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76538POWER SYSTEM EVENTS04/08/2020 06:34:20 PM
Non-credible contingency event - Tas region - 04/08/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Tas region - 04/08/2020
At 1819 hrs the Creek Road - North Hobart No 1 and 2 110kV lines 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 - 04/08/2020
At 1819 hrs the Creek Road - North Hobart No 1 and 2 110kV lines 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
76316POWER SYSTEM EVENTS16/07/2020 09:42:04 AM
Non-credible contingency event - Tas region - 16/07/2020
AEMO ELECTRICITY MARKET NOTICE.
At 0842 hrs Bell Bay Aluminium Potline 2 and Potline 3 tripped (Tas region).
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
At 0842 hrs Bell Bay Aluminium Potline 2 and Potline 3 tripped (Tas region).
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
75976POWER SYSTEM EVENTS14/06/2020 10:52:11 AM
AEMO ELECTRICITY MARKET NOTICE.
Update -Non-credible contingency event - Vic region - 14/06/2020
Refer AEMO ELECTRICITY MARKET NOTICE 75974
At 0647 hrs the Eildom - Mt Beauty No 1 220 kV Line tripped at Eildon end only.
Line remains out of service. Refer to NOS for further details
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 - Vic region - 14/06/2020
AEMO ELECTRICITY MARKET NOTICE.
Update -Non-credible contingency event - Vic region - 14/06/2020
Refer AEMO ELECTRICITY MARKET NOTICE 75974
At 0647 hrs the Eildom - Mt Beauty No 1 220 kV Line tripped at Eildon end only.
Line remains out of service. Refer to NOS for further details
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
75974POWER SYSTEM EVENTS14/06/2020 08:40:54 AM
Non-credible contingency event - VIC region - 14/06/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - VIC region - 14/06/2020
At 0647 hrs the Eildon - Mt Beauty 1 220 kV Line tripped at Eildon 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 and is under investigation.
Manager NEM Real Time Operations
Non-credible contingency event - VIC region - 14/06/2020
At 0647 hrs the Eildon - Mt Beauty 1 220 kV Line tripped at Eildon 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 and is under investigation.
Manager NEM Real Time Operations
75941POWER SYSTEM EVENTS10/06/2020 05:23:13 PM
Update - Non-credible contingency event - NSW region - 07/06/2020
AEMO ELECTRICITY MARKET NOTICE.
Refer AEMO ELECTRICITY MARKET NOTICE 75880
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
Refer AEMO ELECTRICITY MARKET NOTICE 75880
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
75880POWER SYSTEM EVENTS07/06/2020 02:35:24 PM
Non-credible contingency event - NSW region - 07/06/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 07/06/2020
At 1333 hrs the Vales Pt Unit 5 and the Vales Pt Unit 6 both 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 - NSW region - 07/06/2020
At 1333 hrs the Vales Pt Unit 5 and the Vales Pt Unit 6 both 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
75717POWER SYSTEM EVENTS14/05/2020 09:12:55 AM
Update - Non-credible contingency event - NSW Region - 14/05/2020
AEMO ELECTRICITY MARKET NOTICE.
Refer AEMO ELECTRICITY MARKET NOTICE MN 75716
At 0822 hrs the Burrinjuck 132 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
Refer AEMO ELECTRICITY MARKET NOTICE MN 75716
At 0822 hrs the Burrinjuck 132 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
75716POWER SYSTEM EVENTS14/05/2020 05:25:16 AM
Non-credible contingency event - NSW Region - 14/05/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW Region - 14/05/2020
At 0439 hrs the Burrinjuck 132 kV bus tripped.
With a pre-existing outage of the Gadara - Wagga 993 132 kV line, the Tumut 132 substation, the Gadara substation and the Blowering power station were disconnected.
AEMO estimates 60 MW of local load lost.
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.
Constraint set N-BLOWERNG_ZERO invoked.
Manager NEM Real Time Operations
Non-credible contingency event - NSW Region - 14/05/2020
At 0439 hrs the Burrinjuck 132 kV bus tripped.
With a pre-existing outage of the Gadara - Wagga 993 132 kV line, the Tumut 132 substation, the Gadara substation and the Blowering power station were disconnected.
AEMO estimates 60 MW of local load lost.
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.
Constraint set N-BLOWERNG_ZERO invoked.
Manager NEM Real Time Operations
75619POWER SYSTEM EVENTS08/05/2020 12:02:51 PM
Non-credible contingency event - Qld region - 08/05/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 08/05/2020
At 1112 hrs the Kamerunga-Barron George 7184 132 kV Line and the Kamerunga-Barron George 7143 132 kV Line 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
Non-credible contingency event - Qld region - 08/05/2020
At 1112 hrs the Kamerunga-Barron George 7184 132 kV Line and the Kamerunga-Barron George 7143 132 kV Line 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