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Non-credible contingency event - QLD region - 25/02/2019
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - QLD region - 25/02/2019
At 2047 hrs the Collinsville North - Proserpine 7125 132 kV Transmission line opened at the Proserpine end only.
The cause of this non credible contingency event is not known at this stage. AEMO will reclassify this event as a credible contingency event.
Manager NEM Real Time Operations
Update - Non-credible contingency event - Vic region - 18/02/2019
Update - Non-credible contingency event - Vic region - 18/02/2019
Refer AEMO ELECTRICITY MARKET NOTICE 67314
At 1241 hrs the Moorabool - Sydenham No. 2 500 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
Non-credible contingency event -Vic Region - 18/02/2019
Non-credible contingency event -Vic Region - 18/02/2019
At 1956 hrs the Keilor Sydenham 500 kV line, Moorabool Sydenham No 2 500 kV line and Sydenham No2 500 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
Update - Non-credible contingency event - Queensland region - 11/02/2019
Update - Non-credible contingency event - Queensland region - 11/02/2019
Refer AEMO ELECTRICITY MARKET NOTICE MN 67214
At 1616 hrs the Alan Sheriff (T150) substation No 1 132 kV bus tripped.
At 1647 hrs the Alan Sheriff (T150) substation No 1 132 kV bus was returned to service
AEMO did not instruct load shedding.
AEMO has been advised of the disconnection of 10 MW electrical load for 1 minute.
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 - Queensland region - 11/02/2019
Non-credible contingency event - Queensland region - 11/02/2019
At 1616 hrs the Alan Sherrif (T150) substation No 1 132 kV bus tripped.
AEMO did not instruct load shedding.
AEMO has been advised of the disconnection of 10 MW electrical load for 1 minute.
The cause of this non credible contingency event is not known at this stage.
Manager NEM Real Time Operations
Update - Non-credible contingency event - Qld region - 05/02/2019
Update - Non-credible contingency event - Qld region - 05/02/2019
Refer AEMO ELECTRICITY MARKET NOTICE MN67118
At 1049 hrs the the Edmonton - Woree (7284) 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
Non-credible contingency event - QLD region - 05/02/2019
Non-credible contingency event - QLD region - 05/02/2019
At 0158 hrs the Edmonton - Woree (7284) 132 kV Feeder tripped at the Edmonton 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
Update - Non-credible contingency event - TAS region - 16/12/2018
Update - Non-credible contingency event - Tas region - 16/12/2018
Refer AEMO ELECTRICITY MARKET NOTICE MN 66055
At 1824 hrs 16/12/2018 the Waddamana - Palmerston 110 kV line tripped and automatically reclosed and the Waddamana - Bridgewater 110 kV line tripped at the Bridgewater end only and automatically reclosed.
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 no longer reclassify this event as a credible contingency event from 1545 hrs 04/02/2019.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW Region - 30 Jan 2019
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW Region - 30 Jan 2019
Refer AEMO ELECTRICITY MARKET NOTICE 66993
At 1658 hrs the Murray to Guthega (97G) 132 kV Line tripped.at Murray end only
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO has therefore reclassified this event as a credible contingency event until further notice.
Manager NEM Real Time Operations