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Inter-regional transfer limit variation - Dapto - Marulan No. 8 330 kV Line - NSW region - 27/04/2024
Inter-regional transfer limit variation - Dapto - Marulan No. 8 330 kV Line - NSW region - 27/04/2024
At 0830 hrs 27/04/2024 there was a short notice outage of Dapto - Marulan No. 8 330 kV Line.
Constraint set(s) invoked: N-DTMN_8_15M
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
Update - Non-credible contingency event - NSW region - 26/04/2024
Update - Non-credible contingency event - NSW region - 26/04/2024
Refer AEMO Electricity Market Notice 116339.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Region: NSW
Elements: Griffith to Darlington Point 132kV line (99K) and the Darlington Point BESS
Duration: 1215 hrs 26/04/2024 until further notice
Constraint set(s) invoked: NIL
Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and line in TAS1 due to Lightning.
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: TAS1
Lines: Palmerston - Hadspen 3 & 4 110kV and
Cancellation time: 23/04/2024 23:33
Constraint set(s) revoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Refer AEMO Electricity Market Notice 116296
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 due to Lightning.
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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Cancellation time: 23/04/2024 22:33
Constraint set(s) revoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Refer AEMO Electricity Market Notice 116295
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Palmerston - Hadspen 3 & 4 110kV line and line in TAS1 due to Lightning.
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: TAS1
Lines: Palmerston - Hadspen 3 & 4 110kV and
Duration: 23/04/2024 22:28 until further notice
Constraint set(s) invoked:
T-HAPM_110_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Farrell - Reece No.1 220 kV line and Farrell - Reece No.2 220 kV line in TAS1 due to Lightning.
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: TAS1
Lines: Farrell - Reece No.1 220 kV and Farrell - Reece No.2 220 kV
Duration: 23/04/2024 21:33 until further notice
Constraint set(s) invoked:
F-T-FARE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024
Inter-regional transfer limit variation - Para No 1 SVC - SA region - 23/04/2024
At 0837 hrs 23/04/2024 there was an unplanned outage of Para No 1 SVC.
Constraint set(s) invoked: S-PA_VC1
This constraint set(s) contains equations with the following interconnectors on the LHS.
V-SA,V-S-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation -Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024
Inter-regional transfer limit variation - Liddell - Tomago 82 330kV Line - NSW region - 22/04/2024
A planned outage of Liddell - Tomago 82 330kV Line in the NSW region was scheduled from 0600 hrs 03/04/2024 to 1700 hrs 22/04/2024.
The outage has been completed and Liddell - Tomago 82 330kV Line returned to service at 1450 hrs 22/04/2024
Constraint set(s) revoked: N-LDTM_82_OPEN
Manager NEM Real Time Operations
Cancellation of the reclassification of a Non-Credible contingency event: Farrell - Sheffield Nos 1 and 2 220kV Lines line in TAS due to Bushfire.
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event due to Bushfire. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any non credible event activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: TAS
Lines: Farrell - Sheffield Nos 1 and 2 220kV Lines
Cancellation time: 13:40 hrs 22/04/2024
Constraint set(s) revoked:
T-FASH_N-2_CP4_SB
T-NIL_WCP_CLOSE
Refer AEMO Electricity Market Notice 116269
Manager NEM Real Time Operations