for policy support

Guide: energy saving methods have covered the whole industrial chain of power generation, transmission, transformation, distribution and utilization. Energy saving methods 242. The driving factors of tempered and semi tempered glass will largely determine the release of downstream demand, such as transformers, high-efficiency motors and frequency converters

at present, the energy-saving method has covered the whole industrial chain of power generation, transmission, transformation, distribution and utilization. The driving factors of the energy-saving method will largely determine the release of downstream demand, and then affect the final promotion effect of this energy-saving method

amorphous alloy transformer: benefiting from the localization of amorphous strip, it is expected to develop rapidly

placing the measured spring. At present, the efficiency of silicon steel core transformer used in China is 96%-99.7%. Due to the large number, the power consumption of transformer itself is also considerable. At present, the electric energy consumed by all transformers in China accounts for 5% - 10% of the national power generation. In 2010, the national power generation was 4141.3 billion kwh, and the loss of transformers was about 207 billion to 414.1 billion kwh, equivalent to 83.63 million to 167.26 million tons of standard coal, increasing carbon dioxide emissions by 220.25 million to 440.5 million tons. Transformer losses account for more than 60% of distribution losses. The popularization and application of amorphous alloy iron core transformers not only has remarkable energy-saving effect, but also is conducive to reducing environmental pollution

at present, amorphous alloy distribution transformers account for a very limited proportion of domestic electricity. In the field of 10kV distribution in China, the number of S9 type transformers is in the majority, accounting for about 83%, the proportion of S11 type distribution transformers is about 15%, and the proportion of SH15 amorphous alloy core distribution transformers is only 1.2%. Therefore, it is expected that there will be a large market space for amorphous alloy core distribution transformers in the next stage of agricultural transformation

during the 12th Five Year Plan period, one of the priorities of the national power work is to improve people's livelihood and strengthen power distribution construction, and it is planned to invest 420billion yuan for a new round of rural power transformation and upgrading projects. At the same time, the investment in the distribution and construction of the company will also increase year by year. The average annual planning investment of the 12th Five Year Plan is nearly 50 billion yuan, including customers from the automotive, construction, packaging, consumer goods and electronics industries, with a total investment of 227.9 billion yuan, accounting for 60% of the total electricity construction investment of the company. It is expected that amorphous alloy transformers will be popularized and used nationwide in the coming years, with great market development potential. If 20% of the distribution transformers newly put into use in China in the future adopt amorphous alloy transformers, the market capacity of amorphous alloy transformers will exceed 100million kVA. According to industry experts' estimates, the domestic amorphous alloy transformer market capacity will reach hundreds of billions of yuan, and the amorphous alloy transformer market will enter a high growth period

high efficiency and energy-saving motors: the subsidy is increased, and the promotion is expected to speed up.

China is a large country in motor manufacturing and use, and the power consumption and proportion of motors are very high every year. In 2010, China's electric power consumption was about 2trillion kwh, accounting for 60% of the country's total power consumption and 80% of industrial power consumption. At present, the main motors produced and in use in China are ordinary motors. The energy efficiency standard is at or below level 3, and the market share is close to 95%. The average efficiency is 87.3%, which is 3% lower than that of high-efficiency motors. If all the ordinary motors in use are replaced by high-efficiency motors, at least 60billion kwh of electricity can be saved every year, while the power generation of the Three Gorges power station in 2010 was 84billion kwh, and the power saving effect of high-efficiency motors is considerable. At the same time, after all ordinary motors are replaced with energy-saving motors, it is equivalent to saving more than 25 million tons of standard coal and reducing more than 50 million tons of carbon dioxide emissions every year

China's motor industry is relatively fragmented, and its comprehensive competitiveness is not strong. In 2010, the total output of 2400 motor manufacturing enterprises in China was 220 million KW. Although the total output value exceeded 60 billion yuan, there were only 11 enterprises with an annual output value of more than 1 billion yuan, and 85% of the enterprises had an annual output value of less than 30 million yuan. Even so, China's high-efficiency motor industry has formed a relatively complete industrial chain, with an annual production capacity of more than 30 million KW. At the same time, China is rich in rare earth resources, and cold-rolled silicon steel, red copper, pure aluminum and other raw materials have strong production capacity. Abundant raw material resources must meet the requirements of regulations and quality, creating favorable conditions for the development of high-efficiency and energy-saving motors

on March 10, 2011, the Ministry of Finance and the national development and Reform Commission issued the notice on doing a good job in the promotion of high-efficiency motors in 2011, increased subsidies for high-efficiency and energy-saving motors, and announced the second batch of high-efficiency motor products shortlisted for promotion. Up to now, the national development and Reform Commission and the Ministry of finance have successively released two batches of high-efficiency motor promotion catalogue, with a total of 9740 motor products of specifications and models shortlisted in the promotion catalogue. Among them, the first batch of promotion catalogue includes 1061 model products from 14 enterprises, and the second batch of promotion catalogue includes 8409 model products from 50 enterprises

frequency converter: it has good energy-saving effect and wide development space.

frequency converter is a high-tech product with high technology content, high added value and high return. The initial use of frequency converter is not to save energy, but to replace DC drive with AC drive and meet the requirements of process control. With the development of automation, power electronics and other technologies, frequency converter, as the key equipment of motor speed regulation and energy saving, has changed the old mode that ordinary motors can only operate at a constant speed, so that the motor and its driving load can adjust the speed output according to the production process requirements without any change, so as to reduce the power consumption of the motor and achieve the purpose of efficient operation of the system

at present, the power saving rate of the general frequency converter is about 20%-30%, and the maximum can even exceed 50%. The energy-saving effect of the frequency converter is very related to the working condition parameters of the application environment. Whether the parameter setting of the motor operating condition is reasonable, the variation characteristics of the load, and the initial adjustment and speed regulation mode of the equipment can directly affect the power saving effect of the frequency converter. With the rapid development of frequency conversion technology and the expansion of product functions, frequency converters have been unprecedentedly developed and applied in modern industries such as cement, elevator, printing, electric power, medicine, communication, transportation, electric power, electronics, environmental protection and other fields. Almost all industries of the national economy are inseparable from frequency converters. According to the price estimation of 720 yuan/kw, even without considering the new motor, the market scale of frequency converter in China has reached 73.1 billion yuan, and the development space is very broad

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