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EDS HV tests Cable Sentry at Gwynt y Môr

By: Tom Russell 23/03/2018 EDS HV

General Windfarms

High voltage engineering specialist EDS HV Group (EDS) has completed trials at the Gwynt y Môr offshore wind farm as part of its EU Funded Horizon 2020 project. EDS was awarded a grant in excess of €1.3m from Horizon 2020 - Europe’s largest research and innovation programme to support the roll-out of Cable Sentry, a solution based on Distributed Acoustic Sensing (DAS) technology that detects subsea cable faults in real time.

EDS stated that the funding is allowing it to carry out large-scale customer trials that will help it to demonstrate technical advantages over the current deployed technology and ensure that all technical and commercial targets are hit prior to market entry.

The DAS technology permanently monitors export circuits remotely and is designed to allow for a quicker response to any cable failure by ensuring that engineers can accurately pin-point where the fault lies. Knowing where the fault is located immediately saves time and therefore can help minimise consequential loss, explained EHS.

John Sinclair, Development Director – Power Transmission & Distribution, at Balfour Beatty Investment said: “The location of subsea HV power cables means that the risk profile associated is high and can sometimes be underestimated. They are neither visible nor easily accessible in a way that other components of a wind farm are, and when things do go wrong and a cable has to be repaired reactively, it is a slow process, and a very costly one too.”

Gwynt y Môr consists of 160 turbines that generate enough energy for more than 400,000 homes across the country. It extends over an area of about 80km² and includes two offshore substations and 134km of onshore cable installations.

Gwynt y Môr consists of 160 Siemens 3.6 MW turbines and is located eight miles off Liverpool Bay. The project is owned by RWE Innogy (50%); Stadtwerke München GmbH (30%); the UK Green Investment Bank (10%) and Siemens (10%).

Commercial operation of the offshore wind farm began in June 2015 and it generates enough electricity to meet the equivalent needs for over 400,000 average UK homes.
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EDS HV tests Cable Sentry at Gwynt y Môr

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