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Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV line - NSW region - 31/08/2024
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV line - NSW region - 31/08/2024
At 1630 hrs 31/08/2024 there was a short notice outage of Armidale - Sapphire 8E 330 kV line.
The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E, N-TW_SVC
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1,T-V-MNSP1,N-Q-MNSP1,V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Dumaresq 330 kV SVC - NSW region - 28/08/2024
Inter-regional transfer limit variation - Dumaresq 330 kV SVC - NSW region - 28/08/2024
At 1125 hrs 28/08/2024 there was a short notice outage of Dumaresq 330 kV SVC.
The following constraint set(s) invoked at 1125 hrs 28/08/2024
N-DM_SVC
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
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 28/08/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_55E0E615 from 0900 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Update - Non-credible contingency event - VIC region - 28/08/2024
Update - Non-credible contingency event - VIC region - 28/08/2024
Refer AEMO Electricity Market Notice 117908
At 0134 hrs the APD No 2 Potline was returned to service.
At 0200 hrs the APD No 1 Potline was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 28/08/2024
Non-credible contingency event - VIC region - 28/08/2024
At 0001 hrs the APD No1 Potline and the APD No 2 Potline tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Cancellation - Inter-Regional Transfer limit variation - Murraylink 27/08/2024
Cancellation - Inter-Regional Transfer limit variation - Murraylink 27/08/2024
Refer AEMO Electricity Market Notice 117831
To manage power system security in the Victoria region, AEMO invoked the following network constraint.
Constraint Set invoked from 10:40 hrs 27/08/2024 to 11:00 hrs 27/08/2024
I:SVML_120
This constraint set contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Murraylink 27/08/2024
Inter-Regional Transfer limit variation - Murraylink 27/08/2024
To manage power system security in the Victoria region, AEMO has invoked the following network constraint.
Constraint Set invoked at 10:40 HRS 27/08/2024
I:SVML_120
This constraint set contains equations with the following interconnectors on the LHS.
V-S-MNSP1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Cherry Gardens - Torrens Island B 275kV Line - SA region - 26/08/2024
Inter-regional transfer limit variation - Cherry Gardens - Torrens Island B 275kV Line - SA region - 26/08/2024
At 0250 hrs 26/08/2024 there was a short notice outage of Cherry Gardens - Torrens Island B 275kV Line.
The following constraint set(s) invoked at 0250 hrs 26/08/2024
S-CGTI
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Update - Non-credible contingency event - TAS region - 25/08/2024
Update - Non-credible contingency event - TAS region - 25/08/2024
Refer AEMO Electricity Market Notice 117782
At 1023 hrs the New Norfolk A 110kV Bus was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations