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JSYW Group

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COMPANY PROFILE

Jiangsu Yawei Electric Group Co., Ltd. has a strong production capacity and efficient marketing team. Products include 110KV, 220KV large ultra-high voltage transformers and 35KV below various dry transformers, oil-immersed transformers, amorphous alloy transformers, pre-installed substation and various specifications of box transformer, furnace transformer, rectifier transformer, mining transformer and other special transformers. All products of the company have passed the routine, type and special tests of the National Transformer Quality Supervision and inspection Center and Wuhan High Voltage Research Institute of the State Electric Power Corporation. The enterprise has passed IS09001: 2015 CE quality management system certification; Jiangsu province enterprise measurement certification; At the same time, 10KV, 35KV class power transformers, box substation and the adoption of IEC certification. Product sales cover the national market, but also exported to Australia, New Zealand, India, Madagascar, Vietnam and other countries and regions.

Years Of Experience

Employees

Awards Received

Factory Area (㎡)

Product Video

WHY CHOOSE US

Industry-Leading Expertise

With years of experience in transformer manufacturing, Yawei combines cutting-edge technology with deep engineering knowledge to deliver reliable, high-performance solutions.

Customized Solutions

We specialize in designing and producing transformers tailored to your specific requirements, ensuring optimal efficiency and compatibility with your applications.

Superior Quality & Reliability

Our products undergo rigorous testing and adhere to international standards (e.g., ISO, IEC, UL), guaranteeing durability, safety, and long-term performance.

Competitive Pricing

By optimizing production processes and supply chains, we offer cost-effective solutions without compromising on quality.

Fast Delivery & Global Reach

With a streamlined logistics network, we ensure timely delivery worldwide, supported by responsive customer service.

Sustainable Innovation

Committed to energy efficiency and eco-friendly practices, our transformers reduce energy loss and support green initiatives.

Dedicated Support

From pre-sales consultation to after-sales service, our expert team provides end-to-end support to ensure your complete satisfaction.

QUALITY CONTROL

All products in the company's product series have passed routine, type, and special tests conducted by the National Transformer Quality Supervision and Inspection Center and the Wuhan High-Voltage Research Institute of the State Power Company. The company has obtained ISO 9001, ISO 14001, ISO 45001, and ISO 19011 system certifications; Jiangsu Province Enterprise Metrology Qualification Certification; and IEC certification from the International Electrotechnical Commission (IEC), Canadian Standards Association (CSA), and UL certification from Underwriters Laboratories (UL) for its 10kV and 35kV power transformers and substations.

QA/QC (Quality Assurance & Quality Control) Processes

Yawei implements a rigorous QA/QC system to maintain product consistency and reliability:

Incoming Material Inspection

Raw materials (e.g., silicon steel, copper wire, insulation materials) are checked against specifications.
Key Tests: Dimensional accuracy, electrical properties, and mechanical strength.

Production Process Control

Winding & Assembly: Automated winding machines ensure precision in coil turns and insulation.
Soldering & Connections: Verified for proper electrical conductivity and mechanical durability.
Encapsulation & Coating: Ensures protection against moisture and environmental factors.

Final Product Testing

Electrical Tests: Includes turns ratio, insulation resistance, and dielectric strength tests.
Performance Tests: Load testing to verify efficiency and temperature rise limits.

Factory Audits & Continuous Improvement

Regular internal and third-party audits (e.g., CQC factory inspections) ensure ongoing compliance1.
Corrective and preventive actions (CAPA) are implemented based on test results and customer feedback.

Traceability & Documentation

Each transformer has a unique serial number for full traceability.
Production records, test reports, and certification documents are archived for regulatory and customer review.

R&D Team

The company invests in cutting-edge design software and collaborates with industry experts to stay at the forefront of transformer technology.

Yawei Transformer has established a highly skilled R&D team consisting of over 300 engineers and technical experts.

The team focuses on:

SUSTAINABILITY

Yawei Transformer adheres to the business philosophy of "Innovation is the foundation of development, quality is the cornerstone of survival, integrity is the way of operation, and management is the source of efficiency." The company regards energy conservation and environmental protection as a key strategic direction for sustainable development. Committed to R&D and production of high-efficiency, low-carbon, and eco-friendly power equipment, Yawei aims to reduce energy loss, lower carbon emissions, and promote the construction of green power grids.

Green Manufacturing

Implements the ISO 14001 Environmental Management System to ensure efficient resource utilization and minimal pollution during production.
Adopts clean production practices to reduce industrial wastewater and exhaust emissions while optimizing energy efficiency.

Low-Carbon & Energy Efficiency

Product design complies with IEC 60076 and GB/T 1094 standards to guarantee high efficiency and low-loss operation.
Utilizes Computer-Aided Design (CAD) to optimize structure, minimize material waste, and enhance energy performance.

Circular Economy

Promotes amorphous alloy transformers (SH15, SCBH15 models), which reduce no-load losses by 60%-80% compared to traditional silicon steel transformers, significantly cutting grid standby consumption.
Develops applications of recyclable materials, such as eco-friendly epoxy resin-cast dry-type transformers, to minimize hazardous substance usage.

Energy-Efficient Products & Technologies
Renewable Energy Solutions
Eco-Friendly Process Improvements
Certifications & Honors
Future Development Goals

Energy-Efficient Products & Technologies

High-Efficiency Transformer Series
S13 Oil-Immersed Transformers: 30% lower no-load loss than traditional S11 models, meeting State Grid energy-saving requirements.
SCB13 Dry-Type Transformers: Employ epoxy resin vacuum casting for low partial discharge and noise, ideal for urban load centers.
Smart Capacity-Adjusting Transformers: Automatically adjust capacity, reducing no-load loss by up to 80% under light loads—perfect for fluctuating demand scenarios.
Renewable Energy Solutions

Solar/Wind-Specific Transformers: Adapt to renewable energy volatility, enhancing grid absorption capacity.
Underground Transformers: Reduce land use and visual pollution, suitable for urban landscapes.
Eco-Friendly Process Improvements

Oil-Free Designs: Dry-type transformers and SF6 gas-insulated switchgear eliminate oil contamination risks.
Low-Noise Technology: Optimized magnetic circuits and vibration-damping structures keep operational noise below 50dB, making them suitable for residential areas.
Certifications & Honors

China Energy Conservation Product Certification (CQC): Multiple products certified for leading energy efficiency.
State Grid Qualified Supplier: Products widely used in rural grid upgrades, supporting energy-saving improvements.
Jiangxi Province Energy-Saving & Eco-Friendly Product Award: Recognized for contributions to regional green power initiatives.
Future Development Goals

Yawei plans to expand R&D in smart grid and energy storage-compatible transformers, while exploring bio-based insulating materials like vegetable insulating oil to achieve full lifecycle carbon neutrality.
Through continuous innovation, Yawei Transformer is driving the power industry toward higher efficiency and cleaner operations, embodying the sustainable development principle that "Lucid waters and lush mountains are invaluable assets."