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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
Network Augmentation Commissioned - VIC Region - 27/08/2024
Network Augmentation Commissioned - VIC Region - 27/08/2024
Cressy - Golden Plains No. 1 220 kV Line has been commissioned.
Golden Plains Terminal Station has been commissioned.
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
Non-credible contingency event - TAS region - 25/08/2024
Non-credible contingency event - TAS region - 25/08/2024
At 0850 hrs the New Norfolk A 110kV Bus tripped.
AEMO did not instruct load shedding.
AEMO has not been advised of any disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations