Modular Transformer Emerges, Keming Electric Solves Operation and Maintenance Problems

In January 2025, Guangzhou Keming Electrical Equipment Co., Ltd. officially obtained national certification for its "Easy-Disassembly Dry-Type Transformer" (Patent No. CN 222260716 U), marking a significant breakthrough in China's power equipment maintenance technology. The innovative modular design with guide rails and standardized interfaces with quick-locking mechanisms completely resolves the technical challenge of disassembling entire transformers, enabling precise fault localization and rapid replacement of individual windings. After three months of continuous verification by Guangdong Electric Power Equipment Testing Center, this technology reduced average maintenance time from 8 hours to 3 hours while increasing equipment availability to 99.9%. In extreme condition simulations, its short-circuit resistance improved by 40% compared to traditional models, with temperature control precision reaching ±1.5°C. At the patent launch, the technical director revealed: "We've established a joint laboratory with South China University of Technology. Next, we'll develop an IoT-based smart diagnostic system to seamlessly integrate fault warnings with remote maintenance." The technology has been deployed in 12 major projects including Guangzhou Bio-Island Data Center and Zhujiang New Town Medical Center. At the Bio-Island Data Center, the transformer successfully handled continuous load surges during summer peak electricity demand, ensuring stable operation of supercomputing equipment. A department head at Zhujiang New Town Medical Center commented: "The modular design allows maintenance personnel to perform repairs without specialized lifting equipment, significantly reducing power outage risks for medical facilities." Experts from the China Electric Power Research Institute commented that this patented technology has broken the monopoly of foreign enterprises in the field of high-end transformer maintenance, and its standardized interface design has established new technical specifications for the industry. According to estimates, after the full promotion of this technology, it can save more than one million yuan in operation and maintenance costs for large power-consuming units annually, reduce carbon emissions by about 3,000 tons, and effectively promote the transformation and upgrading of the power equipment industry towards intelligent and green development.