
Interference Resistance Superior Quality 20kv Oil-Immersed Step-Down Distribution Transformer. Superior Energy Efficiency: Advanced core and winding optimization achieves ultra-low no-load and load losses for significant energy savings. Fully Sealed Oil-Immersed Design: Robust sealed enclosure prevents moisture infiltration and oil contamination for maintenance-free operation. Exceptional Short-Circuit Resistance: Reinforced mechanical structure withstands extreme short-circuit currents without performance compromise. Ultra-Low Noise Operation: Precision-engineered core design ensures quiet operation suitable for residential and commercial zones. ONAN Cooling Method: Oil Natural Air Natural cooling ensures superior thermal management under sustained full-load conditions. ISO9001 Certified Quality: Manufacturing process adheres to international quality standards for reliable performance. Customizable Winding Material: Available with either copper or aluminum winding materials to suit specific project requirements. Flexible OEM/ODM Services: Full customization support for product specifications and branding needs.