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Inter-regional transfer limit variation - Keilor to Sth Morang 500kV Line - VIC region - 04/08/2024
Inter-regional transfer limit variation - Keilor to Sth Morang 500kV Line - VIC region - 04/08/2024
A planned outage of Keilor to Sth Morang 500kV Line in the VIC region was scheduled from 1000 hrs 04/08/2024 to 1300 hrs 04/08/2024.
The outage has been completed and Keilor to Sth Morang 500kV Line returned to service at 1050 hrs 04/08/2024
Constraint set(s) revoked: V-KTSM_R
Manager NEM Real Time Operations
Increase to QNI limit to next hold point of 1400 MW Qld to NSW
Refer to market notices 117060.
AEMO, TransGrid, Powerlink have reviewed the test results following the QNI minor testing on 19th June 2024. The next hold point can now be released.
The hold point of 1400 MW from Qld to NSW will be implemented as of 1000 hrs 31st July 2024.
Please also refer to the published formal QNI minor testing information at the following link:
https://www.aemo.com.au/consultations/current-and-closed-consultations/qld-to-nsw-interconnector-qni-upgrade
Ben Blake
AEMO Operations
Non-credible contingency event - QLD region - 30/07/2024
Non-credible contingency event - QLD region - 30/07/2024
At 0537 hrs the Darling Downs Power Station GT1, GT3 and and the steam turbine tripped from 484 MW.
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
Update - Non-credible contingency event - QLD region - 27/07/2024
Update - Non-credible contingency event - QLD region - 27/07/2024
Refer AEMO Electricity Market Notice 117487
At 1702 hrs the H38 Goodna No. 2 275kV Bus and the H38 Goodna No. 1 275/132kV transformer was returned to service.
The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood - South East No 2 275 kV Line - SA region - 26/07/2024
Inter-regional transfer limit variation -Heywood - South East No 2 275 kV Line SA region - 26/07/2024
A planned outage of Heywood - South East No 2 275 kV Line in the SA region was scheduled from 0830 hrs 26/07/2024 to 1730 hrs 28/07/2024.
The outage has been extended until 1200 hrs 29/07/2024
Constraint set(s) invoked:
I-HYSE
I-VS_050
I-VS+LKB_050
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Correction - Non-credible contingency event - QLD region - 27/07/2024
Correction to Market Notice 117486
Non-credible contingency event - QLD region - 27/07/2024
At 0951 hrs the H38 Goodna No. 2 275kV Bus and the H38 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
Non-credible contingency event - QLD region - 27/07/2024
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
Network Augmentation Commissioned - VIC Region - 30/07/2024
Network Augmentation Commissioned - VIC Region - 30/07/2024
Cressy Terminal Station has been cut into the existing Moorabool - Mortlake No.2 500 kV line to form the following circuits:
Cressy - Mortlake No.2 500 kV line
Cressy - Moorabool No.2 500 kV line
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Heywood M1 Transformer - VIC region - 25/07/2024
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