Oil Immersed Transformer Cores

Oil immersed transformer cores are widely used in utility grids, rural power networks, and outdoor distribution facilities. These applications require cores with higher reliability standards. They need excellent oil resistance, low losses, and long-term thermal stability.

Wuxi Zhongpu Electric has extensive experience in manufacturing these cores. We carefully select high-quality grain-oriented silicon steel coils from leading steel manufacturers such as Baowu and Ansteel. We never use recycled scrap materials and maintain strict control over material thickness.

This ensures that our cores maintain low no-load loss and stable magnetic performance during long-term operation in transformer oil and changing temperature conditions.

Established in 2000, Wuxi Zhongpu Electric has 26 years of experience in the transformer core industry. We have 100 employees, including a quality control team of 6 professional inspectors.

For oil immersed transformer cores, we support multiple energy efficiency series, including S11, S13, S18, S20, and S22. Our capacity range covers 25kVA to 10000kVA, while voltage ratings range from 10kV to 110kV.

We manufacture different core structures, including core-type stacked cores, flat wound cores, and three-dimensional wound cores. All products are customized according to customer drawings and technical requirements.

Our oil immersed transformer cores provide flexible solutions with reliable performance for different power applications.

Strict Process Control at Every Stage

We focus on detailed process management throughout manufacturing. Our shearing process uses automated and intelligent equipment to ensure smooth cutting of every silicon steel sheet.

Burr size is controlled within specified standards. During the lamination stacking process, we strictly control joint gaps to reduce magnetic resistance and improve core performance.

We implement the "three-inspection" quality system. From self-inspection to final inspection, every production step is documented and traceable.

Before shipment, every core undergoes 100% inspection to ensure there are no appearance defects or dimensional deviations. Customers can also visit our factory for acceptance inspection or arrange third-party quality supervision.

Durable Cores for Remote Locations

We understand that oil immersed transformers are often installed in remote outdoor environments where maintenance can be difficult. Therefore, we focus on long-term reliability and stable performance.

Before production, we carefully review your operating environment and voltage requirements. Before shipment, we provide professional rust-proof packaging and reinforced wooden crates to ensure safe transportation.

After delivery, we provide technical support and follow-up services. For international projects, we respond quickly to technical inquiries.

We aim to provide reliable oil immersed transformer cores that support stable operation of modern power networks.