In the big market of smart grid, small and small transformers are shocked, not only in the construction of many venues such as Beijing Olympic Games, Shanghai World Expo, Guangzhou Asian Games, etc., but also in the national smart grid construction.
With the continuous development of the power industry, the voltage level of the power grid is continuously improved, and the measurement requirements for voltage and current are also constantly improving. The transformer is also continuously improved and developed as an electrical equipment connecting high voltage and low voltage. Compared with traditional transformers, electronic transformers have multiple advantages and have become the mainstream products of next-generation transformers.
The "2012-2016 China Transformer Industry Development Prospect and Investment Forecast Analysis Report" released by the Prospective Industry Research Institute shows that the emergence of electronic transformers has been hailed as a revolution in the high-voltage electrical appliance manufacturing industry at the beginning of this century. Its digital output and networked wiring make the grid safer and more environmentally friendly, which is more conducive to the intelligence of the primary equipment and the entire transmission and distribution system.
At present, there are about hundreds of units engaged in the tentative research and development of new types of electronic transformers. About ten of them have initially formed supply capacity, and the categories are relatively complete. Currently, there are 3-5 homes that can be fully supplied. The products involve 10-800 kV, different types of current, voltage, free-standing, combined electrical appliances. According to the planning of the State Grid and China Southern Power Grid, 8,000 new and modified intelligent substations will be added during the “Twelfth Five-Year Plan” period.
According to the Research Group of Transformer Industry of Prospective Industry Research Institute, the proportion of new substations in 8000 intelligent substations will reach over 90%. According to this calculation, it is estimated that during the “Twelfth Five-Year Plan” period, the investment in key equipment for smart substation (except for traditional primary equipment) will be approximately 72.7 billion yuan. Among them, the market space of photoelectric transformers is expected to reach 13.6 billion yuan.