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115804MARKET SYSTEMS26/03/2024 06:59:42 AM
CHG0087752 | Completed | Pre-Production | Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.
Change Number: CHG0087752
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Short Term Trading Market
Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Short Term Trading Market
Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
115803MARKET SYSTEMS26/03/2024 06:57:25 AM
CHG0087184 | Completed | Pre-Production | Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.
Change Number: CHG0087184
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Short Term Trading Market
Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Short Term Trading Market
Change Title: Maintenance activities to be performed on the Gas Short Term Trading Market Systems Pre-Production.
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
115794POWER SYSTEM EVENTS25/03/2024 03:48:06 PM
Non-credible contingency event - SA region - Torrens Island 25/03/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - Torrens Island 25/03/2024
At 1412 hrs there was an unplanned outage of the following elements:
Torrens Island BW3 275 kV CB
Torrens Island BC3 275 kV CB
Torrens Island - Lefevre 275 kV line
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 - Torrens Island 25/03/2024
At 1412 hrs there was an unplanned outage of the following elements:
Torrens Island BW3 275 kV CB
Torrens Island BC3 275 kV CB
Torrens Island - Lefevre 275 kV line
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
115783POWER SYSTEM EVENTS25/03/2024 02:17:51 PM
Update - Non-credible contingency event - SA region - 25/03/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 25/03/2024
Refer AEMO Electricity Market Notice 115777
At 1350 hrs the Davenport - Brinkworth 275 kV line, Brinkworth No 3 275/132 kV transformer
and Brinkworth - Templers West 275 kV line 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 - SA region - 25/03/2024
Refer AEMO Electricity Market Notice 115777
At 1350 hrs the Davenport - Brinkworth 275 kV line, Brinkworth No 3 275/132 kV transformer
and Brinkworth - Templers West 275 kV line 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
115778INTER-REGIONAL TRANSFER25/03/2024 09:43:59 AM
Inter-regional transfer limit variation - SA region - 25/03/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - SA region - 25/03/2024
Refer market notice: 115777
At 0810 hrs 25/03/2024 there was an unplanned outage of elements:
Davenport - Brinkworth 275 kV line
Brinkworth No 3 275/132 kV transformer
Brinkworth - Templers West 275 kV line
Constraint set(s) invoked: S-X_DVBR+BRTW+TWPA
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S_MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - SA region - 25/03/2024
Refer market notice: 115777
At 0810 hrs 25/03/2024 there was an unplanned outage of elements:
Davenport - Brinkworth 275 kV line
Brinkworth No 3 275/132 kV transformer
Brinkworth - Templers West 275 kV line
Constraint set(s) invoked: S-X_DVBR+BRTW+TWPA
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S_MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
115777POWER SYSTEM EVENTS25/03/2024 09:27:07 AM
Non-credible contingency event - SA region - 25/03/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 25/03/2024
At 0810 hrs there was an unplanned outage of the following elemets:
Davenport - Brinkworth 275 kV line
Brinkworth No 3 275/132 kV transformer
Brinkworth - Templers West 275 kV line
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 - 25/03/2024
At 0810 hrs there was an unplanned outage of the following elemets:
Davenport - Brinkworth 275 kV line
Brinkworth No 3 275/132 kV transformer
Brinkworth - Templers West 275 kV line
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
115775INTER-REGIONAL TRANSFER25/03/2024 06:49:58 AM
Inter-regional transfer limit variation - Armidale - Uralla 8U 330 kV line - NSW region - 25/03/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Armidale - Uralla 8U 330 kV line - NSW region - 25/03/2024
A planned outage of Armidale - Uralla 8U 330 kV line in the NSW region was scheduled from 0500 hrs 25/03/2024 to 1500 hrs 25/03/2024.
The outage has been returned to service at 0645 hrs 25/03/2024.
Constraint set(s) revoked:
N-ARUL_8U
N-TW_SVC
N-X_8U+DM+TW_SVC
N-MORBOR
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 - Armidale - Uralla 8U 330 kV line - NSW region - 25/03/2024
A planned outage of Armidale - Uralla 8U 330 kV line in the NSW region was scheduled from 0500 hrs 25/03/2024 to 1500 hrs 25/03/2024.
The outage has been returned to service at 0645 hrs 25/03/2024.
Constraint set(s) revoked:
N-ARUL_8U
N-TW_SVC
N-X_8U+DM+TW_SVC
N-MORBOR
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
115772INTER-REGIONAL TRANSFER24/03/2024 04:47:46 PM
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 3 cable of Directlink.
The following constraint set was invoked at 1640 hrs 24/03/2024
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 3 cable of Directlink.
The following constraint set was invoked at 1640 hrs 24/03/2024
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
115771POWER SYSTEM EVENTS24/03/2024 04:39:39 PM
Update - Non-credible contingency event - SA region - 14/03/2024
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 14/03/2024
Refer AEMO Electricity Market Notice 115624
At 1635 hrs the Tungkillo - Robertstown No. 1 275 kV Line and the Tungkillo East 275 kV 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
Update - Non-credible contingency event - SA region - 14/03/2024
Refer AEMO Electricity Market Notice 115624
At 1635 hrs the Tungkillo - Robertstown No. 1 275 kV Line and the Tungkillo East 275 kV 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