Siemens builds most powerful mobile substations for SA power grid

Germany: Siemens has been awarded an order to supply two mobile substations to National Grid SA, the transmission operator of Saudi Electricity Company.

With a voltage of 380 kV and a power capacity of up to 502 MVA each, the two substations are the most powerful ever built on a single feeder configuration, according to the manufacturer.

One substation contains three single-phase autotransformers with a capacity of 167.3 MVA each, which makes them the largest transformers for mobile substations ever built by the manufacturer.

The manufacturer has combined existing mobile substation modules to design and manufacture these mobile substations, able to fit and suit in any network area of the kingdom. 

Source: Siemens