About Company
The company was established on 19.10.2001, and started operation on 02.11.2001 following purchase of shares from EMIT S.A. 
The product portfolio of Fabryka Transformatorów w Żychlinie includes oil-immersed, dry and resin type transformers, as well as various reactors, also of oil and dry type.
Oil-immersed transformers.
Fabryka Transformatorów w Żychlinie have more than eighty years of experience in manufacture of transformers, including power generation and distribution transformers, with power rating from 25 to 80000 kVA, furnace transformers and choking coils for various applications, and arc-suppression reactors.
The transformer cores are made of low lossiness, cold-rolled transformer plate covered with inorganic insulation. Step-lap cross-section of the column is almost circular in shape, featuring optimum, computer-designed, number of steps for full filling of the cross-section and required flux density. Column and yoke plates (mitred strips on the ends) are carefully fagotted, ensuring good magnetic properties. The core construction enables reduction of noise and no-load losses.
The transformer winding is made of electrolytic copper. Bottom winding (low voltage) is made with thin copper foil or with a few parallel conductors of profiled cross-section in paper insulation.
The upper voltage winding are made with round cross-section wire in varnish insulation or with profiled cross-section wires in paper insulation.
The oil ducts located between the windings ensure required oil circulation and cooling. Construction and mounting of the windings guarantee very god dielectric resistance, high lightning resistance and excellent short-circuit strength. The upper voltage winding features taps for voltage control. We use various tap changers, depending on required control type: under load or dead. The tap changer is build in the transformer tank, and features manual or motorized drive located on the tank, depending on the type and size of the transformer. The heat is evacuated via the radiators or wave on the tank’s side.
The volume of oil changes with the temperature which is not constant during transformer operation, thus causing the fall or rise of oil level in the conservator, or - in case of the tight (distribution) transformers – the increase or 
decrease of the pressure in the tank. The oil volume changes are made possible by flexible walls of the tank.
The high-rating furnace transformers have oil and water cooling system implemented by means of coolers and pumps. The transformer tanks are made of plates – this is a reinforced fabricated construction, ensuring required mechanical strength.
The tank features an undercarriage, which wheels can travel longitudinally or transversally.
The transformers are connected by porcelain bushings, flat or connector (the latter are offered on request, for example from Pfisterer or Euromold) located on the lid. The transformers are equipped according to Polish and foreign standards, and the equipment can be customized.
The oil-immersed transformers from Fabryka Transformatorów w Żychlinie meet the requirements of IEC 76.1 and PN-EN 60076-1 . Their parameters are comparable with transformers made by leading foreign companies.
Dry-type resin transformers.
The resin transformers have high requirements in terms of reliability, life and environment protection. The winding of these transformers is made in the resin technology, and the transformers feature the best insulation materials from renowned suppliers.
Power range of the dry-type transformers: from 63 to 10000 kVA. Feeding voltage range: from 6300 to 36000 V. The 6300 kVA and 35/6 kV transformers are made to order – more than 20 pcs have been made so far.
The transformers are designed and engineered with the latest calculation and graphic computer software. Computerized design means that a transformer is engineered quickly, and all operational parameters and values are calculated and known beforehand. It also enables optimization and choosing the best design version.
The transformer cores (in three-column arrangement) are made of low lossiness, cold-rolled transformer plate covered with inorganic insulation. Design-wise, they are similar to the cores of oil-immersed transformers.
Bottom winding (low voltage) is made with thin copper foil or with a few parallel conductors of profiled cross-section in varnish H-class insulation. The strips are insulated with a layer of special composite, bonding adjacent coils. Such solution gives high resistance to short-circuit forces, full tightness of the winding making impossible the ingress of moisture and chemical fumes, as well as ensures high dielectric resistance.
The high voltage winding are made with round or profiled cross-section wire in varnish H-class insulation. The winding layers are insulated with glass tape saturated with semi-hardened epoxy resins (rowing). Following the winding, it becomes a monolith, with high mechanical and electrical strength. The winding has adjustment taps, enabling voltage control.
The coils, after winding and hardening, are fixed and wedged to the core columns, connected in required configurations, and finally mounted on the undercarriage or (on request) in metal housings with required protection class.
The resin transformers are environment friendly, and their insulation systems feature slow-burning and self-extinguishing materials. It is worth noting that the materials do not emit any toxic gases at high temperatures.
The resin transformers find application wherever other transformer cannot be used as a result of safety considerations and difficult operating conditions. One of the advantages of resin transformers is simple and easy installation and assembly.
The resin transformed manufactured by EV Żychlińskie Transformatory conform to IEC, EN and DIN standards.