Inquiry:
This 550kV Ultra-High-Voltage (UHV) Oil-Immersed Large Power Transformer (20,000kVA–800,000kVA / up to 800MVA) represents the pinnacle of high-voltage power transmission engineering. Designed for national backbone grid transmission, inter-regional power interconnection, and the world's largest new energy power stations, it delivers exceptional reliability at voltage levels requiring the most rigorous design, manufacturing, and testing standards. Built with grain-oriented cold-rolled silicon steel cores, high-purity copper windings, and Class-A insulation, the transformer achieves ultra-low no-load losses and superior short-circuit withstand strength. All units are fully tested in a CNAS nationally accredited 8,000m² laboratory covering routine, type, and special tests including lightning impulse voltage and UL Witnessed Test Data Program (WTDP). Certified to CE, CESI, and UL for multi-market project compliance, manufactured in a 30,000-unit/year Guangdong facility with proven deployment across 60+ countries in wind, solar, hydro, and thermal generation projects.
