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DCD Heavy Engineering is manufacturing four Spiral Casings for Voith Siemens Hydro Power Generation to equip Eskom's 1,368-MW Ingula pumped-storage project on the border of Free State and Kwazulu Natal.

The Ingula Project is a Hydro Electric Power Generation project, comprising an upper and a lower dam connected by underground waterways and encompassing and underground powerhouse with 4 x 333MW pump turbines.  The water flowing through the spiral casing turns a turbine which generates electricity.  The spiral casing unit has an outer diameter of almost 10m and an inlet pipe with a diameter of approximately 3m.

 Voith Siemens Hydro Power Generation's German and Japanese operating units ar joint partners in the project to desigh and manufacture the equipment.  Motor-generators were supplied by Kawasaki in Japan, with pump-turbines supplied by Voith Siemens' Heidenheim, Germany plant, and DCD Heavy Engineering, to manufacture the spiral casings.  The whole project is scheduled for completion in 2013.

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