Vacuum epoxy resin cast transformers are widely used in various electrical power systems. The manufacturing process of these transformers is a complex and precise procedure that requires attention to every detail. The following are the general steps involved in the manufacturing process of vacuum epoxy resin cast transformers:

Core preparation: The first step in the process is the preparation of the transformer core. This involves the cutting and stacking of magnetic laminations to form the core. The core is then clamped together to maintain its shape.

Coil winding: After the core preparation, the next step is the winding of the transformer coils. The windings are usually made of copper wire and are wound around the core. The number of turns and the thickness of the wire used for the windings depend on the desired output voltage and current.

Impregnation: Once the coils are wound, they are impregnated with epoxy resin. This is done to ensure that the windings are properly insulated and protected from moisture and other contaminants.

Assembly: After the impregnation process, the core and coils are assembled. The coils are arranged in their proper position around the core, and the transformer is clamped together to maintain its shape.

Vacuum casting: The next step is the vacuum casting process. The transformer is placed in a vacuum chamber, and the epoxy resin is poured into the chamber. The vacuum helps to remove any air bubbles that may be present in the resin, ensuring a uniform and high-quality casting.

Curing: Once the epoxy resin has been poured into the chamber, the transformer is cured in an oven at a specific temperature and for a specific duration. This ensures that the epoxy resin hardens and provides a durable and strong insulation for the transformer.

Testing: After the curing process, the transformer undergoes various tests to ensure that it meets the required specifications. These tests include electrical testing, insulation resistance testing, and partial discharge testing.

In conclusion, the manufacturing process of vacuum epoxy resin cast transformers is a critical and intricate process that requires precision and attention to every detail. The process ensures that the transformers are of high quality and meet the required specifications for use in various electrical power systems.

LuShan, est. 1975,  is a Chinese professional manufacturer specializing in power transformers and reactors for 48 years. Leading products are single-phase transformer, three-phase transformers, DC inductors, AC reactors, filtering reactor, expoxy resin high-voltage transformer and intermediate, high-frequency products. Our transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering, central air conditioning.

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