330kV Oil-immersed Three-phase Double-winding Unexcited Voltage Regulating Power Transformer

The 330kV oil-immersed three-phase double-winding unexcited voltage regulating power transformer is engineered for high-voltage transmission systems requiring stable, efficient, and reliable power conversion. It adopts a high-grade grain-oriented silicon steel core and optimized winding structure to ensure low no-load loss, reduced noise, and improved overall energy efficiency. The oil-immersed cooling system provides excellent heat dissipation, enabling safe and stable operation under heavy load conditions. With a robust insulation design and advanced manufacturing technology, the transformer delivers superior dielectric strength, strong short-circuit withstand capability, and low partial discharge performance. It is widely used in power substations, regional grid interconnections, and large-scale infrastructure projects where reliability is critical. Designed for long service life and minimal maintenance, it supports continuous operation in demanding environments. The product can also be customized according to specific technical standards, environmental requirements, and utility specifications, making it a dependable solution for modern high-voltage power networks.