Patent ID: 8653424

Claim:
A method to optimize a welding energy input into a heating coil of a heating coil fitting involving a welding power supply, said method comprising: receiving a corresponding welding time and an effective value of an AC welding voltage with a defined fundamental frequency, for which the heating coil fitting was originally designed; connecting the welding power supply to contact elements and connecting elements of a heating coil fitting via connecting leads and connecting elements; measuring at least one electrical parameter of the heating coil fitting wherein an inductance of the heating coil of the heating coil fitting is measured as a first electrical parameter; determining, at least from the measured first electrical parameter of the heating coil fitting, at least a first energy input correction factor being an inductance correction factor provided to take into account an influence of the heating coil inductance of the heating coil fitting on the welding energy input in case of a deviation from a tolerance range for a fundamental frequency of an established AC welding voltage for which the heating coil fitting was originally designed; and optimizing a welding energy input into the heating coil fitting using at least the first energy input correction factor to adjust one or several welding parameters, respectively.