Why Dry Type Transformers?
- Climatic C1/C2
- Environment E2
- Fire F1 standards are met.
Product types and areas of use
- Distribution type transformers (160-3150 kVA)
- Single-phase single-phase transformers
- Power transformers (4000-15000 kVA)
- OLTC step-change transformers at load
- Rectifier rectifier type transformers
- Water and air cooled transformers (for Submarine, Marine and Oil Drilling Platforms)
- Wind power wind turbine transformers
- It minimizes the risk of combustion and explosion in environments where people live very densely such as subways, tunnels, mines, airports, shopping malls, schools, hospitals, skyscraper buildings.
- Optionally, it can be produced as internal and external type enclosure according to IP20, IP23, IP33 protection classes.
Dry Type Transformer Features
A transformer is a system that generally provides electrical energy transfer between two or more circuits by electromagnetic induction. Dry-type transformers are designed to be cooled and are transformers that remove the heat generated by air circulation. Electrical transformers whose magnetic circuit and windings are not protected in an insulating liquid and whose windings are covered with epoxy resin with glass fiber support and completely insulated against external influences. It is completely dry and absolutely oil-free.
The magnetic circuit and windings of dry transformers are not immersed in an insulating liquid, in which case they can operate in gas or under atmosphere. In general, it is a varnish impregnated transformer covered with cast resin. Dry-type transformers differ from oil-type transformers according to the cooling method. Dry-type transformers are smaller in size than oil-type transformers and provide less space and less construction work.
Advantages of Dry Type Transformers
Dry type transformer manufacturing, which requires know-how and advanced technology, has been increasing in recent years and increasing its market share day by day with customer demands compared to oil type transformers. However, in today’s technology, especially the production of large power dry-type transformers above 36kV voltage level involves technological challenges.
Apart from this, there is the absence of an environmentally harmful coolant such as oil, less risk of fire, no need for maintenance, and resistance to moisture and humidity. In addition, it is more preferred for reasons such as trouble-free commissioning at any time and fan cooling reinforcement despite being out of operation for a long time.
Dry-type transformers are the most preferred transformers today because they are generally durable, safe and environmentally friendly. All the materials required for production are offered as the most durable and quietest dry-type transformer in the sector. The dry type transformer cools with natural air and fan cooling. Several fan groups are placed in the transformer sub-area and thus, according to the temperature condition, the fan group is activated to perform cooling.
Dry Type Transformer Maintenance
Periodic maintenance is important for dry-type transformer maintenance and it must be completely de-energized before it can be healthy. For this purpose, the supply voltage is cut by opening the breakers at the transformer input and the disconnector connected after the breaker is opened must also be opened. Safety and security precautions must be taken prior to maintenance of the transformer and in particular the maintenance instruction published by TEDAF in the relevant year must be kept with it.
Dry Type Transformer Sections
It is also important to know its sections when preparing the dry type transformer connection diagram . Dry type transformer sections may vary such as low voltage input, high voltage input, secondary, primary, idle tap changer, magnetic core, magnetic core fixing part, wheel steerable cylinder assembly, earthing input, lifting holes, label plate and spare circuit box. In terms of connection groups, a transformer is a stationary electrical machine consisting of two electrically isolated coils wound on a common core.
Dry Type Transformer Prices
Since dry-type transformer prices are generally very diverse according to their dimensions and usage areas, their prices also vary completely according to these conditions. When we look at the usage areas of dry type transformers , it can be used in many places such as pumping stations, hospitals, schools, commercial buildings, dams, underground substations, railway systems, heat centers, airports, so you need to get the most accurate price information according to the area and features to be used.