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Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 20/08/2024 20:56 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non Credible Contingency Event: Trip of Golden Plains No. 1 220 kV bus - Vic region - 20/08/2024
Reclassification of a Non Credible Contingency Event: Trip of Golden Plains No. 1 220 kV bus - Vic region - 20/08/2024
Based on advice from the TNSP, AEMO has reclassified the trip of Golden Plains No. 1 220 kV bus as a credible contingency event.
Constraint Set invoked: NIL
Duration: 20/08/2024 1750 hrs until further notice
Manager NEM Real Time Operations
CHG0095840 | Production | AEMO will be undertaking maintenance activities on the DWGM system
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Cohesity
Change Title: AEMO will be undertaking maintenance activities on the DWGM system
Change Start Date & Time: 20/08/2024 18:30:35 AEST
Change End Date & Time: 21/08/2024 01:30:35 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements:
AEMO will be undertaking maintenance activities on the DWGM system. Whilst no outage is expected there is potential for transient performance degradation during the change.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?d=pp_services_status for any planned/unplanned maintenance activities .
Cancellation - Special Reclassification of Transmission Equipment during lightning: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers - Qld region
Cancellation of the reclassification of a Non-Credible contingency event as a Credible contingency event.
AEMO no longer considers the H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers to be vulnerable due to lightning. Accordingly, its classification has reverted to a non-credible contingency event.
Region: Qld
Transmission Equipment: H14 Middle Ridge No. 2 and No. 3 275/110 kV transformers.
Constraint(s): NIL
Cancellation time: 1500 hrs
Refer AEMO Electricity Market Notice 112974
Manager NEM Real Time Operations
CHG0091298 | Completed | Production | Change to MarketNet SSL VPN
Notification issued to: Market Notice
Notification Type: Completed
Change Type: Normal
Service/Component: Market Network
Change Title: Change to MarketNet SSL VPN
Support Information: Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
Inter-regional transfer limit variation - Kerang to Wemen 220kV line - VIC region - 20/08/2024
Inter-regional transfer limit variation - Kerang to Wemen 220kV line - VIC region - 20/08/2024
A planned outage of Kerang to Wemen 220kV line in the VIC region was scheduled from 0600 hrs 20/08/2024 to 1930 hrs 20/08/2024.
The outage has been completed and Kerang to Wemen 220kV line returned to service at 0925 hrs 20/08/2024
Constraint set revoked: V-KGWT
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Murraylink
Inter-Regional Transfer limit variation - Murraylink
There has been an unplanned outage of the Murraylink interconnector.
The following constraint set was invoked at 2155 hrs 19/08/2024
I-MURRAYLINK
The constraint set contains the following interconnector on the left hand side.
V-S-MNSP1,VIC1-NSW1
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
CHG0093465 | Production | AEMO will be undertaking maintenance activities on the STTM system.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Cohesity
Change Title: AEMO will be undertaking maintenance activities on the STTM system.
Change Start Date & Time: 20/08/2024 18:31:12 AEST
Change End Date & Time: 21/08/2024 08:31:12 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: AEMO will be undertaking maintenance activities on the STTM system. Whilst no outage is expected there is potential for transient performance degradation during the change.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?d=pp_services_status for any planned/unplanned maintenance activities .
CHG0095739 | Production | AEMO will be undertaking maintenance activities on the system.
Notification issued to: Market Notice
Notification Type: Initial
Change Type: Normal
Service/ Component: Cohesity
Change Title: AEMO will be undertaking maintenance activities on the system.
Change Start Date & Time: 20/08/2024 13:00:19 AEST
Change End Date & Time: 20/08/2024 16:00:19 AEST
Outage Start Date & Time:
Outage End Date & Time:
Environment: Production
Participant Impact and Requirements: AEMO will be undertaking maintenance activities on the NEMSETTLEMENTSR system. Whilst no outage is expected there is potential for transient performance degradation during the change.
Support Information:
Report any impacts to the AEMO Information and Support Hub or call 1300 236 600.
Please refer to https://aemo.service-now.com/participantportal?d=pp_services_status for any planned/unplanned maintenance activities .