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The Western HVDC Link

Alan Capon
I did originally answer the previous thread, but have since deleted my response and I believe a new thread with a proper and correct title is the correct way of answering. 


More info on the fault here: https://www.energy-reporters.com/transmission/italys-prysmian-under-fire-over-uk-interconnector-failure/ 


Reports suggest an undersea cable fault in the vicinity of Liverpool Bay. 


Regards,


Alan.
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    As far as I know, TDR is still the preferred method, although with a precision pulse generator and a precision oscilloscope rather than an “all in one” unit with just a “go” button. The idea is that you take (and save) the profile of the good cable, then after the fault, the “new” trace can be compared to a previously taken good trace. In theory at least, the fault should show up as a difference between the two images.


    Other methods include continuous temperature measurement using an integral fibre optic core, and Marine AIS systems that allow you to set alarms based on the proximity of ships to the cable. 


    Regards,


    Alan.
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  • 0
    As far as I know, TDR is still the preferred method, although with a precision pulse generator and a precision oscilloscope rather than an “all in one” unit with just a “go” button. The idea is that you take (and save) the profile of the good cable, then after the fault, the “new” trace can be compared to a previously taken good trace. In theory at least, the fault should show up as a difference between the two images.


    Other methods include continuous temperature measurement using an integral fibre optic core, and Marine AIS systems that allow you to set alarms based on the proximity of ships to the cable. 


    Regards,


    Alan.
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