Filter by:
Filter by category
Filter by Date
From
To
90122POWER SYSTEM EVENTS01/09/2021 11:37:19 AM
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - QLD region - 31/08/2021
Refer AEMO ELECTRICITY MARKET NOTICE MN 90050
At 0305 hrs 31/08/2021 the T209 Bluff No 1 132 kV SVC was returned to service.
At 1100 hrs 01/09/2021 the T32 Blackwater No 1 132 kV SVC 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
Update - Non-credible contingency event - QLD region - 31/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - QLD region - 31/08/2021
Refer AEMO ELECTRICITY MARKET NOTICE MN 90050
At 0305 hrs 31/08/2021 the T209 Bluff No 1 132 kV SVC was returned to service.
At 1100 hrs 01/09/2021 the T32 Blackwater No 1 132 kV SVC 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
90094POWER SYSTEM EVENTS31/08/2021 06:00:03 PM
Update - Non-credible contingency event - NSW Region - 31/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW Region - 31/08/2021
Refer AEMO Electricity Market Notice 90077
At 1140 hrs the Eraring main 500 kV bus tripped.
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.
The Eraring main 500 kV bus was returned to service at 1745 hrs.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW Region - 31/08/2021
Refer AEMO Electricity Market Notice 90077
At 1140 hrs the Eraring main 500 kV bus tripped.
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.
The Eraring main 500 kV bus was returned to service at 1745 hrs.
Manager NEM Real Time Operations
90077POWER SYSTEM EVENTS31/08/2021 01:17:23 PM
Non-credible contingency event - NSW Region - 31/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW Region - 31/08/2021
At 1140 hrs the Eraring main 500 kV bus 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 - NSW Region - 31/08/2021
At 1140 hrs the Eraring main 500 kV bus 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
90050POWER SYSTEM EVENTS31/08/2021 02:33:36 AM
Non-credible contingency event - Qld Region - 31/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld Region - 31/08/2021
At 0207 hrs the T32 Blackwater No 1 132 kV SVC and T209 Bluff No 1 132 kV SVC 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 - 31/08/2021
At 0207 hrs the T32 Blackwater No 1 132 kV SVC and T209 Bluff No 1 132 kV SVC 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
89371POWER SYSTEM EVENTS10/08/2021 08:43:31 PM
Update - Non-credible contingency event - NSW region - 10/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 10/08/2021
Refer AEMO Electricity Market Notice 89358
At 0306 hrs the Bayswater - Mt Piper No 5A3 500kV line tripped and auto reclosed and the Bayswater No 4 generator tripped.
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.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 10/08/2021
Refer AEMO Electricity Market Notice 89358
At 0306 hrs the Bayswater - Mt Piper No 5A3 500kV line tripped and auto reclosed and the Bayswater No 4 generator tripped.
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.
Manager NEM Real Time Operations
89358POWER SYSTEM EVENTS10/08/2021 03:22:43 AM
Non-credible contingency event - NSW region - 10/08/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 10/08/2021
At 0306 hrs the Bayswater - Mt Piper No 5A3 500kV line tripped and auto reclosed and the Bayswater No 4 generator 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 - NSW region - 10/08/2021
At 0306 hrs the Bayswater - Mt Piper No 5A3 500kV line tripped and auto reclosed and the Bayswater No 4 generator 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
88303POWER SYSTEM EVENTS17/07/2021 12:00:27 AM
Update - Non-credible contingency event - SA region - 16/07/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - SA region - 16/07/2021
The cause of the non-credible event at 2149 hrs has been identified as lightning.
The Cherry Gardens - Tailem Bend 275 kV transmission line successfully single pole auto reclosed
The Cherry Gardens - Mount Barker South 275 kV transmission line successfully single pole auto reclosed.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - SA region - 16/07/2021
The cause of the non-credible event at 2149 hrs has been identified as lightning.
The Cherry Gardens - Tailem Bend 275 kV transmission line successfully single pole auto reclosed
The Cherry Gardens - Mount Barker South 275 kV transmission line successfully single pole auto reclosed.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
88302POWER SYSTEM EVENTS16/07/2021 11:21:36 PM
Non-credible contingency event - SA region - 16/07/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 16/07/2021
At 2149 hrs the following lines tripped in the SA region
Cherry Gardens - Tailem Bend 275 kV line
Cherry Gardens - Mount Barker South 275 kV line
Cherry Gardens - Mt Barker 132 kV line
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 has been identified.
Manager NEM Real Time Operations
Non-credible contingency event - SA region - 16/07/2021
At 2149 hrs the following lines tripped in the SA region
Cherry Gardens - Tailem Bend 275 kV line
Cherry Gardens - Mount Barker South 275 kV line
Cherry Gardens - Mt Barker 132 kV line
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 has been identified.
Manager NEM Real Time Operations
88125POWER SYSTEM EVENTS13/07/2021 05:06:09 PM
Non-credible contingency event - NSW region - 13/07/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 13/07/2021
At 1642 hrs the 88 Muswellbrook to Tamworth 330 kV line opened at the Tamworth end only.
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.
At 1644 hrs the 88 Muswellbrook to Tamworth 330 kV line was returned to service.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 13/07/2021
At 1642 hrs the 88 Muswellbrook to Tamworth 330 kV line opened at the Tamworth end only.
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.
At 1644 hrs the 88 Muswellbrook to Tamworth 330 kV line was returned to service.
Manager NEM Real Time Operations