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121869RECLASSIFY CONTINGENCY13/12/2024 04:41:07 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 13/12/2024 16:41 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 13/12/2024 16:41 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
121868RECLASSIFY CONTINGENCY13/12/2024 03:54:20 PM
Cancellation of a Non-Credible Contingency Event: Collinsville - Stoney Creek 7306 132KV LINE line and Collinsville - Newlands 7121 132KV LINE line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE
Cancellation time: 13/12/2024 15:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 121835
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Collinsville - Stoney Creek 7306 132KV LINE and Collinsville - Newlands 7121 132KV LINE
Cancellation time: 13/12/2024 15:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 121835
Auto-generated on behalf of Manager NEM Real Time Operations
121858RECLASSIFY CONTINGENCY13/12/2024 03:25:56 PM
Reclassification of a Non-Credible Contingency Event: Ross - Tully South - Woree No.8905 275 kV line line and Cardwell - Tully No.7389 132kV line line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 13/12/2024 15:25 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Ross - Tully South - Woree No.8905 275 kV line and Cardwell - Tully No.7389 132kV line
Duration: 13/12/2024 15:25 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
121843RECLASSIFY CONTINGENCY13/12/2024 01:14:35 PM
Reclassification of a Non-Credible Contingency Event: Guybal Munjan - Chalumbin 857 275kV line line and Guybal Munjan - Chalumbin 858 275kV line line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line
Duration: 13/12/2024 13:14 until further notice
Constraint set(s) invoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Guybal Munjan - Chalumbin 857 275kV line and Guybal Munjan - Chalumbin 858 275kV line
Duration: 13/12/2024 13:14 until further notice
Constraint set(s) invoked:
Q-RSCH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
121842GENERAL NOTICE13/12/2024 01:14:02 PM
CORRECTION: Update - Vulnerable lines in QLD region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 121840
Fix typo: Line 7141 should read Line 7143
At 2026 hrs 12/12/2024 the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 121840
Fix typo: Line 7141 should read Line 7143
At 2026 hrs 12/12/2024 the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7143 to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
121841RECLASSIFY CONTINGENCY13/12/2024 01:15:19 PM
Reclassification of a Non-Credible Contingency Event: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines in QLD due to lightning.
AEMO ELECTRICITY MARKET NOTICE.
Reclassification of a non-credible contingency event as a credible contingency event due to lightning.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD
Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines
Duration: 13/12/2024 13:07 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
Reclassification of a non-credible contingency event as a credible contingency event due to lightning.
AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD
Lines: Kamerunga to Barron Gorge No.7184 132 kV and the Kamerunga to Barron Gorge No.7143 132 kV lines
Duration: 13/12/2024 13:07 until further notice
Constraint set(s) invoked: Nil
Manager NEM Real Time Operations
121840GENERAL NOTICE13/12/2024 01:07:46 PM
Update - Vulnerable lines in QLD region
AEMO ELECTRICITY MARKET NOTICE.
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 121806
At 2026 hrs 12/12/2024 the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7141 tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7141 to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Update - Lightning vulnerable lines in QLD region
Refer to AEMO Electricity Market Notice 121806
At 2026 hrs 12/12/2024 the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7141 tripped.
The cause of the trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Kamerunga to Barron Gorge 132 kV Line 7184 and the Kamerunga to Barron Gorge 132 kV Line 7141 to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
121838RECLASSIFY CONTINGENCY13/12/2024 12:51:12 PM
Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 13/12/2024 12:51 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 13/12/2024 12:51 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
121837RECLASSIFY CONTINGENCY13/12/2024 12:51:13 PM
Reclassification of a Non-Credible Contingency Event: Tumoulin - Woree No.877 275 kV line and Chalumbin - Turkinje No.7166 132 kV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 13/12/2024 12:51 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: QLD1
Lines: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 13/12/2024 12:51 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations