FGI Supports Sansteel Minguang in High-Voltage Inverter Upgrades, Ensuring Efficient and Stable Production
Recently, Fujian Sansteel Minguang Company successfully completed the renovation project for two sets of water pump high-voltage inverters. FGI provided a customized upgrade solution. By keeping the main structure and upgrading the core components, the project effectively addressed aging and frequent failures in the original equipment. This achieved the triple goals of reducing costs, improving efficiency, and ensuring stable operation, continuously powering the company’s production and operations.
The two sets of water pump high-voltage inverters at Fujian Sansteel Minguang had been in service for over ten years. As years passed, the equipment showed clear signs of aging. Failures occurred frequently, increasingly affecting normal production and overall efficiency. Technical inspection confirmed that the original manufacturer had discontinued spare parts for this inverter model, making it impossible to completely resolve malfunctions through part replacement. Choosing to replace the entire high-voltage inverter system would not only incur high purchase costs, but also require a lengthy process for procurement, installation, and commissioning, further delaying production progress.
To overcome this production challenge while balancing cost considerations, Fujian Sansteel Minguang evaluated multiple options and decided to renovate the two high-voltage inverter systems. The core approach was to retain as much of the original main structure as possible while comprehensively upgrading the key control system. The company ultimately selected FGI to provide a customized solution, centered on the latest high-voltage inverter technology, precisely matching the operational requirements of the on-site asynchronous motors.
The renovation consistently adhered to the principle of balancing economy and reliability. The team avoided unnecessary costs from over-renovation and eliminated potential operational risks from oversimplified upgrades. During the process, the construction team carefully managed each step. In terms of cost control, they fully utilized the remaining value of the original equipment. They kept all well-functioning core components such as the overall cabinet, transformer, and automatic bypass cabinet, significantly reducing the purchase of new parts. This approach lowered the total renovation cost from the source, achieving significant results with limited investment. For performance improvement, the team addressed the root cause of equipment aging by fully upgrading key components like the power units and control system. They installed new parts with better performance, stronger stability, and improved compatibility, completely eliminating hidden risks from aging. Regarding construction quality, the team strictly followed high-voltage electrical equipment installation standards and the company’s on-site specifications. They implemented standardized wiring techniques and adopted a modular layout for the control system, reducing on-site wiring workload. This not only met high installation standards but also facilitated future maintenance, inspection, and troubleshooting.
During specific implementation, the construction team progressed step by step. They replaced all power units while keeping the original cabinet structure with 8 units in series per phase. They installed a new human-machine interface to improve the user experience and enhance operational convenience. The team also replaced the main control system and its matching power supply box, properly connecting and labeling secondary cables to ensure secure installation and traceable wiring. They accurately installed output voltage monitoring boards to enable real-time, precise monitoring of inverter output voltage and prompt reporting of abnormal signals. Inside the switching cabinet, they added a digital signal board to optimize signal transmission efficiency and control accuracy, ensuring smooth communication between devices. After reorganizing all existing cables inside the cabinets, the team added insulation sleeves to enhance cable insulation, prevent potential hazards such as short circuits and electric leakage, and extend cable service life.
To minimize the impact of the renovation project on normal production at Fujian Sansteel Minguang, the FGI Southern Region One service team took initiative and faced challenges head-on. They remained on-site throughout the project, working extra hours to advance the renovation. With their professional expertise, rigorous attitude, and persistent effort, the team overcame various difficulties. They completed all renovation work with quality and on schedule, demonstrating their commitment to safeguarding customer operations through practical action.
After efficient construction, the renovation project for the two high-voltage inverter systems was successfully completed. On-site technical personnel immediately carried out power-on debugging, achieving a successful first-time power-up. Debugging results showed stable operation of the upgraded equipment, with all parameters meeting design standards and on-site production requirements. This thoroughly resolved the previous issues of aging and frequent failures, effectively ensuring continuous and stable operation of the water pump equipment and tangibly improving the company’s production efficiency.
Leveraging innovative technical solutions, FGI successfully completed the high-voltage inverter renovation for Fujian Sansteel Minguang, supporting the company’s development goals of energy conservation, cost reduction, quality improvement, and efficiency gains. Through this project, FGI systematically addressed the operational challenges of aging equipment, significantly reduced renewal costs, shortened the renovation cycle, and enhanced equipment stability and production efficiency. This has laid a solid foundation for Sansteel’s future high-quality production.
Moving forward, FGI will continue to apply its professional expertise and proven solutions to help more enterprises optimize their equipment operation and maintenance systems. Together, they will explore sustainable paths toward energy conservation, cost reduction, quality improvement, and efficiency gains, empowering companies to achieve higher-quality production and operational development.
