Alan Sherriff 132 kV No.1 Busbar Trip on the 21 November 2009
On the 21st November 2009 at 12:50 hrs (AEST), the No.1 132kV busbar at Alan Sherriff 132 kV (T150) substation in northern Queensland tripped due to operation of one of its protection systems. This caused a load interruption of 9 MW for approximately 54 seconds until the 11 kV bus section breaker was closed to restore the load. There was no loss of generation as a result of this incident.
This report has been prepared under clause 4.8.15 of the Rules to assess the adequacy of the provision and response of facilities and services and the appropriateness of actions taken to restore or maintain power system security.
This report is largely based upon information provided by Powerlink.
All references to time in this report refer to Market time (Australian Eastern Standard Time).
For further information on this, please contact: Diyoni Hoole, Electricity System Operations Planning and Performance.
Power System Incident Report : Alan Sherriff 132 kV No.1 Busbar Trip on the 21 November 2009 |
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