What is an amorphous alloy transformer?

Question 1: What is an amorphous alloy transformer? In the past, the core of the transformer was made of silicon steel. Now some use iron-based amorphous alloy, which has less magnetic loss

Ordinary The metal atoms of amorphous alloys are arranged regularly and are crystals, while the atoms of amorphous alloys are arranged randomly and are amorphous like glass, so amorphous alloys are also called metallic glasses.

Liquid atoms are disordered. You can imagine that if the liquid iron is cooled quickly, the atoms will not have time to be arranged neatly and will be "frozen" directly. This will become a "non-ordered" arrangement of atoms. "Crystalline alloy"

Question 2: What are the advantages of amorphous alloy transformers? 5 points At present, there are about 100 domestic manufacturers of amorphous alloy transformers, but there are only a dozen manufacturers with an annual output of thousands of units, such as Zhixin Electric, Shunte Electric, Jiangsu Huapeng, and TBEA. As the country increases the promotion of high-efficiency and energy-saving transformers, amorphous alloy transformers have broad prospects, the scale of the industry is gradually expanding, and the supply of amorphous alloy transformers has also increased, but there is still a long way to go before mass production.

The "Twelfth Five-Year Plan" development plan clearly states that by 2015, energy consumption per unit of GDP will be reduced by about 16%. In order to achieve the 16% energy saving and consumption reduction target, the power grid will inevitably use a large number of amorphous alloy transformers. In addition, once my country forces the power industry to provide carbon emission data, environmental protection will also become a major issue that must be faced in the transformation and construction of power grids.

Therefore, from a long-term development perspective, it is a general trend that amorphous alloy transformers with obvious energy-saving and consumption-reducing effects and environmental protection functions will gradually replace traditional silicon steel transformers in the field of power transmission and distribution.

The latest "China Amorphous Alloy Transformer Industry Market Forecast and Investment Strategic Planning Analysis Report" released by the Qianzhan Industry Research Institute shows that in 2010, my country's amorphous alloy transformer market size was approximately 1.8 billion yuan. In 2011, my country's amorphous alloy transformer market size was approximately 1.8 billion yuan. The market size of amorphous alloy transformers is approximately 2 billion yuan. As the market promotion of amorphous alloy transformers accelerates, the proportion of product applications is gradually increasing. It is expected that the amorphous alloy transformer market capacity will exceed 100 billion yuan in the next eight years, with the average annual market capacity exceeding 10 billion yuan, indicating a huge market space.

Question 3: What is an amorphous alloy transformer? Amorphous alloy is now a popular magnetic core material. Amorphous alloy transformers are transformers made of these amorphous alloy magnetic cores

Question 4: What is an amorphous alloy transformer? Amorphous alloy transformer means that the magnetic circuit, that is, the iron core, is made of amorphous alloy. Its characteristic is that the magnetic loss is very low. Compared with the iron loss of silicon steel sheets, it is reduced by more than 70%. As for the model, it is generally dry type: SCB15 series.

Question 5: What are the differences between oil-immersed transformers and amorphous alloy transformers? In addition to these two transformers, are there other types of transformers? Oil-immersed transformers and amorphous alloy transformers have different descriptions of transformer characteristics and cannot be compared.

The so-called oil-immersed transformer is a transformer that uses transformer oil or other liquids (silicone oil, vegetable oil) as the insulation and heat dissipation medium.

Correspondingly, dry-type transformers use solid insulating materials (such as epoxy resin, etc.) as insulation

Amorphous alloy is a special core material. Although it is It is a metal material but does not have a crystal structure inside its structure. Correspondingly, it is a transformer that uses silicon steel sheets (or electrical steel strips) as the core. The advantage is that its no-load loss will be significantly reduced compared to a transformer with a silicon steel core.

In other words, oil-immersed transformers can use amorphous alloy materials to make the core or silicon steel sheets to make the core.

Transformers that also use amorphous alloy materials to make cores can be oil-immersed transformers that are insulated with oil, or dry-type transformers that are insulated with materials such as epoxy resin.

Distribution and power transformers are classified into dry type or oil-immersed type based on insulation materials.

From the core material, it is divided into transformers with amorphous alloy cores and transformers with silicon steel cores.

Of course, there are other classifications. For example, those with a low-voltage side of 0.4kV are usually called distribution transformers, and those with a low-voltage side of 3kV or above are usually called power transformers.

Question 6: What is an amorphous alloy transformer? What are the disadvantages? Amorphous alloy: Due to super rapid solidification, the atoms do not have time to arrange and crystallize in an orderly manner when the alloy solidifies. The resulting solid alloy has a long-range disordered structure without the existence of grains and grain boundaries of the crystalline alloy. It is called an amorphous alloy. It is a revolution in metallurgical materials science. This amorphous alloy has many unique properties, such as excellent magnetism, corrosion resistance, wear resistance, high strength, hardness and toughness, high resistivity and electromechanical coupling properties.

According to the classification of transformers, they can be mainly divided into three categories: ordinary silicon steel transformers, rolled core transformers and amorphous transformers; the biggest difference between the three products is that the core materials and processing techniques are different. The losses are also different.

Traditional transformers are made of silicon steel sheets and other materials, but amorphous alloy materials are more green, environmentally friendly, and energy-saving than silicon steel sheets.

Advantages: obvious energy saving effect, strong environmental protection effect, saving urban construction land, low comprehensive use cost, stable operation and high safety performance.

Disadvantages: There is no chicken for the time being. The initial investment cost may be relatively high, but long-term maintenance and service life are still more economical than ordinary transformers.

Question 7: What are the advantages of amorphous alloy transformers? What are the disadvantages? The low loss of amorphous strip is the biggest highlight. To put it bluntly, it is energy saving. Disadvantages: Maintenance is more troublesome, the disassembly and assembly of amorphous strips is more damaged, the imported ones are slightly better, the domestic ones are very seriously broken, and the current capacity is also limited, mainly due to the limited processing technology.

Question 8: What are the applicable national standards for amorphous alloy transformers? The national standards for oil-immersed amorphous alloy transformers are: GB/T 25446-2010 "Technical Parameters and Requirements for Distribution Transformers with Oil-immersed Amorphous Alloy Cores". This product standard will cite many basic transformer standards, such as GB/T 1094, etc. Since the standards are also copyrighted, I am not able to provide them to you here. You can look for them in Baidu Library.

Question 9: What kind of transformer is SCB10? Is it an amorphous alloy transformer? No, SCB10 means epoxy encapsulated dry-type transformer, the loss level is S10.

The representation method of non-gold alloy transformers should be SH15, H represents amorphous alloy, and the loss level of amorphous alloy is generally defined as S15.

About loss levels and letters For the meaning, please refer to JB 3837

Question 10: Is the amorphous alloy transformer oil-based or dry? Amorphous alloy refers to both dry-type and oil-immersed core materials