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Inter-regional transfer limit variation - Armidale - Uralla 8U 330 kV line - NSW region - 25/03/2024
Inter-regional transfer limit variation - Armidale - Uralla 8U 330 kV line - NSW region - 25/03/2024
A planned outage of Armidale - Uralla 8U 330 kV line in the NSW region was scheduled from 0500 hrs 25/03/2024 to 1500 hrs 25/03/2024.
The outage has been returned to service at 0645 hrs 25/03/2024.
Constraint set(s) revoked:
N-ARUL_8U
N-TW_SVC
N-X_8U+DM+TW_SVC
N-MORBOR
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Severe Space Weather Watch Notification 25/03/2024
Severe Space Weather Watch Notification 25/03/2024
The Australian Bureau of Meteorology's Space Weather Forecasting Centre has issued the following notification.
Severe space weather watch: A recent space weather event is anticipated to impact the Earth within the next 48 hours.
The effects are expected to be significant.
Increased awareness of critical infrastructure is advised.
Please monitor the SWS website for further updates at https://www.sws.bom.gov.au
If required; actions will be taken as per AEMO's system operating procedure SO_OP3715 Power System Security Guidelines.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of the No 3 cable of Directlink.
The following constraint set was invoked at 1640 hrs 24/03/2024
N-MBTE_1
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Cancellation 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.
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: Tumoulin - Woree No.877 275 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 24/03/2024 15:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 115767
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation 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.
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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 24/03/2024 15:49
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 115768
Auto-generated on behalf of Manager NEM Real Time Operations
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.
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: 24/03/2024 13:48 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: Tumoulin - Woree No.877 275 kV line and Chalumbin - Turkinje No.7166 132 kV line in QLD1 due to Lightning.
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: 24/03/2024 13:48 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - Palmerston - Hadspen No2 220 kV Line - TAS region - 20/03/2024
Inter-regional transfer limit variation - Palmerston - Hadspen No2 220 kV Line - TAS region - 20/03/2024
At 1830 hrs 20/03/2024 there will be a short notice outage of Palmerston - Hadspen No2 220 kV Line.
The following constraint set invoked at 1830 hrs 20/03/2024
T-HAPM_220
This constraint set contains equations with the following interconnectors on the LHS.
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Cancellation time: 19/03/2024 20:39
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 115707
Auto-generated on behalf of Manager NEM Real Time Operations