Filter by category
Filter by Date
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
Update - Non-credible contingency event - SA region - 12/10/2023
Update - Non-credible contingency event - SA region - 12/10/2023
Refer AEMO Electricity Market Notice 110232
At 1609 hrs the South East Nos 1 and 2 SVCs were 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 - 12/10/2023
Non-credible contingency event - SA region - 12/10/2023
At 1524 hrs the South East No1 SVC and the South East No2 SVC tripped.
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 - 14/09/2023
Update - Non-credible contingency event - SA region - 14/09/2023
Refer AEMO Electricity Market Notice 109807
At 1920 hrs the South East-Mayura-Snuggery 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 - 14/09/2023
Non-credible contingency event - SA region - 14/09/2023
At 1450 hrs the Snuggery CBs 6131 and 6028 opened automatically, offloading the South East-Mayura-Snuggery 132kV LINE at the Snuggery 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
Non-credible contingency event - QLD region - 13/09/2023
Non-credible contingency event - QLD region - 13/09/2023
At 1204 hrs the Ross No.1 275 kV SVC tripped during switching for the planned outage of Ross No.4 275/132 kV 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
Update - Non-credible contingency event - SA region - 04/09/2023
Update - Non-credible contingency event - SA region - 04/09/2023
Refer AEMO ELECTRICITY MARKET NOTICE MN 109561
At 1341 hrs the Tungkillo East 275 KV 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 - 04/09/2023
Non-credible contingency event - SA region - 04/09/2023
At 1252 hrs the Tungkillo East 275 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 - TAS region - 25/08/2023
Non-credible contingency event - TAS region - 25/08/2023
At 1331 hrs the Gordon C 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 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