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115424INTER-REGIONAL TRANSFER01/03/2024 05:37:17 PM
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/12/2023
AEMO ELECTRICITY MARKET NOTICE
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/12/2023
Refer AEMO Electricity Market Notice 115398.
Constraint set CA_BRIS_54F2D1C0 revoked 1710 hrs.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 29/12/2023
Refer AEMO Electricity Market Notice 115398.
Constraint set CA_BRIS_54F2D1C0 revoked 1710 hrs.
This constraint set contains equations with the following interconnector on the LHS;
VIC1-NSW1
Manager NEM Real Time Operations
115420RECLASSIFY CONTINGENCY01/03/2024 03:53:06 PM
Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 01/03/2024 15:53 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 01/03/2024 15:53 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
115419INTER-REGIONAL TRANSFER01/03/2024 04:22:02 PM
Inter-regional transfer limit variation - Para - Roseworthy 132 kV Line - SA region - 01/03/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Para - Roseworthy 132 kV Line - SA region - 01/03/2024
At 1515 hrs 01/03/2024 there was a short notice outage of Para - Roseworthy 132 kV Line.
The following constraint set was invoked at 1530 hrs 01/03/2024
S-PARS
This constraint set 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 - Para - Roseworthy 132 kV Line - SA region - 01/03/2024
At 1515 hrs 01/03/2024 there was a short notice outage of Para - Roseworthy 132 kV Line.
The following constraint set was invoked at 1530 hrs 01/03/2024
S-PARS
This constraint set 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
115412RECLASSIFY CONTINGENCY01/03/2024 02:44:48 PM
Cancellation of Reclassification of a Non-Credible Contingency Event: Tully - Cardwell No.7389 132 kV Line and Ross - Woree No. 8905 275 kV Line
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Tully - Cardwell No.7389 132 kV Line and Ross - Woree No. 8905 275 kV Line
Cancellation time: 01/03/2024 14:30
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 115273
Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Tully - Cardwell No.7389 132 kV Line and Ross - Woree No. 8905 275 kV Line
Cancellation time: 01/03/2024 14:30
Constraint set(s) revoked: Nil
Refer AEMO Electricity Market Notice 115273
Manager NEM Real Time Operations
115410RECLASSIFY CONTINGENCY01/03/2024 01:39:01 PM
Reclassification of a Non-Credible Contingency Event: Armidale - Dumaresq 8C 330kV line and Armidale - Sapphire WF 8E 330kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 01/03/2024 13:38 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Armidale - Dumaresq 8C 330kV and Armidale - Sapphire WF 8E 330kV
Duration: 01/03/2024 13:38 until further notice
Constraint set(s) invoked:
N-ARDM_ARSR_1PH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
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
115407RECLASSIFY CONTINGENCY01/03/2024 03:39:25 AM
Cancellation of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 01/03/2024 03:39
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 115405
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Cancellation time: 01/03/2024 03:39
Constraint set(s) revoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Refer AEMO Electricity Market Notice 115405
Auto-generated on behalf of Manager NEM Real Time Operations
115406RECLASSIFY CONTINGENCY01/03/2024 03:04:25 AM
Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 01/03/2024 03:04
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 115404
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 01/03/2024 03:04
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 115404
Auto-generated on behalf of Manager NEM Real Time Operations
115405RECLASSIFY CONTINGENCY01/03/2024 01:37:20 AM
Reclassification of a Non-Credible Contingency Event: Bannaby - Mt Piper 5A6 500kV line and Bannaby - Mt Piper 5A7 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 01/03/2024 01:37 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: NSW1
Lines: Bannaby - Mt Piper 5A6 500kV and Bannaby - Mt Piper 5A7 500kV
Duration: 01/03/2024 01:37 until further notice
Constraint set(s) invoked:
N-5A6+5A7_N-2 Constraint set contains the following interconnector(s) on the left hand side:
N-Q-MNSP1
NSW1-QLD1
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations