This project is to update 8 sets of rectifier equipment with rated output current and voltage of 24KA-350V.From November 6, 2019, when the first device was disassembled and installed, to November 20, 2019, when the last device was started, it only took 14 days for all eight sets of equipment to be put into operation smoothly. After the equipment is put into operation, the technical parameters are excellent and highly praised by customers.