A welding arc powered by a constant-voltage source, using a consumable electrode and a constant-speed wire feed, is essentially ... The means of reducing power system voltage in Figure 1.1 may be a transformer or an electric generator or alternator driven by an electric motor. ... Some types of power sources use a combination of these arrangements, with the taps adjusting the open circuit (or no-load)anbsp;...
|Title||:||Welding Handbook: Welding processes|
|Author||:||Leonard P. Connor, R. L. O'Brien, American Welding Society|
|Publisher||:||Amer Welding Society - 1991-05-01|