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Non-credible contingency event - SA region - 25/03/2024
Non-credible contingency event - SA region - 25/03/2024
At 0810 hrs there was an unplanned outage of the following elemets:
Davenport - Brinkworth 275 kV line
Brinkworth No 3 275/132 kV transformer
Brinkworth - Templers West 275 kV line
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 - 14/03/2024
Update - Non-credible contingency event - SA region - 14/03/2024
Refer AEMO Electricity Market Notice 115624
At 1635 hrs the Tungkillo - Robertstown No. 1 275 kV Line and 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 - 14/03/2024
Non-credible contingency event - SA region - 14/03/2024
At 2307 hrs the Tungkillo - Robertstown No. 1 275 kV Line and 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 - QLD region - 12/03/2024
Non-credible contingency event - QLD region - 12/03/2024
At 0249 hrs the Strathmore - Clare South No 7208 132KV Line opened at Strathmore 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 - 28/02/2024
Non-credible contingency event - QLD region - 28/02/2024
At 1029 hrs the Tully - Cardwell No.7389 132 kV Line tripped and auto reclosed and Ross - Woree No. 8905 275 kV 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: Significant power system event - Victoria Region - Hazelwood transformers and Hazelwood PS - Jeeralang No 2 220kV -13/02/2024
Update - Significant power system event - 13/02/2024
Refer AEMO Electricity Market Notices 114685
At 1247 hrs 15/02/2024 the Hazelwood PS - Jeeralang No 2 220kV line was returned to service in the Victoria region
All of the equipment has now been returned to service.
The cause of this significant power system 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: Significant power system event - Victoria Region - Hazelwood transformers -13/02/2024
At 1827 hrs 13/02/2024 At Hazelwood terminal station in the Victoria region, the following plant was returned to service.
The No1 500 kV / 220 kV transformer
The No2 500 kV / 220 kV transformer
The No3 500 kV / 220 kV transformer
The No4 500 kV / 220 kV transformer
The Jeeralang - Hazelwood No 2 220kV line remains out of service.
Refer to Network outage scheduler (NOS) for further details.
Refer Market notice 114641 and 114643
This Market Notice is issued in accordance with NER clause 4.8.3.
Manager NEM Real Time Operations
Significant power system event - Victoria Region - Hazelwood transformers -13/02/2024
At 1543 hrs 13/02/2024 At Hazelwood terminal station in the Victoria region the following plant tripped.
The No1 500 kV / 220 kV transformer
The No2 500 kV / 220 kV transformer
The No3 500 kV / 220 kV transformer
The No4 500 kV / 220 kV transformer
The Jeeralang Hazelwood No2 220kV line.
Refer Market notice 114641
Updates will be provided as additional information becomes available.
This Market Notice is issued in accordance with NER clause 4.8.3.
Manager NEM Real Time Operations
Non-credible contingency event - TAS region - 13/02/2024
Non-credible contingency event - TAS region - 13/02/2024
At 1602 hrs the Norwood -Scottsdale 110kV line and the Norwood - Scottsdale -Derby 110kV line tripped.
AEMO did not instruct load shedding.
AEMO has been advised 8MW of electrical load and 24MW of generation has been disconnected.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations