At Tianan, the high quality of every transformer originates from a well-established and standardized production process. From raw material inspection to complete machine testing, the entire chain strictly follows operational specifications, ensuring full traceability. The Zambia project, with 7 distribution transformers of model S-2000/33 produced during the same period, followed the same process.

Zambia Project Technical Parameters:

Core Stacking: Building the Core Quality of the Transformer

The core is the key magnetic circuit component of a transformer, directly affecting operational stability and energy efficiency. In production, high-quality silicon steel sheets are stacked layer by layer, with precise alignment of joints and strict control of lamination gaps. After stacking, accurate pressing and professional measurement ensure a uniform and stable magnetic circuit, effectively controlling no-load losses and laying a solid foundation for efficient equipment operation.

Coil Winding: Fine Craftsmanship Ensures Electrical Performance

Relying on a combined process of automated equipment and manual fine-tuning, the electromagnetic wire is wound uniformly and tightly in strict accordance with the designed number of turns and inter-layer insulation standards. Throughout the winding process, key parameters such as turn-to-turn insulation and DC resistance are continuously monitored, steadily consolidating the equipment's electrical performance and providing a reliable guarantee for subsequent performance tests.

Core and Coil Assembly: Refined Integration Ensures Operational Reliability

After core and coil assembly, standardized pressing, precise measurement, and vacuum drying are applied to effectively remove internal moisture and residual gases, comprehensively ensuring the stability and durability of the insulation system. This step strictly controls the cleanliness of the working environment, avoiding quality risks caused by impurities and moisture.

Tank Manufacturing: Meticulous Details Protect Sealing Quality

From steel plate cutting, welding and forming, to shot blasting for rust removal and multi-layer coating protection, each step of tank production follows standardized operating procedures, with strict control over every process detail. After all processes are completed, professional tightness tests are conducted to comprehensively identify potential issues, ensuring the tank is leak-free, has excellent protective performance, and is suitable for various operating conditions.

Final Assembly: Standardized Integration Perfects Equipment Performance

Throughout the entire process of core insertion into the tank, lead connection, switch assembly, accessory installation, and vacuum oil filling, workers strictly follow production standards to complete all integration tasks in an orderly manner. After oil filling, sufficient standing time is allowed for the insulating material to fully saturate and bond, further enhancing the overall insulation performance and operational stability of the equipment.

Final Testing, Rectification and Delivery

Each finished transformer undergoes a complete set of factory performance tests, with each parameter and indicator verified one by one. Only after all standards are met can the qualified label be affixed. Customers are welcome to witness the testing process on site. The 7 transformers for the Zambia overseas project have successfully passed all factory tests and inspections and are now awaiting the customer's acceptance arrangement before being shipped to the overseas project site.

Ningbo Tianan: Stable Quality Through Standardized Processes, Reliable Performance Through Fine Craftsmanship

Whether it is small-batch custom orders or large-scale supply demands such as urban and rural grid renovation, industrial park infrastructure, or key overseas projects, Ningbo Tianan always adheres to uniform production standards and standardized processes, delivering every piece of power equipment with dedication.

For more information, please visit: https://www.tiananoverseas.com/