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AEMO advises that a Black system condition exists in the South Australia region
Power system emergency-Black system condition
AEMO advises that a Black system condition exists in the South Australia region
Manager NEM Real Time Operations
Update - Non-credible contingency event - Qld region - 18/09/16
Update - Non-credible contingency event - Qld region - 18/09/16
Update to MN 54932.
At 2135 hrs the Ross 4 Transformer 132 kV CB 4442 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 - 18/09/16
Non-credible contingency event - Qld region - 18/09/16
At 1956 hrs the Ross 4 Transformer 132 kV CB 4442 opened at the 132 kV connection 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.
Refer to AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Cancellation of the Actual (LOR2) condition in the South Australia region - 16 Sept 2016
Cancellation of the Actual (LOR2) condition in the South Australia region - 16 Sept 2016
Refer to AEMO Electricity Market Notice No. 54919
The Actual LOR2 condition in the South Australia Region is cancelled at 1525 hrs 16 Sept 2016
Manager NEM Real Time Operations
Actual LOR2 South Australia Region - 16 Sept 16
Actual LOR2 South Australia Region - 16 Sept 16
Refer AEMO Electricity Market Notice 54865
An actual LOR2 condition has been declared for the South Australia region from 0700 hrs and is forecast to continue until 1700 hrs during a planned outage of Moorabool - Mortlake 500 kV line in the Victoria region.
If a credible contingency event occurs in this period the South Australia region would separate from the rest of the NEM and is likely to result in interruptions to power supplies.
There are sufficient capacity reserves in the South Australia region to meet electricity demand but it may not be possible to bring the required additional capacity into service in time to avoid automatic under-frequency load shedding causing power interruptions.
Manager NEM Real Time Operations
Cancellation of the Actual (LOR2) condition in the South Australia region - 13 Sept 2016
Cancellation of the Actual (LOR2) condition in the South Australia region - 13 Sept 2016
Refer to AEMO Electricity Market Notice No. 54897
The Actual LOR2 condition in the South Australia Region is cancelled at 1715 hrs 13 Sept 2016
Manager NEM Real Time Operations
Actual LOR2 South Australia Region - 13 Sept 16
Actual LOR2 South Australia Region - 13 Sept 16
Refer AEMO Electricity Market Notice 54865
An actual LOR2 condition has been declared for the South Australia region from 830 hrs and is forecast to continue until 1700 hrs during a planned outage of Moorabool - Mortlake 500 kV line in the Victoria region.
If a credible contingency event occurs in this period the South Australia region would separate from the rest of the NEM and is likely to result in interruptions to power supplies.
There are sufficient capacity reserves in the South Australia region to meet electricity demand but it may not be possible to bring the required additional capacity into service in time to avoid automatic under-frequency load shedding causing power interruptions.
Manager NEM Real Time Operations
Cancellation of the Actual (LOR2) condition in the South Australia region - 10 Sept 2016
Cancellation of the Actual (LOR2) condition in the South Australia region - 10 Sept 2016
Refer to AEMO Electricity Market Notice No. 54886
The Actual LOR2 condition in the South Australia Region is cancelled at 1805 hrs 10 Sept 2016
Manager NEM Real Time Operations
Actual LOR2 South Australia Region - 09 Sept 2016
Actual LOR2 South Australia Region - 09 Sept 2016
Refer AEMO Electricity Market Notice 54872
An Actual LOR2 condition is declared for the South Australia region from 1800 hrs until further notice due to the planned outage of the Heywood No.2 500 kV busbar.
If a credible contingency event occurs during this period the South Australia region would separate from the rest of the NEM and is likely to result in interruptions to power supplies.
There are sufficient capacity reserves in the South Australia region to meet electricity demand but it may not be possible to bring the required additional capacity into service in time to avoid automatic under-frequency load shedding causing power interruptions.
Manager NEM Real Time Operations