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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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    Latest is a lightning strike caused the blackout by tripping a 400kv line. Now, I did hear through the grapevine that the under frequency protection operated and shed the load automatically and in my view correctly as the cascade tripping was avoided. 

    Natgrid is not responsible for the fiasco on the railways as they restored the grid power fairly rapidly.   The railways should be asked to explain why their emergency generation and backup procedures failed so miserably and make sure it does not happen again by re-educating drivers and installing backup generation.
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  • 0
    Latest is a lightning strike caused the blackout by tripping a 400kv line. Now, I did hear through the grapevine that the under frequency protection operated and shed the load automatically and in my view correctly as the cascade tripping was avoided. 

    Natgrid is not responsible for the fiasco on the railways as they restored the grid power fairly rapidly.   The railways should be asked to explain why their emergency generation and backup procedures failed so miserably and make sure it does not happen again by re-educating drivers and installing backup generation.
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