
High Performance 11kv /500kVA Three-Phase Fully Sealed Core Oil-Immersed Type Distribution Electric Power Box Transformer. High-Quality Core Material: Made of imported cold-rolled silicon steel to reduce no-load loss and noise. Oxygen-Free Copper Windings: High and low voltage windings use oxygen-free copper for superior conductivity. Low Noise Design: Measured noise values are lower than standard requirements. Fully Sealed Structure: Extends service life with no need for lifting core inspection or maintenance. Harmonic Reduction: Dy n11 connection group reduces harmonic influence on the power grid. Comprehensive Certifications: Holds ISO9001, CCC, UL, CE, and IEC standard certifications. Flexible Customization: Offers full customization, minor customization, and customization from designs. Fast Delivery: Peak and off-peak season lead time is within 15 workdays.