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Inter-regional transfer limit variation - Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines - NSW region - 04/07/2024
Inter-regional transfer limit variation - Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines - NSW region - 04/07/2024
A planned outage of Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines in the NSW region was scheduled from 0800 hrs 03/07/2024 to 1700 hrs 04/07/2024.
The outage has been completed and Crookwell- Gullen Range 3H and Bannaby - Crookwell 61 330 kV lines returned to service at 1405 hrs 04/07/2024
Constraint set(s) revoked: N-BYCR_61_15M and N-CRGR_3H
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
Inter-regional transfer limit variation - [outage element] - NSW region - 04/07/2024
Inter-regional transfer limit variation - Lismore - Dunoon 9U7 132 kV line - NSW region - 04/07/2024
A planned outage of Lismore - Dunoon 9U7 132 kV line in the NSW region was scheduled from 0732 hrs 02/07/2024 to 1700 hrs 19/07/2024.
The outage has been completed and Lismore - Dunoon 9U7 132 kV line returned to service at 1105 hrs 04/07/2024
Constraint set(s) revoked: N-LSDU_9U6
This constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Dumaresq No. 1 330kV SVC - NSW region - 28/06/2024
Inter-regional transfer limit variation - Dumaresq No. 1 330kV SVC- NSW region - 28/06/2024
At 1649 hrs 28/06/2024 there was a short notice outage of the Dumaresq No. 1 330kV SVC.
The following constraint set invoked at 1650 hrs 28/06/2024
N-DM_SVC
This constraint set 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
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024
Cancellation - Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024
Refer AEMO Electricity Market Notice 117239.
Constraint set CA_SYDS_5590C0E2 revoked 1530 hrs.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Liddell to Tomago 82 330kV Line - NSW region - 28/06/2024
Inter-regional transfer limit variation - Liddell to Tomago 82 330kV Line - NSW region - 28/06/2024
At 1407 hrs 28/06/2024 there was an unplanned outage of Liddell to Tomago 82 330kV Line.
The following constraint set invoked at 1415 hrs 28/06/2024
N-LDTM_82_OPEN
This constraint set 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
Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 28/06/2024
In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_5590C0E2 from 1355hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
V-S-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
Fast Frequency Response Market - Dispatch of R1 and L1 FCAS in the SA region during island conditions from 1 July 2024
From 1 July 2024 AEMO will dispatch R1 and L1 FCAS locally in the SA region during conditions of actual islanding of the SA region.
This follows the end of contracts for Fast Frequency Response (FFR) in the SA region.
The dispatch of R1 and L1 FCAS under these island conditions will not be capped.
These changes are only applicable for conditions of actual SA islanding from the rest of the NEM.
No other changes to the dispatch of R1 and L1 FCAS will be made on this date.
For information on the Fast Frequency Response (FFR) initiative please visit the website at: https://www.aemo.com.au/initiatives/major-programs/fast-frequency-response
Andrew Groom
AEMO Operations
Non-credible contingency event - NSW region - 27/06/2024
Non-credible contingency event - NSW region - 27/06/2024
At 0845 hrs the Sydney West No.1 330 kV SVC tripped during switching for planned outage of Sydney West No.4 330/132 kV transformer.
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
Inter-regional transfer limit variation - Heywood - South East No 2 275 kV Line - SA region - 26/06/2024
Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/06/2024
A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0815 hrs 26/06/2024 to 1930 hrs 26/06/2024.
The outage has been completed and Heywood - South East No 2 275 kV Line returned to service at 1410 hrs 26/06/2024
Constraint set(s) revoked:
I-HYSE
I-VS_050
I-VS+LKB_050
Manager NEM Real Time Operations