Yulan Transformer designs and manufactures a comprehensive range of transformers up to 110 kV class, covering power transformers, special purpose transformers and magnetically controlled reactors. With single-unit capacity up to 120,000 kVA and annual production capacity of 2.6 million kVA, our transformer portfolio serves power generation, transmission, distribution and heavy industrial applications worldwide.
Reply within 24 hours · Custom designs to project specification · Factory test reports supplied with every unit
Yulan Transformer is a Chinese transformer manufacturer founded in 1999, producing power transformers, special purpose transformers and magnetically controlled reactors up to 110 kV class. Single-unit capacity reaches 120,000 kVA with annual production capacity of 2.6 million kVA. Products include oil-immersed and dry-type transformers for power generation, transmission, distribution and heavy industrial applications. Manufacturing facilities in Jiangshan, Zhejiang Province, China, are equipped with a 400 kW kerosene vapor phase vacuum drying system (KVPD), 1200 kV impulse test equipment, 400 kV partial discharge free power frequency withstand voltage test transformer and fully computer-controlled winding machines. Every transformer undergoes rigorous testing at the National Transformer Product Testing Center of China before delivery. The company operates ISO 9001:2015, ISO 14001 and ISO 45001:2018 management systems, complies with IEC 60076 and IEEE C57, and exports to more than ten countries serving utilities, industrial facilities and renewable energy projects. Customization is available for specific impedance, cooling method (ONAN/ONAF/OFAF) and tap changer configurations. Request a quotation with your voltage class, capacity, impedance and cooling requirements.
Our portfolio covers distribution, transmission and industrial classifications. Voltage classes range from 10 kV to 110 kV, with customization available for specific impedance, cooling method and tap changer configurations.
Oil-immersed and dry-type power transformers for generation, transmission and distribution networks. Available from 10 kV to 110 kV with single-unit capacity up to 120,000 kVA. Cooling options include ONAN, ONAF and OFAF.
View Power TransformersSpecial purpose transformers including furnace transformers and rectifier transformers engineered for heavy industrial loads, high harmonic content and demanding duty cycles. Custom impedance and cooling designed to process requirements.
View Special Purpose TransformersMagnetically controlled reactors for continuous, smooth reactive power regulation in transmission and industrial networks. Used for voltage support, dynamic reactive compensation and system stability improvement.
View Magnetically Controlled ReactorsOur manufacturing facilities in Jiangshan, Zhejiang Province, China, are equipped with advanced production and test equipment. Every transformer undergoes rigorous testing at the National Transformer Product Testing Center of China before delivery.
Computer-controlled winding machines ensure consistent winding tension and turn accuracy for repeatable impedance. The 400 kW kerosene vapor phase vacuum drying system (KVPD) controls insulation moisture, while the 1200 kV impulse test equipment and 400 kV partial discharge free power frequency withstand voltage test transformer verify dielectric performance.
As an ISO 9001:2015, ISO 14001 and ISO 45001:2018 certified manufacturer, Yulan Transformer ensures quality management, environmental responsibility and occupational safety across all production processes. Our products are deployed across China and exported to more than ten countries, serving utilities, industrial facilities and renewable energy projects.
All products comply with IEC 60076 and relevant IEEE C57 standards. Management systems are maintained in line with ISO requirements.
Provide the following inputs and our engineering team will return a transformer design proposal and quotation.
| Input | Why it matters |
|---|---|
| Rated voltage class | Determines insulation level and basic design (10 kV to 110 kV) |
| Rated capacity | Sets core and winding sizing, up to 120,000 kVA |
| Impedance requirement | Affects fault current and protection coordination |
| Cooling method | ONAN / ONAF / OFAF selection affects thermal design |
| Tap changer configuration | On-load or off-circuit tap range for voltage regulation |
| Installation environment | Indoor, outdoor, altitude, pollution and seismic conditions |
| Application type | Generation, transmission, distribution or industrial duty |
| Standards and tests | IEC 60076, IEEE C57 or project-specific requirements |
| Project schedule | Delivery planning and factory test slot allocation |
Send us your rated voltage, capacity, impedance, cooling method and tap changer requirements. Our engineering team will confirm the design, propose oil-immersed or dry-type construction, and return a quotation with drawings and lead time.
Typical response time: within 24 working hours · English technical documents and test reports provided
