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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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    It is 400kV line to line remember, not line to neutral (which is not distributed)  so 3 lines carrying 1kA each is  more like 3* 230kV * 1000A  is 690 MVA per kilo-amp.


    A  GVA or few is indeed the upper practical  limit, both for dissipation, and robustness against faults - more and it becomes worth a second line. It is also a similar level to the practical upper limit for a power station.



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  • 0
    It is 400kV line to line remember, not line to neutral (which is not distributed)  so 3 lines carrying 1kA each is  more like 3* 230kV * 1000A  is 690 MVA per kilo-amp.


    A  GVA or few is indeed the upper practical  limit, both for dissipation, and robustness against faults - more and it becomes worth a second line. It is also a similar level to the practical upper limit for a power station.



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