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Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024
In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_5590C0E2 from 1355hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-S-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 27/06/2024
Non-credible contingency event - NSW region - 27/06/2024
At 0845 hrs the Sydney West No.1 330 kV SVC tripped during switching for planned outage of Sydney West No.4 330/132 kV transformer.
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
Inter-regional transfer limit variation - Heywood - South East No 2 275 kV Line - SA region - 26/06/2024
Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/06/2024
A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0815 hrs 26/06/2024 to 1930 hrs 26/06/2024.
The outage has been completed and Heywood - South East No 2 275 kV Line returned to service at 1410 hrs 26/06/2024
Constraint set(s) revoked:
I-HYSE
I-VS_050
I-VS+LKB_050
Manager NEM Real Time Operations
Inter-regional transfer limit variation -Hazelwood - South Morang No 1 500 kV Line - VIC region - 25/06/2024
Inter-regional transfer limit variation - Hazelwood - South Morang No 1 500 kV Line - VIC region - 25/06/2024
A planned outage of Hazelwood - South Morang No 1 500 kV Line in the VIC region was scheduled from 0800 hrs 25/06/2024 to 1530 hrs 25/06/2024.
The outage has been completed and Hazelwood - South Morang No 1 500 kV Line returned to service at 1016 hrs 25/06/2024
Constraint set(s) revoked: V-HWSM
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 25/06/2024
Non-credible contingency event - NSW region - 25/06/2024
At 0901 hrs the Sydney West No.1 330 kV SVC tripped during switching for planned outage of Sydney West No.4 330/132 kV transformer.
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 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
Cancellation of Actual (LOR1) condition in the NSW region - 20/06/2024
Cancellation of Actual (LOR1) condition in the NSW region - 20/06/2024
The Actual LOR1 Condition in the NSW Region advised in AEMO Electricity Market Notice No.117086 is cancelled at 1930hrs 20/06/2024.
Manager NEM Real Time Operations
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 20/06/2024
Actual Lack Of Reserve Level 1 (LOR1) in the NSW region - 20/06/2024
An Actual LOR1 condition has been declared under clause 4.8.4(b) of the National Electricity Rules for the NSW region from 1800 hrs.
The Actual LOR1 condition is forecast to exist until 1900 hrs
The capacity reserve requirement is 1726 MW
The minimum capacity reserve available is 1695 MW
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 1 Leg of Directlink .
The following constraint set was invoked at 1725 hrs 19/06/2024
N-X_MBTE_2
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
Inter-regional transfer limit variation - Collector Wind Farm to Yass 3L 330kV line - NSW region - 18/06/2024
Inter-regional transfer limit variation - Collector Wind Farm to Yass 3L 330kV line - NSW region - 18/06/2024
A planned outage of Collector Wind Farm to Yass 3L 330kV line in the NSW region was scheduled from 0600 hrs 03/04/2024 to 1500 hrs 08/07/2024.
The outage has been completed and Collector Wind Farm to Yass 3L 330kV line returned to service at 1515 hrs 18/06/2024
Constraint set revoked: N-CTYS_3L_WG_CLOSE
Manager NEM Real Time Operations