HAOMAI.HAOMAI was established on July 27, 1999, with its registered office located in Wuhan East Lake High-Tech Development Zone. As a national high-tech enterprise, it specializes in the R&D, production, and sales of power system testing instruments, online monitoring systems, and live-line testing equipment. HAOMAI consistently adheres to the principle of “driving innovation through R&D, guiding development by industry needs, and prioritizing customer satisfaction.” The company closely follows trends in the power industry, deeply roots itself in application sites, and diligently conducts product development and service work. Annually, the company develops over 100 new products, technologies, and collaborative scientific projects, having participated in the formulation of dozens of national industry standards. Its successfully developed and manufactured products include: the “Relay Protection Star” series of relay protection testers, instrument transformer testers, distribution automation test instruments, DC power supply test instruments, high-voltage DC transmission test equipment, as well as online monitoring and new energy detection devices. In the field of dissolved gas monitoring in transformer oil, the company began exploring the application of laser photoacoustic spectroscopy for gas detection in transformer insulation oil in 2010. After over a decade of R&D breakthroughs and iterative upgrades, successfully launched the PASL-3000 Laser Photoacoustic Spectroscopy Online Gas Monitoring System for Transformer Oil. Meeting State Grid's A1-level standards, this system has earned high praise from users for its maintenance-free operation, high precision, excellent repeatability, and superior weather resistance. It has also established a comprehensive proprietary intellectual property system. Key products include: relay protection test equipment, distribution automation test equipment, transformer oil gas monitoring systems, load-simulation-based relay protection vector checkers, instrument transformer testers, DC system test equipment, intelligent operation and maintenance solutions, power system automation test equipment, new energy series testers, and high-voltage DC test equipment.
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