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SENSONICS møde udfordringerne i Cruachan POWER STATION UPGRADE

SENSONICS

Turbine Instrumentation Specialists SENSONICS har for nylig afsluttet eftermontering af to statiske digitale excitationssystemer på Cruachan kraftværk i Skotland. Kontraktet af Scottish Power til enheds 3 og Unit 4 opgraderingen arbejdede Sensonics tæt sammen med Optimized Systems and Solutions (OSyS) for at replikere udstyret monteret på Unit 1 og Unit 2 under tidligere værker.

Constructed in the early 1960’s, Cruachan Power Station is one of only four pump storage facilities in the UK and due to it’s location presented a number of unique challenges to Sensonics. The power station is completely concealed within the hollowed out rock under Ben Cruachan and houses four generator / motor sets driven from an upper reservoir which are capable of generating 400MW of electricity. The station can produce electricity for the grid in less than 2 minutes when demanded and the need for high integrity turbine control systems is essential to meet these operational requirements.

The original AVR offered no hardware redundancy and with spare parts becoming obsolete, the reliability and availability was becoming of major concern. The new system has been designed to offer extremely high availability by utilising separate and diverse digital controller hardware in combination with dual thyristor bridges providing 100% full redundancy. These are all backed up by duplicate power supplies and independent protective trips. A power system stabiliser was also included in the software algorithm to ensure Grid Code compliance.

For the Unit 3 and 4 equipment, Scottish Power contracted Sensonics to provide the same Optimised Systems and Solutions equipment configuration which were fitted to Units 1 and 2 in 2002. Sensonics managed the entire project on a ‘turnkey’ basis in terms of mechanical design, manufacture, factory testing and installation, through to commissioning the entire system in conjunction with the OSyS engineers.

The successful upgrading of the AVR equipment at Cruachan Power Station is another example of Sensonics position as a leading supplier of high integrity systems for turbine supervisory, control and protection applications, even in the most demanding environments.

Russell King, administrerende direktør hos Sensonics kommenteret. 'Samarbejdet med OSyS at levere denne kritiske turbine-system til Scottish Power udnyttede OSyS teknologi og ekspertise i kombination med Sensonics nøglefærdigt projekt formåen. I tæt samarbejde med Scottish Power til at udvikle de sikre arbejdsvilkår systemer og passende procedurer til at levere dette projekt en halv mil under en skotsk bjerg var en virkelig udfordring. Tidsrammen projekt og arbejdsmiljø blev særligt krævende og eftermontering aktiviteten blev gennemført inden for den 4 ugers periode.'

For mere information kontakt Sensonics Ltd, Berkhamsted, Herts ..
Tel: + 44 (0) 1442 876833 Fax: + 44 (0) 1442 876477
E-mail: [Email protected] Web: www.sensonics.co.uk

Sensonics Ltd

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