Power System Operating Incident Reports
AEMO conducts investigations of 'unusual power system events' within the NEM. These events are known as “reviewable operating incidents” and are generally not considered as “credible contingency events”. As such, these events are not normally taken into account in the operation of the NEM.
The full scope of such events is set out in National Electricity Rules Clause 4.8.15 and the guidelines established by the Reliability Panel refer: http://www.aemc.gov.au/Market-Reviews/Completed/Determination-for-System-Operating-Incidents-Guidelines.html.
AEMO conducts these investigations to assess the adequacy of the provision and response of facilities or services, and the subsequent appropriateness of actions taken to restore or maintain power system security. AEMO then publishes a report on each incident.
As part of this process AEMO maintains statistics of these reviewable operating incidents in order to identify any trends in performance.
| Statistics of Reviewable Operating Incidents : Reporting Period - January 2007 to End June 2011 06 Dec 2011 | filename: 0232-0107.pdf |
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Please click to view the Power Sytem Operating Incident Reports for that month.
2011
December |
Date of |
Incident |
Publication Date |
27 Dec 2011 |
Trip of multiple transmission lines in Queensland on 27 December 2011 | 18 Apr 2012 |
25 Dec 2011 |
Trip Of Murraylink And Monash - Northwest Bend No.2 132 kV Line On 25 December 2011 | 18 Apr 2012 |
17 Dec 2011 |
Trip of 132kV Busbar at Waterloo on 17 December 2011 | 12 Apr 2012 |
12 Dec 2011 |
Islanding of Point Henry potlines on 12 December 2011 | 02 Apr 2012 |
01 Dec 2011 |
Trip of Chalumbin-Woree 275kV Line and Loss of Load on 1 December 2011 | 13 Apr 2012 |
November |
Date of |
Incident |
Publication Date |
30 Nov 2011 |
Trip of Multiple Transmission Lines in Tasmania on 30 November 2011 | 02 Apr 2012 |
29 Nov 2011 |
Trip of Ballarat-Bendigo 220kV Line and Waubra Wind Farm on 29 November 2011 | 15 Mar 2012 |
26 Nov 2011 |
Trip of 220kV C Busbar at Gordon Power Station on 26 November 2011 | 29 Mar 2012 |
09 Nov 2011 |
Insecure Power System Operation in South Australia on 9 November 2011 | 13 Apr 2012 |
08 Nov 2011 |
06 Mar 2012 |
October |
Date of |
Incident |
Publication Date |
| 30 Oct 2011 | Trip of 837 Tarong - Mt. England 275 kV Line and Mt. England No. 1 275 kV Busbar on 30 October 2011 | 23 Apr 2012 |
| 24-26 Oct 2011 | Insecure Power System Operation in Tasmania between 24 and 26 October 2011 | 10 Apr 2012 |
| 25 Oct 2011 | Trip of Dederang No.1 220kV Busbar on 25 October 2011 | 13 Apr 2012 |
| Insecure Power System Operation In Tasmania up to October 2011 | 09 Feb 2012 | |
19 Oct 2011 |
Insecure Power System Operation in South Australia on the 19 October 2011 | 16 Feb 2012 |
4 Oct 2011 |
Insecure Power System Operation on 4 October 2011 | 03 Feb 2012 |
September |
|
As yet no reports published for incidents in September |
|
August |
Date of |
Incident |
Publication Date |
18 Aug 2011 |
Trip of No.2 Eildon Generating Unit on 18 August 2011 | 03 Feb 2012 |
July |
Date of |
Incident |
Publication Date |
29 Jul 2011 |
Violation of the Frequency Operating Standards in Tasmania on 29 July 2011 |
