S13 Oil Immersed Transformer 250kv 400kv 800kVA Three-Phase High-Voltage Power Transformer

S13 Oil Immersed Transformer 250kv 400kv 800kVA Three-Phase High-Voltage Power Transformer. Fully Sealed Structure: Eliminates oil tanks, prevents oil degradation, and requires no maintenance for extended service life. High Efficiency & Low Loss: Uses imported cold-rolled silicon steel cores to significantly reduce no-load losses and noise levels. Wide Capacity Range: Available in rated capacities from 30kVA to 2500kVA for various power distribution needs. Customizable Options: Offers customization for winding material (Copper/Aluminum), input voltage, and specific technical specs. Harmonic Reduction: Adopts Dyn11 connection group to minimize harmonic impact and improve power supply quality. Robust Windings: High/low voltage windings use oxygen-free copper with specialized structures for reliability. Strict Quality Control: 100% QC inspection during manufacturing; each unit holds 3C certificate for guaranteed quality. Compliance with Standards: Meets GB 1094.1, GB/T 6451, and other national standards for power and oil-immersed transformers.