Domestic thyristor DC power supply

The thyristor rectifier power supply for electrolytic machining in China has complete specifications, and its performance can basically meet the requirements of use. The main problem of thyristor DC power supply is that the transformer volume is large (not used for water cooling), and the main circuit is still many parallel branches, so the area is large. It does not constitute the whole sealed cabinet, so the corrosion resistance is poor, the service life is short, and the obstacle rate caused by rust is still high. After some factories adopt the measure of power separate isolation room, the situation has improved, but the plant area is increased, the bus line is long, the voltage drop is large, and the energy consumption is large. At present, although it has absorbed the advanced technology of Anocut company in the United States to develop 3000 A, 10000 A water-cooled sealed thyristor DC power supply, but the stability and reliability of the latter have not been fully solved, and need to be further improved.