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Lugao is a professional leader in China in Oil Immersed Transformer manufacturing with high quality and reasonable prices. What is Oil Immersed Transformer? As a power transformer that uses high-quality insulating oil as both a cooling medium and electrical insulation. It is designed to efficiently step up or step down voltage in high-voltage and medium-voltage power transmission and distribution systems. Heat dissipation and insulation are the core features of oil-immersed transformers. It is widely used in power grids, industrial plants, infrastructure projects and overseas energy development projects.
Lugao Power Co., Ltd. specializes in the manufacturing of Oil Immersed Transformers with stable performance, long service life, and high safety standards. Our products are engineered to meet IEC, GB, and international requirements, ensuring reliable operation under continuous load and harsh environmental conditions.
High-efficiency magnetic core design with low no-load and load losses
Premium transformer oil for superior insulation and thermal performance
Fully sealed oil tank structure to prevent moisture and oil leakage
Strong short-circuit resistance and overload capacity
Stable operation in high-temperature, high-humidity, and dusty environments
Customizable voltage level, capacity, cooling method, and structure
Oil-immersed transformers have a long service life and low maintenance requirements
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Rated Capacity |
50kVA–50,000kVA |
|
Rated Voltage |
6kV / 10kV / 20kV / 35kV / 110kV |
|
Frequency |
50Hz / 60Hz |
|
Cooling Method |
ONAN / ONAF |
|
Insulation Class |
Class A |
|
Temperature Rise |
In accordance with IEC and GB standards |
|
Standards |
IEC, GB, CE, CCC |
Lugao Oil Immersed Transformers are widely applied in:
Urban and rural power grid upgrading projects
Substations and transmission & distribution systems
Metallurgy, chemical plants, and mining industries
Railways, infrastructure construction, and industrial parks
Residential communities and commercial power supply systems
Our transformers have been successfully installed in projects across Africa, Southeast Asia, the Middle East, Central Asia, and selected European countries, delivering stable and efficient power solutions in diverse environments.
Lugao Power operates under a strict quality management system and has obtained:
ISO9001 Quality Management System Certification
CCC and CE Certification for main products
Each Oil Immersed Transformer undergoes comprehensive routine and type testing before delivery, including insulation resistance tests, voltage withstand tests, temperature rise tests, and performance inspections.
Professional transformer manufacturer with export experience
Focused expertise in Oil Immersed and Dry Type Transformers
Competitive factory-direct pricing
Stable production capacity and reliable delivery schedules
Experienced technical and after-sales support team
Proven track record in overseas power projects
Oil Immersed Transformers are packed in strong export-standard wooden cases or steel structures suitable for long-distance transportation. We support sea freight, land transportation, and container shipment with flexible trade terms such as FOB, CIF, and DDP.
Q1: Are you a manufacturer or a trading company?
We are a professional transformer manufacturer based in China, offering factory-direct supply.
Q2: Can you provide customized Oil Immersed Transformers?
Yes. We provide full customization based on voltage, capacity, standards, and project requirements.
Q3: What is the warranty period?
We provide 12–24 months warranty along with lifetime technical support.
Q4: How long is the delivery time?
Standard models usually take 20–30 days. Custom models depend on specifications.
