Products
500kV power transformers are mainly used for long-distance transmission and distribution of electric power. They convert high voltage into voltage levels suitable for urban power supply networks or specific equipment, ensuring the stability and reliability of power transmission.
The 330kV three-phase integrated power transformer ensures low temperature rise of the oil level and windings through precise oil circuit design and guided cooling technology, while avoiding the risk of oil flow inside the transformer being electrified. It is widely used in power grids, northwest China, photovoltaics, wind power, energy storage, hydrogen production, factories and other power fields.
As a key equipment in the power system, 220kV power transformer shoulders the heavy task of voltage conversion and power transmission. It has a compact structure and consists of iron core, winding, oil tank, insulating sleeve and other components. It is widely used in power grid, photovoltaic, wind power, energy storage, hydrogen production, factory and other power fields.
110kV power transformer plays a vital role in the power system. It is mainly responsible for converting between different voltage levels to ensure the stable transmission and distribution of electric energy. Its basic structure includes several parts such as iron core, winding, oil tank, insulation material, cooling device and protection device. It is widely used in power grid, photovoltaic wind power, energy storage, hydrogen production, factory and other power fields.
Case Studies
About Us
As a subsidiary of Shenzhen LiYe Group (acquired in 2004), we stand at the forefront of high-voltage power transformer technology, specializing in the R&D, manufacturing, and full lifecycle management of transformers up to 750kV.
With a registered capital of US$40 million, we are strategically located in Nanjing Jiangbei New Area with multimodal transport infrastructure.The company currently employs over 700 staff members, including more than 200 technical professionals.
Shenzhen Liye Group has earned prestigious honors including “China Top 500 Enterprises”, China Top 500 Manufacturing Enterprises”, ” China Top 500 Private Enterprises” and China Top 500 Brands” etc.
Business Partner
Smart Manufacturing
Insulation Manufacturing Center
Insulation Manufacturing Center
We craft every insulation part with top-grade materials and modern machines, ready for transformers up to 750 kV.
*NC-3535TC Gantry-type 4-axis CNC Machining Center.
*LM3-CNC-3030 Heavy-Duty Gantry-Type 3-Axis CNC Drilling & Milling Center
*MJWS-6312 Horizontal Panel Saw
Winding manufacturing center
Winding manufacturing center
We utilize advanced automated equipment and winding techniques for transformer manufacturing and assembly, to meet the production requirements for transformers up to 750kV.
*4000kN CNC Coil Press Machine
*VW-40 Vertical vertical VFD winding machine
*HW-10 Horizontal VFD winding machine
Oil Tank Manufacturing Center
Oil Tank Manufacturing Center
We employ precision welding technologies and advanced CNC equipment to manufacture key metal components including transformer tanks, conservators and core clamps, to meet the production requirements for transformers up to 750kV.
*FCP8025-GI (12000) Fiber Laser Cutting Machine
*WE67K-800/8000 CNC Press Brake
*G13030 Fiber Laser Cutting Machine
*Automation welding machine
Core Manufacturing Center
Core Manufacturing Center
We produce transformer cores by using advanced core stacking technology and precision cutting line processes, to meet the production requirements for transformers up to 750kV
*TBA-1000s Germany Georg Cutting Line
*CAZJ-1250-10t/5t CNC Silicon Steel Slitting Line
*200t Core Turning Machine
Assembly Center
Assembly Center
We adopt modular assembly processes, implements strict manufacturing standards and inspection procedures to ensure precision in insulation, mechanical stability, and electrical performance for transformers manufactured up to 750kV.
*VPD-600 Vapor Phase Drying (VPD) Equipment
*W1000ZH Transformer Transport Vehicle
*300t, 100t, 50t Konecranes (Finland) Overhead Cranes
Testing Center
Testing Center
The testing hall covers a area of 42m*40m*36m with hexagonal electromagnetic shield, it comes with the following advantages:
- Shield effectiveness: ≥70dB by using perforated acoustic panels
- Partial discharge background: <1pC
- Grounding resistance: ≤0.5Ω
- Reverberation time: <2 seconds (within the frequency range of 100-5000Hz)
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Transformer Production
and R&D Capabilities
Product Technology
As a subsidiary of Shenzhen LiYe Group (acquired in 2004), we stand at the forefront of high-voltage power transformer technology, specializing in the R&D, manufacturing, and full lifecycle management of transformers up to 750kV.
With a registered capital of US$40 million, we are strategically located in Nanjing Jiangbei New Area with multimodal transport infrastructure.The company currently employs over 700 staff members, including more than 200 technical professionals.
Shenzhen Liye Group has earned prestigious honors including “China Top 500 Enterprises”, China Top 500 Manufacturing Enterprises”, ” China Top 500 Private Enterprises” and China Top 500 Brands” etc.
R&D Center
Nanjing Liye Power Transformer R&D Center leads innovation in energy transmission, focusing on high-efficiency transformers, intelligent grid integration, and eco-friendly solutions. Collaborations with top universities fuel research in core technologies, leading to national patents and contributions to global energy standards. We prioritize continuous innovation, developing ultra-high-voltage solutions, precision manufacturing, and predictive maintenance for superior performance and longevity.
