Siemens develops eco-friendly mobile substation

Jan 1, 2019
Posted by Patrick Haddad

Siemens has developed a mobile substation using natural ester oil at its plant in Wuhan, China.

The new mobile substation has been developed as part of Siemens’ grid resilience concept, Pretact® and is currently only available for the Chinese market.

The newly developed mobile substation combines the resilience-focus of the Pretact® concept with the latest innovation of digitally connected transformers – a 40 MVA / 110 kV Sensformer® filled with natural ester oil. It also includes a 126 kV highly integrated switchgear, a 126 kV surge arrester and a 12 kV gas-insulated switchgear (GIS).

The ester oil is biodegradable, and therefore environmentally friendly, and has a flash and fire point twice that of mineral oil. This overcomes the issue of the lack of fireproof systems. The substation is pre-fabricated, pre-commissioned and has a compact design meaning that it can be transported and installed extremely quickly with little on-site work needed.


Source: Siemens

Photo (for illustrative purposes): Siemens mobile substation/ Siemens Press / Siemens


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