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118166POWER SYSTEM EVENTS06/09/2024 12:38:00 PM
Non-credible contingency event - VIC region - 06/09/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 06/09/2024
At 1222 hrs the Loy Yang PS No. 4 500 kV 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
Non-credible contingency event - VIC region - 06/09/2024
At 1222 hrs the Loy Yang PS No. 4 500 kV 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
118131INTER-REGIONAL TRANSFER05/09/2024 07:35:19 AM
Inter-Regional Transfer limit variation - Directlink - NSW Region
AEMO ELECTRICITY MARKET NOTICE
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 0735 hrs 05/09/2024
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
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 0735 hrs 05/09/2024
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
118070INTER-REGIONAL TRANSFER02/09/2024 03:36:51 PM
Inter-regional transfer limit variation - Lismore-Lismore132 9W1 132kV Line - NSW region - 02/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Lismore-Lismore132 9W1 132kV Line - NSW region - 02/09/2024
At 1516 hrs 02/09/2024 there was an unplanned outage of Lismore-Lismore132 9W1 132kV Line
The following constraint set(s) invoked at 1525 hrs 02/09/2024
N-LSLS_9U8
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Lismore-Lismore132 9W1 132kV Line - NSW region - 02/09/2024
At 1516 hrs 02/09/2024 there was an unplanned outage of Lismore-Lismore132 9W1 132kV Line
The following constraint set(s) invoked at 1525 hrs 02/09/2024
N-LSLS_9U8
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
118061INTER-REGIONAL TRANSFER02/09/2024 01:57:46 PM
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV Line - NSW region - 02/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV Line - NSW region - 02/09/2024
A planned outage of Armidale - Sapphire 8E 330 kV Line in the NSW region was scheduled from 1630 hrs 31/08/2024 to 1800 hrs 02/09/2024.
The outage has been rescheduled for 1630 hrs 31/08/2024 to 1200 hrs 03/09/2024.
The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E, N-DM_SVC, 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 - Armidale - Sapphire 8E 330 kV Line - NSW region - 02/09/2024
A planned outage of Armidale - Sapphire 8E 330 kV Line in the NSW region was scheduled from 1630 hrs 31/08/2024 to 1800 hrs 02/09/2024.
The outage has been rescheduled for 1630 hrs 31/08/2024 to 1200 hrs 03/09/2024.
The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E, N-DM_SVC, 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
118026INTER-REGIONAL TRANSFER01/09/2024 10:39:29 AM
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330kv Line- NSW region - 01/09/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330kv Line - NSW region - 01/09/2024
A planned outage of Armidale - Sapphire 8E 330kv Line in the NSW region was scheduled from 1630 hrs 31/08/2024 to 0910 hrs 02/09/2024.
The outage has been rescheduled for 1630 hrs 31/08/2024 to 1800 hrs 02/09/2024.
The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E
N-TW_SVC
N-DM_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 - Armidale - Sapphire 8E 330kv Line - NSW region - 01/09/2024
A planned outage of Armidale - Sapphire 8E 330kv Line in the NSW region was scheduled from 1630 hrs 31/08/2024 to 0910 hrs 02/09/2024.
The outage has been rescheduled for 1630 hrs 31/08/2024 to 1800 hrs 02/09/2024.
The following constraint set(s) invoked at 1630 hrs 31/08/2024
N-ARSR_8E
N-TW_SVC
N-DM_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
118016INTER-REGIONAL TRANSFER31/08/2024 04:31:20 PM
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 kV line - NSW region - 31/08/2024
AEMO ELECTRICITY MARKET NOTICE
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 - 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
117922INTER-REGIONAL TRANSFER28/08/2024 11:36:17 AM
Inter-regional transfer limit variation - Dumaresq 330 kV SVC - NSW region - 28/08/2024
AEMO ELECTRICITY MARKET NOTICE
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 - 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
117916INTER-REGIONAL TRANSFER28/08/2024 09:06:54 AM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 28/08/2024
AEMO ELECTRICITY MARKET NOTICE
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
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
117909POWER SYSTEM EVENTS28/08/2024 02:17:12 AM
Update - Non-credible contingency event - VIC region - 28/08/2024
AEMO ELECTRICITY MARKET NOTICE.
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
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