Filter by:
Filter by category
Filter by Date
From
To
115408INTER-REGIONAL TRANSFER01/03/2024 08:15:32 AM
Inter-regional transfer limit variation - Mt Piper 500/330 kV TIE1 Transformer - NSW region - 01/03/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Mt Piper 500/330 kV TIE1 Transformer - NSW region - 01/03/2024
At 0747 hrs 01/03/2024 there was an unplanned outage of Mt Piper 500/330 kV TIE1 Transformer.
Constraint set(s) invoked: N-MPTX
The following constraint set(s) invoked at 0755 hrs 01/03/2024
N-MPTX
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Mt Piper 500/330 kV TIE1 Transformer - NSW region - 01/03/2024
At 0747 hrs 01/03/2024 there was an unplanned outage of Mt Piper 500/330 kV TIE1 Transformer.
Constraint set(s) invoked: N-MPTX
The following constraint set(s) invoked at 0755 hrs 01/03/2024
N-MPTX
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1,NSW1-QLD1,VIC1-NSW1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
115398INTER-REGIONAL TRANSFER29/02/2024 07:06:55 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_54F2D1C0 from 1850 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_BRIS_54F2D1C0 from 1850 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
115372INTER-REGIONAL TRANSFER29/02/2024 04:18:08 PM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA-BRIS_54F2ABFD_1 from 1610 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/02/2024
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA-BRIS_54F2ABFD_1 from 1610 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
115296INTER-REGIONAL TRANSFER28/02/2024 03:25:40 PM
Inter-regional transfer limit variation - 275kV South Pine SVC - QLD region - 28/02/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation -275kV South Pine SVC - QLD region - 28/02/2024
At 1425 hrs 28/02/2024 there was an unplanned outage of 275kV South Pine SVC.
Constraint set Q-SP_VC invoked from 1435 hrs.
The constraint set contains equations with the following interconnector 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 -275kV South Pine SVC - QLD region - 28/02/2024
At 1425 hrs 28/02/2024 there was an unplanned outage of 275kV South Pine SVC.
Constraint set Q-SP_VC invoked from 1435 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
NSW1-QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
115270POWER SYSTEM EVENTS28/02/2024 12:17:11 PM
Non-credible contingency event - QLD region - 28/02/2024
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - QLD region - 28/02/2024
At 1029 hrs the Tully - Cardwell No.7389 132 kV Line tripped and auto reclosed and Ross - Woree No. 8905 275 kV Line tripped and auto reclosed.
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 - 28/02/2024
At 1029 hrs the Tully - Cardwell No.7389 132 kV Line tripped and auto reclosed and Ross - Woree No. 8905 275 kV Line tripped and auto reclosed.
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
115256INTER-REGIONAL TRANSFER28/02/2024 11:02:16 AM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/02/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/02/2024
In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_54F10C1F from 1035 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-S_MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/02/2024
In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_54F10C1F from 1035 hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-S_MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
115120INTER-REGIONAL TRANSFER25/02/2024 07:46:45 PM
Inter-regional transfer limit variation - Moorabool Sydenham No1 500 kV line - Vic region - 25/02/2024
AEMO ELECTRICITY MARKET NOTICE
At 1929 hrs 25/02/2024 in the Victoria region the Moorabool Sydenham No1 500 kV line returned to service on temporary towers.
The Moorabool Sydenham No2 500 kV line remains out of service
Constraint set changes.
Invoked:
V-MLSY_NOEMTT_R
Revoked:
V-X_MLSY_MLTS_TIE
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer Market Notices 114577, 114768, 114686 and 114770
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
At 1929 hrs 25/02/2024 in the Victoria region the Moorabool Sydenham No1 500 kV line returned to service on temporary towers.
The Moorabool Sydenham No2 500 kV line remains out of service
Constraint set changes.
Invoked:
V-MLSY_NOEMTT_R
Revoked:
V-X_MLSY_MLTS_TIE
This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Refer Market Notices 114577, 114768, 114686 and 114770
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
114889CONSTRAINTS20/02/2024 07:23:40 AM
Update to system strength constraints in North Queensland
AEMO ELECTRICITY MARKET NOTICE
Refer to market notice 110677
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal system strength equations for low North Queensland demands and all Karreya stations out of service conditions have been revised.
A revision to the constraint equations will be implemented at 1400 hrs on Tuesday 20th February 2024.
The new system strength combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases.
Below constraint equations in the Q-NIL set will be modified:
- Q_NIL_STRGTH_KBWF
- Q_NIL_STRGTH_KBWF_I
- Q_NIL_STRGTH_HAUSF
- Q_NIL_STRGTH_HAUSF_I
- Q_NIL_STRGTH_MEWF
- Q_NIL_STRGTH_MEWF_I
AEMO Operations
Refer to market notice 110677
AEMO and Powerlink are continuing to investigate system strength requirements in North Queensland.
Due to commissioning of new feeder 8905 (H13 Ross - H39 Woree) 275kV line in Far North Queensland, the system normal system strength equations for low North Queensland demands and all Karreya stations out of service conditions have been revised.
A revision to the constraint equations will be implemented at 1400 hrs on Tuesday 20th February 2024.
The new system strength combinations have now published in a limits advice document on AEMO's website. For more information refer to the new limits advice: https://www.aemo.com.au/energy-systems/electricity/national-electricity-market-nem/system-operations/congestion-information-resource/limits-advice
This advice contains all the combinations for Queensland for system normal cases.
Below constraint equations in the Q-NIL set will be modified:
- Q_NIL_STRGTH_KBWF
- Q_NIL_STRGTH_KBWF_I
- Q_NIL_STRGTH_HAUSF
- Q_NIL_STRGTH_HAUSF_I
- Q_NIL_STRGTH_MEWF
- Q_NIL_STRGTH_MEWF_I
AEMO Operations
114880INTER-REGIONAL TRANSFER19/02/2024 02:31:03 PM
Inter-regional transfer limit variation -Directlink DC2 - NSW region - 19/02/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Directlink DC2 - NSW region - 19/02/2024
A planned outage of Directlink DC2 in the NSW region was scheduled from 2000 hrs 16/02/2024 to 1701 hrs 20/02/2024.
The outage has been completed and Directlink DC2 returned to service at 1425 hrs 19/02/2024.
The following constraint set(s) revoked at 1425 hrs 19/02/2024
N-MBTE_1
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 - Directlink DC2 - NSW region - 19/02/2024
A planned outage of Directlink DC2 in the NSW region was scheduled from 2000 hrs 16/02/2024 to 1701 hrs 20/02/2024.
The outage has been completed and Directlink DC2 returned to service at 1425 hrs 19/02/2024.
The following constraint set(s) revoked at 1425 hrs 19/02/2024
N-MBTE_1
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