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82961RECLASSIFY CONTINGENCY22/02/2021 11:34:02 PM
Cancellation of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Cancellation time: 22/02/2021 23:33
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 82960
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Cancellation time: 22/02/2021 23:33
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 82960
Auto-generated on behalf of Manager NEM Real Time Operations
82960RECLASSIFY CONTINGENCY22/02/2021 10:33:45 PM
Reclassification of a Non-Credible Contingency Event: Lismore - Dunoon 9U6 132kV line and Lismore - Dunoon 9U7 132kV line in NSW1 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: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Duration: 22/02/2021 22:33 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: NSW1
Lines: Lismore - Dunoon 9U6 132kV and Lismore - Dunoon 9U7 132kV
Duration: 22/02/2021 22:33 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of 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
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
82958INTER-REGIONAL TRANSFER22/02/2021 09:42:00 PM
Inter-regional transfer limit variation - South Pine 275 kV SVC - QLD region - 22/02/2021
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - South Pine 275 kV SVC - QLD region - 22/02/2021
At 2120 hrs 22/02/2021 there was an unplanned outage of South Pine 275 kV SVC.
Constraint set invoked: Q-SP_VC
This constraint sets contain equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - South Pine 275 kV SVC - QLD region - 22/02/2021
At 2120 hrs 22/02/2021 there was an unplanned outage of South Pine 275 kV SVC.
Constraint set invoked: Q-SP_VC
This constraint sets contain equations with the following interconnectors on the LHS.
N-Q-MNSP1
NSW1 - QLD1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
82957GENERAL NOTICE22/02/2021 09:30:46 PM
Cancellation - Psymetrix PhasorPoint - Unplanned Outage - 22/02/2021
AEMO ELECTRICITY MARKET NOTICE
Refer to MN 82955
AEMO Psymetrix PhasorPoint application returned to service.
The following constraint set was invoked from 2050 hrs to 2125 hrs
I-OSC_STAB_MON
The constraint set contains the following interconnector on the left hand side.
NSW1-QLD1
V-S_MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Refer to MN 82955
AEMO Psymetrix PhasorPoint application returned to service.
The following constraint set was invoked from 2050 hrs to 2125 hrs
I-OSC_STAB_MON
The constraint set contains the following interconnector on the left hand side.
NSW1-QLD1
V-S_MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
82956RECLASSIFY CONTINGENCY22/02/2021 09:09:02 PM
Cancellation of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV line in QLD1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 22/02/2021 21:08
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 82954
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: QLD1
Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Cancellation time: 22/02/2021 21:08
Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Refer AEMO Electricity Market Notice 82954
Auto-generated on behalf of Manager NEM Real Time Operations
82955GENERAL NOTICE22/02/2021 08:53:19 PM
Psymetrix PhasorPoint - Unplanned Outage - 22/02/2021
AEMO ELECTRICITY MARKET NOTICE
There is an unplanned outage of AEMO Psymetrix PhasorPoint application.
The following constraint set was invoked at 2050 hrs 22/02/2021
I-OSC_STAB_MON
The constraint set contains the following interconnector on the left hand side.
NSW1-QLD1
V-S_MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
There is an unplanned outage of AEMO Psymetrix PhasorPoint application.
The following constraint set was invoked at 2050 hrs 22/02/2021
I-OSC_STAB_MON
The constraint set contains the following interconnector on the left hand side.
NSW1-QLD1
V-S_MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
82954RECLASSIFY CONTINGENCY22/02/2021 06:04:15 PM
Reclassification of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV line in QLD1 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: QLD1
Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Duration: 22/02/2021 18:04 until further notice
Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
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: QLD1
Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV
Duration: 22/02/2021 18:04 until further notice
Constraint set(s) invoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1
Auto-generated on behalf of Manager NEM Real Time Operations
82953RECLASSIFY CONTINGENCY22/02/2021 04:19:00 PM
Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 due to Lightning.
AEMO ELECTRICITY MARKET NOTICE
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 22/02/2021 16:18
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 82948
Auto-generated on behalf of Manager NEM Real Time Operations
Cancellation of reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.
Region: NSW1
Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV
Cancellation time: 22/02/2021 16:18
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 82948
Auto-generated on behalf of Manager NEM Real Time Operations