
Oil Immersed Transformer 220V to 380V Step up 250kVA 300kVA Household Use. Oil-Immersed Cooling: Uses oil-immersed type cooling for efficient heat dissipation and long life expectancy. High-Quality Core Material: Iron core made by crystal grain-oriented silicon-steel sheet with 45-degree joint seam to reduce noise. Short Circuit Resistance: Cylinder type for high voltage and foil type for low voltage increase resistance to short circuits. A-Level Insulation: Adopts A-level insulation structure with concentric coils and small oil clearance partition. ISO9001 & CE Certified: Holds ISO9001 certification and products backed by CE, SGS, and CCC certifications. Customizable Capacity: Rated capacity ranges from 30kVA to 2500kVA to meet diverse power needs. OEM Service Available: Accepts OEM work for substantial order quantities with customer logo customization. Global Supply Network: Supplies to over 30 countries with branches in Africa, Russia, UAE, and other regions.