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67560RECLASSIFY CONTINGENCY04/03/2019 02:53:30 PM
Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 220 kV line and Dederang - Glenrowan No.3 220 kV line in VIC1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Dederang - Glenrowan No.1 220 kV and Dederang - Glenrowan No.3 220 kV
Duration: 04/03/2019 14:53 until further notice
Constraint set(s) invoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
V-SA
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Dederang - Glenrowan No.1 220 kV and Dederang - Glenrowan No.3 220 kV
Duration: 04/03/2019 14:53 until further notice
Constraint set(s) invoked:
V-DDGN_N-2 Constraint set contains the following interconnector(s) on the left hand side:
V-S-MNSP1
V-SA
VIC1-NSW1
Auto-generated on behalf of Manager NEM Real Time Operations
67559RECLASSIFY CONTINGENCY04/03/2019 02:34:05 PM
Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 04/03/2019 14:34 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.
Region: VIC1
Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV
Duration: 04/03/2019 14:34 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
67558POWER SYSTEM EVENTS04/03/2019 11:02:44 AM
Update-Non-credible contingency event - Qld region - 04/03/2019
AEMO ELECTRICITY MARKET NOTICE.
Update-Non-credible contingency event - Qld region - 04/03/2019
At 0341 hrs the T31_Baralaba Nos 1 and 2 132 kV Buses tripped and subsequently offloaded 7111 Baralaba to Calvale, 7112 Baralaba to Moura, 7113 Baralaba to Blackwater and 7114 Baralaba to Blackwater Tee Duaringa 132kv Lines..
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 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 - 04/03/2019
At 0341 hrs the T31_Baralaba Nos 1 and 2 132 kV Buses tripped and subsequently offloaded 7111 Baralaba to Calvale, 7112 Baralaba to Moura, 7113 Baralaba to Blackwater and 7114 Baralaba to Blackwater Tee Duaringa 132kv Lines..
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 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
67557NON-CONFORMANCE04/03/2019 10:20:13 AM
NON-CONFORMANCE Region QLD1 Monday, 4 March 2019
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE QLD1 Region Monday, 4 March 2019
AEMO declared a schedule generating unit non-conforming
Unit: DDPS1
Duration: 04/03/2019 10:05 to 04/03/2019 10:20
Amount: 26 MW
Constraint: NC-Q_DDPS1
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE QLD1 Region Monday, 4 March 2019
AEMO declared a schedule generating unit non-conforming
Unit: DDPS1
Duration: 04/03/2019 10:05 to 04/03/2019 10:20
Amount: 26 MW
Constraint: NC-Q_DDPS1
Auto-generated on behalf of Manager NEM Real Time Operations
67556POWER SYSTEM EVENTS04/03/2019 05:19:13 AM
Non-credible contingency event - SA region - 04/03/2019
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - SA region - 04/03/2019
At 0459 hrs the Mintaro - Waterloo 132 kV Line tripped and the Mintaro - Clare Nth 132 kV Line opened at Mintaro 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
Non-credible contingency event - SA region - 04/03/2019
At 0459 hrs the Mintaro - Waterloo 132 kV Line tripped and the Mintaro - Clare Nth 132 kV Line opened at Mintaro 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
67555POWER SYSTEM EVENTS04/03/2019 04:20:26 AM
Non-credible contingency event - Qld region - 04/03/2019
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - Qld region - 04/03/2019
At 0341 hrs the T31_Baralaba Nos 1 and 2 132 kV Buses tripped and subsequently offloaded 7111 Baralaba to Calvale, 7112 Baralaba to Moura, 7113 Baralaba to Blackwater and 7114 Baralaba to Blackwater Tee Duaringa 132kv Lines..
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 - Qld region - 04/03/2019
At 0341 hrs the T31_Baralaba Nos 1 and 2 132 kV Buses tripped and subsequently offloaded 7111 Baralaba to Calvale, 7112 Baralaba to Moura, 7113 Baralaba to Blackwater and 7114 Baralaba to Blackwater Tee Duaringa 132kv Lines..
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
67554INTER-REGIONAL TRANSFER04/03/2019 03:17:06 AM
Inter-Regional Transfer limit variation - Para to Angus Creek 132kV Line outage - SA Region
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Para to Angus Creek 132kV Line outage - SA Region
At 0249 an unplanned outage of the Para to Angus Creek 132kV transmission line occured
Constraint set S-PAMO has been invoked from 0300 hrs until further notice
This Constraint Set contains equations with the following interconnector on the LHS.
V-SA
See Network Outage Scheduler (NOS) for further details
Manager NEM Realtime Operations
Inter-Regional Transfer limit variation - Para to Angus Creek 132kV Line outage - SA Region
At 0249 an unplanned outage of the Para to Angus Creek 132kV transmission line occured
Constraint set S-PAMO has been invoked from 0300 hrs until further notice
This Constraint Set contains equations with the following interconnector on the LHS.
V-SA
See Network Outage Scheduler (NOS) for further details
Manager NEM Realtime Operations
67553RECLASSIFY CONTINGENCY03/03/2019 11:21:17 PM
Cancellation - Reclassification of a Non-Credible Contingency Event: Rowville - Hazelwood Terminal Station No. 1 & No. 2 220 kV Lines in VIC due to Bushfire
AEMO ELECTRICITY MARKET NOTICE.
Cancellation - Reclassification of a Non-Credible Contingency Event: Rowville - Hazelwood Terminal Station No. 1 & No. 2 220 kV Lines in VIC due to Bushfire
Refer to MN 67549
AEMO no longer considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO cancels the reclassification as a credible contingency event.
Region: VIC1
Lines: Rowville - Hazelwood Terminal Station No. 1 & No. 2 220 kV Lines
Duration: 1540 hrs 03/03/2019 to 2315 hrs 03/03/2019
Constraint set(s) invoked: NIL
Manager NEM Real Time Operations
Cancellation - Reclassification of a Non-Credible Contingency Event: Rowville - Hazelwood Terminal Station No. 1 & No. 2 220 kV Lines in VIC due to Bushfire
Refer to MN 67549
AEMO no longer considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO cancels the reclassification as a credible contingency event.
Region: VIC1
Lines: Rowville - Hazelwood Terminal Station No. 1 & No. 2 220 kV Lines
Duration: 1540 hrs 03/03/2019 to 2315 hrs 03/03/2019
Constraint set(s) invoked: NIL
Manager NEM Real Time Operations
67552RECLASSIFY CONTINGENCY03/03/2019 11:21:30 PM
Cancellation - Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No. 5 & No. 6 220 kV Lines in VIC due to Bushfire
AEMO ELECTRICITY MARKET NOTICE.
Cancellation - Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No. 5 & No. 6 220 kV Lines in VIC due to Bushfire
Refer to MN 67548
AEMO no longer considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has cancelled the classification as a credible contingency event.
Region: VIC1
Lines: Rowville - Yallourn No. 5 & No. 6 220 kV Lines
Duration: 1540 hrs 03/03/2019 to 2315hrs 03/03/2019
Constraint set(s) invoked: NIL
Manager NEM Real Time Operations
Cancellation - Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No. 5 & No. 6 220 kV Lines in VIC due to Bushfire
Refer to MN 67548
AEMO no longer considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has cancelled the classification as a credible contingency event.
Region: VIC1
Lines: Rowville - Yallourn No. 5 & No. 6 220 kV Lines
Duration: 1540 hrs 03/03/2019 to 2315hrs 03/03/2019
Constraint set(s) invoked: NIL
Manager NEM Real Time Operations