20 Jan 2012 |
27 Jul 2011 |
Trip of Newcastle 330 kV 'A' Busbar Section 1 on 27 July 2011 |
10 Nov 2011 |
05 Jul 2011 |
Simultaneous Trip of 97K Cooma - Munyang and 97G Guthega - Murray 132kV Lines on 5 July 2011 |
09 Dec 2011 |
June |
Date of |
Incident |
Publication Date |
8 Jun 2011 |
19 Sep 2011 |
May |
Date of |
Incident |
Publication Date |
20 May 2011 |
Trip of Torrens Island ‘A’ 275 kV West Busbar on 20 May 2011 |
05 Sep 2011 |
13 May 2011 |
23 Aug 2011 |
|
| 9 May 2011 | Trip of Tully No. 2 132 kV busbar and Tully - Ingham South Tee Cardwell 132kV line on 9 May 2011 |
12 Sep 2011 |
2 May 2011 |
31 Aug 2011 |
April |
Date of |
Incident |
Publication Date |
| 25 Apr 2011 | 28 Jul 2011 |
March |
Date of |
Incident |
Publication Date |
| 13 Mar 2011 | Trip of Mullumbimby 132 kV Busbar and Multiple Transmission Lines on 13 March 2011 |
15 Aug 2011 |
February |
Date of |
Incident |
Publication Date |
21 Feb 2011 |
Trip of both Tarong – Blackwall 275 kV lines on 21 February 2011 |
06 Jun 2011 |
| 15 Feb 2011 | Trip of Keith - Snuggery 132kV Line and Snuggery No.2 132/33kV Transformer on 15 February 2011 |
12 Jul 2011 |
| 11 Feb 2011 | Tripping of Robertstown – Para and Robertstown – Tungkillo lines simultaneously on 11 February 2011 |
02 Jun 2011 |
| 8 Feb 2011 | Trip of 132 kV Central Queensland Feeders on 8 February 2011 |
06 Jun 2011 |
| 5 Feb 2011 | Trip of 132 kV busbar at Cowra 132 kV substation in New South Wales on 5 February 2011 |
06 Jun 2011 |
4 Feb 2011 |
Trip of Dederang-Wodonga and Wodonga-Jindera 330 kV lines on 4 February 2011 |
06 Jun 2011 |
2 & 3 Feb 2011 |
02 Jun 2011 |
|
06 Dec 2010 - 3 Feb 2011 |
Waterloo Bus Trippings between 6 December 2010 and 3 February 2011 | 30 Mar 2011 |
January |
Date of |
Incident |
Publication Date |
06 Dec 2010 - 3 Feb 2011 |
Waterloo Bus Trippings between 6 December 2010 and 3 February 2011 | 30 Mar 2011 |
| 24 Jan 2011 | 01 Jun 2011 | |
10 Jan 2011 |
Simultaneous trip of Braemar power station units 1 and 2 on 10 January 2011 |
28 Apr 2011 |
| 10 Jan 2011 | 19 Apr 2011 | |
| 9 Jan 2011 | Trip of Hazelwood Power Station Units 1 and 2 on 9 January 2011 |
04 May 2011 |
3 Jan 2011 |
Trip of Multiple 132kV Transmission Lines near Mackay Substation and Nebo SVC on 3 January 2011 |
29 Apr 2011 |
2010
December |
Date of |
Incident |
Publication Date |
29 Dec 2010 |
Trip of Double Circuit Mackay - Collinsville Tee - Proserpine 132 kV Line and Strathmore SVC on 29 December 2010 | 20 Apr 2011 |
28 Dec 2010 |
Trip of Hazelwood No.2 220 kV bus on 28 December 2010 | 19 Apr 2011 |
| 06 Dec 2010 | Trip of Double Circuit Mackay-Collinsville Tee Proserpine (7125) and (7126) 132 kV Lines on the 6 December 2010 | 21 Mar 2011 |
06 Dec 2010 - 3 Feb 2011 |
Waterloo Bus Trippings between 6 December 2010 and 3 February 2011 | 30 Mar 2011 |
November |
Date of |
Incident |
Publication Date |
28 Nov 2010 |
25 Mar 2010 |
|
10 Nov 2010 |
Operation of Tasmanian Network Control Special Protection System on 10 November 2010 |
11 Mar 2011 |
October |
Date of |
Incident |
Publication Date |
| 24 Oct 2010 | Trip of Kurri to Rothbury 132 kV line and all three Hydro Aluminium potlines on 24 October 2010 | 18 Feb 2011 |
September |
Date of |
Incident |
