ZXG-200, 300 type DC arc welding machine circuit

ZXG-200, 300 type DC arc welding machine circuit

ZXG series rectifier DC arc welding machine adopts silicon rectifier circuit. It is divided according to the working principle of the regulating device, including silicon
rectifier coil type (for manual arc welding), magnetic amplifier type and thyristor type, etc. Among them, magnetic amplifiers used in arc welding rectifiers usually
come in three forms, namely internal feedback type, non-feedback type and external feedback type.
(1) ZXG200 and 300 DC solitary welding machine
    circuit The circuit is shown in Figure 9. It mainly consists of the power supply part (transformer Ti, etc.), internal feedback three-phase magnetic amplifier (including
self-saturation reactors L1~L6 and silicon rectifiers VDi-VD6, etc.), current regulator (ceramic plate rheostat RP2), output reactor
L , magnet resonance voltage regulator Tz and ventilator M, etc.
(2) ZXG500 DC arc welding machine circuit