Filter by:
Filter by category
Filter by Date
From
To
61649POWER SYSTEM EVENTS03/03/2018 11:09:03 PM
Non-credible contingency event - QLD Region - 3 March 2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - QLD Region - 3 March 2018
At 2240 hrs the Collinsville North - Proserpine (7126) 132kV Line opened automatically at Collinsville North end only
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 - 3 March 2018
At 2240 hrs the Collinsville North - Proserpine (7126) 132kV Line opened automatically at Collinsville North end only
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
61604POWER SYSTEM EVENTS28/02/2018 03:06:19 PM
Non-credible contingency event - Tas region - 28/02/18
AEMO ELECTRICITY MARKET NOTICE
At 1443 hrs the Tungatina - New Norfolk tee Meadowbank No. 1 and No. 2 110 kV Lines tripped.
AEMO did not instruct load shedding.
AEMO has been advised there was a disconnection of 3 MW of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
At 1443 hrs the Tungatina - New Norfolk tee Meadowbank No. 1 and No. 2 110 kV Lines tripped.
AEMO did not instruct load shedding.
AEMO has been advised there was a disconnection of 3 MW of bulk electrical load.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
61565POWER SYSTEM EVENTS26/02/2018 06:48:57 PM
Non-credible contingency event - Qld Region - 26/02/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - Qld Region - 26/02/2018
At 1548 hrs the Goonyella - North Goonyella Tee - Stoney Creek No. 7122 and the Goonyella - Newlands No. 7155 132 kV Lines 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 suspected as a lightning strike.
Manager NEM Real Time Operations
Non-credible contingency event - Qld Region - 26/02/2018
At 1548 hrs the Goonyella - North Goonyella Tee - Stoney Creek No. 7122 and the Goonyella - Newlands No. 7155 132 kV Lines 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 suspected as a lightning strike.
Manager NEM Real Time Operations
61407POWER SYSTEM EVENTS20/02/2018 09:10:41 AM
Update - Non-credible contingency event - NSW region - 20/02/2018
AEMO ELECTRICITY MARKET NOTICE
Update - Non-credible contingency event - NSW region - 20/02/2018
Update to MN 61401
At 0858 hrs the Tamworth No3 330 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
Update - Non-credible contingency event - NSW region - 20/02/2018
Update to MN 61401
At 0858 hrs the Tamworth No3 330 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
61401POWER SYSTEM EVENTS20/02/2018 07:48:51 AM
Non-credible contingency event - NSW region - 20/02/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - NSW region - 20/02/2018
At 0735 hrs the Tamworth No3 330 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 - NSW region - 20/02/2018
At 0735 hrs the Tamworth No3 330 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
61368POWER SYSTEM EVENTS18/02/2018 12:06:18 PM
Update - Non-credible contingency event - Qld region - Friday 16th February 2018
AEMO ELECTRICITY MARKET NOTICE
Update - Non-credible contingency event - Qld region - Friday 16th February 2018
Refer AEMO Electricity Market Notice 61354
At 2111 hrs 16/02/2018 there was an unplanned outage of the following plant.
H67 Calliope River - H8 Boyne Island 7145 132kV line
H8 Boyne Island Potline No 3
H7 Gladstone Unit 1
The cause of this non credible contingency event has been evaluated. Based on information available, AEMO is not satisfied that another occurrence of a multiple trip of some elements associated with this event is unlikely.
AEMO will reclassify the following equipment associated with this event as a credible contingency event.
H67 Calliope River - H8 Boyne Island 7145 132kV Transmission line and Gladstone Unit 1.
Manager NEM Real Time Operations
Update - Non-credible contingency event - Qld region - Friday 16th February 2018
Refer AEMO Electricity Market Notice 61354
At 2111 hrs 16/02/2018 there was an unplanned outage of the following plant.
H67 Calliope River - H8 Boyne Island 7145 132kV line
H8 Boyne Island Potline No 3
H7 Gladstone Unit 1
The cause of this non credible contingency event has been evaluated. Based on information available, AEMO is not satisfied that another occurrence of a multiple trip of some elements associated with this event is unlikely.
AEMO will reclassify the following equipment associated with this event as a credible contingency event.
H67 Calliope River - H8 Boyne Island 7145 132kV Transmission line and Gladstone Unit 1.
Manager NEM Real Time Operations
61363POWER SYSTEM EVENTS17/02/2018 07:42:37 PM
Non-credible contingency event - Qld region - 17/02/18
AEMO ELECTRICITY MARKET NOTICE
At 1926 hrs Chalumbin No. 1 275 kV bus, Chalumbin - Woree No. 876 275 kV Line and Chalumbin - Woree No. 877 275 kV Line tripped.
Simultaneously with this event AEMO has observed a reduction in the electrical demand in the Qld region of approximately 230 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
At 1926 hrs Chalumbin No. 1 275 kV bus, Chalumbin - Woree No. 876 275 kV Line and Chalumbin - Woree No. 877 275 kV Line tripped.
Simultaneously with this event AEMO has observed a reduction in the electrical demand in the Qld region of approximately 230 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
61354POWER SYSTEM EVENTS17/02/2018 09:41:08 AM
Correction - Non-credible contingency event - Qld region - 16/02/2018
AEMO ELECTRICITY MARKET NOTICE
Correction - Non-credible contingency event - Qld region - 16/02/2018
Refer AEMO Electricity Market notice 61345
At 2111 hrs 16/02/2018 there was an unplanned outage of the following plant.
H67 Calliope River - H8 Boyne Island 7145 132kV line
H8 Boyne Island Potline No 3
H7 Gladstone Unit 1
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
Correction - Non-credible contingency event - Qld region - 16/02/2018
Refer AEMO Electricity Market notice 61345
At 2111 hrs 16/02/2018 there was an unplanned outage of the following plant.
H67 Calliope River - H8 Boyne Island 7145 132kV line
H8 Boyne Island Potline No 3
H7 Gladstone Unit 1
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
61345POWER SYSTEM EVENTS16/02/2018 09:36:31 PM
Non-credible contingency event - Qld region - 16/02/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - Qld region - 16/02/2018
At 2111 hrs 16/02/2018 there was an unplanned outage of the following plant.
H67 Calliope River - H8 Boyne Island No. 7146 132kV line
H8 Boyne Island Potline 3
H7 Gladstone CB 5212
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 - Qld region - 16/02/2018
At 2111 hrs 16/02/2018 there was an unplanned outage of the following plant.
H67 Calliope River - H8 Boyne Island No. 7146 132kV line
H8 Boyne Island Potline 3
H7 Gladstone CB 5212
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