Under the background of "double carbon", the green transformer has excellent performance and has a bright future

　　On December 13, the "2021 Online Media Conference on the Promotion of Green Transformers to Low-Carbon Economy and Development Prospects" was held in Beijing. Reporters from more than 10 media including industry, electric power, science and technology, and construction attended the meeting.

　　The purpose of this meeting is to combine the "Opinions on Completely Accurately Implementing the New Development Concept and Doing Carbon Neutral Work" issued by the Central Committee of the Communist Party of China and the State Council on September 22, 2021. New energy power generation, building a new power system, improving the level of social electrification" and other related spirits, through policy interpretation, situation analysis, enterprise promotion and other content, to vigorously promote the development of green transformers under the background of "double carbon" to create a good development environment and public opinion atmosphere .

　　The meeting was presided over by Zhang Lingyu, manager of the transformer project team of the International Copper Association.

　　At the meeting, relevant experts and business representatives gave wonderful speeches. Zhang Lingyu introduced the raw material consumption, industrial scale, and number of enterprises in the transformer industry in the report "Overview of Green Development of Transformer Industry". According to him, transformer users are involved in all aspects of the whole society, including power plants, power grids, transportation, construction, industry, cities, and civil buildings. Therefore, the green development of transformers will play an important role in driving upstream and downstream enterprises and users. In addition, the development of green transformers will make a positive contribution to the emission reduction work of the whole society.

　　Zhang Lingyu also introduced the concept of ESG, which refers to the environment (E), society (S) and corporate governance (G), which is an important assessment indicator for listed companies in the world besides financial indicators. By improving their ESG, that is, promoting green products and establishing their own green supply chain, companies can better attract investment, obtain higher ESG ratings, and be more easily recognized and purchased by society, government and users.

　　Luo Hong, deputy secretary-general of the China Federation of Industrial Economics Think Tank for Enterprise Rights Protection, analyzed the situation from the current policy orientation: all economic work will be transformed to a green, low-carbon and circular economy; the energy system will be transformed to a clean, low-carbon, safe and efficient; industry, residents, cities, The whole society is transforming to a high-efficiency system; the whole society is transforming from a production and lifestyle dependent on petrochemical energy to clean energy and non-fossil energy production and consumption. Under the very favorable situation of the national macro policy, green transformers are bound to usher in rapid development.

　　Shao Ting, director of the Designer Technology Exchange Center of Shanghai Electrical Engineering Design and Research Association, pointed out that green transformers have developed into a new generation of transformers, which have comprehensive advantages in terms of safety performance, energy efficiency, environmental protection and low carbon. In civil construction projects and industrial construction projects, our designers attach great importance to the development of green transformers, and have selected a large number of green transformers in projects. With the gradual formulation of some new standards and policies, such as the guidelines for ecological products that are being formulated, it is believed that green transformers will have a broader market space.

　　Liu Changying, director of the strategic market development department of Haihong Electric Co., Ltd., pointed out that the three-dimensional wound iron core transformer has ushered in a period of comprehensive development. Standardized products of iron core transformers account for 50% of each, and high-efficiency energy-saving transformers are purchased. The proportion of three-dimensional wound core transformers in the bidding volume of the State Grid has increased from 20% to 50%. At the same time, China Southern Power Grid has fully adopted the 2-level energy efficiency (S20 oil-immersed transformer and SGB14 dry-type transformer) that meets the requirements of the new energy efficiency standard in the 2021 bidding. The open three-dimensional wound iron core dry-type transformer and the 110 kV three-dimensional wound iron core power transformer are listed in the new technology catalogue of China Southern Power Grid Corporation.

　　The four major green transformer product series of Haihong Company are: open three-dimensional wound core dry-type transformer, 110kV three-dimensional wound iron core power transformer, amorphous alloy three-dimensional wound iron core transformer, photovoltaic intelligent double-layer double-transformer box-type substation, which have already gained popularity in the market. Highly recognized and widely used.

　　Jin Yonghua, chairman of Shanghai Zhenger Technology Intelligent Co., Ltd., pointed out in the report that the silicone rubber dry-type transformer is a major breakthrough and independent innovation in the green technology of transformers in my country. The silicone rubber dry-type transformer has passed the appraisal of the expert group and its performance has reached the international leading level of similar products . The material recovery rate is 99%, the production energy consumption is only 10% of the conventional transformer, the combustible material is less than 2%, the 2500 kVA capacity can reduce the noise to less than 55 decibels, and the 1000 kVA capacity can reduce the noise to less than 45 decibels, allow long-term overload of 20%, maintenance-free. According to the new standard "GB20052-2020", the no-load loss of the recently launched new products can be reduced by another 15% compared with the first-class energy efficiency, and the load loss can be reduced by another 10%, realizing the energy saving level of the super-first-class energy efficiency.

　　Li Songjiang, Marketing Director of Wuhan New Materials Technology Development Co., Ltd., put forward green and low-carbon "oil" as an important initiative.

　　After testing, the carbon emission of vegetable insulating oil (transformer) in the whole life cycle is only 1/64 of that of mineral oil. The degradation rate of vegetable insulating oil exceeds 98%, which will not cause harm to the environment and human body. Its ignition point and lightning are 2 times lower than mineral oil. According to the National Development and Reform Commission's "National Key Energy-saving and Low-Carbon Technology Promotion Catalog", it is estimated that in the next five years, the total amount of mineral insulating oil used in transformers will reach 600,000 tons. Calculated based on the promotion ratio of vegetable insulating oil to 50%, it can form an annual carbon emission reduction. 950,000 tons of carbon dioxide.

　　Li Songjiang also introduced various application cases of vegetable oil in detail, such as transformers above 110 kV, new energy, environmental protection applications, power grids, etc., as well as application cases of instantly turning traditional transformers green by changing oil.

　　Through the explanations of experts and enterprise representatives, everyone further understood the technological innovation and progress of green transformers, and understood the contribution and role of green transformers to the low-carbon economy. It is agreed that it is the general trend and imperative to actively promote and promote the development of green transformers.