Pressure transformer, SH15 amorphous alloy transformer, SH15 amorphous alloy iron core distribution transformer, as a new energy-saving technology distribution equipment, energy saving mainly comes from the use of a new type of material with excellent soft magnetic properties, iron-based amorphous alloy and strict design and manufacturing processes. The amorphous alloy strip contains 78% -81% iron, 13.5% boron, 3.5% -8% silicon, and also contains trace amounts of nickel, cobalt and other metal elements. The no-load loss of amorphous alloy transformer is very low, only 20% of S9 type silicon steel transformer, and the relative consumption reduction reaches 80%. Amorphous alloy transformer meets the requirements of industrial policies and power grid energy conservation and consumption reduction.
In the construction of new rural areas and the renovation of urban power grids, non-metallic transformer technology has great potential in reducing consumption and has a very broad market prospect.
Firstly, currently, the line loss rate of power transmission and transformation lines in China is 7.70%, while in the United States it is 6.00% and in Japan it is 3.89%. Compared with the data in 2000, the load loss of high energy consuming distribution transformers in China is 50% -60% higher than the international advanced level, and the no-load loss level is over 90% higher. Therefore, improving the efficiency of power transmission and transformation equipment is a necessary factor to consider in power planning and energy-saving measures.
Secondly, the benefit factor is that China produces approximately 240 million kVA of distribution transformers annually. Assuming 30% of them are made of amorphous materials, the annual production of amorphous transformers would be 72 million kVA. Taking each transformer with 300 kVA as an example, the annual production of amorphous transformers would reach 240000 units. This will reduce the no-load loss of the transformer by 130000 kW and save 1.14 billion kWh of electricity annually. Equivalent to saving 433000 tons of electricity coal and reducing 11000 tons of harmful gas emissions from coal combustion. The just passed Eleventh Five Year Plan outline also clearly states that by 2010, 'per capita GDP will double compared to 2000, and energy consumption per unit of GDP will be reduced by about 20%. Reducing energy consumption by 20% within 5 years is quite challenging. As for the power grid, the possibility of achieving this through technological means mainly focuses on amorphous alloy transformers and frequency conversion technology. Therefore, we conclude that in order to achieve the 20% energy-saving and consumption reduction target, the power grid will inevitably use a large number of amorphous alloy transformers.
With the increasing investment in urban and rural power grid renovation in China, the demand for distribution transformers is expected to maintain a growth rate of 10% -15%. Based on this speed calculation, by 2010, if 10% of distribution transformers were to switch to amorphous materials, China's annual demand for amorphous transformers would reach 38 million kVA. In order to comply with energy-saving policies, the relevant departments of the power grid have repeatedly stated that amorphous alloy transformers with obvious energy-saving and consumption reducing effects and lower total cost of ownership (TOC) are gradually replacing traditional silicon steel transformers in the distribution field, which is the trend.
