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Simulation Tests of the Welding Machine Secondary Circuit

Mariusz Stępień, Zygmunt Mikno, Bogusław Grzesik

The article discusses the analysis of circuit parameters and power losses in the secondary circuit of the welding machine. The analysis was based on FEM calculations performed using the ANSYS Mechanical APDL software programme. The tests resulted in the determination of the inductance of the secondary circuit of welding machine horns as the function of the overall dimensions of the above-named circuit. The foregoing made it possible to identify the current response of the circuit to applied DC rated voltage. The determination of power losses included the identification of the distribution of potentials (voltage drops) along welding machine horns, and, subsequently, the determination of the correlation of input power, output power and system efficiency. The tests involved the identification of primary sources of power losses, i.e. mechanical connections, mainly between electrodes and horns as well as in the elastic joint.

doi: 10.17729/ebis.2017.5/3

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