
Indoor Step Down S13 Series 400kVA 500kVA 630kVA 1250kVA Oil-Immersed Power Transformer. Fully Sealed Structure: Eliminates oil storage tanks, prevents oil degradation, and requires no maintenance. Low Loss and Noise: Uses imported cold-rolled silicon steel to reduce no-load losses and noise levels below standard. High Efficiency: Achieves excellent energy-saving effects with high operational reliability. Customizable Materials: Winding material available in Copper or Aluminum based on customer requirements. Wide Capacity Range: Rated capacity spans from 30kVA to 2500kVA for various power applications. Dyn11 Connection: Reduces harmonic impact on the power grid and improves power supply quality. 100% Quality Control: Each unit undergoes 10 times of QC inspection and holds 3C certificate. OEM/ODM Service: Offers full customization, minor customization, and flexible customization options.