Equipment for Oil/Paper Drying and Insulation

HEDRICH offers a variety of drying technologies for different applications. Only carefully dried insulation materials ensure a trouble-free operation of electric high-performance components and slow down the aging process. For the materials used to insulate transformers it is extremely important to minimize moisture to guarantee dielectric strength and dimensional stability.

Vacuum Hot Air Drying Equipment

The mature technology of our vacuum hot-air drying equipment provides excellent drying results. Benefit from a considerably reduced drying time!

Vacuum Nitrogen Drying equipment: Higher Temperatures = Shorter Drying Times

Our vacuum nitrogen drying equipment hit the mark by higher drying temperatures, reduced drying times and only minor depolymerization of the insulating paper.

Low-Frequency Drying Equipment

Low-frequency drying equipment are fitting well for the fully automatic production of transformers. Simultaneous heat and vacuum drying ensure short process times.

The New Generation of Vapour Phase Equipment

Vapour phase drying systems are used for the production of power transformers and other high-voltage components. The technology requires – compared with drying processes using air – about just 25-40% of the time.

Vacuum Drying and Impregnating Equipment

We deliver vacuum drying and impregnating equipment and oil purification equipment that are individually adapted to the requirements of oil/paper-insulated electric components.

Vacuum Oil Purification Equipment

Whether in stationary or mobile design, vacuum oil purification systems of HEDRICH are characterized by a large vacuum degassing stage and an efficient pumping speed of the pumping unit.

Vacuum Cable Impregnation Equipment

Specialized in the impregnation of signal and HV/HVDC energy cables, HEDRICH’s vacuum cable impregnation systems ensure absolute process reliability. And this is for more than 45 years.

Isostatic Presses
Using isostatic presses during the drying of transformer windings ensures that shrinkage of the insulation is compensated, resulting in a reduction of the plastic deformation.

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