Success on First Attempt! Generator Rotor Installation of Unit 1 Successfully Completed at China Coal Yongcheng 2×1000MW High-Efficiency Ultra-Supercritical Unit Project Undertaken by SEPCO Electric Power Construction Corporation
en.Wedoany.com Reported - On August 24, the generator rotor of Unit 1 at the China Coal Yongcheng 2×1000MW High-Efficiency Ultra-Supercritical Unit Project, undertaken by SEPCO Electric Power Construction Corporation, was successfully installed on the first attempt, laying the foundation for subsequent turbine-generator assembly, unit commissioning, and grid-connected power generation.
As one of the first batch of "coal-power and coal-power-renewable energy" dual joint-operation demonstration projects approved by the National Development and Reform Commission, the China Coal Yongcheng Project is built upon a new-generation high-efficiency green million-kilowatt coal-fired power project, featuring domestically advanced equipment and integrated development of new energy and incremental distribution networks. Combining wind, solar, thermal, storage, and distribution grid systems, the project plans to construct two 1,000MW thermal power generating units, 3,000MW of new energy capacity, and 900MW/1,800MWh of energy storage, serving as an important demonstration project for promoting the coordinated development of coal, power, and new energy.
Since the commencement of the project, the company's project team has closely monitored key construction milestones, adhering to the management philosophy of "planned execution for projects, standardized performance for work," and continuously strengthening construction organization, technical management, and quality control. For the critical procedure of generator rotor installation, the project department planned ahead and made meticulous arrangements, organizing professional and technical personnel to comprehensively review and repeatedly validate the construction plan, operation procedures, equipment status, and safety measures, refining task assignments and optimizing construction processes to create favorable conditions for the successful one-time rotor installation.
The generator rotor of Unit 1 installed this time weighs 97 tons with a diameter of 1367.5mm, and the clearance between the rotor and stator is extremely small, imposing extremely high requirements on construction precision, operational procedures, and multi-party coordination. Facing multiple challenges including high construction difficulty, stringent technical standards, and cross-disciplinary concurrent operations, the project department established a dedicated leading work group, with leadership providing on-site supervision throughout the process. Technical, quality, safety, and mechanical professionals worked in coordinated synergy, implementing full-process control over critical stages of the installation to ensure every operation follows established procedures and every step is precisely controlled.
During the installation process, as the rotor was slowly advanced into the stator bore, on-site personnel cooperated closely with precise operations, while technical staff conducted real-time monitoring and dynamic verification, ensuring seamless and orderly coordination of all procedures. Facing millimeter-level precision requirements, the project team maintained rigorous and meticulous work practices to safeguard every checkpoint, and upheld refined construction standards to perfect every detail, ultimately achieving the smooth insertion and precise positioning of the 97-ton generator rotor on the first attempt, successfully meeting the established goals of zero safety incidents and zero quality defects.
Going forward, the project team of SEPCO Electric Power Construction Corporation will leverage this successful one-time generator rotor installation as a momentum, closely focusing on key tasks such as subsequent turbine-generator assembly and equipment commissioning, continuously consolidating management responsibilities, strictly upholding quality red lines, and optimizing construction organization and resource allocation. With solid technical expertise and a pragmatic work style, the team will accelerate project construction progress and make every effort to ensure the project is delivered on schedule with high quality, contributing the strength of electric power construction to safeguarding national energy security and supporting the green and low-carbon energy transition.
