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Non-credible contingency event - SA region - 28/11/2023
Non-credible contingency event - SA region - 28/11/2023
At 0536 hrs the Robertstown No1 syncon and the Robertstown No2 syncon tripped simultaneously.
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 - SA region - 14/11/2023
Update - Non-credible contingency event - SA region - 14/11/2023
Refer AEMO Electricity Market Notice 111252
At 1124 hrs the Para 275kV West Left 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
Non-credible contingency event - SA region - 14/11/2023
Non-credible contingency event - SA region - 14/11/2023
At 1045hrs the Para 275kV West Left 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
Update - Non-credible contingency event - VIC region - 03/11/2023
Update - Non-credible contingency event - VIC region - 03/11/2023
Refer AEMO Electricity Market Notice 110687
At 0845 hrs the Mount Beauty No.2 220kV 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
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