On October 28, Liaoning Huaye Group Development Co., Ltd. held a project achievement acceptance appraisal meeting. Under the witness of military representatives, the first set of 75MVA variable-frequency phase-shifting rectifier transformer with the largest capacity in the world which was independently developed by Liaoning Huaye Group Development Co., Ltd. passed the online joint commissioning at one time, officially passed the expert acceptance, and will be delivered to the user for use.

This time, the large-capacity 75MVA variable-frequency phase-shifting rectifier transformer independently developed by Liaoning Huaye Group is the main equipment of the power system of a key national military project, and it is the largest capacity single-machine variable-frequency transformer product with the most complex structure in the world. During the test on that day, the user's military representative and the top scientific and technical professionals from the same industry in the country carried out the online joint commissioning test on the equipment, and all indicators met the design standards, and finally the equipment was successfully delivered for application and mass production.

It is reported that Liaoning Huaye Group is the industry standard setter of variable frequency phase-shifting rectifier transformer, and the enterprise has been committed to independent research and development of variable frequency power supply for a long time. From the initial research and development of 20MVA variable frequency phase-shifting rectifier transformer to the successful delivery of the first 75MVA variable frequency phase-shifting rectifier transformer (set) in the world, after years of arduous scientific and technological research, the industry breakthrough has been achieved again, which has an exemplary role in the transformation and upgrading of "time-honored brands" in Anshan.