ABB Provides Innovative Underground Smart Substation Solution in Downtown Beijing

by swisscham in Engineering, Manufacturing

If you pass by Caishikou in downtown Beijing, it is hard to imagine that a substation is operating under this busy commercial district. The demand for reliable electricity is increasing exponentially in urban city center hubs, and space is at a premium when it comes to supporting large electrical installations. So placing the substation underground is an ideal solution. The 220 kilovolt (kV) Caishikou smart substation project started in 2013 and went into operation recently. A museum is now under construction on the ground above the substation. ABB has supplied several key power products for the project, including sensor enabled transformers, intelligent gas-insulated switchgear (GIS) and iUnigear, a smart switchgear solution. The smart transformer also incorporates ABBÕs TEC ST (Transformer Electronic Control as an Intelligent Electronic Device) together with other smart components, and features real time monitoring, overload capability forecast, and ageing calculation. The transformer deploys water as a cooling medium on the ground making it a more environmental friendly and safer solution.

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