New Energy-Saving Epoxy Resin Dry-Type Transformer: Launch and Product Introduction

With the continuous advancement of global energy conservation and environmental protection policies, and the increasing demand for safe and efficient power transmission and distribution equipment in overseas markets, especially the rapid development of data centers, commercial buildings and new energy projects, the demand for dry-type transformers with high performance, low loss and environmental protection is growing day by day. In order to better meet the market demand and enhance the competitiveness of our products, our company has successfully developed a new type of energy-saving epoxy resin dry-type transformer after long-term research and development and testing. Today, we officially launch this new product, and give a detailed introduction to its product characteristics, technical parameters, applicable scenarios and other aspects, so that every overseas customer can have a comprehensive understanding of this new energy-saving and environment-friendly power equipment.

This new type of energy-saving epoxy resin dry-type transformer is an energy-efficient product developed by our company in response to the national energy conservation and emission reduction call, aiming at improving product performance and production efficiency. The product performance fully meets the requirements of the national standard GB 20052-2020, and has passed international authoritative certifications such as IEC, UL and TUV, which can be widely used in overseas industrial, commercial and civil fields. Compared with the traditional dry-type transformer, this new product has achieved comprehensive upgrades in energy saving, noise reduction, safety and service life, and has more obvious advantages in adapting to complex overseas environments and meeting strict project requirements

First of all, let's introduce the core product characteristics of this new energy-saving epoxy resin dry-type transformer. The first highlight is low loss and high energy saving, which is also the core advantage of this new product. In the design process, we adopted advanced magnetic flux calculation technology, took effective measures to reduce stray loss, and effectively prevented local overheating, thus reducing the hot spot temperature rise of the winding. At the same time, we reasonably selected coil conductors, optimized the transposition between conductors, made the linked magnetic flux uniform, and reduced the circulation loss caused by leakage flux. In addition, we carried out slotting processing on the iron core pull plate, which reduced the loss of the iron core structural parts and further improved the energy saving performance of the product. Compared with the traditional dry-type transformer, the no-load loss of this new product is reduced by 15%-20%, and the load loss is reduced by 10%-15%. The energy saving efficiency can reach more than 98%, which can greatly reduce the long-term operation cost of customers, especially for projects that need long-term continuous operation such as data centers and industrial parks

The second highlight is low noise and environmental protection. Noise pollution is a problem that many overseas customers pay attention to, especially for projects in commercial buildings, hospitals, schools and other personnel-intensive areas. This new product adopts a variety of noise reduction technologies to ensure that the noise during normal operation is lower than 58 decibels, which is far lower than the international standard limit. Specifically, we selected high-quality iron core materials, and chose the appropriate magnetic flux density and the natural vibration frequency of the iron core to reduce the vibration noise of the iron core; Adopted high-precision Jogg line with step shear and automatic stacking functions to reduce the burr of silicon steel sheets, thus reducing the noise caused by burr friction; The iron core lamination adopts "step full inclined step lap joint technology", which improves the magnetic flux distribution at the joint and reduces the vibration and noise of the iron core; The surface of the iron core is coated with a resin coating to alleviate the iron core vibration; All clamping parts adopt silicone rubber and elastic components for buffering to reduce the amplitude and further reduce noise. In addition, the product does not use insulating oil, so there is no risk of oil leakage, no pollution to the environment, and it is in line with the global environmental protection development trend.

The third highlight is low partial discharge and long service life. Partial discharge is an important factor affecting the service life and safety performance of dry-type transformers. This new product uses high-quality epoxy resin and glass fiber as solid insulation materials, which have high electrical strength, and the partial discharge can be controlled within ≤5pC, which is far lower than the international standard. Low partial discharge ensures that the transformer will not have any cracks on the coil surface and no insulation level drop during the whole service life. At the same time, the winding of the product is treated by vacuum casting of epoxy resin mixed with silicon powder or glass fiber impregnated epoxy resin, which has good resin permeability and no bubbles, ensuring the insulation performance and mechanical strength of the winding. Under normal use conditions, the service life of this new product can reach 30 years, which is 5-10 years longer than that of traditional dry-type transformers, greatly improving the investment return rate of customers.