Publication Date |
| 29 Sep 2010 | Far North Queensland Phase Trip on 29 Sep 2010 | 17 Jan 2011 |
| 26 Sep 2010 | Trip of No 1 and 2 New Osborne 66 kV Busbars on 26 September 2010 | 13 Jan 2011 |
| 18 Sep 2010 | Trip of 275 kV North Busbar at South East Substation - 18 September 2010 | 12 Jan 2011 |
| 03 Sep 2010 | Tripping of Multiple 275 kV Transmission Lines Near Brinkworth Substation in South Australia on 3 September 2010 | 29 Dec 2010 |
August |
|
As yet no reports published for incidents in September |
|
July |
Date of |
Incident |
Publication Date |
29 Jul 2010 |
04 Nov 2010 |
|
| 27 Jul 2010 | Playford 275kV East Bus Trip on 27 July 2010 | 01 Nov 2010 |
| 07 Jul 2010 | Trip of Sydney North 132 kV ‘A’ and ‘B’ Section 1 Busbars on 7 July 2010 | 10 Nov 2010 |
June |
Date of |
Incident |
Publication Date |
17 Jun 2010 |
05 Oct 2010 |
|
| 17 Jun 2010 | Koolkhan 132 kV Busbar Trip on 17 June 2010 | 11 Oct 2010 |
| 15 Jun 2010 | Loss of Swanbank B1 and B2 Generating Units on 15 June 2010 | 08 Sep 2010 |
| 10 Jun 2010 | Trip of multiple Transmission Lines in the vicinity of Braemar 275 kV substation - 10 June 2010 | 05 Oct 2010 |
| 01 Jun 2010 | Trip of Tamworth No.3 330kV Busbar Section on 1 June 2010 | 01 Oct 2010 |
May |
Date of |
Incident |
Publication Date |
| Apr & May 2010 | Northern Power Station Stabiliser Outage – April and May 2010 | 10 Nov 2010 |
| 12 May 2010 | Trip of the Snuggery – Blanche and Snuggery – South East / Mayurra 132 kV Lines on 12 May 2010 | 10 Aug 2010 |
| 05 May 2010 | Collinsville Units 1, 2 & 3 Trip on 5 May 2010 | 16 Aug 2010 |
April |
Date of |
Incident |
Publication Date |
| Apr & May 2010 | Northern Power Station Stabiliser Outage – April and May 2010 | 10 Nov 2010 |
| 29 Apr 2010 | 13 Aug 2010 | |
| 16 Apr 2010 | T55 Turkinje 132KV No 2 Bus Trip 16 April 2010 | 09 Aug 2010 |
| 15 Apr 2010 | Trip of Penola West No. 1 and No. 2 132/33 kV transformers on 15 April 2010 | 05 Aug 2010 |
06 Apr 2010 |
Trip of No.1 and No.3 Busbars at 500 kV Loy Yang Power Station Switchyard - 06 April 2010 |
05 Oct 2010 |
March |
Date of |
Incident |
Publication Date |
27 Mar 2010 |
Trip of Upper Tumut to Canberra and Upper Tumut to Lower Tumut 330kV lines on 27 March 2010 | 11 Mar 2011 |
February |
Date of |
Incident |
Publication Date |
| 27 Feb 2010 | Simultaneous Trip of Hazelwood to Rowville No.1 and No.2 Transmission Lines on 27 February 2010 | 03 Jun 2010 |
| 16 & 17 Feb 2010 | Multiple Contingencies In North Queensland On 16th And 17th February 2010 | 17 Jun 2010 |
| 14 Feb 2010 | Trip of 7153 Lilyvale – Clermont and 7154 Clermont - Barcaldine 132kV lines on 14 February 2010 | 09 Jun 2010 |
| 12 Feb 2010 | Trip of Mackay 'C' 132 kV Busbar on 12 February 2010 | 03 Jun 2010 |
January |
Date of |
Incident |
Publication Date |
| 27 Jan 2010 | Trip of Playford Power Station East 132kV Bus on 27th January 2010 | 18 May 2010 |
| 27 Jan 2010 | Tangkam 110 kV No.1 Busbar Trip on the 27 January 2010 | 14 May 2010 |
| 25 Jan 2010 | Trip of 7139 and 7284 132kV feeders in Queensland - 25 January 2010 | 04 May 2010 |
| 21 Jan 2010 | Trip of Torrens Island B1 and B2 Generating Units on 21 January 2010 | 20 May 2010 |
Archived reports are available from AEMO’s Information Centre.
