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117331INTER-REGIONAL TRANSFER10/07/2024 12:24:27 PM
Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).
AEMO ELECTRICITY MARKET NOTICE
Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).
Refer AEMO Electricity Market Notice 117330
AEMO has been notified that the controls to vary Directlink output are now available.
Constraint set I-CTRL_ISSUE_TE revoked at 1220 hrs.
Manager NEM Real Time Operations
Cancellation Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region).
Refer AEMO Electricity Market Notice 117330
AEMO has been notified that the controls to vary Directlink output are now available.
Constraint set I-CTRL_ISSUE_TE revoked at 1220 hrs.
Manager NEM Real Time Operations
117330INTER-REGIONAL TRANSFER10/07/2024 11:17:51 AM
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 1120 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink control unavailable (NSW Region)
AEMO has been notified that the controls to vary Directlink output are unavailable until further notice.
Constraint set I-CTRL_ISSUE_TE invoked from 1120 hrs.
The constraint set contains equations with the following interconnector on the LHS:
N-Q-MNSP1
Manager NEM Real Time Operations
117325INTER-REGIONAL TRANSFER08/07/2024 08:01:41 PM
Inter-regional transfer limit variation - Eraring - Newcastle 90 330kV Line - NSW region - 08/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - Eraring - Newcastle 90 330kV Line - NSW region - 08/07/2024
At 1940 hrs 08/07/2024 there was an unplanned outage of Eraring - Newcastle 90 330kV Line
The following constraint set(s) invoked at 1950 hrs 08/07/2024
N-ERNC_90
This constraint set(s) contains 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 - Eraring - Newcastle 90 330kV Line - NSW region - 08/07/2024
At 1940 hrs 08/07/2024 there was an unplanned outage of Eraring - Newcastle 90 330kV Line
The following constraint set(s) invoked at 1950 hrs 08/07/2024
N-ERNC_90
This constraint set(s) contains 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
117323INTER-REGIONAL TRANSFER08/07/2024 07:41:53 PM
Inter-Regional Transfer limit variation - Directlink - NSW Region
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of all 3 cables of Directlink .
The following constraint set was invoked at 1845 hrs 08/07/2024
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer limit variation - Directlink - NSW Region
There has been an unplanned outage of all 3 cables of Directlink .
The following constraint set was invoked at 1845 hrs 08/07/2024
N-X_MBTE_3
The constraint set contains the following interconnector on the left hand side.
N-Q-MNSP1
Refer AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
117317INTER-REGIONAL TRANSFER08/07/2024 11:13:58 AM
Cancellation -Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 08/07/2024
AEMO ELECTRICITY MARKET NOTICE
Cancellation -Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 08/07/2024
Refer AEMO Electricity Market Notice 117314.
Constraint set CA_SYDS_559DA1A7 revoked 1105 hrs.
Manager NEM Real Time Operations
Cancellation -Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 08/07/2024
Refer AEMO Electricity Market Notice 117314.
Constraint set CA_SYDS_559DA1A7 revoked 1105 hrs.
Manager NEM Real Time Operations
117314INTER-REGIONAL TRANSFER08/07/2024 08:28:55 AM
Inter-regional transfer limit variation - constraint automation to manage Power System Security in NSW region - 08/07/2024
AEMO ELECTRICITY MARKET NOTICE
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_559DA1A7 from 0825hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
In order to maintain the power system in a secure operating state in the NSW region, AEMO has invoked automated constraint set CA_SYDS_559DA1A7 from 0825hrs until further notice.
This constraint set contains equations with the following interconnector on the LHS;
N-Q-MNSP1
Refer to AEMO Network Outage Scheduler (NOS) for further information.
Manager NEM Real Time Operations
117313INTER-REGIONAL TRANSFER08/07/2024 05:41:45 AM
Inter-regional transfer limit variation - 89 Lismore - Coffs 330kV Line - NSW region - 08/07/2024
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation - 89 Lismore - Coffs 330kV Line - NSW region - 08/07/2024
At 0511 hrs 08/07/2024 there was an unplanned outage of 89 Lismore - Coffs 330kV Line.
The following constraint set(s) invoked at 0525 hrs 08/07/2024
N-CHLS_89, N-DLETS_OS, N-X_MBTE_3
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
Inter-regional transfer limit variation - 89 Lismore - Coffs 330kV Line - NSW region - 08/07/2024
At 0511 hrs 08/07/2024 there was an unplanned outage of 89 Lismore - Coffs 330kV Line.
The following constraint set(s) invoked at 0525 hrs 08/07/2024
N-CHLS_89, N-DLETS_OS, N-X_MBTE_3
This constraint set(s) contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Refer to the AEMO Network Outage Scheduler for further information.
Manager NEM Real Time Operations
117307RECLASSIFY CONTINGENCY06/07/2024 11:04:37 PM
Cancellation: Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - SA region.
AEMO ELECTRICITY MARKET NOTICE.
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117306 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 2300 hrs 06/07/2024.
Constraint set revoked: I-VS_250
Manager NEM Real Time Operations
AEMO considers the occurrence of a non-credible contingency event due to the widespread abnormal conditions advised in AEMO Electricity Market Notice 117306 is no longer reasonably possible and accordingly its classification has reverted to non-credible.
Cancellation time: 2300 hrs 06/07/2024.
Constraint set revoked: I-VS_250
Manager NEM Real Time Operations
117306RECLASSIFY CONTINGENCY06/07/2024 09:34:08 PM
Reclassification of non-credible contingency event due to existence of widespread abnormal conditions - SA region.
AEMO ELECTRICITY MARKET NOTICE.
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely severe weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action to maintain power system security at 2120 hrs 06/07/2024.
Constraint set invoked: I-VS_250
Duration: 2120 hrs 06/07/2024 until further notice
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations
AEMO has identified that a non-credible contingency event impacting the power system is more likely to occur and is considered reasonably possible because of the existence of widespread abnormal conditions namely severe weather in the SA region.
AEMO has therefore reclassified the occurrence of a non-credible contingency event involving multiple plant due to these abnormal conditions as credible.
AEMO has taken the following action to maintain power system security at 2120 hrs 06/07/2024.
Constraint set invoked: I-VS_250
Duration: 2120 hrs 06/07/2024 until further notice
Need for further measures is being monitored and further measures may be implemented in line with the Power System Security Guidelines (SO_OP_3715).
Manager NEM Real Time Operations