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Transformers from China

High-efficiency, reliable transformers manufactured by Jiangsu Hengyi Transformer Co., Ltd. Factory-direct pricing, global delivery, and technical excellence.

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About HY Transformers

Trusted Transformer Manufacturer in China

HY Transformers is a state-level high-tech enterprise integrating production, manufacturing, scientific research, and development. With years of experience in transformer engineering, we deliver reliable, efficient, and innovative power solutions to clients worldwide.

Our comprehensive product line includes oil-immersed transformers, dry-type transformers, and prefabricated substations, meeting international standards and customized requirements for diverse industrial and commercial applications.

  • ISO & CE Certified Manufacturing
  • Advanced R&D with Patented Technologies
  • Global Market Presence
  • Full Lifecycle Quality Control
HY Transformers Factory

Our Product Range

Explore our wide selection of high-performance transformers designed for efficiency, durability, and safety in power distribution and transmission.

Oil Immersed Transformer S11

Oil Immersed Transformer S11

High-efficiency oil-cooled distribution transformer with low loss and long service life.

  • Capacity: 50–2500 kVA
  • Voltage: 10/0.4 kV
  • Standard: IEC, GB
Oil Immersed Transformer S13

Oil Immersed Transformer S13

Ultra-low loss design for energy-saving applications in urban and rural grids.

  • Capacity: 50–3150 kVA
  • Voltage: 10/0.4 kV
  • Low No-Load Loss
Dry Type SCB11

Dry Type SCB11

Flame-retardant, eco-friendly dry-type transformer ideal for indoor installations.

  • Capacity: 50–2500 kVA
  • Voltage: 10/0.4 kV
  • Class F Insulation
YB Prefabricated Substation

YB Prefab Substation

Compact, factory-assembled substation with transformer, switchgear, and protection.

  • Rated Power: Up to 4000 kVA
  • Outdoor Installation
  • Custom Configurations
SZ11 Transformer

Oil Immersed SZ11

On-load tap-changing transformer for stable voltage regulation under load.

  • Capacity: 315–16000 kVA
  • Voltage: 35/10 kV
  • OLTC Available
S(B)H15 Amorphous Alloy

S(B)H15 Amorphous Alloy

Ultra-low no-load loss transformer using amorphous metal core technology.

  • Energy Saving >70%
  • Capacity: 50–1600 kVA
  • Environmentally Friendly
Dry Type SCB12

Dry Type SCB12

Next-generation dry-type transformer with enhanced thermal performance and safety.

  • Capacity: 80–2500 kVA
  • Voltage: 10/0.4 kV
  • High Short-Circuit Withstand
Three-dimensional Transformer

Three-Dimensional Transformer

Innovative 3D core design for reduced noise, vibration, and magnetic flux leakage.

  • Low Noise & Loss
  • Compact Structure
  • High Efficiency
View Full Product Catalog

Why Choose HY Transformers?

Efficient Solutions

Strong design team with rich experience to provide optimal power solutions tailored to your project needs.

Reliable Quality Assurance

Full-process quality control with self-inspection, mutual checks, and final testing to ensure zero defects.

Strong After-Sales Service

Professional support team with procedural systems for installation guidance, maintenance, and troubleshooting.

Global Customer Reputation

Trusted by clients in Asia, Africa, South America, and the Middle East for quality and reliability.

Solid Scientific Research

State-level high-tech enterprise with patented technologies and R&D collaboration with universities.

Complete Management System

Robust management framework ensures continuous improvement, innovation, and on-time delivery.

15+
Years Experience
50+
Countries Served
10K+
Units Delivered
99.8%
Customer Satisfaction

Frequently Asked Questions

What types of transformers do you manufacture?

We produce oil-immersed transformers (S11, S12, S13, SZ11), dry-type transformers (SCB10, SCB11, SCB12), amorphous alloy transformers (S(B)H15), and prefabricated substations (YB type).

Are your transformers compliant with international standards?

Yes, our products meet IEC, GB, and other international standards. We also provide CE, ISO, and other certifications upon request.

Can you customize transformers based on our specifications?

Absolutely. We offer OEM and ODM services with full engineering support to meet your voltage, capacity, cooling, and environmental requirements.

What is your production and delivery time?

Standard models: 15–30 days. Custom designs: 30–60 days. We offer FOB, CIF, and DDP shipping options worldwide.

Do you provide after-sales support?

Yes, we offer technical guidance, installation support, maintenance training, and spare parts supply for the entire product lifecycle.

Get in Touch

For inquiries, quotes, or technical support, contact our sales team directly.

Contact Information

Contact: Wendy Sun

Mobile: +86 195 5220 1823 / +86 176 0616 6946

WeChat: +86 136 8513 5561

Email: [email protected]

Address: No.36 Gaoxin Rd., Economic Development Zone, Xuzhou, Jiangsu, China 221000

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