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62902POWER SYSTEM EVENTS22/05/2018 11:37:30 AM
Update - Non-credible contingengency event - QLD region -22/05/2018
AEMO ELECTRICITY MARKET NOTICE
Update - Non-credible contingengency event -QLD region -22/05/2018
Update to MN 62895.
At 1001 hrs at the Ross substation 275/132kV #2 #3 #4Transformers and SVC tripped out of 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 contingengency event -QLD region -22/05/2018
Update to MN 62895.
At 1001 hrs at the Ross substation 275/132kV #2 #3 #4Transformers and SVC tripped out of 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
62895POWER SYSTEM EVENTS22/05/2018 10:33:39 AM
Non-credible contingengency event - QLD region -22/05/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingengency event -QLD region -22/05/2018
At 1001 hrs at the Ross substation 275/132kV #2 #3 #4Transformers and SVC tripped out of service.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO therefore classifies this event as being a credible contingency event.
Manager NEM Real Time Operations
Non-credible contingengency event -QLD region -22/05/2018
At 1001 hrs at the Ross substation 275/132kV #2 #3 #4Transformers and SVC tripped out of service.
The cause of this non credible contingency event is not known at this stage.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO therefore classifies this event as being a credible contingency event.
Manager NEM Real Time Operations
62836POWER SYSTEM EVENTS14/05/2018 12:04:08 PM
Non-credible contingency event - NSW region - 14/05/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - NSW region - 14/05/2018
At 1127 hrs 14/05/18 at the Tomago substation 660 MW of industrial load tripped.
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 - NSW region - 14/05/2018
At 1127 hrs 14/05/18 at the Tomago substation 660 MW of industrial load tripped.
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
62770POWER SYSTEM EVENTS09/05/2018 07:45:14 PM
Update - Non-credible contingency event - NSW region - 09/05/2018
AEMO ELECTRICITY MARKET NOTICE
Update - Non-credible contingency event - NSW region - 09/05/2018
Refer AEMO Electricity Market Notice 62768
At 1938 hrs the Capital Wind Farm 330kV A 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 - 09/05/2018
Refer AEMO Electricity Market Notice 62768
At 1938 hrs the Capital Wind Farm 330kV A 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
62768POWER SYSTEM EVENTS09/05/2018 10:37:31 AM
Non-credible contingency event - NSW region - 09/05/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - NSW region - 09/05/2018
At 1017 hrs the Capital Wind Farm 330kV A 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 - 09/05/2018
At 1017 hrs the Capital Wind Farm 330kV A 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
62698POWER SYSTEM EVENTS04/05/2018 03:02:40 AM
Update - Non-credible contingency event -QLD region - 03/05/2018
AEMO ELECTRICITY MARKET NOTICE
Update - Non-credible contingency event -QLD region - 03/05/2018
Update to MN 62697.
At 0255 hrs the Woree No2 275/132kV Transformer and Woree - Chalumbin (876) 275 kV Line were 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 -QLD region - 03/05/2018
Update to MN 62697.
At 0255 hrs the Woree No2 275/132kV Transformer and Woree - Chalumbin (876) 275 kV Line were 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
62697POWER SYSTEM EVENTS04/05/2018 01:14:15 AM
Non-credible contingency event - QLD Region - 03/05/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - SA Region - 03/05/2018
At 2348 hrs the H39 Woree No 2 275/132 kV Transformer 132 kV CB opened automatically and subsequently offloading the Woree - Chalumbin (876) 275 kV Line
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 - 03/05/2018
At 2348 hrs the H39 Woree No 2 275/132 kV Transformer 132 kV CB opened automatically and subsequently offloading the Woree - Chalumbin (876) 275 kV Line
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
62610POWER SYSTEM EVENTS27/04/2018 08:29:41 PM
Non-credible contingency event - SA Region - 27/04/18
AEMO ELECTRICITY MARKET NOTICE
Refer AEMO ELECTRICITY MARKET NOTICE 62595
Non-credible contingency event - SA Region - 27/04/18
At 1836 hrs the South East Substation to Tailem Bend Substation No.1 275 kV Line and the South East Substation No.1 SVC tripped.
The cause of this non credible contingency event has been identified and isolated. 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 62595
Non-credible contingency event - SA Region - 27/04/18
At 1836 hrs the South East Substation to Tailem Bend Substation No.1 275 kV Line and the South East Substation No.1 SVC tripped.
The cause of this non credible contingency event has been identified and isolated. 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
62595POWER SYSTEM EVENTS27/04/2018 06:48:17 PM
Non-credible contingency event - SA region - 27/04/2018
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - SA region - 26/04/2018
At 1836 hrs the South East Substation to Tailem Bend Substation No.1 275 kV Line and the South East Substation No.1 SVC 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 - SA region - 26/04/2018
At 1836 hrs the South East Substation to Tailem Bend Substation No.1 275 kV Line and the South East Substation No.1 SVC 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