ZD5-2000 multi-function Gouging Machine is a multi-function power source which have multiple characteristics, except carbon arc gouging, it also used as the power source of electroslag welding, automatic submerged welding and band strip welding. The main circuit of ZD5-2000 adapts thyristor rectified circuit which have paralleling reactor, this circuit has good over-load ability, high adjusting accuracy, good dynamic characteristic and high reliability. ZD5-2000 has auto compensation function of voltage fluctuating, which guarantees stable welding current.