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2015
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05
China's future transformer will be the main "energy-saving card"
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According to the requirements of the "Twelfth Five-Year Plan" for energy conservation and emission reduction, the loss of power transformers will be reduced during the "Twelfth Five-Year Plan" period, of which the no-load loss will be reduced by 10%-13% and the load loss will be reduced by 17%-19%. Therefore, the implementation of energy-saving product substitution for high-energy transformers running on the grid has become an industry trend. At present, under the background of national efforts to promote energy conservation and emission reduction, both the State Grid and the Southern Power Grid have taken the replacement of energy-saving transformers as a major measure to reduce power grid losses, which brings many market opportunities to energy-saving transformer manufacturers, and even has a guiding and reshaping role for the entire energy-saving transformer market. Change
According to the requirements of the "Twelfth Five-Year Plan" for energy conservation and emission reduction, the loss of power transformers will be reduced during the "Twelfth Five-Year Plan" period, of which the no-load loss will be reduced by 10%-13% and the load loss will be reduced by 17%-19%. Therefore, the implementation of energy-saving product substitution for high-energy transformers running on the grid has become an industry trend.
At present, under the background of national efforts to promote energy conservation and emission reduction, both the State Grid and the Southern Power Grid have taken the replacement of energy-saving transformers as a major measure to reduce power grid losses, which brings many market opportunities to energy-saving transformer manufacturers, and even has a guiding and reshaping role for the entire energy-saving transformer market.
Transformers have great energy-saving potential. An expert from the National Transmission and Distribution Technology Cooperation Network said that transformers are key electrical equipment for power transmission. Due to the large number of transformers, the power consumed by the transformers themselves is also considerable. Relevant data show that at present, all transformers in China consume 3%-10% of the country's power generation. In the distribution network loss, the transformer loss accounts for 40%-60%, and the energy saving potential is huge.
According to the requirements of the Twelfth Five-Year Plan for Energy Conservation and Emission Reduction, the loss of power transformers will be reduced during the Twelfth Five-Year Plan, of which no-load loss will be reduced by 10%-13% and load loss will be reduced by 17%-19%. Therefore, the implementation of energy-saving product substitution for high-energy transformers running on the grid has become an industry trend.
It is understood that energy-saving distribution transformers include amorphous alloy core transformers, capacity-regulating transformers, etc. Such as amorphous alloy transformer, is an energy-saving transformer developed in the 1970 s. Due to the use of a new soft magnetic material amorphous alloy, the performance of the amorphous alloy transformer exceeds that of the traditional silicon steel transformer. After calculation, amorphous alloy transformer than the traditional silicon steel sheet transformer no-load loss decreased by about 80%, no-load current decreased by about 85%, is the current energy-saving effect of the ideal distribution transformer, but its price and raw material supply does not have advantages.
The market has not yet fully started. Industry insiders told reporters that at present, China's energy-saving distribution transformer market is scattered, coupled with the constraints of low industry threshold, uneven enterprises, lack of identification and standards, weak technological innovation and other factors, resulting in slow promotion of energy-saving transformers.
According to reports, China's transformer has experienced S7, S8, S9, S10, S11 and other series of replacement process. As early as the mid-1980s, the Chinese government forcibly adopted the S7 series of low-loss distribution transformers to phase out the JB1300-73 and JB500-64-standard high-energy transformers operating in the power grid at that time. Since 1998, the country has implemented the transformation of urban and rural power grids, replacing S7 series with S9 series distribution transformers. In recent years, S13 and S15 products have been adopted in large quantities in the transformation of national urban power network and rural power network, and their no-load loss is 50%-80% lower than that of S9 transformer.
In order to promote the application of energy-saving transformers, the Ministry of Finance, the Ministry of Industry and Information Technology and the National Development and Reform Commission jointly issued the "Implementation Rules for the Promotion of High-efficiency and Energy-saving Distribution Transformers for Energy-saving Products Benefiting the People" as early as 2012, and provided 4 yuan -30 yuan/kVA for energy-saving transformers. Financial subsidies.
A person in charge of a transformer manufacturer told reporters that due to factors such as raw materials, the cost of energy-saving transformers is significantly higher than that of traditional transformers, and the price factor is also the main factor affecting the popularization and promotion of energy-saving transformers. Although there are energy-saving subsidy projects to support energy-efficient transformers, the market has not yet fully started.
In fact, in addition to financial support, the industry has been trying to promote transformer products to improve energy efficiency through standard-setting upgrades.
Zhao Yuejin, a senior engineer at the China National Institute of Standardization, witnessed the improvement of transformer energy efficiency standards. According to its introduction, the revision of the GB20052 standard completed in October 2012 has improved the energy efficiency limit value level and the energy saving evaluation value level. In 2013, the National Standardization Management Committee issued the GB20052-2013 "Three-phase Distribution Transformer Energy Efficiency Limits and Energy Efficiency Grades" announcement, which was implemented on October 1, 2013. In the past, the era when distribution transformers were divided by S7, S9, S11 and so on ended. To measure whether transformers are energy-saving, they are divided by primary, secondary and tertiary energy efficiency. Energy efficiency standards have opened a new era of energy-saving transformers. The new energy efficiency standard puts forward higher energy efficiency requirements for products, and is also expected to change the market pattern of transformers.
Or into a breakthrough out of the industry dilemma China's transformer industry is large, but the majority of small and medium-sized enterprises, the concentration is not high, manufacturers are more scattered. Overcapacity and quality problems have become an industry dilemma that the transformer industry cannot ignore.
According to the research report of China Research Institute and Puhua, in recent years, China's transformer enterprises have been operating in a low-efficiency environment, and the phenomenon of overcapacity is particularly serious. China's annual demand for transformers is about 1.5 billion kVA, while the transformer industry capacity is about 3 billion kVA.
An expert from the National Center for Quality Supervision and Inspection of Medium and Low Voltage Transmission and Distribution Equipment told reporters that the promotion of energy-saving transformers will not only effectively help energy conservation and emission reduction, but more importantly, it can open a breakthrough for the transformer industry that is deeply trapped in overcapacity. The effect of killing two birds with one stone.
However, it is understood that energy-saving transformers also need to solve some problems in their own development. Such as improving functional stability and anti-short-circuit ability. In addition to technical problems, testing standards and testing methods are still lagging behind product development, and there is a lack of product performance evaluation, rating systems and methods that can reflect different design levels and manufacturing processes.
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