Market Notices

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
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
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
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
114827INTER-REGIONAL TRANSFER16/02/2024 08:17:01 PM

Short Notice Outage - Directlink - NSW Region - 16 February 2024

AEMO ELECTRICITY MARKET NOTICE

Short Notice Outage - Directlink - NSW Region - 16 February 2024

A short notice outage of Directlink cable DC2 in the NSW Region.

Constraint set N-MBTE_1 invoked from 2010 hrs.

The constraint set contains equations with the following interconnector on the LHS:

N-Q-MNSP1

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


Manager NEM Real Time Operations
114810INTER-REGIONAL TRANSFER16/02/2024 02:44:54 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 all three legs of Directlink .

The following constraint set was invoked at 1440 hrs 16/02/2024

N-X_MBTE_3

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
114770INTER-REGIONAL TRANSFER15/02/2024 07:34:10 PM

Inter-regional transfer limit variation - Moorabool Sydenham 500 kV lines - Vic region - 15/02/2024

AEMO ELECTRICITY MARKET NOTICE

At 1905 hrs 15/02/2024 in the Victoria region interim work was completed at Moorabool and Sydenham terminal stations to provide additional 500 kV bus ties.

As a result of this completed work the South Australia region is no longer on a credible risk of separation.

Constraint set changes.

Invoked:
V-X_MLSY_MLTS_TIE

Revoked:

F-V-X_ML_BUSTIE_500
I-VS_050
S-X_BC_CP
V-X_MLSY

This constraint set(s) contains equations with the following interconnectors on the LHS.
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1- NSW1
Rfer Market Notices 114577, 114768, 114686

Refer to the AEMO Network Outage Scheduler for further information.

Manager NEM Real Time Operations
114759POWER SYSTEM EVENTS15/02/2024 02:06:23 PM

Update: Significant power system event - Victoria Region - Hazelwood transformers and Hazelwood PS - Jeeralang No 2 220kV -13/02/2024

AEMO ELECTRICITY MARKET NOTICE.

Update - Significant power system event - 13/02/2024

Refer AEMO Electricity Market Notices 114685

At 1247 hrs 15/02/2024 the Hazelwood PS - Jeeralang No 2 220kV line was returned to service in the Victoria region

All of the equipment has now been returned to service.

The cause of this significant power system 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
114688INTER-REGIONAL TRANSFER14/02/2024 03:05:05 AM

Inter-regional transfer limit variation: Hazelwood - South Morang No 1 500 kV Line (VIC) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

The Hazelwood - South Morang No 1 500 kV Line has been de-energised to manage voltages in the Victoria region.

The following constraint set was invoked at 0235 hrs 14/02/2024

V-HWSM

The constraint set contains equations with the following interconnectors on the LHS.

T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1

Refer to AEMO Network Outage Scheduler (NOS) for return to service details

Manager NEM Real Time Operations
X
Cookies help us improve your website experience.
By using our website, you agree to our use of cookies.
Confirm