The fourth highlight is strong flame retardancy and safety. This new product has excellent flame retardant performance, and its combustion grade reaches F1. The iron core is covered with insulating paint, and the coil is encapsulated by epoxy resin, which can operate in humid environment and has strong corrosion resistance. Even in the case of high temperature and open fire combustion, the transformer produces almost no smoke, which can effectively prevent the spread of fire and ensure the safety of personnel and property. This advantage makes the product very suitable for indoor scenes with high fire protection requirements such as data centers, commercial buildings, hospitals and schools, and can also be used in harsh environments such as high humidity and corrosion overseas[superscript:4].

The fifth highlight is strong overload capacity and short-circuit resistance. In the process of overseas project operation, the load often fluctuates, and even overload occurs occasionally. This new product is equipped with an air cooling system composed of multiple low-noise radial fans, which can reduce the temperature and increase the overload capacity. It can operate under long-term periodic load or temporary emergency load, and can withstand 120% overload operation for 2 hours, meeting the needs of sudden load increase in the project. In terms of short-circuit resistance, the high-voltage coil adopts epoxy resin casting structure, which has good mechanical strength; The low-voltage coil adopts foil structure, which has uniform ampere-turns, small leakage flux and reduces axial mechanical force; The pull plate and cushion block compression structure are adopted to make the whole body of the device stable and firm, which can effectively resist the impact of short-circuit current and ensure the safe and stable operation of the product in complex power grid environments.

Next, we introduce the main technical parameters of this new energy-saving epoxy resin dry-type transformer. The product voltage level is 10kV/0.4kV, the capacity range is 50kVA-2500kVA, which can meet the needs of most medium and low capacity overseas projects; The insulation grade is H level, the temperature rise limit is 125K, which has good high temperature resistance; The cooling method is AN/AF (natural air cooling/forced air cooling), which can be switched according to the load condition to ensure the stable operation of the product; The protection level is IP54, which has good dust-proof and waterproof performance, and can adapt to harsh outdoor or indoor dusty environments; The transformation ratio can be adjusted according to the local power grid standards of overseas customers, such as 400V to 415V for Middle East projects, to ensure perfect compatibility with the local power grid.

In terms of applicable scenarios, this new energy-saving epoxy resin dry-type transformer has a wide range of applications, mainly including the following fields: First, data centers. With the global explosion of AI computing power centers, the power consumption of a single AI supercomputing cluster has soared from megawatt level to 100 megawatt level, which has high requirements for the safety, energy saving and low noise of transformers. This new product is perfectly suitable for the power distribution needs of data centers, with low loss, low noise and long service life, which can reduce the comprehensive energy consumption of data centers. Second, commercial buildings and residential areas. These scenes have high fire protection requirements, limited space and high requirements for environmental protection and noise. This new product has no oil leakage risk, low noise and strong flame retardancy, which is very suitable for indoor installation. Third, overseas industrial parks. For small and medium-sized industrial parks with medium and low capacity demand, this new product has strong overload capacity and corrosion resistance, and can adapt to the complex environment of industrial parks. Fourth, special environments. It can operate normally in high altitude, high humidity, dusty and other special environments, and can also be customized according to the special needs of customers to adapt to more harsh overseas project environments

In addition, we also provide perfect supporting services for this new product. We can customize the product according to the specific needs of overseas customers, including capacity, voltage level, transformation ratio, protection level and other parameters; Provide detailed English product manuals, installation guides and maintenance manuals to help customers understand and use the product; Send professional technicians to the site for installation guidance and commissioning to ensure that the product can operate normally after installation; Provide a 2-year free warranty service and lifelong maintenance service to solve the worries of customers in later use. At present, this new product has been put into mass production, and has received many inquiry orders from overseas customers in Europe, America and the Middle East. We believe that with its excellent performance and high cost performance, this new energy-saving epoxy resin dry-type transformer will become a new bright spot in the global dry-type transformer market.

If you are interested in our new energy-saving epoxy resin dry-type transformer, or want to know more detailed product information, please feel free to contact our sales team. We will provide you with professional consultation and customized solutions to help you achieve better development in the power transmission and distribution field.