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82296POWER SYSTEM EVENTS22/01/2021 04:56:27 AM
Update - Non-credible contingency event - Qld region - 22/01/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - Qld region - 22/01/2021
Refer AEMO ELECTRICITY MARKET NOTICE 82280
At 0255 hrs the Kareeya PS Units 1, 2 and 4 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.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - Qld region - 22/01/2021
Refer AEMO ELECTRICITY MARKET NOTICE 82280
At 0255 hrs the Kareeya PS Units 1, 2 and 4 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.
AEMO will not reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
82280POWER SYSTEM EVENTS22/01/2021 03:29:10 AM
Non-credible contingency event - Qld region - 22/01/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 22/01/2021
At 0255 hrs the Kareeya PS Units 1, 2 and 4 tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage and is being investigated.
Manager NEM Real Time Operations
Non-credible contingency event - Qld region - 22/01/2021
At 0255 hrs the Kareeya PS Units 1, 2 and 4 tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage and is being investigated.
Manager NEM Real Time Operations
82184POWER SYSTEM EVENTS15/01/2021 06:48:36 PM
Update - Non-credible contingency event - NSW region -15/01/2021
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region -15/01/2021
Refer AEMO ELECTRICITY MARKET NOTICE MN 82166
At 1833 hrs the Glenn Innes - Tenterfield (96R) 132 kV Line was returned to service.
At 0947 hrs the Tenterfield - Lismore tee Casino (96L) 132 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
Update - Non-credible contingency event - NSW region -15/01/2021
Refer AEMO ELECTRICITY MARKET NOTICE MN 82166
At 1833 hrs the Glenn Innes - Tenterfield (96R) 132 kV Line was returned to service.
At 0947 hrs the Tenterfield - Lismore tee Casino (96L) 132 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
82166POWER SYSTEM EVENTS15/01/2021 08:56:46 AM
Non-credible contingency event - NSW region - 15/01/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 15/01/2021
At 0708 hrs the Glenn Innes - Tenterfield 96R 132 kV Line and the Tenterfield - Lismore tee Casino 96L 123 kV Line tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage and is being investigated.
Manager NEM Real Time Operations
Non-credible contingency event - NSW region - 15/01/2021
At 0708 hrs the Glenn Innes - Tenterfield 96R 132 kV Line and the Tenterfield - Lismore tee Casino 96L 123 kV Line tripped.
AEMO did not instruct load shedding.
The cause of this non credible contingency event is not known at this stage and is being investigated.
Manager NEM Real Time Operations
82117POWER SYSTEM EVENTS13/01/2021 11:41:24 AM
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 13/01/2021
At 1057 hrs the Callide C3 and the Callide C4 units 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 - 13/01/2021
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 13/01/2021
At 1057 hrs the Callide C3 and the Callide C4 units 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
80893POWER SYSTEM EVENTS07/12/2020 03:59:26 PM
Non-credible contingency event - Qld region - 07/12/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 07/12/2020
At 1530 hrs 8898 & 8899 Wandoan - Yuleba North 275 kV lines tripped and auto reclosed.
AEMO did not instruct load shedding.
AEMO has been advised of the disconnection of bulk electrical load of approximately 200MW.
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 - 07/12/2020
At 1530 hrs 8898 & 8899 Wandoan - Yuleba North 275 kV lines tripped and auto reclosed.
AEMO did not instruct load shedding.
AEMO has been advised of the disconnection of bulk electrical load of approximately 200MW.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
80651POWER SYSTEM EVENTS02/12/2020 05:38:01 PM
Non-credible contingency event - NSW region - 02/12/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 02/12/2020
At 1544 hrs at Canberra substation 132 kV circuit breakers 4112 and 9762 tripped.
A5 1637 hrs at Canberra substation 132 kV circuit breakers 4112 and 9762 were manually closed.
AEMO did not instruct load shedding.
AEMO has 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
Non-credible contingency event - NSW region - 02/12/2020
At 1544 hrs at Canberra substation 132 kV circuit breakers 4112 and 9762 tripped.
A5 1637 hrs at Canberra substation 132 kV circuit breakers 4112 and 9762 were manually closed.
AEMO did not instruct load shedding.
AEMO has 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
80258POWER SYSTEM EVENTS23/11/2020 10:24:11 AM
Non-credible contingency event - Victoria region - 23/11/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Victoria region - 23/11/2020
At 0933 hrs at the Wodonga terminal station the No.1 and No.2 330/66/22 kV transformers tripped.
As a consequence of the protection operation the Dederang - Wodonga and the Jindera - Wodonga 330kV lines were offloaded.
51 MW of local load was lost.
At 0952 hrs the Dederang - Wodonga and the Jindera - Wodonga 330kV lines were restored to service.
AEMO did not instruct load shedding.
AEMO has 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
Non-credible contingency event - Victoria region - 23/11/2020
At 0933 hrs at the Wodonga terminal station the No.1 and No.2 330/66/22 kV transformers tripped.
As a consequence of the protection operation the Dederang - Wodonga and the Jindera - Wodonga 330kV lines were offloaded.
51 MW of local load was lost.
At 0952 hrs the Dederang - Wodonga and the Jindera - Wodonga 330kV lines were restored to service.
AEMO did not instruct load shedding.
AEMO has 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
80181POWER SYSTEM EVENTS21/11/2020 01:09:19 AM
Correction - Non-credible contingency event - Vic region - 27/10/2020
AEMO ELECTRICITY MARKET NOTICE.
Correction to MN 80180 (date 21/11/2020, should read 20/11/2020)
Update - Non-credible contingency event - Vic region - 27/10/2020
Refer AEMO ELECTRICITY MARKET NOTICE MN79309
At 1022 hrs 27/10/2020 the Newport D Power Station No 2 220 kV Busbar tripped.
At 1019 hrs 20/11/2020 the Newport D Power Station No 2 220 kV Busbar 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
Correction to MN 80180 (date 21/11/2020, should read 20/11/2020)
Update - Non-credible contingency event - Vic region - 27/10/2020
Refer AEMO ELECTRICITY MARKET NOTICE MN79309
At 1022 hrs 27/10/2020 the Newport D Power Station No 2 220 kV Busbar tripped.
At 1019 hrs 20/11/2020 the Newport D Power Station No 2 220 kV Busbar 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