In fact, in recent years, the relevant departments have repeatedly issued papers to speed up the development and application of high-efficiency distribution transformers, but in the actual promotion of energy-saving distribution transformers, manufacturers and users have their own difficulties. On the one hand, the production enterprises are facing some unsolved problems, such as the performance of key materials, production process, energy-saving efficiency and so on. On the other hand, users'enthusiasm for updating equipment is constrained by high costs.
Breaking the Bottleneck of Energy-saving Transformer Promotion
"In recent years, China has promulgated many policies to accelerate the development and application of high-efficiency distribution transformers. Driven by these policies, the output of high-efficiency and energy-saving distribution transformers has increased, but the overall energy efficiency level is still low. The development of energy-saving transformers is relatively lagging behind, and the potential of energy-saving is huge. Xue Jun, general manager of Baotou Kedian Electrical Appliances Manufacturing Co., Ltd. (hereinafter referred to as "Kedian Electrical Appliances"), said in an interview with reporters.
With the gradual adjustment of China's industrial structure, more and more attention has been paid to improving the efficiency of power supply and distribution system. Distribution transformer accounts for a very large proportion in the whole distribution and transformation system, so the requirements for its loss, noise and cost are getting higher and higher. The original S11 products can not meet the needs of the market, and are gradually eliminated. The S13 products and S15 products with lower losses are becoming more and more popular. For the mainstream of the market.
"Kedian Electrical Appliances and Shenyang Jiaheng Electrical and Mechanical Equipment Co., Ltd. have learned from the advanced experience of similar products abroad through years of design and development, and further structural optimization has been carried out on the basis of which, technological problems in mass production have been solved. Finally, the traditional laminated core transformer and closed three-dimensional coil transformer have been fused and the open three-dimensional coil transformer has been developed. Core transformer." Xue Jun said that the transformer has almost all the advantages of closed three-dimensional coil core transformer, and its requirements for equipment are lower, the process is simpler, and the production efficiency is higher.
It is understood that the open three-dimensional coiled core transformer has made a lot of technical improvements on the basis of the original closed three-dimensional coiled core, which has solved the problems of loss and noise reduction of traditional laminated transformer, high cost, low production efficiency and great production difficulty of closed three-dimensional coiled core transformer. Its structure is more reasonable, performance is better and manufacturing cost is obviously reduced. It not only meets the requirements of energy saving in power industry, but also meets the cost control objectives of manufacturing enterprises.
The data show that the open three-dimensional coil core transformer has low loss and remarkable power saving effect. With the same material of copper wire and silicon steel strip, the no-load loss of the triangular open-wound core transformer decreases by about 30%, the total cost decreases by 70% and the material utilization ratio is nearly 100% under the same diameter and cost of iron core.
Enhancing the Industrialization Ability of High Efficiency Distribution Transformer
Some experts pointed out that the price of energy-saving distribution transformers, especially amorphous alloy transformers, is not cheap at present. Enterprises will invest a large amount of initial capital in the process of transformer replacement at one time, but the cost recovery period of equipment is too long, so it is difficult for users to make up their minds to replace. The way to solve the problem of high cost and price is to continuously improve the industrialization ability of efficient distribution transformer, including process optimization, material optimization and production efficiency.
In terms of technology and industrialization, it is necessary to enhance the industrialization ability of high-efficiency distribution transformers. Solve the key raw materials and basic production technology problems of distribution transformer, strengthen the research of energy-saving technology of distribution transformer system, strengthen the application research of new technologies, new structures and new materials of high-efficiency distribution transformer, and focus on the application occasions and technologies of single-phase distribution transformer, on-load capacitance-regulating distribution transformer, aluminum winding distribution transformer and high burning point vegetable insulated oil distribution transformer. Technological reliability, improve the sustainable innovation ability of distribution transformer industry.
In addition, we need to improve the construction of efficient distribution transformer supporting system. We will speed up the formulation and improvement of relevant standards and specifications, standardize distribution transformer detection and certification institutions, and establish a life cycle evaluation system for distribution transformers. Demonstration of manufacturing and application of high-efficiency distribution transformers and demonstration of manufacturing and system application of high-efficiency distribution transformers are carried out.
"The National Transformer Energy Efficiency Promotion Industry Alliance will take the organization and implementation of the Energy Efficiency Promotion Plan for Distribution Transformers (2015-2017) as its main task, focusing on three aspects of service to the government, transformer production enterprises and service users, using the"Alliance Work Platform System","Project Voluntary Participation System","Result Paid Transfer System"and"Preferential Work-based Determination". The way to organize the work of the alliance. Guo Zhenyan, vice president of China Electrical Appliance Industry Association, said that through research, the problems existing in production enterprises and users were found out and solved step by step, so that the alliance could develop well and healthily.
(Source: China Electricity Daily)
