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Prefabricated Transformer

(Total 3 Products)

Our Prefabricated Transformer is an integrated and pre-assembled power solution produced by our factory with over 36 years of professional Transformer manufacturing experience. It combines transformer body, high and low voltage switchgear, protection devices and control components into one compact unit, widely used for urban power distribution, industrial parks, residential communities and temporary power supply projects.
Adopting premium low-loss silicon steel sheets and mature winding technology, this product features low energy consumption, low temperature rise and stable operating performance. Its modular prefabricated design greatly simplifies on-site installation, cuts construction time and reduces maintenance workload. The whole unit has excellent insulation and safety protection, adapting to various outdoor and indoor working conditions.
All products pass strict quality inspection and relevant certifications. We offer diverse standard specifications and support personalized customization. With reliable quality, space-saving layout and cost advantages, our prefabricated transformers deliver efficient, safe and long-lasting power distribution services for global industrial and commercial customers.

High-Efficiency Prefabricated Transformers with 30+ Years Expertise

Reliable power distribution for industrial operations. Hunan Hongye Transformer Co., Ltd. delivers specialized manufacturing experience.

Integrated Modular Design

Combines transformer bodies, switchgear, and protection devices into compact units. Simplifies installation, reduces construction time, and lowers maintenance costs globally.

Premium Components

Utilizes WISCO grain-oriented silicon steel sheets and oxygen-free copper wires. Patented coil structures ensure low temperature rise, noise, and energy loss.

Certified Quality

Recognized "Little Giant" enterprise holding ISO9001, ISO14001, and ISO45001. Products meet GB/IEC standards verified by national centers like Suzhou Electrical Apparatus Science Research Institute.

Serving diverse sectors including smelting, metallurgy, new energy, and rail transit.
Partner with Hongye for efficient, safe, and long-lasting power distribution.

Premium Materials for High-Performance Prefabricated Transformers

At Hunan Hongye Transformer Co., Ltd., we prioritize material excellence to ensure the longevity and efficiency of our prefabricated transformers. Our commitment to quality begins with sourcing top-tier raw components that meet rigorous international standards.

Advanced Core Technology

We utilize WISCO 27QG100 grain-oriented cold-rolled silicon steel sheets. This advanced core technology directly contributes to lower energy consumption and reduced operating costs.

  • Flux density below 1.68 T
  • No-load loss reduced by 10-20%
  • 45-degree full miter 3-step stacked structure

High-Conductivity Windings

For windings, we select oxygen-free copper wire from Guilin International. Combined with our patented continuous-winding HV coils and spiral LV coils, this setup enhances short-circuit withstand capacity.

  • Current density < 3.3 A/mm²
  • Patented continuous-winding HV coils
  • Spiral LV coils with longitudinal oil ducts

Robust Tank Manufacturing

The durability of our prefabricated transformers is further guaranteed by robust tank manufacturing. Multi-layer high-performance paint coatings protect against corrosion in harsh environments like metallurgy and chemical industries.

  • Automatic welding lines
  • Pressure tests exceeding 5x national standard
  • Corrosion-resistant multi-layer coating

Superior Performance Metrics

These premium materials enable our products to achieve superior performance metrics. By integrating these high-quality components, we deliver efficient power solutions that minimize maintenance needs.

  • Temperature rise ≤ 45°C
  • Noise levels: 50-60 dB
  • Maximized operational reliability
Prefabricated Transformer Construction Detail

Hongye Prefabricated Transformers: Energy-Efficient, Compact Power Solutions for Industrial & Urban Grids

As a specialized manufacturer with over 30 years of experience in transformer production, Hunan Hongye Transformer Co., Ltd. delivers prefabricated transformers that integrate high-voltage switchgear, low-voltage distribution, and protection systems into a single compact unit.

Ultra-Low Loss Performance

Our units utilize premium WISCO grain-oriented silicon steel sheets and oxygen-free copper windings to achieve ultra-low loss performance. This design significantly reduces no-load and load losses compared to industry standards, helping smelting, metallurgy, and industrial clients lower electricity consumption and operational costs.

Modular Construction

The modular construction simplifies on-site installation and cuts project timelines. With type-tested reliability up to 110kV and compliance with GB and IEC standards, our prefabricated substations ensure stable power distribution for urban grids, new energy projects, and heavy industrial applications.

Industrial Reliability

Designed for the rigorous demands of modern infrastructure, ensuring long-term stability and minimal maintenance requirements across diverse operating environments.

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