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122444POWER SYSTEM EVENTS23/12/2024 08:40:02 PM
Update - Non-credible contingency event - SA region - 23/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 23/12/2024
Refer AEMO Electricity Market Notice 122442
At 2036 hrs the Happy Valley - Morphett Vale East and the Morphett Vale - Cherry Gardens 275kV lines were 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
Update - Non-credible contingency event - SA region - 23/12/2024
Refer AEMO Electricity Market Notice 122442
At 2036 hrs the Happy Valley - Morphett Vale East and the Morphett Vale - Cherry Gardens 275kV lines were 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
122442POWER SYSTEM EVENTS23/12/2024 04:44:55 PM
Non-credible contingency event - SA region - 23/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 23/12/2024
At 1632 hrs the Happy Valley - Morphett Vale East 275kV Line and the Morphett Vale - Cherry Gardens 275kV line 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
Non-credible contingency event - SA region - 23/12/2024
At 1632 hrs the Happy Valley - Morphett Vale East 275kV Line and the Morphett Vale - Cherry Gardens 275kV line 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
122318INTER-REGIONAL TRANSFER20/12/2024 03:28:59 PM
Inter-regional transfer limit variation - South East No.61 Capacitor 275kV - SA region - 20/12/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South East No.61 Capacitor 275kV - SA region - 20/12/2024
At 1445 hrs 20/12/2024 there was an unplanned outage of South East No.61 Capacitor 275kV.
The following constraint set(s) invoked at 1445 hrs 20/12/2024
S-SE_1CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South East No.61 Capacitor 275kV - SA region - 20/12/2024
At 1445 hrs 20/12/2024 there was an unplanned outage of South East No.61 Capacitor 275kV.
The following constraint set(s) invoked at 1445 hrs 20/12/2024
S-SE_1CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
122317INTER-REGIONAL TRANSFER20/12/2024 03:16:23 PM
Update Inter-regional transfer limit variation - Lismore SVC 132kV - NSW region - 20/12/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lismore SVC 132kV - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of Lismore SVC 132kV.
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
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 - Lismore SVC 132kV - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of Lismore SVC 132kV.
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
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
122310INTER-REGIONAL TRANSFER20/12/2024 01:01:43 PM
Inter-regional transfer limit variation - [outage element] - NSW region - 20/12/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - [outage element] - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of [outage element].
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
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 - [outage element] - NSW region - 20/12/2024
At 1300 hrs 20/12/2024 there was a short notice outage of [outage element].
The following constraint set(s) invoked at 1300 hrs 20/12/2024
N-LS_VC1
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
121806POWER SYSTEM EVENTS12/12/2024 08:52:19 PM
Non-credible contingency event - QLD region - 12/12/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - QLD region - 12/12/2024
At 2026 hrs the Kamerunga to Barron George 132 kV Line 7184 and the Kamerunga to Barron George 132 kV Line 7141 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
Non-credible contingency event - QLD region - 12/12/2024
At 2026 hrs the Kamerunga to Barron George 132 kV Line 7184 and the Kamerunga to Barron George 132 kV Line 7141 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
121739INTER-REGIONAL TRANSFER12/12/2024 01:37:40 AM
Inter-Regional Transfer limit variation - Basslink
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Basslink
There has been an unplanned outage of the Basslink interconnector.
The following constraint set was invoked at 0130 hrs 12/12/2024
I-BL_ZERO
The constraint set contains the following interconnector on the left hand side.
T-V-MNSP1
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Basslink
There has been an unplanned outage of the Basslink interconnector.
The following constraint set was invoked at 0130 hrs 12/12/2024
I-BL_ZERO
The constraint set contains the following interconnector on the left hand side.
T-V-MNSP1
Manager NEM Real Time Operations
121695INTER-REGIONAL TRANSFER10/12/2024 03:31:22 PM
Update - Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 10 Dec 2024
AEMO ELECTRICITY MARKET NOTICE
Refer to MN 121688
In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs to 1510 hrs.
This constraint set contains equations with the following interconnector on the LHS;
NSW1-QLD1, N-Q_MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Refer to MN 121688
In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs to 1510 hrs.
This constraint set contains equations with the following interconnector on the LHS;
NSW1-QLD1, N-Q_MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
121688INTER-REGIONAL TRANSFER10/12/2024 01:00:33 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in QLD region - 10 Dec 2024
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
NSW1-QLD1, N-Q_MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the QLD region, AEMO has invoked automated constraint set CA_SYD_566A36E5 from 1245 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
NSW1-QLD1, N-Q_MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations