March 8, according to Baoding Tianwei change [-6.42% funds reported] Electric Co., Ltd. disclosed that the company for the United States Tri-state power transmission joint company independently developed TX-300MVA / 230kV phase-shifting transformer through all Test project assessment, the indicators are to meet the contract requirements, reached the international advanced level, marking China's largest no-load phase shift, the largest structure capacity of the phase-shifted transformer was born, to fill the gaps. It is understood that only a few well-known enterprises in the world can manufacture UHV high-capacity large-capacity phase-shifting transformers. Tianwei Baoshangen is the only enterprise in China possessing large-scale phase-shifting transformer design technology and supply experience, and has successively been one of the leading manufacturers in the United States, Canada, Ghana and many other companies independently developed a large number of large-phase transformers.