Introduction to the Transformer Factory Testing Process

Product quality is the vital foundation for the safe and stable operation of power systems. To ensure that every transformer meets international standards and customer specifications, we have established a rigorous quality control system covering the entire process—from raw material procurement to the shipment of finished products. We conduct comprehensive testing on every unit to guarantee reliable performance and operational stability.

During production, we first inspect key raw materials—such as silicon steel sheets, copper conductors, insulating materials, and transformer oil—to ensure compliance with relevant technical standards. Subsequent stages include core stacking, winding fabrication, active part assembly, vacuum drying, and final assembly. Each step is strictly controlled according to precise process requirements to ensure product consistency and reliability.

Upon completion of assembly, the transformers undergo factory acceptance testing. These tests include winding DC resistance, turns ratio, insulation resistance, no-load and load losses, short-circuit impedance, withstand voltage, and sealing performance checks. Comprehensive parameter testing ensures the products meet the requirements of international and national standards, such as IEC 60076 and GB 1094.

Furthermore, to meet the needs of diverse markets and applications, we offer additional services such as temperature rise tests, partial discharge tests, and third-party inspections. All test data are compiled into complete quality records and delivered to the customer alongside the product documentation, providing a reliable basis for future equipment operation and maintenance.

Strict quality control and comprehensive testing procedures are essential to ensuring the long-term, safe operation of our transformers. As a professional transformer manufacturer, we prioritize quality above all else, delivering stable, efficient, and reliable power equipment solutions to customers worldwide. Every transformer undergoes rigorous testing before leaving the factory, ensuring superior quality for applications in industry, power utilities, new energy, and infrastructure development.