Low frequency heating transformer vacuum drying plant CMM-6

Low Frequency Heating Transformer Vacuum Drying Oven CMM-6 is designed for drying the solid insulation of power transformers.

A common practice during the production or repair of power transformers is to remove moisture from paper insulation. The dried insulation has dielectric strength 20 times greater than not dried one, as moisture affects its dielectric breakdown.

Depending on the types of transformers there are several ways to remove moisture from the active part. One of them is drying with a vacuum furnace (vacuum oven).

Drying of power transformers with vacuum furnaces has the following advantages:

• more intensive evaporation of moisture in comparison with drying with warm air or natural drying;
• optimal overall performance and reduced processing time.

GlobeCore offers a transformer vacuum furnace with modifications, adapted to meet specific needs of the customer. The design, accounts for productivity, dimensions, and placement location, loading method, degree of automation, etc.

1 – Autoclave; 2 – Trolley; 3 – Door with lock mechanism; 4 – Oil filling unit; 5 – Vacuum pump group with condenser; 6 – Control panel; 7 – Trolley support; 8 – Chiller

Drying of transformer insulation with a vacuum oven CMM-6 is characterized by automated checkout and recording of important operating parameters: heating temperature, operating vacuum in the chamber, changes in moisture content of insulation, and condensate in the chamber. It is also possible to automatically record the listed parameters on the in the memory of the controller, to form a file with report and protocol.