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High-Efficiency 35kV Class Distribution Transformer from China Suppliers | Reliable Factory Solutions for Utilities

Introducing our high-capacity 35kV Class Distribution Transformer, a leading solution for medium-voltage power distribution, designed and manufactured in China. As a trusted supplier in the industry, our factory specializes in producing oil-immersed transformers with a reinforced mechanical structure and an optimized magnetic circuit. This ensures minimal energy loss, reduced noise levels, and exceptional short-circuit resistance. Our transformers are perfect for demanding utility grids, industrial operations, and large-scale infrastructure projects that require reliable and efficient power delivery.

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    Product Details

    Product Parameter

    Parameter Specification
    Rated Voltage 35kV
    Rated Capacity 3150kVA – 31500kVA
    Secondary Voltage 6.3kV / 6.6kV / 10.5kV / 11kV
    Frequency 50Hz
    Tap Range ±5% or ±2×2.5%
    Connection Group Yd11 / YNd11
    Cooling Method ONAN / ONAF
    Insulation Class Class F / H
    Impedance Voltage 7% – 10%
    No-Load Loss Optimized low-loss design
    Load Loss (75℃) High-efficiency performance
    Short-Circuit Resistance High mechanical strength
    Standards IEC 60076 / GB1094 / GB/T6451 / GB20052

    Product Applications

    Utility Substations and Regional Power Grids
    The 35kV Class Distribution Transformer is widely used in utility substations and regional distribution networks to step down voltage from 35kV to 6–11kV levels. With capacity options reaching 31.5MVA, it supports stable power transmission across urban and rural grids. Its low-loss design improves energy efficiency by reducing transmission losses by up to 10–15%, making it ideal for long-distance distribution systems.
    Large-Scale Industrial Manufacturing and Processing Plants
    In heavy industries such as steel plants, mining operations, petrochemical facilities, and cement production lines, this transformer delivers reliable performance under continuous high-load conditions. It supports load fluctuations and short-term overload capacity of up to 120%, ensuring uninterrupted operation of critical equipment. Its strong short-circuit resistance enhances system stability in demanding industrial environments.
    Infrastructure Projects and Renewable Energy Integration
    The transformer is widely deployed in large infrastructure projects such as airports, railways, ports, and renewable energy plants including wind and solar farms. It provides stable voltage output and efficient energy transmission under variable load conditions. Designed to operate in environments ranging from -40°C to +45°C, it ensures long-term reliability in outdoor and remote installations.

    Product Advantages

    Advanced Core Design
    Advanced Core Design
    Reduces no-load loss and improves overall energy efficiency
    Heavy-Duty Mechanical Structure
    Heavy-Duty Mechanical Structure
    Reinforced clamping system enhances durability and transport resistance
    Excellent Short-Circuit Strength
    Excellent Short-Circuit Strength
    Designed to withstand high electrical and mechanical stress
    Low Noise Performance
    Low Noise Performance
    Optimized structure minimizes vibration and acoustic emissions
    High Load Capacity
    High Load Capacity
    Supports up to 31.5MVA for large-scale power systems
    Long Service Life
    Long Service Life
    Designed for over 30 years of stable operation

    Key Benefits

    The 35kV Class Distribution Transformer is a reliable, energy-efficient, and high-performance power distribution unit designed for medium-voltage systems. Its robust construction, low-loss performance, and strong adaptability make it suitable for utility grids, industrial facilities, and infrastructure projects.

    With long service life, stable operation, and compliance with international standards, it provides a dependable and cost-effective choice for modern power distribution networks.

    Key Benefits

    FAQ

    1. What industries benefit most from 35kV distribution transformers?

    Industries such as utilities, mining, steel production, and large infrastructure projects benefit most due to their high power demand.

    2. How does the transformer handle voltage fluctuations?

    It includes adjustable tap settings that help regulate output voltage and maintain stable power delivery.

    3. What cooling options are available for this transformer?

    It supports natural oil cooling (ONAN) and forced air cooling (ONAF) for enhanced thermal performance.

    4. Can this transformer be used in renewable energy systems?

    Yes, it is suitable for wind and solar power plants, ensuring stable energy transmission to the grid.

    5. What factors affect transformer lifespan?

    Operating load, environmental conditions, maintenance practices, and insulation quality all impact the transformer’s service life.

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