AC welding is characterized by excessive heat generation, especially in transformers with multiple phase inputs. So, it is recommended by experts to decrease the recovery time to a significant extent to ensure efficient results.
To do so, selecting a tap that can maintain an optimum voltage level while welding is important. Mostly, the lowest tap is used at a higher current value to increase the voltage in a short time. However, taps are not solely responsible for increasing the voltage.
Instead, these items also help maintain the voltage under permissible levels and prevent it from rising to dangerous levels. It is advised to keep the tap at the optimal setting, as mentioned above, to ensure better performance in the long term.