Market Notices

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - QLD region - 27/07/2024

At 0951 hrs the H3 Goodna No. 2 275kV Bus and the H3 Goodna No. 1 275/132kV transformer tripped.

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Heywood M1 Transformer - VIC region - 25/07/2024

A planned outage of Heywood M1 Transformer in the VIC region was scheduled from 0600 hrs 25/07/2024 to 1800 hrs 25/07/2024.

The outage has been completed and Heywood M1 Transformer returned to service at 1550 hrs 25/07/2024

Constraint set(s) revoked: V-HYTX_M12

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Keilor - Sth Morang 500kV Line - VIC region - 25/07/2024

A planned outage of Keilor - Sth Morang 500kV Line ] in the VIC region was scheduled from 0700 hrs 25/07/2024 to 1630 hrs 25/07/2024.

The outage has been completed and Keilor - Sth Morang 500kV Line returned to service at 1450 hrs 25/07/2024

Constraint set(s) revoked: V-KTSM_R

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Heywood - South East 1 275 kV Line - SA region - 22/07/2024

A planned outage of Heywood - South East 1 275 kV Line in the SA region was scheduled from 0930 hrs 22/07/2024 to 1700 hrs 22/07/2024.

The outage has been cancelled.

Constraint set(s) revoked:
I-HYSE
I-VS+LKB_050
I-VS_050
S-SECB6611_10
S-SE_1CP

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Armidale Coffs Harbour 96C 132kV LINE - NSW region - 20/07/2024

At 1422 hrs 20/07/2024 there was an unplanned outage of Armidale Coffs Harbour 96C 132kV LINE.

The following constraint set(s) invoked at 1430 hrs 20/07/2024
N-ARCH_96C

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

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Mitchell Singleton 95X 132kV LINE- NSW region - 20/07/2024

At 1117 hrs 20/07/2024 there was an unplanned outage of Mitchell Singleton 95X 132kV LINE.

The following constraint set(s) invoked at 1250 hrs 20/07/2024
N-NIL_RBKU_CLOSED
N-LDTM_82_CL

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

AEMO ELECTRICITY MARKET NOTICE

Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).

Refer AEMO Electricity Market Notice 117372

AEMO has been notified that the controls to vary Directlink output are now available.

Constraint set I-CTRL_ISSUE_TE revoked at 1835 hrs.

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Heywood interconnector - SA and Vic regions- 19/07/2024

Refer to reclassification Market notice 117373

The following constraint set(s) invoked at 1740 hrs 19/07/2024
I-SV_250 , I-VS_250

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

Manager NEM Real Time Operations

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)

AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.

Constraint set I-CTRL_ISSUE_TE invoked from 1640 hrs.

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

N-Q-MNSP1


Manager NEM Real Time Operations