Major Upgrade! CEEG Full-Wave Mining Flameproof Transformer 𝟑.𝟎 Makes a Fresh Debut

Coal remains China's primary energy source today, playing a "ballast stone" role in safeguarding national energy security. In May this year, the National Energy Administration issued the "Notice on Further Accelerating the Intelligent Construction of Coal Mines to Promote High-Quality Coal Development", calling for faster R&D and application of key technical equipment, higher levels of coal mine intelligence, and high-quality development of the coal industry.In response to these national directives, CEEG has intensified R&D of key technologies, continuously raising the standards of transformer quality and performance through technological innovation.

Recently, CEEG independently developed a mining flameproof dry-type transformer with active cooling tubes, upgrading its full-wave mining flameproof dry-type transformer product line once again and opening a new era of heat dissipation for flameproof transformers. Empowering product innovation with technology, CEEG helps the industry climb new technical heights and drives a new transformation in the flameproof transformer sector.

Innovative Upgrade, Reaching New Heights

Building on the company's second-generation patented corrugated-tank enclosure, the KBSG series mining flameproof dry-type transformer innovatively adopts active cooling tubes with a zoned high-efficiency heat dissipation design, improving the transformer's heat dissipation performance, slowing the aging of insulation materials, and enhancing product reliability and stability — taking the flameproof transformer to a new level in heat dissipation, insulation performance, safety and reliability.

Core Advantages, Elevated Performance

Through the concept of zoned heat dissipation design, the top of the tank uses curved corrugated panels, while the sides are rectangular corrugated modules with active cooling tubes. The outside of the active cooling tubes faces the hot gas inside the tank while the inside faces external circulating air, greatly increasing the heat exchange area between the two sides. The significant temperature difference between the top and bottom of the tubes creates active convective cooling based on aerodynamic principles, raising heat dissipation efficiency. With this unique innovative cooling structure, the temperature rise of the internal transformer is effectively reduced, delaying the aging of the transformer's core insulation and effectively extending product service life.

The top corrugated panel uses an arc-shaped structure with open sides, making it resistant to coal dust accumulation. This avoids the risk of high temperatures at the top of the enclosure igniting accumulated coal layers, enhancing product safety.

A tap-changing handhole is set in the vertical face of the high-voltage side. Compared with placement on the top panel, operators can work while standing — no climbing required — and metal parts cannot accidentally fall into the transformer body, making operation more convenient and safer.

The bottom of the enclosure uses medium-thick steel plate welded integrally with the skid into a frame structure, making full use of the bottom space and reducing overall unit height. For power center products, chassis extension is more convenient. Wheels can be mounted under the tank or at both ends, allowing easy selection between adjustable-wheelbase and adjustable-center-of-gravity modes.

The intelligent monitoring terminal is equipped with standard communication interfaces for easy integration into coal mine monitoring systems, enabling remote monitoring and full life-cycle transformer management.

The KBSG series mining flameproof dry-type transformer manufactured by CEEG is built with carefully selected high-quality materials for enhanced operating reliability, is maintenance-free in normal operation, and complies with the latest national standards. It is suitable not only for mines with gas, coal dust and explosion hazards but also for mobile working faces in gassy tunnel excavation and non-coal mines and other environments.

Deep Expertise, Reliable Support

In the flameproof transformer field, CEEG pioneered the industry's fully corrugated cylindrical structure and was the first to design and produce mining flameproof mobile substations as integrated units. Today, the company operates a large-scale production base for mining flameproof transformers with service coverage across the country and strong recognition and influence.

Since the launch of CEEG's KBSG series mining flameproof dry-type transformers, thousands of units have been delivered to more than 1,000 customers nationwide and are widely used in coal, steel, petrochemical, metallurgy and other special industries. Proven by years of operation and repeatedly tested by the market, the products are deeply trusted by customers such as China Energy, Ningxia Coal Industry Co., Ltd., Heilongjiang Longmay Mining Group, Pingdingshan Coal Group, SDIC New Energy Group, Datong Coal Mine Group, Shandong Energy Group and Henan Yongmei Group.

Today, the transformer industry is speeding along the "new track" of high-quality development. The innovative design of the flameproof transformer with active cooling tubes is proof of CEEG's manufacturing and innovation strength. As intelligent manufacturing technology advances in depth, CEEG's technological leadership and product performance advantages will become even more prominent.