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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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    Yes, hybrid diesel-electric engines give the operator much more flexibility and may in fact be cheaper to run than the all electric versions.  This would be particularly so,if the carriages need additional heating in the winter and they could avoid the addition expense of installing emergency power generators in case of grid power failures.

    Not sure what the Swiss do to cover supply failures but it would certainly be interesting to find out.
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    Yes, hybrid diesel-electric engines give the operator much more flexibility and may in fact be cheaper to run than the all electric versions.  This would be particularly so,if the carriages need additional heating in the winter and they could avoid the addition expense of installing emergency power generators in case of grid power failures.

    Not sure what the Swiss do to cover supply failures but it would certainly be interesting to find out.
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