Vattenfall Europe Generation AG reconditioned the pumped storage turbine unit (Turbine A), which went into operation in 1939. The Wisenta Hydropower Plant in the Free State of Thuringia consists of two 1.2 MW pumped storage units and two 0.6 MW run-of-river turbines. Turbine A underwent a comprehensive overhaul in 2014. In addition to the main mechanical components, the complete electrical and I&C equipment was upgraded to meet the state of the art.

As part of this project, Dornier Power and Heat was commissioned to provide engineering services for the following lots: I&C system and turbine controller, low-voltage switchgear, 20kV power evacuation, turbine distribution system, and dismantling.

Services of Dornier Power and Heat at a glance

• Preparatory engineering services for the upgrading of the electrical and I&C systems and the turbine controllers including the hydraulic equipment units
• Planning of the dismantling work, incl. tender preparation, award of contract, and construction supervision
• Preparation of tender documents for electrical and I&C works
• Support during bid evaluation and the subsequent contract awarding process
• Construction supervision and field inspection for the electrical and I&C components
• Management and support of commissioning, assistance in verification testing