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Sensonics upgrades power station with TMR machines

A Sensonics product story
Edited by the Engineeringtalk editorial team Jan 16, 2009

Sensonics has supplied Data Systems and Solutions (DSandS) TMR equipment to the RWE Npower, Littlebrook, oil-fired power station, to replace a 30-year-old Unit 2 electro-hydraulic governor.

In 2004, the Unit 1 governor was replaced with the latest DSandS TMR equipment.

The supplied system consists of a Triple Modular Redundant combined Main Turbine and Boiler Feed Pump Turbine EHG (685MW), with 16 Main Turbine and four Boiler Feed Pump valve controllers.

The supplied system consists of a Triple Modular Redundant combined Main Turbine and Boiler Feed Pump Turbine EHG (685MW), with 16 Main Turbine and four Boiler Feed Pump valve controllers.

For the Unit 2 equipment, RWE contracted Sensonics to provide the same DSandS equipment configuration.

Sensonics managed the project on a turnkey basis, in terms of manufacture, factory testing and installation, through to commissioning the entire system in conjunction with the DSandS engineers.

The system consisted of a triple modular redundant combined main turbine and boiler feed pump turbine EHG (685MW) with 16 main turbine and four boiler feed pump valve controllers.

The system provides speed and load control of the main turbo generator and feed pump turbine.

The work Sensonics carried out included: supplying and fitting 33 valve position feedback sensors (LVDTs); replacing speed probes and vacuum transmitters; supplying a complete EHG system in a three bay panel arrangement; supplying an OLVT system (online valve test facility) and control room HMI; removing old panel; and replacing cabling.

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