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WELDING TRANSFORMERS
& MAGNETIC CORES
Index
COMPANY
QUALITY POLICY
PRODUCTS
Welding Transformers
AC Welding Transformers for
Guns
DC Welding Transformers for
Guns
Amorphous and Nanocrystallines
Cores
Magnetic Wound Cores FeSi
Welding Transformers & Magnetic Cores
Welding Transformers manufacturing
Magnetic Cores manufacturing
Welding applications and special Cu
& Al coils
• More than 2.000 transformers per year.
• 16 employers.
• 800m2
• 2,5 M€.
• Close to 1.000 Tn of magnetic steel per year.
• 19 employers.
• 900m2
• 2,5 M€.
• Cu-Al coils for Inductances.
• 100 K€.
Location
Magnetic Wound Cores FeSi. Characteristics
• Raw Material: NOSS & GOSS magnetic steel.
• Composition: Fe (97%) Si (3%).
• Quality: M235, M3, M4, M5 and M0H (HiB).
• Range of widths: From 10 mm to 300 mm.
• Thickness: From0,10 mm to 0,35 mm.
DUO CORE BUTT CORE STEPBUTT DDG
Magnetic Wound Cores FeSi. Applications
LIGHTING
VARIACS
MEASUREMENT EQUIPMENTS
POWER SUPPLY
VOLTMETERS, AMPERMETERS
CHOKES
TELECOMUNICATION EQUIPMENTS
PROTECTION EQUIPMENTS (earth protection)
Amorphous and Nanocrystallines Cores. Characteristics
• Energy save.
• Smaller size of Transformer.
• Lower electromagnetic noise.
• Good performance at high frequency.
• Control above hysteresis curve applying different magnetic fields.
Base alloys: FeSi, FeB, FeNb, Cu
Desired alloy
Amorphous toroid
Nanocrystallinetoroid
Mixing Furnace
Processing: winding,
insulation, welding
Mechanical protection:
case, epoxy resin…
Amorphous stripRapid Solidification
Machine
LQIeIE RAW MATERIAL
PROCESSING
Thermo-magnetic Treatment
Nanocrystalline core manufacturing process
Amorphous and Nanocrystallines Cores. Applications
CHOKES
INVERTERS
UPS
FILTERS EMI/EMC
HIGH CURRENT EQUIPMENTS
MEASURING INSTRUMENTS
PROTECTION SYSTEMS
Welding Transformers
• Resistance Welding Transformers for Spot, Butt, Protuberances and Seam Welding (50/60 Hz)
Resistance welding transformers
Manual Guns50/60 1Khz
Robot Guns50/60 1Khz
AC Welding transformers for Guns
FOR ROBOT GUNS
H (4KA) (NORM ISO 10656)
J (5,4KA) / Z&X (6,2KA) (NORM ISO 10656)
f = 50/60Hz
• We design special transformers for manual guns according to the customer’s specifications.
FOR MANUAL GUNS
DC Welding Transformers for Guns
FOR ROBOT GUNS
MFHE, External Rectifier
MFJE, External Rectifier
MFJI, Internal Rectifier
• We design special transformers for manual guns according to the customer’s specifications.
FOR MANUAL GUNS
f = 1Khz
DC Welding Transformers for machines
• Powerfull, more mechanical robustness, compact size.• It allows modular connection for increassing the range of powers.• Applications: Welding DC machines for spot, Protuberances, Butt and
Seam welding.
f= 1 Khz
• Typical KA values in standard DC welding machines applications
TP MF/ HE TP MF/ JE
Quality Policy
• The quality policy in ELESA TRANSFORMADORES is to supply goods and give service of the highest quality fulfilling all the norms required in its manufacturing, rules and needs of the customers.
• Quality of ELESA has been guaranteed for more than 25 years for main manufacturers of gun and welding machines as well as for measurement equipments manufacturers who are the suppliers to the Energy companies.
Quality Policy
• Magnetic cores are homologated by our customers before having checked their magnetic specifications in ELESA thanks to our testing equipment of high performance.
• The welding Transformers, besides being homologated by our customers once they have been tested in their machines or guns, on request can be tested in SLV institute in DUISBURG.
• We are homologated according to ISO 9001 Norm.
www.elesa-trafocore.com
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