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Sonmez Transformer Company STS manufacturers distribution, power, special transformers and reactors. The Company was founded in 1976 and is located in Gebze which is close to Istanbul. The modern transformer production plant was set up over an area 5000 sq.m.. and is a large plant for special transformers. The plant makes use of advanced transformer/reactor manufacturing technologies based on know-how provided by ourself. The plant employs a staff of about 40 people. The plant is divided into the following department: winding, core production, assembly drying vacuum fill oil, modern test laboratory, finishing department and quality assurance department. SONMEZ TRANSFORMATOR SAN. veliC. A.S. e-mail: info® sonmeztrafo.cofn.tr - www.sonmeztrafo.com.tr

TRANSFORMER TYPES WHICH WE - Dry type F,H,C class AN or AF cooling transformers and reactors - Oil type (Inorganic or organic) A class ONAN or ONAF cooling - Water cooling H class WF or ONWF * Up to 30 kHz isolating transformer for induction heating transformer * Test transformers for Short Circuit up to 200 kA 5 sn ' Test transformers up to 500 kV 200 kVA (200 kV 1000 kVA with * Converter transformers up to 48 Pulse for induction furnaces transformers, motor drivers, rectifiers * Steel melting for EAF and LF transformers up to 25 MVA * Starting autotransformers for big MV motors up to 15...

SONMEZ TRAFO The construction of a transformer comprises two active components: the ferromagnetic core and the windings. Within the transformer industry, the core and windings together are normally referred to as the "active part". The passive part of a transformer is the cooling system, consisting of the tank and the cooling liquid (mineral )il, silicone liquid or synthetic organic esters). The core is constructed using thin sheets of cold-rolled grain-oriented magnetic silicon steel insulated on both sides. Conventional grainoriented steel (CGO steel) is used for transformers with normal...

SONMEZ TRAFO SONMEZ TRANSFORMATOR SAN. veTiC. A.S. e-mail: info® sonme2lrafo.com.tr - www.sonmeztrafo.com.tr

SON.MEZ TRAFO CONVERTER TRANSFORMERS Our compact and low-weight transformers fully comply with the customers' specifi cations. The high quality of our reliable products provides an outstanding capacity to withstand short circuits. Special type tests and quality control ensure safe operation while STS's product support and service network guarantee free and easy use of the The rectifiers used in low voltage are usually both 6- pulse or 12-pulse rectifiers, and they may be diode bridges or thyristor bridges . The 6-pulse rectifier is supplied by a two-winding transformer and the 12-pulse...

SONMEZ TRAFO CONVERTER TRANSFORMERS The magnetic circuit is core-type with mitered joints. M5 grain oriented, 0,3 mm magnetic steel is most commonly used. The windings may either be copper, aluminum or mixed. Low voltage windings are always foil windings in these transformer sizes. Foil windings are mechanically extremely strong, which is important in transformers for convertor duty. An earthed screen is installed between the primary and secondary Routine tests as per standards are conducted for each transformer unit produced. Extensive type testing programs can be performed for each design...

SON.MEZ TRAFO Electric arc furnace (EAF) transformers are required for many different furnace processes and applications. • Steel furnaces, mainly long arc • Ladle furnaces • Ferroalloy furnaces and similar with short or submerged arc STS is a global supplier of transformers for high-current industrial processes like aluminum electrolysis or arc furnaces for steel and other metals.Furnace transformers for AC EAF operation have a large area of applications. From the very demanding and cyclic AC steel furnace operation, with frequent short circuit conditions in the furnace, to the submerged...

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EARTHING TRANSFORMERS SONMEZ TRAFO Earthing Transformer are used to create a neutral point in a three phase system, which provides possibility for neutral earthing. The earthing can be through an arc-suppression reactor, a neutral earthing reactor or resistor or directly. Can be produce the following types: -With auxiliary winding on request SONMEZ TRANSFOR MATO R SAN. ve TIC A.S. e-mail: info® sonmez1rafo.com.tr - www.sonmeztrafo.com.tr

SONMEZ TRAFO EARTHING TRANSFORMERS The design can be a transformer with just one winding, which is zig-zag connected. The zero sequence impedance of such a winding is normally quite low, but it can be increased if the purpose of the is to limit the current through the transformer in case of an earth fault somewhere An alternative conncetion to zig-zag is star/delta connection where the delta connected winding will compensate the zero sequence magnetic field so it will be confined to a leakage field between the star and the delta winding and make the zero sequence impedance of the...

SONMEZ TRAFO • Current Limiting Reactors • Damping Reactors • Harmonic Filter Reactors • Neutral Grounding Reactors • Shunt Reactors • Smooting Reactors Air Core Reactors provide a linear response of impedance versus current that is essential to numerous applications. Sonmez reactors are air cooled, single or multi-layer, cylindrically wound units constructed on weather resistant tubes with all materials chosen to meet the most severe thermal and electrical shocks and cycling requirements. Reactor coil windings are normally designed using all aluminum construction with the conductors...

SONMEZ TRANSFORMATOR SAN. veliC. A.S- e-mail: info® sonmeztrafo.com.tr - www.sonmeztrafo.com.tr

SONMEZ TRAFO Sonmez Transformer designs transformers and inductors for both wagons and locomotives. Compact and light-weighted, protected from harsh environment by self developed technology, high level of reliability. Railway Electrification: We have successfully developed specialized transformers used by Turkish railways up to 25 KV class in their various - Booster transformers up to 30 KV class. - Dry type fiber glass epoxy stainless steel housed transformers for 400 V input / 400 V output. - Traction Heating systems. SONMEZ TRANSFORMATOR SAN. veTiC A.S. e-mail: info® sonmeztrafo.com.tr -...