A device that transforms electrical energy is mandatory and is present immediately before entering the network of its consumer. Power transformers of the oil principle of the device have been very actively used for more than half a century, but today they are increasingly being replaced by more advanced, so-called "Dry" analogues, the production of which has been successfully mastered at the enterprise " Eltiz ". The main advantages of this type of transformer include:
- Completely fire and environmentally friendly design and interior.
- No need for regular maintenance (checking and replacing transformer oil).
- The compactness (small size) of the devices allows their installation in a small, not necessarily separate room.
- Possibility to increase productivity by 50% due to installation of forced air cooling.
Despite the higher cost in comparison with oil-immersed transformers (by about 30-40%), devices of the dry principle of production quickly pay for themselves and do not require capital investments during operation.
Vacuum production method
The main component of the technology for the production of dry transformers is the use of vacuum equipment in the process of pouring its finished (working) winding:
- Epoxy compound.
- Quartz filler.
This allows you to guaranteed to exclude the formation of gas (air) microscopic cavities that affect the dielectric properties. Getting into them, electrical discharges quickly destroy the insulating layer. At the same time, the winding made according to this method is completely immune to moisture and temperature changes in the environment, which makes it possible to manufacture transformers for individual orders for operation in extreme industrial conditions.
You can get more complete information about the types and technical characteristics of dry-type transformers using the website of the company that manufactures them using its own high-tech equipment.
