Amorphous Metal Transformers

　　Amorphous Alloy Transformers are a type of low-loss, high-efficiency power transformer. Below is a detailed introduction from multiple aspects:

　　Materials and Structure

　　Core Material: Amorphous alloy transformers utilize iron-based amorphous metallic materials as the core. This material lacks a long-range ordered structure, making magnetization and demagnetization easier compared to conventional magnetic materials.

　　Core Structure: The most rational structure for a three-phase amorphous alloy distribution transformer consists of four separate core frames arranged in the same plane to form a three-phase, five-limb configuration. It must undergo annealing treatment and feature cross-yoke joints with a rectangular cross-sectional shape. The windings have a rectangular cross-section and can be independently wound into double-layer or multi-layer rectangular layer forms. The oil tank employs a fully sealed, maintenance-free corrugated structure.

　　Performance Advantages

　　Low Loss: The iron loss (i.e., no-load loss) of amorphous alloy transformers is 70%-80% lower than that of traditional transformers using silicon steel as the core. Compared to S13 transformers, the no-load loss of amorphous alloy transformers is reduced by 57%, being only about 35% of that of S11 distribution transformers.

　　High Efficiency: Due to reduced losses, the demand for power generation also decreases, leading to a corresponding reduction in greenhouse gas emissions such as carbon dioxide.

　　Strong Short-Circuit Withstand Capability: The high and low voltage windings are wound in a special manner. During assembly, the windings are supported on a separate winding support system and tightly secured with laminated wood, minimizing or eliminating pressure on the core. This reduces radial deformation of the windings during sudden short circuits, enabling the transformer to withstand significant mechanical stress and enhancing its short-circuit withstand capability.

　　Noise Control: Although the magnetostriction phenomenon of amorphous alloy core materials is greater than that of traditional grain-oriented cold-rolled silicon steel sheets, reasonable design parameters and a well-matched structure between the windings and core can effectively ensure the noise level of the transformer.

　　Application Scenarios

　　Power Systems: Amorphous alloy transformers are widely used in power transmission and distribution systems, particularly in areas with significant fluctuations in power load, such as rural areas, townships, schools, and street lighting. Their energy-saving benefits are more pronounced in these regions.

　　Transportation: In rail transit systems like subways and high-speed rail, amorphous alloy transformers can adapt to extreme temperature variations and provide stable power supply.

　　Renewable Energy: In renewable energy sectors such as photovoltaic power plants and wind farms, amorphous alloy transformers, in conjunction with SVGs (Static Var Generators), achieve reactive power compensation and harmonic mitigation, enhancing the stability and efficiency of the power grid.

　　Economic Performance and Social Benefits

　　Energy Conservation and Consumption Reduction: Amorphous alloy transformers offer significant energy-saving effects, reducing transformer-induced losses in grid line losses. Calculating based on the electricity consumption of China and India, if amorphous alloy transformers were comprehensively adopted in distribution networks, approximately 25-30 TWh of power generation could be saved annually.

　　Environmental Benefits: In addition to reducing energy consumption, amorphous alloy transformers also decrease greenhouse gas emissions such as carbon dioxide, aligning with environmental protection and sustainable development requirements.

　　Economic Benefits: Although the initial investment in amorphous alloy transformers may be slightly higher than that in traditional transformers, their low-loss and high-efficiency characteristics result in substantial savings in electricity expenses over the long term. Taking the SH15 three-phase oil-immersed amorphous alloy core distribution transformer and the S9 three-phase oil-immersed distribution transformer as examples, in terms of the payback period, the electricity cost savings from the amorphous alloy core distribution transformer can recoup the investment difference within just over three years.

　　Market Trends

　　Market Expansion: With the growth in power demand and the advancement of energy-saving policies, the demand for amorphous alloy transformers in the market will continue to increase, and the market size will also expand.

　　Technological Advancement: Domestic enterprises will increase their R&D efforts to drive technological progress and industrial upgrading of amorphous alloy transformers.

　　Intensified Market Competition: As the market size expands and technology advances, competition in the amorphous alloy transformer market will become increasingly fierce. Domestic enterprises need to strengthen their technological innovation and brand building to improve product quality and competitiveness.