Market Notices

83216POWER SYSTEM EVENTS10/03/2021 10:54:28 PM

Update - Non-credible contingency event - NSW region - 10/03/2021

Update - Non-credible contingency event - NSW region - 10/03/2021

Refer AEMO ELECTRICITY MARKET NOTICE MN 83201

At 2246 hrs the Vales Point No. 1 330/132 transformer and the Vales Point to Lake Munmorah 95T 132kV 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
83201POWER SYSTEM EVENTS10/03/2021 09:22:30 AM

Non-credible contingency event - NSW region - 10/03/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 10/03/2021

At 0851 hrs the Vales Point No. 1 330/132 transformer, Vales Point to Lake Munmorah 95T 132kV line and the Vales Point No. 5 Unit 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
83111POWER SYSTEM EVENTS04/03/2021 12:18:25 PM

Non-credible contingency event - Qld region - 04/03/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - Qld region - 04/03/2021

At 11:49 hrs the H79 Yuleba North 132 kV bus 2 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
83110POWER SYSTEM EVENTS04/03/2021 04:36:40 AM

Update - Non-credible contingency event - Qld region - 04/03/2021

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - Qld region - 04/03/2021

Refer AEMO ELECTRICITY MARKET NOTICE MN83109

At 0429 hrs the Dysart No 1 Transformer and the Dysart SVC 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
83109POWER SYSTEM EVENTS04/03/2021 01:44:25 AM

Non-credible contingency event - Qld region - 04/03/2021

AEMO ELECTRICITY MARKET NOTICE

Non-credible contingency event - Qld region - 04/03/2021

At 0124 hrs the Dysart No 1 Transformer and the Dysart SVC tripped.

AEMO did not instruct load shedding.

AEMO has been advised of the disconnection of approximately 40MW of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.

Manager NEM Real Time Operations
83056POWER SYSTEM EVENTS28/02/2021 01:23:49 AM

Non-credible contingency event - QLD region - 28/02/2021

AEMO ELECTRICITY MARKET NOTICE

Non-credible contingency event - QLD region - 28/02/2021

At 0049 hrs 28/02/2021 the Baralaba - Moura 7112 132 kV Transmission line opened at the Baralaba end only.

The cause of this non credible contingency event is not known at this stage.

Manager NEM Real Time Operations
82959POWER SYSTEM EVENTS22/02/2021 10:25:25 PM

Non-credible contingency event - Qld region - 22/02/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - Qld region - 22/02/2021

At 2120 hrs the South Pine SVC and the Mount England - Wivenhoe Power Station No 824 275 kV line tripped.

All equipment has been returned to service at 2214 hrs.

The cause of this non credible contingency event has been identified.
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
82603POWER SYSTEM EVENTS05/02/2021 03:21:56 AM

Non-credible contingency event - Qld Region - 05/02/2021

AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - Qld Region - 05/02/2021

At 0248 hrs the T31 Baralaba Nos 1 and 2 132 kV Buses 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
82383POWER SYSTEM EVENTS26/01/2021 09:53:22 AM

Update - Non-credible contingency event - SA region - 24/01/2021

AEMO ELECTRICITY MARKET NOTICE.
Refer Market Notice 82348
Non-credible contingency event - SA region - 24/01/2021

As of 09:55 hrs 26/01/2021 all Lines have been returned to service

Tailem Bend - Cherry Gardens 275 kV Line

Cherry Gardens - Mount Barker South 275 kV Line

Cherry Gardens - Mt Barker 132 kV Line

Constraint Set S-CGTB1 revoked at 0955 hrs 26/01/2021.

The cause of this non credible contingency has been being identified and will not be reclassified as a credible event.

Manager NEM Real Time Operations
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