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Resistance welding is a joining process using high welding currents. These currents cause high magnetic fields in the surrounding of welding equipment. Considering the present discussion about national adaptations of the EU directive on electromagnetic fields, in the paper questions of assessment of the exposure to magnetic fields will be discussed, particularly with regard to low frequency-fields.
Resulting from high welding currents, resistance welding is accompanied by intense magnetic fields. In the paper, the interaction between the magnetic fields of the welding circuit of a resistance welding machine and two compensation coils, which are connected in series to the primary winding of the welding transformer, is illustrated. Different field compensation arrangements are investigated by...
Resistance welding is commonly used in many branches of industry. To perform the welding process high welding currents up to about 100 kA are required which are supplied by dedicated power electronic converters in pulsed power operation. Concerning electromagnetic compatibility (EMC) aspects of such equipment the new European standard EN 50240 has to be taken into account. In the paper adapted noise...
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