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Update - Non-credible contingency event - Tas region - 05/06/2022
Update - Non-credible contingency event - Tas region - 05/06/2022
Refer AEMO ELECTRICITY MARKET NOTICE 96781
At 1758 hrs the Gordon - Chapel Street No. 2 220 kV 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 - Tas region - 05/06/2022
Non-credible contingency event - Tas region - 05/06/2022
At 1103 hrs the Gordon - Chapel Street No. 2 220 kV Line tripped and at the same time there was a reduction of approximately 70 MW of industrial load in Tasmania.
AEMO did not instruct load shedding.
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 - 25/05/2022
Non-credible contingency event - NSW region - 25/05/2022
At 1250 hrs the Waratah West B 330kV 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 - TAS region - 12/05/2022
Update - Non-credible contingency event - TAS region - 12/05/2022
Refer AEMO ELECTRICITY MARKET NOTICE MN 96284
At 1315 hrs 12/05/2022, the Gordon power station generators No1, No2 and No3 tripped from a total of 355 MW.
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 - TAS region - 12/05/2022
Non-credible contingency event - TAS region - 12/05/2022
At 1315 hrs The Gordon power station generators No1, No2 and No3 tripped from a total of 355 MW.
AEMO did not instruct load shedding.
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 - 12/05/2022
Non-credible contingency event - SA region - 12/05/2022
At 1239 hrs The Roseworthy Templers 132 kV line opened at Templers end only
AEMO did not instruct load shedding.
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 - 10/05/2022
Non-credible contingency event - Vic region - 10/05/2022
At 1355 hrs the Terang No. 2 220 kV Bus tripped. The bus was returned to service at 1418 hrs.
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 - Tas region - 06/05/2022
Update - Non-credible contingency event - Tas region - 06/05/2022
Refer AEMO ELECTRICITY MARKET NOTICE MN96114
At 1829 hrs the Chapel St - Electrona - Tee Kingston 110 kV 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 - Tas region - 06/05/2022
Non-credible contingency event - Tas region - 06/05/2022
At 0751 hrs the Chapel St - Electrona - Tee Kingston 110 kV Line and the Chapel St - Knights Road - Tee Kingston 110 kV tripped.
AEMO did not instruct load shedding.
AEMO has been advised approx 50 MW disconnection of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations