The ODFPS-250000KVA/515kV power transformer made by Tianwei Hefei Transformer works (hereinafter refer as Tianwei Hebian) for State Grid Company has past all the tests at one time successfully after completion of the fabrication of the three 500kV generator transformers (9S01,9S02 and 9S03) by Tianwei Hebian.

      This transformer is the first, largest capacity and highest voltage single phase auto transformer Tianwei Hebian fabricated so far, as well as the first 500kV transformer Tianwei Hebian fabricated for State Grid Company. The one-time success on the test fully represents Tianwei Hebian has mastered the fabrication technology of various 500kV power transformers and ability to fabricate and test the ultra high voltage, large capacity transformers. To enhance the core competitives on the fabrication of large capacity and higher voltage transformer, and Tianwei Hebian pioneers the fabrication of the 500kV large capacity auto transformer in Anhui Province.