Vacuum Radiative Drying System

System Role

• Used for drying and setting transformer coils and active parts after assembly, reducing the risk of moisture in insulation materials.
• Provides stable temperature control and process discipline for subsequent oil filling, final assembly, and factory testing.
• Matches the production-rhythm requirements of products at different voltage classes.
• Supports a critical insulation-treatment stage in transformer manufacturing so the active part is stable before oil filling.
• Improves treatment consistency for insulation components through controlled drying parameters and lowers quality risk from moisture variation.
• Connects smoothly with upstream winding and assembly as well as downstream oil filling, improving overall manufacturing continuity.

Equipment Features

• Drying for 10kV products can typically be completed within 8 to 10 hours.
• Drying for 35kV products can typically be completed within 15 to 24 hours.
• Compared with traditional vacuum pressure-variation drying furnaces, it can significantly reduce energy consumption.
• Supports different temperature, time, and process-control strategies by product specification.
• Balances drying effectiveness with production-rhythm requirements, reducing waiting and backlog.
• Improves repeatability and controllability in this critical insulation-treatment step through more stable process execution.

Business Value

• Shortens the drying cycle and improves overall transformer production rhythm.
• Reduces energy cost in manufacturing and improves factory operating efficiency.
• Improves insulation-treatment stability and supports a higher first-pass test rate.
• Lowers the risk of rework, retesting, and delivery delays caused by incomplete drying.
• Helps balance production efficiency and quality-control goals, improving manufacturing stability.
• Builds a more reliable process foundation for downstream oil filling, assembly, and factory testing.