Energy-Saving Retrofits Power Green Transformation: Haihong Electric Injects Green Power into Thermal Power Plant

Against the backdrop of accelerating the comprehensive green transformation of economic and social development, the low-carbon retrofitting and construction of thermal power plants has become an industry trend. Leveraging its self-developed Fully Insulated Low-Temperature-Rise 3D Wound Core energy-saving technology, patented cooling system technology, and live-line fan replacement technology, Haihong Electric has provided safe and highly reliable low-carbon power distribution solutions for multiple thermal power plants, assisting them in achieving low-carbon transformation and ensuring safe, continuous operation.

Technology Leadership, Supporting Provincial Key Projects

Haihong Electric's 3D Wound Core transformers possess outstanding performance advantages such as excellent energy-saving effects, low noise, and strong overload capacity, making them unique in the industry. These products have been supplied in bulk for key projects in Guangdong Province, including the 1000 MW clean, efficient, ultra-supercritical, double-reheat coal-fired power generation unit project at Phase II of Guangdong Yudean Dapu Power Plant, and the 1000 MW coal-fired unit project at the Huilai Power Plant expansion project. Haihong Electric's 3D Wound Core energy-saving transformer technology provides critical power support for these industry benchmark projects, establishing a model for green technology empowering the upgrade of the thermal power industry.

Dapu Power Plant Project 

 Huilai Power Plant Project

Precise Retrofitting, Solving Equipment Temperature Rise Challenges

A resin-cast stacked core dry-type transformer at a power plant in Zhuhai was plagued by excessively high operating temperature, severely impacting equipment lifespan and power supply reliability. Haihong Electric implemented a targeted cooling system retrofit for this issue, utilizing the live-line fan replacement technology. Post-retrofit, the equipment's temperature rise significantly decreased, with the transformer's hottest spot temperature dropping by approximately 10 degrees Celsius, and temperatures at other measurement points also reducing to varying degrees. This not only effectively controls the operating temperature and extends the transformer's service life but also greatly enhances the safety and stability of the power distribution system.

After Transformer Retrofit

Live-Line Fan Replacement Technology Safeguards Uninterrupted Plant Operation

Fans, serving as fragile components during transformer operation, require replacement after aging. For sectors like the power generation industry that have extremely high requirements for power supply continuity, Haihong Electric has independently developed the live-line fan replacement technology. This ensures that fan maintenance and replacement can be carried out safely and quickly while the transformer operates normally, completely resolving the traditional issue where fan failure might necessitate a power outage for repair. It adds an extra layer of protection for achieving uninterrupted and stable operation in thermal power plants.

Haihong Electric Dry-Type Transformer Product (Equipped with Live-Line Fan Replacement Technology)

Empowering Green Transformation of Power Plants

Furthermore, Haihong's Fully Insulated Ultra-Low-Temperature-Rise 3D Wound Core transformers were applied in the energy-saving upgrade of transformer equipment at a power plant in Zhanjiang. Replacing the old transformer with a unit of the same capacity but offering stronger overload capability, it further enhanced the plant's operational efficiency and environmental performance. Through continuous technical collaboration and retrofitting partnerships, Haihong Electric, with its products' significant energy-saving advantages and high reliability, is assisting multiple thermal power plants in steadily advancing towards a green, low-carbon, and high-quality development path.

A Power Plant Project in Zhanjiang

From supporting major projects to retrofitting critical equipment, Haihong Electric, with its highly reliable and customized transformer technology, continues to empower the green transformation of thermal power in Guangdong. It interprets the spirit of serving the nation through industry with concrete actions and contributes professional expertise to strengthening the energy foundation for Chinese modernization.

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