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POWER FAILURE IN EAST ANGLIA

CliveS
What happened?   Why did the grid cascade trip and not isolate the immediate network?  Natgrid is NOT responsible for failure of British rail or hospital emergency supplies and MUST NOT fiddle the protection around trying to keep key areas/cities railways on!! 

Just shed the immediate area in this case Norfolk and Suffolk.  We do not need an expensive legal inquiry or someone to blame;  just reset the protection and shed the nearest area to the fault.  Sorry for the RANT.
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    Trains where the on board computer does not need to be re-programmed if there is a power cut of more than 5 mins would also seem to be a good idea.
    news article   I understand that the Siemens programmable controllers forget their settings. Which is so fundamental as to be almost unbelievable that no-one tested it, in a way our mains supply is too good.


    Turns a 5 min delay into many hours, and may explain while some countries with less reliable infrastructure shun the latest technology.
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    Trains where the on board computer does not need to be re-programmed if there is a power cut of more than 5 mins would also seem to be a good idea.
    news article   I understand that the Siemens programmable controllers forget their settings. Which is so fundamental as to be almost unbelievable that no-one tested it, in a way our mains supply is too good.


    Turns a 5 min delay into many hours, and may explain while some countries with less reliable infrastructure shun the latest technology.
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