Vacuum impregnation machine manufacturers explain the process of transformer dipping and drying

Vacuum impregnation machine manufacturers explain the process of transformer dipping and drying

Our company is specialized in the production of vacuum impregnation machine, vacuum impregnation machine, automatic double cylinder vacuum impregnation machine, automatic double cylinder vacuum impregnation machine ，vacuum impregnation machine  and semi-automatic vacuum impregnation machine. The automatic vacuum impregnation machine is controlled by PLC controller. Today, we will explain the whole process and function of the switch transformer dipping paint drying and insulation operation mode.

 

Giant Branch automatic vacuum impregnation machine physical map introduction:

Automatic single cylinder vacuum impregnation machine

Automatic double cylinder vacuum impregnation machine

   The transformers of the switch transformers are dry and insulated and tested. The transformers must be dipped in varnish to dry the insulation, so that the gaps are filled with insulating varnish and the various materials are stained. This makes the magnetic core and the magnetic core, the magnetic core and the skeleton, the enameled wire and the insulating material are firmly glued together, and is more resistant to mechanical vibration and shock, and more resistant to corrosion and moisture. The transformer dipping process is mainly divided into pre-baking, dipping and drying. The purpose of prebaking is to remove the moisture of the air gap of the transformer itself. Commonly used methods of dipping paint are: atmospheric pressure hot dip method and vacuum pressure dipping paint method. The latter has the advantage of high quality and impregnation of the immersion paint, which can minimize the moisture absorption capacity of the transformer coil.

Dipping paint drying insulation of switching transformer
   The assembled and tested transformers must also be immersed in paint to dry the insulation, so that the gap is filled with insulating varnish, so that various materials are stained. This makes the magnetic core and the magnetic core, the magnetic core and the skeleton, the enameled wire and the insulating material are firmly glued together, and is more resistant to mechanical vibration and shock, and more resistant to corrosion and moisture. The transformer dipping process is mainly divided into pre-baking, dipping and drying. The purpose of prebaking is to remove the moisture of the air gap of the transformer itself.
Commonly used methods of dipping paint are: atmospheric pressure hot dip method and vacuum pressure dipping paint method. The advantage of the latter is that the quality of the impregnating paint is high and soaked, which can minimize the moisture absorption capacity of the transformer coil, but the dripping time after dipping is longer.
The drying process after dipping is compared in two stages. The temperature in the first stage is slightly lower than about 70% to 80%, so as to ensure the solvent volatilization in the paint is suitable, 1~3 hours, the temperature in the second stage should be increased. The specific temperature should be close to the heat resistance grade of the transformer and insulating varnish. Class A: 105 benefits, Class E: 120 benefits, Class B: 130 benefits, Class F: 155 benefits, Class C > 180 benefits. The baking time is 5~8 hours, and it will be dried immediately.