New Portfolio – STCL prototype 700MVA/750kV Single Phase UHVAC autotransformer successfully passed the type test
On Oct 26th, 2016, the successful type test of STCL’s new prototype – 700MVA/750kV single phase auto transformer, marked a historical moment in STCL – 750kV Ultra High Voltage stage. As the highest voltage level transformer in STCL history, the new prototype not only expanded STCL’s portfolio, but also created the record of largest capacity single phase auto transformer in Siemens globally. From the delivery of Shanghai Hongyang 500MVA/500kV underground transformer, to the successful type test of the 700MVA/750kV UHVAC prototype, STCL‘s technical competence continuously increase to strengthen company competiveness, for setting a foothold in the ultra high voltage transformer market.
The increasing consumption for electric energy in China leads to huge demand for UHVAC transmission equipment. Simultaneously, high reliability of the transformers becomes more important. Naturally we face challenges, as well as new opportunities. In this context, STCL 750kV team started the 750kV R&D project in July, 2015. Through 23 internal design reviews, 6 on-site evaluations with the experts from Transformers headquarters, 11 teleconference reviews, and 1 R&D workshop with SGCC, along with numerous discussions with departments and shop floor processes, our new portfolio member emerged together with 12 design improvements and innovations while the design finalized by July 2016.