Korean Clients Visit VKE Transformer For Supplier Assessment

Sep 19, 2025

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Core Cutting
In-Depth Factory Tour

The tour begins with the transformer's magnetic core. We use high-permeability grain-oriented silicon steel sheets, which are precisely processed by fully automated cutting lines. These silicon steel sheets are then assembled using a stepped-lap stacking process to ensure uniform magnetic flux distribution. This effectively reduces no-load losses and operational noise, laying the foundation for the transformer's efficient operation.

 

Next, the clients arrive at the coil winding area. We use oxygen-free copper or aluminum wires, which are precisely wound by computer-controlled winding machines. Throughout the winding process, constant tension control is maintained to ensure the coil structure is compact and uniform.

 

Insulating treatment: Oil immersed transformers utilize an oil-channel insulation system composed of insulating paper and insulating spacers, while dry type transformers employ vacuum pressure impregnation (VPI) process or epoxy resin casting process to form a complete insulation system.

Coil Winding
 

Then the clients move to the active part assembly area. Our technicians are inserting the coils onto the core limbs, and installing the corresponding insulating parts and fastening devices. The assembly accuracy at this stage directly impacts the electrical performance and mechanical stability of the transformer.

Final Assembly

Testing Center

Finally, the clients visit our testing center.

Our tests include but are not limited to:

Turns ratio tests

Winding resistance tests

Insulation resistance tests

Power frequency withstand voltage tests

Induced withstand voltage tests

Partial discharge tests

All test items are strictly carried out in accordance with national and international standards to ensure that the product performance and safety performance are fully compliant.

Partnership for the Future

We look forward to leveraging this visit as an opportunity to effectively align our manufacturing capabilities with the clients' project requirements. Whether it involves the stable supply of standard products or the customized development for specific application scenarios, we will spare no effort to provide technically reliable services and high-quality products.

Transformer Product Presentation