Project reference · Control-system retrofit

Hydropower Plant Oberlenningen

Cost-effective modernization of an existing control cabinet for reliable operation in direct marketing.

Head18 m
Flow rate2,500 l/s
Output260 kW
Turbines2 × Francis spiral
GeneratorsSynchronous
Control systems, excitation and level control

Modernization with minimal intervention

At 18 m head and a flow rate of 2,500 l/s, Hydropower Plant Oberlenningen delivers 260 kW. Two Feud Francis spiral turbines operate with synchronous generators.

The existing control system, supplied by a vendor no longer active in the market, was prone to failure. Rather than replacing the entire cabinet, LTA Hydro retained its sound existing structure: the obsolete control system was decommissioned and replaced with LTA Hydro’s own solution with minimal modification.

The retrofit includes excitation technology, water-level and automatic level control, together with the required operating and protection functions. The plant is now easy to operate, maintain and run safely.

Today, the plant operates reliably in direct marketing. Automatic level control stabilizes operation, and the previous control-system issues no longer occur.

  • Control retrofit: Existing control cabinet retained and integrated with LTA Hydro control technology.
  • Excitation: Excitation technology integrated for the synchronous generators.
  • Control: Water-level and automatic level control for regulated operation.
  • Marketing: Reliable operation in direct marketing.

← Back to all projects