Market Notices

115833POWER SYSTEM EVENTS27/03/2024 03:48:18 PM

Non-credible contingency event - SA region - Torrens Island 27/03/2024

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - SA region - Torrens Island 27/03/2024

At 1529 hrs there was an unplanned outage of the following elements:
Torrens Island A 275 kV West Bus
Torrens Island AC3 275 kV CB

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
115828INTER-REGIONAL TRANSFER27/03/2024 10:08:49 AM

Inter-Regional Transfer limit variation - Murraylink

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Murraylink

There has been an unplanned outage of Murraylink.

The following constraint set was invoked at 1005 hrs 27/03/2024

I-MURRAYLINK

The constraint set contains the following interconnector on the left hand side.

V-S-MNSP1,VIC1-NSW1

Refer to AEMO Network Outage Scheduler (NOS) for further details.

Manager NEM Real Time Operations
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
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
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
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
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
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
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
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