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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