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Update - Non-credible contingency event - TAS region - 19/09/2024
Update - Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines tripped.
AEMO did not instruct load shedding.
AEMO has advised of approximately 112 MW disconnection of bulk electrical load,
disconnection of generation at Studland Bay Wind generator (71 MW) and 23 MW generation reduction at Gordon Power station.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Non-credible contingency event - TAS region - 19/09/2024
Non-credible contingency event - TAS region - 19/09/2024
At 1340 hrs the Gordon - Chapel St No1 and No 2 220 kV lines 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
Planned outage of Tailem Bend - South East 275 kV transmission line in the South Australia region beginning on 20/09/2024
The Tailem Bend - South East No 1 275 kV line in the South Australian (SA) region is planned to be out of service from 2100 hrs on 20/09/2024 to 0530 hrs on 21/09/2024.
A credible contingency event during this planned outage could cause synchronous separation of the SA region from the rest of the NEM.
During this planned outage:
- Power transfer will be restricted across the VIC - SA interconnector (Heywood interconnector); and
- Post contingent FCAS will be sourced within SA following Separation event.
Refer AEMO Network Outage Schedule (NOS) for further details.
AEMO Operations
Inter-regional transfer limit variation -South East to Tailem Bend No 1 275 KV Line - SA region - 17/09/2024
Inter-regional transfer limit variation - South East to Tailem Bend No 1 275 KV Line - SA region - 17/09/2024
At 1034 hrs 17/09/2024 there was a short notice outage of South East to Tailem Bend No 1 275 KV Line.
The following constraint set(s) invoked at 1035 hrs 20/09/2024
S-TBSE,
S-BC_CP
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,NSW1-QLD1,T-V-MNSP1,V-S-MNSP1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Braemar No2 330 kV / 275 kV Transformer. - QLD region - 14/09/2024
Inter-regional transfer limit variation - Braemar No2 330 kV / 275 kV Transformer. - QLD region - 14/09/2024
At 1320 hrs 14/09/2024 there was a short notice outage of Braemar No2 330 kV / 275 kV Transformer.
The following constraint set(s) invoked at 1320 hrs 14/09/2024
Q-BRTX2
This constraint set(s) contains equations with the following interconnectors on the LHS.
NSW1-QLD1
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 - 13/09/2024
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 1330 hrs 14/09/2024.
The outage has been completed and Armidale - Sapphire 8E 330 KV Line returned to service at 1600 hrs 13/09/2024
Constraint set(s) revoked: N-ARSR_8E, N-TW_SVC
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 13/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 1330 hrs 13/09/2024.
The outage has been rescheduled for 1630 hrs 11/09/2024 to 1330 hrs 14/09/2024.
Constraint sets invoked: 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 - Murraylink - SA region - 12/09/2024
Inter-regional transfer limit variation - Murraylink - SA region - 12/09/2024
A planned outage of Murraylink in the SA region was scheduled from 1030 hrs 12/09/2024 to 1630 hrs 12/09/2024.
The outage has been completed and Murraylink returned to service at 1235 hrs 12/09/2024
Constraint set(s) revoked: I-MURRAYLINK
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 12/09/2024
Inter-regional transfer limit variation - Armidale - Sapphire 8E 330 KV Line - NSW region - 12/09/2024
A planned outage of Armidale - Sapphire 8E 330 KV Line in the NSW region was scheduled from 1630 hrs 11/09/2024 to 0900 hrs 16/09/2024.
The outage has been rescheduled for 1630 hrs 11/09/2024 to 1330 hrs 13/09/2024.
Constraint sets invoked: 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