Energy-saving transformers tend to promote the general trend of the problem

Power transformers are the key electrical equipment for power transmission. As China continues to deepen its energy-saving and consumption-reduction policies, some of the high-energy-dissipation distribution transformers currently in operation on the network are no longer in line with the development trend of the industry, and are facing the need for technological upgrading and replacement. Will gradually be replaced by energy-saving, materials, environmental protection, low noise transformers.

Energy-saving transformers are the trend of the times In recent years, with the rapid development of China's electric power construction, the demand for transformers has increased rapidly, resulting in a considerable part of the domestic transformer enterprises to rapidly expand production capacity, and even double the production capacity of individual enterprises. According to statistics, there are about 1,500 transformer manufacturing enterprises in China, with an annual production capacity of about 3 billion kVA, and in the past three years, the annual demand for transformers in China is at most about 1.5 billion kVA.

Overcapacity leads to fierce competition. Many companies have turned into a vicious circle of low-cost bids. The decline in the quality of transformer products and the increase in the accident rate have often been criticized by the industry. In the fierce competition environment, the economic efficiency of domestic transformer enterprises has dropped significantly. Many companies are on the verge of loss or bankruptcy, and face the fate of mergers and reorganizations; some companies have begun to take overseas routes, export products, and establish factories abroad; some companies have started to develop New, energy-saving, environmental protection and intelligent products. Wang Dehua said.

In fact, whether in the global market or in the Chinese market, whether in developed countries or developing countries, in the increasingly severe energy-saving and consumption-reducing targets, many people will focus on energy-saving transformers, and energy-saving transformers will usher in a large scale. Promote the application phase.

The promotion and application are faced with many difficulties. On the one hand, it is the strong market demand for energy-saving transformers. On the other hand, the current situation of the scattered distribution of energy-saving and distribution transformers, coupled with low barriers to entry, poor and good companies, lack of definition and standards, technical bottlenecks, and high prices, The constraints of insufficient subsidies and other factors have led to the slow promotion of energy-saving transformers in China.

At present, there are certain difficulties in the promotion of energy-saving transformers, and the most critical is that there are some technical defects. For enterprises, there is a need to increase costs; for users, the price is too high. The industry believes that the current lack of a unified definition and definition of energy-saving distribution transformers. It is urgent to define the definition of a unified energy-saving distribution transformer and define its substantive technical indicators. These indicators should be quantified and refined as much as possible, and in particular, they must be operable. Further improve the national standard for energy-saving transformers and keep up with the international pace.

Transformer factory store experts also pointed out that due to the short use of energy-saving distribution transformers, there are some issues that are controversial and can not be fully accepted by users, such as amorphous alloy distribution transformers after running poor performance stability, short-circuit resistance, noise And loss increases. Testing standards and testing technologies lag behind product development, and lack of product performance evaluation and rating systems and tools that can reflect different design levels and manufacturing processes.

In response to these problems, the experts proposed to carry out in-depth research on the operation of energy-saving distribution transformers, especially the development of distribution transformers based on domestic amorphous alloy strips, from the strip performance, core structure design, core annealing process and finished products. Inspection, performance, efficiency and pre-assessment of energy consumption are integrated to eliminate user concerns and focus on solving problems such as increased noise and loss of amorphous transformers after operation. In addition, starting from improving the properties of strips, especially the properties of domestic strips, we will unify and standardize strip sizes, increase the yield of amorphous alloy strips, and reduce the cost of energy-saving distribution transformers. The Transformer Factory Store will work with companies to make corresponding contributions to the promotion of energy-saving transformers.