Import 35kv Three Phase Oil Immersed Transformer — Buy in Bulk from Supplier in China

The Qingdao Zhongnuo Steel 35KV Three Phase Oil Immersed Transformer is a double-winding unit designed for voltage classes up to 35kV, with a rated capacity range of 50 to 31,500 kVA and a frequency of 50Hz. It operates as a standard oil-immersed transformer, utilising mineral oil for insulation and cooling to maintain performance under sustained electrical loads. The transformer is engineered for three-phase applications, making it suitable for industrial and utility power distribution systems where reliability and efficiency are critical.

Constructed with high-grade silicon steel cores and copper or aluminium windings, this transformer adheres to typical industry standards for oil-immersed units, including temperature rise limits of 65K for windings and 60K for oil under continuous operation. The oil used is standard mineral transformer oil, which provides dielectric strength and thermal stability. The unit is housed in a hermetically sealed tank to prevent moisture ingress, a typical design for outdoor installations in temperate climates.

This transformer is primarily sourced by utilities, industrial plants, and large commercial facilities requiring stable medium-voltage power distribution. Buyers typically confirm compatibility with local grid standards, including voltage regulation and short-circuit impedance, which are critical for seamless integration. Qingdao Zhongnuo Steel supplies these units for bulk procurement, with logistics and installation often coordinated through the supplier’s base in Shandong, China. The transformer is not rated for extreme environments such as damp heat belts or internal power plant use.

Qingdao Zhongnuo Steel is based in Central International Plaza, Qingdao, Shandong Province, China. The company operates as a supplier of electrical equipment, with a focus on transformers and related power distribution solutions. Its harbor-tier trust classification indicates a verified operational presence, though its profile shows a current response rate of 0%, which may reflect limited recent engagement or a preference for direct contact methods.

The supplier’s description explicitly defines its 35KV transformer as a double-winding, oil-immersed unit compliant with 50Hz standards, but does not list additional certifications, production capacity, or trade terms. Buyers are advised to verify these details directly, as the profile does not disclose years in operation, factory size, or client references. The address in Shandong positions it near major ports, which can facilitate logistics for international shipments.