Trip of 8811 Calvale - Tarong 275kV line, Tarong Unit 2 and Columboola 132kV CB 73562 on 5 November 2009
At approximately 17:49hrs on Thursday 5th of November 2009, severe thunderstorms were experienced in the vicinity of Calvale – Tarong 275kV lines and one of the Calvale – Tarong lines (8811 line) experienced a single phase trip and auto-reclose. The No.2 generating unit at Tarong Power Station (TPS) tripped from 350MW at around the same time.
At approximately 17:50hrs, one of the 132kV feeders from T194 Columboola substation (Ergon Energy) to Condamine power station also tripped but there was no generation at Condamine power station at the time.
This report has been prepared under clause 4.8.15 of the National Electricity 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.
Information for this report has been provided by Tarong Energy, QGC Sales Pty. Ltd, Powerlink and Ergon Energy.Additional information has been obtained from AEMO’s Energy Management System.
For further information on this, please contact: Kin Onn Wong, Electricity System Operations Planning and Performance.
Power System Incident Report : Trip of 8811 Calvale - Tarong 275kV line, Tarong Unit 2 and Columboola 132kV CB 73562 on 5 November 2009 |
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