Market Notices

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
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
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
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
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
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
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
115404RECLASSIFY CONTINGENCY01/03/2024 01:00:40 AM

Reclassification 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

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: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 01/03/2024 01:00 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
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