ArcelorMittal Technotron s.r.o.
Cores of magnetic circuits – transformer cores
2008
4/13/2020 Confidential 0

ArcelorMittal Technotron s.r.o.
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ArcelorMittal Technotron s.r.o.
• Transmission transforme rs.
• Instrument transformer s.
• Measurement transfor mers.
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Voltage transformers.
• Current transformers.
• Supply transformers.
• Power transformers.
• Low loss applicatio ns.
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Inductors.
• Converter.
• Suppression technol ogy
• Regulating transfor mers.
• Pulse transformers.
• Special transforme rs.
• Rectangular curre nt transformers.
• Transformers up to approximately 10 M VA.
• Single-phase an d tree phase distribution transformers.
• Single-phase a nd three phase chokes.

ArcelorMittal Technotron s.r.o.
• Benefits:
• Closed flux path
• Low magnetic leakage
• Low noisiness of transformers
• Compact dimensions
• Low weight of transformers
• Type of Toroidal Cores:
• With chamfered edges
• With air gap
• Special shapes
• With protective coating

ArcelorMittal Technotron s.r.o.
• Benefits:
• Electrical energy savings
• Low humming
• Saving in quantity of used copper for winding
• Saving in work costs exert for transformers assembly
Cut surfaces of there cores can be round, oval and rectangular
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ArcelorMittal Technotron s.r.o.
• Cut C cores single-phase • Cut C cores three-phase
• According the DIN 41309 norm – SG, SU, SE,
SM
• According to he IEC 329 norm – Q, R, M, U
• According to the ArcelorMittal Technotron internal norm - C
• According to the DIN 41309 norm – S3U
• According to the IEC 329 norm – 3U

ArcelorMittal Technotron s.r.o.
• Benefits:
• Electrical energy saving.
• Saving in quantity of used copp er for winding.
• Saving in work costs exert for transformers assembly.
• Low humming.
• Better use of coils scope.
• Easier windin g of wire on a circular coil.

ArcelorMittal Technotron s.r.o.
• UNICOR E advanced technology leads to low specific losses
• Benefits of Unicore:
• Low spe cific losses
• Easy as sembly
• Favora ble price
• Saving in quantity of used copper
• The ba nding of cores is not necessary
• Short delivery time
• Uncut Unicore
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Due to advantages of the ir construction Uncut Unico re are apt to replace almost all con ventional uncut C cores and recta ngular toroidal cores. Corner a ngle can be
45 of 90 degrees.
• Application possibilities :
• Rectangular current tr ansformers.
• Voltage transformers.

ArcelorMittal Technotron s.r.o.

ArcelorMittal Technotron s.r.o.
• Application possibilities:
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Single-phase transformers.
• Three-phase transformers.
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Power transformers.
• Current transformers.
•
Measuring transformers.
• Instrument transformers.
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Transmission transformers
•
Regulating transformers.
• Types of construction

ArcelorMittal Technotron s.r.o.
Is a core suitable for chokes; its front surface is superposed thus enabling conventional C core replacement.
Application: single-phase chokes three-phase

ArcelorMittal Technotron s.r.o.
• The air gap is designed as steps. Step butt Unicores can be annealed to reduce loss and make assembly easier.
• Benefits:
• Lower core losses than comparable C cores.
• Higher transformer output.
• Lower transformer weight.

ArcelorMittal Technotron s.r.o.
Belongs to the group of STEP
BUTT Unicore. The gaps are on the opposite sides of the core. So the gap is on every other packet in the one leg. Thanks to this we can achieve reduction of losses and noise.

ArcelorMittal Technotron s.r.o.
• DGAP core
• Application:
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Low loss applications
• Transformers up to approximately 10
MVA
• Benefits:
• The lowest core losses
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Higher transformer output
• Lower transformer weight
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Saving in quantity of used copper

ArcelorMittal Technotron s.r.o.
• All above mentioned types of
UNICORE we are capable to manufacture in cruicy form.
• This means you can get all advantages of UNICORE even if your transformers are made of cruicy form C-cores.

ArcelorMittal Technotron s.r.o.
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ArcelorMittal Technotron s.r.o.
ArcelorMittal Technotron s.r.o.
Křižíkova 1377
Frýdek-Místek
738 01
Czech republic www.technotron.cz
zvj@technotron.cz
Tel/Fax: +420 558 621 547
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