In the fierce competition of the global power equipment market, technological innovation serves as a passport across borders. Looking back on 2025, Dalian Xin'anyue Electric Power Equipment Co., Ltd. delivered an outstanding overseas achievement. In July 2025, the vehicle-mounted transformer supporting grounding resistance cabinets custom-built for the high-voltage mobile substation project of Saudi National Grid successfully completed one-time grid connection and power supply at five stations after four months of intensive research and practical verification. This not only overcame three major technical challenges but also added an overseas business card for "Made in China" with solid strength.
Innovation Driven by Demand: The "Triple Extreme Tests" of the Saudi Project
In January 2025, Dalian Xin'anyue received an urgent design requirement for vehicle-mounted transformer grounding resistance cabinets from XD Electric. Serving the Saudi National Grid, the special application scenarios of this project brought unprecedented technical challenges:
Voltage switching challenge: The cabinets must support free conversion between 13.8kV and 33kV voltage levels, while ensuring stable and uninterrupted power supply during switching.
Space constraint dilemma: The length, width and height of the vehicle-mounted transformer are fully customized, so the resistance cabinet must strictly fit the vehicle space without exceeding the preset specifications.
High-altitude adaptation challenge: The high-altitude environment of the project site imposes extremely high requirements on the insulation safety distance of the equipment, creating a natural conflict between transportation safety and operational stability within the limited space.
The combination of these three tests set stringent demands on the design accuracy, craftsmanship and adaptability of the equipment, making it a key milestone for Xin'anyue to enter the high-end market in the Middle East.
Forging Ahead with Years of Efforts: The "Technical Breakthrough Campaign" of the Special Team
Facing the extreme challenges, Dalian Xin'anyue quickly set up a special R&D team and launched a technical breakthrough in the mode of "led by the chairman + multi-party collaboration":
Integrating core resources: With the company's senior electrical engineer team as the core, the project invited technical experts from XD Electric to provide support for parameter standards, and collaborated with electrical professor teams from Dalian University of Technology for technical demonstration, building a three-party tackling system of "enterprise + university + partner".
Focusing on core difficulties: In response to the dual-voltage switching demand, the material and structural design of resistance discs were optimized to improve the pressure resistance and switching flexibility of components. To resolve the conflict between "space + high altitude", an innovative "layered compact layout" was adopted, and component arrangement was repeatedly simulated through 3D modeling to precisely plan the insulation distance within millimeter-level space.
Refining details to perfection: During the R&D process, the team stayed in the laboratory for 72 consecutive hours to monitor data, and repeatedly adjusted the installation angle and spacing of components. Finally, the cabinet size was strictly controlled within the vehicle requirements, while fully meeting the high-altitude insulation standards, achieving a two-way breakthrough between "limited space" and "safety and stability".
Achievements Landed Overseas: The "Middle East Report Card" of Made in China
After four months of design, production, testing and transportation, the grounding resistance cabinets independently developed by Dalian Xin'anyue were installed and commissioned at the Saudi project site in July 2025, and successfully put into operation in one go. After the smooth grid connection and power supply of the five stations, the equipment operated stably with excellent performance, providing a solid guarantee for power supply during the peak summer period of the Saudi grid and winning high recognition from the customer.
The success of this project not only marks Dalian Xin'anyue's technological breakthrough in the field of high-voltage mobile substation supporting equipment, but also represents a key step forward in the company's layout in the high-end overseas market. From technical scheme design to on-site commissioning and delivery, Xin'anyue has broken the international market's technical prejudice against Chinese power equipment with products featuring "precise adaptation, stability and reliability", making "Made in China" shine in the Middle East.
Looking back on this cross-border technical breakthrough, every achievement stems from adherence to quality, and every success is inseparable from team collaboration. In the future, Dalian Xin'anyue will continue to take technological innovation as the core driving force, deeply cultivate the power equipment field, focus on the needs of high-end overseas markets, overcome more technical difficulties, and provide more high-quality products and services to bring "Made in China" to more corners of the world, contributing Xin'anyue's strength to the high-quality development of the global power and energy industry!
