Power Transformers Drying Methods. Vacuum Cold Trap UVV

More details - globecore.com. Oil refrigeration cold trap system UVV is designed for evacuation and power transformers drying with voltages 110-1150 kV during installation, service and repairs.
The vacuum cold trap can be used with transformers capable of withstanding 26 Pa pressure. Application of the unit for transformers which cannot withstand 26 Pa pressure is possible after reinforcement of the tank authorized by the transformer manufacturer.
While drying solid insulation of power transformers with voltages from 500 to 1150 kV, the evacuation from atmospheric pressure to 400 Pa may be accelerated by connecting a vacuum blower section to the unit.
Oil refrigeration system can dehydrate solid insulation by circulating hot dry oil. First, the oil is heated to 80-85 ⁰C, and then it passes through a drying and filtration unit. The essence of this method is the diffusion5 of moisture from the outer layers of insulation into the dry oil with the following removal of the moisture by the drying unit.
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#powertransformer #transformer #transformerdrying

[@Globecore]

Can you think of other vacuum cold freeze drying applications? Let us know in the comments. For more information - [e-mail].

[@vasiliososnovyi8651]

The technology of vacuum freezing of water vapor is interesting. Thanks for information.

[@Globecore]

We also thank you for taking the time to watch the video and comment on it.

[@portonani8723]

Thanks for the video! Here I found what I needed when writing my dissertation.

[@Globecore]

We are glad that we could be of help to you.

[@grigoryremyga8117]

I would like to know more about drying transformer windings in vacuum ovens.

[@Globecore]

To get started, you can watch this video - ua-cam.com/video/wUDHJD5c8Os/v-deo.html.

[@johnsour2759]

I noticed in the video the unit of the drying insulation with low-frequency currents. Do you supply such equipment?

[@Globecore]

Yes. We have a new video about this equipment - ua-cam.com/video/8yo465y6CRw/v-deo.html.

[@mahboobahmad5683]

How can I learn more about the technology of removing water from transformer windings using vacuum freezing?

[@Globecore]

Email us at [e-mail] and we will send you more information.

[@Pasha01234567]

Is it possible to use this unit for drying the insulation of transformers whose tanks cannot withstand a pressure of 26 Pa?

[@Globecore]

It is possible, but only on the condition that the transformer tank is previously reinforced.