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    Oil-Immersed Transformer

    The Single-Phase Oil-Immersed Transformer provides efficient and reliable power distribution suitable for various outdoor applications. It combines robust performance, energy efficiency, and extended service life by integrating meticulously engineered components and advanced manufacturing techniques.

    Core Construction
    Constructed from high-quality cold-rolled, grain-oriented silicon steel sheets, the transformer core ensures optimal efficiency. These sheets are precision-cut and laser scribed to achieve minimal burrs and superior accuracy. Moreover, a 45° inclined seam aligns the silicon steel with the magnetic flux, significantly reducing load losses, current, and noise.

    High-Voltage Winding
    For enhanced reliability, the high-voltage winding employs polyvinyl acetal enameled wire in a layered structure, insulated with double-sided adhesive dot paper. This insulation forms a cohesive unit after drying. Additionally, advanced winding technology reduces axial forces during short circuits, improving transformer durability.

    Oil-Immersed Transformer
    Transformer Oil Containment Design
    Utilizing a corrugated tank structure, the transformer enclosure is manufactured with precision through automated production lines. Each tank undergoes rigorous leak testing, ensuring superior sealing performance and protecting internal components effectively.

    Enhanced Insulation
    By filling the transformer with oil under vacuum conditions, insulation strength significantly increases, thus enhancing operational safety and reliability.

    Oil-Immersed Transformer
    Advanced Bushing Design
    The transformer bushings incorporate innovative technology without external pressure feet or plates, effectively preventing oil leaks and corrosion. This design enhances both structural integrity and visual appeal.

    Magnetic Plate Oil Level Indicator
    A specialized oil level indicator completely isolates the oil tank from air exposure, safeguarding transformer oil from ultraviolet damage and maintaining oil integrity.

    Efficient Tap Changer
    Featuring a strip-type no-load tap changer, the transformer enables effortless operation with automatic rapid switching and clear manual feedback. This solution resolves common switching challenges, and an additional locking feature prevents unauthorized adjustments, enhancing safety.

    Application Advantages
    Efficient Power Distribution: Optimized specifically for dispersed power networks, the transformer shortens distribution line lengths, reducing losses and improving power quality.
    Energy-Efficient Core Design: Its innovative core reduces line losses by over 60%. Additionally, the pole-mounted design saves installation space.
    Sealed Structure: The fully sealed design provides excellent overload capacity, continuous reliability, and low maintenance, ensuring longevity.
    Model Description
    Code Meaning
    D Single-phase oil-immersed
    11 Performance level code
    □□□ Rated capacity (kVA)
    □ Voltage level (kV)
    □ Special environment code: GY (High altitude), WF (Corrosion-resistant), TA (Dry tropics), TH (Humid tropics)
    Service Conditions
    Parameter Specification
    Device Type Outdoor
    Max Ambient Temperature +40°C
    24-hour Avg Temperature +35°C
    Min Ambient Temperature -25°C (Customizable to -45°C)
    Earthquake Intensity ≤8
    Altitude ≤1000m
    Installation Environment Free from fire, explosions, chemical corrosion, or earthquakes
    Performance Parameters
    Rated Capacity (kVA) High Voltage (kV) Tap Range (%) Low Voltage (kV) Vector Group Symbol No-load Loss (W) Load Loss No-load Current (%) Short Circuit Impedance (%)
    5 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 40 215 3.2 3.5
    10 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 45 235 2.8 4.0
    15 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 53 315 2.8 4.0
    20 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 62 405 2.8 4.0
    25 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 70 480 2.8 4.0
    30 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 80 560 2.8 4.0
    50 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 120 855 2.3 4.0
    63 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 135 1020 2.1 4.0
    80 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 160 1260 2.0 4.0
    100 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 190 1485 1.9 4.0
    125 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 220 1755 1.8 4.0
    160 6,6.3,10,10.5,11 ±2×2.5%, ±5% 0.22, 0.23, 0.24 Ii0, Ii6 260 2050 1.6 4.0
    The Single-Phase Oil-Immersed Transformer is ideal for efficient, reliable power distribution, providing superior performance and minimal maintenance.