Search Results for alternating current

Fig. 2 Selected alternating current power sources. (a) Alternating current welding transformer, adjustable core or windings. (b) Three-phase SCR-controlled dc welding power source. (c) Inverter block diagram. (d) Motor-generator set. (e) Engine-driven alternator with dc output. (f) Secondary More

Fig. 7 Single-phase, alternating current/direct current, constant current welder More

Fig. 1 Basic arc welding circuit. ac, alternating current; dc, direct current More

Fig. 14 Weld deposit rate versus current. ac-SW, alternating current-square wave; dc, direct current More

Fig. 10 Voltage and current wave forms for alternating current welding. (a) Partial and complete rectification. dc, direct current; oc, overcurrent. (b) With arc stabilization. (c) With current balancing. Source: Ref 5 More

Fig. 15 Advanced 300 A, alternating current/direct current inverter for gas tungsten arc welding More

Fig. 18 Electrode end shapes. ac, alternating current; dc, direct current More

Fig. 10 Voltage and current wave forms for alternating current welding. (a) Partial and complete rectification. dc, direct current; oc, overcurrent. (b) With arc stabilization. (c) With current balancing More

Fig. 15 Electrode end shapes. ac, alternating current; dc, direct current More

Fig. 3 Typical ac welding current waveforms. (a) Sine wave alternating current, simple transformer welder. (b) Modified sine wave obtained from magnetic amplifier-type welder. (c) Square wave, line frequency, and balanced dwell. (d) Square wave with unbalanced dwells, EP versus EN. (e More

Fig. 17 Comparison of sensitivity of alternating current, direct current, direct current with surge, and half-wave current for locating defects at various distances below a surface by means of the dry-particle continuous magnetizing method. See text for description of test conditions. More

Fig. 9 Working principle of an inductive proximity sensor. AC, alternating current. Source: Ref 14 More

Fig. 24 Skin effect, the nonuniform distribution of alternating current density within the workpiece cross section in a cylindrical conductor. Source: Ref 31 . More

Fig. 4 Conventional sinusoidal alternating current (ac) for arc welding More

Fig. 6 Typical small, single-phase, alternating current output transformer welder More

Fig. 8 Large-output, alternating current (ac), single-phase welder. dc, direct current; SCR, silicon-controlled rectifier More

Fig. 9 Alternating current (ac) square wave and sine wave output More

Fig. 11 Alternating current (ac) wave shapes with square-wave gas tungsten arc power supply. dc, direct current More

Fig. 14 Effect of alternating current (ac) waveform on weld profile. (a) Effect of altering balance. (b) Effect of altering frequency (with balanced square wave) More

Fig. 2 Schematic for a single-phase alternating current (ac) resistance welding control without feedback. CPU, central processing unit; SCR, silicon-controlled rectifier More