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Reclassification of a Non-Credible Contingency Event: Gordon - Chapel St No 1 220kV line and Gordon - Chapel St No 2 220kV 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: Gordon - Chapel St No 1 220kV and Gordon - Chapel St No 2 220kV
Duration: 23/10/2024 18:41 until further notice
Constraint set(s) invoked:
F-T-CSGO Constraint set contains the following interconnector(s) on the left hand side:
T-V-MNSP1
T-CSGO_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
NON-CONFORMANCE Region SA1 Wednesday, 23 October 2024
NON-CONFORMANCE SA1 Region Wednesday, 23 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: DALNTH1
Duration: 23/10/2024 12:15 to 23/10/2024 12:25
Amount: 14 MW
Constraint: NC-S_DALNTH1
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - constraint automation to manage Power System Security in VIC region - 23/10/2024
In order to maintain the power system in a secure operating state in the VIC region, AEMO has invoked automated constraint set CA_SYDS_562A9792 from 0635 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
NON-CONFORMANCE Region QLD1 Tuesday, 22 October 2024
NON-CONFORMANCE QLD1 Region Tuesday, 22 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: YABULU2
Duration: 22/10/2024 16:55 to 22/10/2024 17:05
Amount: -20 MW
Constraint: NC-Q_YABULU2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Tuesday, 22 October 2024
NON-CONFORMANCE NSW1 Region Tuesday, 22 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: RIVNB2
Duration: 22/10/2024 15:00 to 22/10/2024 15:05
Amount: 18 MW
Constraint: NC-N_RIVNB2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region NSW1 Tuesday, 22 October 2024
NON-CONFORMANCE NSW1 Region Tuesday, 22 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: DPNTB1
Duration: 22/10/2024 14:55 to 22/10/2024 15:05
Amount: 9 MW
Constraint: NC-N_DPNTB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region SA1 Monday, 21 October 2024
NON-CONFORMANCE SA1 Region Monday, 21 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: BLYTHB1
Duration: 21/10/2024 10:55 to 21/10/2024 11:05
Amount: 50 MW
Constraint: NC-S_BLYTHB1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE Region VIC1 Monday, 21 October 2024
NON-CONFORMANCE VIC1 Region Monday, 21 October 2024
AEMO has declared the following unit as non-conforming under clause 3.8.23 of the National Electricity Rules:
Unit: GLRWNSF1
Duration: 21/10/2024 09:50 to 21/10/2024 10:25
Amount: 62 MW
Constraint: NC-V_GLRWNSF1
Auto-generated on behalf of Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tamworth No 1 330 kV bus and Tamworth - Armidale No. 86 330 kV Line - NSW region - 19/10/2024
Tamworth No 1 330 kV bus and Tamworth - Armidale No. 86 330 kV Line - NSW region - 19/10/2024
A planned outage of Tamworth No 1 330 kV bus in the NSW region was scheduled from 1100 hrs 18/10/2024 to 1700 hrs 20/10/2024.
A planned outage of Tamworth - Armidale No. 86 330 kV Line in the NSW region was scheduled from 0500 hrs 09/10/2024 to 1700 hrs 20/10/2024.
The outage has been completed by 1250 hrs 19/10/2024.
Constraint set(s) invoked:
N-ARTW_86
N-LDTW_84
N-TW_SVC
N-TW_330_BUS1
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1-QLD1
T-V-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations