Market Notices

117904GENERAL NOTICE27/08/2024 05:00:48 PM

Network Augmentation Commissioned - VIC Region - 27/08/2024

AEMO ELECTRICITY MARKET NOTICE

Network Augmentation Commissioned - VIC Region - 27/08/2024

Cressy - Golden Plains No. 1 220 kV Line has been commissioned.
Golden Plains Terminal Station has been commissioned.

Manager NEM Real Time Operations
     
117832INTER-REGIONAL TRANSFER27/08/2024 11:05:19 AM

Cancellation - Inter-Regional Transfer limit variation - Murraylink 27/08/2024

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Inter-Regional Transfer limit variation - Murraylink 27/08/2024

Refer AEMO Electricity Market Notice 117831

To manage power system security in the Victoria region, AEMO invoked the following network constraint.

Constraint Set invoked from 10:40 hrs 27/08/2024 to 11:00 hrs 27/08/2024
I:SVML_120

This constraint set contains equations with the following interconnectors on the LHS.
V-S-MNSP1

Manager NEM Real Time Operations
     
117831INTER-REGIONAL TRANSFER27/08/2024 10:51:11 AM

Inter-Regional Transfer limit variation - Murraylink 27/08/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Murraylink 27/08/2024

To manage power system security in the Victoria region, AEMO has invoked the following network constraint.

Constraint Set invoked at 10:40 HRS 27/08/2024
I:SVML_120

This constraint set contains equations with the following interconnectors on the LHS.
V-S-MNSP1

Manager NEM Real Time Operations
     
117818RECLASSIFY CONTINGENCY27/08/2024 05:36:33 AM

Reclassification of a Non-Credible Contingency Event: Para-Templers West and Magill-Torrens Island A 275kV lines in SA due to severe weather warning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to severe weather warning.

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: SA

Lines: Para-Templers West and Magill-Torrens Island A 275kV lines

Duration: 0530 hrs 27 Aug 2024 until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
     
117817RECLASSIFY CONTINGENCY26/08/2024 01:57:09 PM

Cancellation of the reclassification of a Non-Credible Contingency Event: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of the reclassification of a Non-Credible Contingency Event: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Refer AEMO Electricity Market Notice 117212

AEMO considers the simultaneous trip of the following elements no longer reasonably possible. Accordingly its classification has reverted to a non-credible contingency event.

Region: NSW

Elements: Sydney West No.1 330 kV SVC and any single Sydney West 330/132 kV transformer
Cancellation time:: 1400 hrs 26/08/2024
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
     
117807RECLASSIFY CONTINGENCY26/08/2024 03:44:15 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: 26/08/2024 03:44

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 117805

Auto-generated on behalf of Manager NEM Real Time Operations
     
117806INTER-REGIONAL TRANSFER26/08/2024 03:08:55 AM

Inter-regional transfer limit variation - Cherry Gardens - Torrens Island B 275kV Line - SA region - 26/08/2024

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Cherry Gardens - Torrens Island B 275kV Line - SA region - 26/08/2024

At 0250 hrs 26/08/2024 there was a short notice outage of Cherry Gardens - Torrens Island B 275kV Line.

The following constraint set(s) invoked at 0250 hrs 26/08/2024
S-CGTI

This constraint set(s) contains equations with the following interconnectors on the LHS.
V-S-MNSP1,V-SA

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
     
117805RECLASSIFY CONTINGENCY26/08/2024 02:41:50 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: 26/08/2024 02:41 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
     
117804RECLASSIFY CONTINGENCY26/08/2024 02:34:21 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: 26/08/2024 02:34

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 117802

Auto-generated on behalf of Manager NEM Real Time Operations
     
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