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#217740 - 11/05/16 05:17 PM 2006 Auckland Blackout  
Mbrooke  Offline
New Member
Joined: Nov 2016
Posts: 4
USA
Does anyone know what happened? Supposedly a lightning guard wire came down, but how did it manage to cause a wide spread blackout in the process?


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#217741 - 11/05/16 05:52 PM Re: 2006 Auckland Blackout [Re: Mbrooke]  
Mbrooke  Offline
New Member
Joined: Nov 2016
Posts: 4
USA
Update, I just came across this:


http://img.scoop.co.nz/media/pdfs/0606/skmreport.pdf

Looks like two earth wires came down and took out 4 110kv bus bars.


#217742 - 11/06/16 03:34 PM Re: 2006 Auckland Blackout [Re: Mbrooke]  
annemarie1  Offline
Member
Joined: Mar 2015
Posts: 53
england
Just seems like an unfortunate accident don't see that much could be done to prevent it rust is just an unfortunate thing that happens


#217743 - 11/07/16 07:03 PM Re: 2006 Auckland Blackout [Re: Mbrooke]  
Mbrooke  Offline
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Joined: Nov 2016
Posts: 4
USA
Well maintenance would have helped, but having 220kv cross over 110kv bus bar is not a good idea for this very reason. Also the single breaker double buss topology because one bus is in such close proximity to the other during any contingency, good chance both will go at the same time.

Reading further I heard they added a new GIS next to the station so anything happening to the open air portion would have less effect.

Last edited by Mbrooke; 11/07/16 07:04 PM.


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