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Non-credible contingency event - VIC region - 03/11/2023
Non-credible contingency event - VIC region - 03/11/2023
At 0412 hrs the Mount Beauty No.2 220kV 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 - TAS region - 21/10/2023
Non-credible contingency event - TAS region - 21/10/2023
At 2029 hrs the Wadamana Tungatina No.1 and No.2 line tripped and auto reclosed.
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 - 21/10/2023
Update - Non-credible contingency event - QLD region - 21/10/2023
Refer AEMO Electricity Market Notice 110340
At 0208 hrs the Ross No 2 275kV Bus 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 - 21/10/2023
Update Non-credible contingency event - QLD region - 21/10/2023
Refer to market notice 110339.
At 0133 hrs the Ross No 2 275kV Bus tripped.
AEMO did not instruct load shedding.
AEMO has been advised of disconnection of 218 MW bulk electrical load.
The 132kV network between Clare South and Tully has been disconnected
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 - 21/10/2023
Non-credible contingency event - QLD region - 21/10/2023
At 0133 hrs the Ross No 2 275kV 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 - VIC region - 19/10/2023
Non-credible contingency event - VIC region - 19/10/2023
At 1437 hrs the Moorabool No.2 500kV 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 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 - SA region - 17/10/2023
Update - Non-credible contingency event - SA region - 17/10/2023
Refer AEMO Electricity Market Notice 110289
At 0845 hrs the Penola_W Kincraig 132kV line 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
Non-credible contingency event - SA region - 17/10/2023
Non-credible contingency event - SA region - 17/10/2023
At 0711 hrs the Penola_W Kincraig 132kV line offloaded at one end only, during switching for planned outage of Kincraig No.1 132/33/11kV transformer.
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 - SA region - 13/10/2023
Non-credible contingency event - SA region - 13/10/2023
At 1402 hrs, the Para 6543 275kV CB tripped offloading the Para No.2 275/66kV transformer at one 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.
Manager NEM Real Time Operations