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Power Distribution Transformer--TRANSFORMADOR TRIFASICO TIPO POSTE

The product has the characteristics of high efficiency and low loss,which can save a lot of money and operating costs,and has remarkable social benefits.It is a high-tech product promoted by the state.

    1. General Introduction
    The Power Distribution Transformer is a critical component in electrical grids, responsible for stepping down high-voltage electricity from transmission lines to lower voltages suitable for end-user applications. Designed to ensure reliable, efficient, and safe power delivery, these transformers play a pivotal role in residential, commercial, and industrial settings. Available in various configurations, including dry-type and oil-immersed models, they adapt to diverse environmental and operational requirements.
    2. Technical Parameters
    Parameter
    Specification
    Voltage Rating
    Primary: 11kV–33kV; Secondary: 0.4kV–10kV
    Power Rating
    50kVA–2500kVA
    Frequency
    50Hz or 60Hz
    Insulation Class
    F (Dry-Type), Mineral Oil (Oil-Immersed)
    Cooling Method
    AN/AF (Dry-Type), ONAN/ONAF (Oil-Immersed)
    Efficiency
    ≥98% at rated load
    Impulse Withstand Voltage
    40kV–75kV (depending on voltage class)
    Noise Level
    ≤65dB (at full load)
    3. Key Features
    3.1 High Efficiency
    • Utilizes low-loss silicon steel cores and optimized winding designs to minimize no-load and load losses, reducing operational costs and carbon footprint.
    • Meets international energy efficiency standards (e.g., IE3, IEEE C57).
    3.2 Reliable Insulation
    • Dry-Type Transformers: Employ epoxy resin casting or vacuum pressure impregnation (VPI) for excellent moisture resistance, fire safety, and long-term durability. Ideal for indoor installations.
    • Oil-Immersed Transformers: Feature mineral oil insulation with high dielectric strength, providing enhanced cooling and protection against electrical faults. Suitable for outdoor and heavy-duty applications.
    3.3 Safety & Protection
    • Equipped with built-in protection mechanisms, including overcurrent, overvoltage, and over-temperature relays.
    • Oil-immersed models include Buchholz relays and pressure relief devices to prevent internal faults and oil leakage.
    3.4 Adaptable Design
    • Available in single-phase or three-phase configurations to suit different load requirements.
    • Offers customizable tap changers for ±2.5% or ±5% voltage regulation, ensuring stable power supply under varying grid conditions.
    3.5 Low Noise Operation
    • Advanced core lamination and vibration-damping technologies reduce mechanical noise, making it suitable for noise-sensitive environments such as residential areas and commercial buildings.
    4. Applications
    • Residential Power Distribution: Steps down high-voltage grid power to 230V/400V for household use.
    • Commercial Buildings: Powers offices, shopping malls, hospitals, and other facilities with reliable medium to low-voltage electricity.
    • Industrial Settings: Supplies electricity to factories, manufacturing plants, and industrial parks, supporting heavy machinery and equipment.
    • Renewable Energy Integration: Connects distributed generation sources (e.g., solar farms, wind turbines) to the grid.
    • Urban and Rural Grids: Enhances grid stability and power quality in both urban and remote rural areas.

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