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Energy-Efficient High-Capacity 35kV Class Distribution Transformer for Modern Power Infrastructure

The 35kV Class Distribution Transformer is a high-capacity oil-immersed transformer designed for medium-voltage distribution systems. Engineered with advanced magnetic materials and reinforced mechanical structure, it delivers low loss, low noise, and strong short-circuit resistance. It ensures stable and efficient power transmission for utilities, industrial plants, and large infrastructure projects.

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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 / Class H
    Impedance Voltage 7% – 10%
    No-Load Loss Reduced-loss silicon steel core
    Load Loss (75℃) Optimized for energy efficiency
    Short-Circuit Strength High mechanical endurance
    Standards IEC 60076 / GB1094 / GB/T6451 / GB20052

    Product Applications

    Utility Transmission and Distribution Substations
    The 35kV Class Distribution Transformer is widely deployed in utility substations to step down voltage from 35kV to 6–11kV for regional distribution. With a capacity range up to 31.5MVA, it supports large-scale grid infrastructure. Its low-loss design helps reduce transmission energy losses by approximately 10%–15%, improving efficiency and ensuring stable electricity supply across urban and rural networks.
    Energy-Intensive Industrial Production Systems
    This transformer is ideal for heavy industries such as steel manufacturing, mining, cement plants, and petrochemical processing. It operates continuously under high-load conditions and can withstand overloads of up to 120% capacity for short durations. Its strong short-circuit resistance ensures stable operation during voltage fluctuations and protects critical equipment in demanding industrial environments.
    Large Infrastructure and Renewable Energy Projects
    The transformer is widely used in infrastructure projects such as airports, railway systems, ports, and renewable energy installations including wind farms and solar plants. It ensures stable voltage output and efficient energy transmission under varying loads. Designed to operate in extreme temperatures from -40°C to +45°C, it is suitable for outdoor and remote installations.

    Product Advantages

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    Low Energy Loss Design
    Advanced core materials reduce no-load and load losses 
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    High Mechanical Strength
    Reinforced structure enhances durability and transport safety 
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    Strong Short-Circuit Resistance
    Ensures stability under fault and high-stress conditions 
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    Low Noise Operation
    Optimized design minimizes operational noise levels
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    High Capacity Range
    Supports up to 31.5MVA for large-scale applications
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    Long Operational Life
    Designed for over 30 years of continuous service 

    Key Benefits

    The 35kV Class Distribution Transformer is a reliable and energy-efficient power distribution unit designed for medium-voltage systems. Its advanced engineering, durable structure, and low-loss performance make it suitable for utility grids, industrial applications, and infrastructure projects.

    With high reliability, long service life, and compliance with international standards, it provides a cost-effective and dependable option for modern power distribution networks.

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    FAQ

    1. What are the typical applications of a 35kV transformer?

    It is commonly used in utility substations, industrial facilities, and infrastructure projects requiring medium-voltage power distribution.

    2. How does this transformer improve operational efficiency?

    Its low-loss core design reduces energy waste, improving overall system efficiency and lowering operating costs.

    3. Can it handle high-load industrial environments?

    Yes, it is designed for continuous high-load operation and can tolerate short-term overload conditions.

    4. What environmental conditions can it operate in?

    It can operate in extreme temperatures ranging from -40°C to +45°C, suitable for outdoor installations.

    5. What ensures the durability of this transformer?

    High-quality materials, reinforced mechanical structure, and advanced insulation systems contribute to long-term durability.

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