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Update to planned outage at Tailem Bend - SA Region 17 May 2016
There is currently a planned outage of the Tailem Bend 275kV East Bus. Commencing at 0830 hrs 17/05/16, the outage is extended and will also offload the Tailem Bend - Cherry Gardens 275 kV line. During this outage, a trip of the Tailem Bend - Tunkilo 275 kV line severs the 275 kV connections between Victoria and South Australia regions. Should this contingency occur, AEMO will invoke the following FCAS regulation constraint sets.
F-S_LREG_0035
F-S_RREG_0035
For this contingency, the two regions remain connected by the 132 KV network but the next contingency will result in separation of Victoria and South Australia regions.
Refer to AEMO Network Outage Schedule (NOS) for further details
Manager NEM Real Time Operations
Cancellation - Inter-regional Inter-regional transfer limit variation - Greenbank to Middle Ridge (8849) 275kV Line (Qld) - Voltage Control
Cancellation - Inter-regional transfer limit variation - Greenbank to Middle Ridge (8849) 275kV Line (Qld) - Voltage Control - Monday, 16 May 2016
Refer to MN 53307
The Greenbank to Middle Ridge (8849) 275kV Line was returned to service.
The following constraint set was revoked at 0530 hrs until further notice.
Q-MRGB_8848_8849
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Manager NEM Real Time Operations
Cancellation -Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control
Cancellation -Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - Monday, 16 May 2016
Refer MN 53308
The Tarong to South Pine (832) 275kV Line has been returned to service.
The following constraint set was revoked at 0520 hrs..
Q-TRSP_832
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control
Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - Monday, 16 May 2016
The Tarong to South Pine (832) 275kV Line has been de-energised to manage voltages in the Qld region.
The following constraint set was invoked at 0120 hrs until further notice.
Q-TRSP_832
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-regional Inter-regional transfer limit variation - Greenbank to Middle Ridge (8849) 275kV Line (Qld) - Voltage Control
Inter-regional transfer limit variation - Greenbank to Middle Ridge (8849) 275kV Line (Qld) - Voltage Control - Monday, 16 May 2016
The Greenbank to Middle Ridge (8849) 275kV Line has been de-energised to manage voltages in the Qld region.
The following constraint set was invoked at 0015 hrs until further notice.
Q-MRGB_8848_8849
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Manager NEM Real Time Operations
Cancellation - Inter-regional Inter-regional transfer limit variation - Greenbank to Middle Ridge (8848) 275kV Line (Qld) - Voltage Control - 15 May 2016
Cancellation - Inter-regional transfer limit variation - Greenbank to Middle Ridge (8848) 275kV Line (Qld) - Voltage Control - 15May 2016
Refer to MN 53248
The Greenbank to Middle Ridge (8848) 275kV Line was returned to service.
The following constraint set was revoked at 0800 hrs
Q-MRGB_8848_8849
The constraint set contains equations with the following interconnectors on the LHS.
NSW-QLD1
N-Q-MNSP1
Refer to AEMO Network Outage Schedule for further details.
Manager NEM Real Time Operations
Cancellation -Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control
Cancellation -Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - Sunday, 15 May 2016
Refer MN 53250
The Tarong to South Pine (832) 275kV Line has been returned to service.
The following constraint set was revoked at 0605 hrs..
Q-TRSP_832
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control
Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - Sunday, 15 May 2016
The Tarong to South Pine (832) 275kV Line has been de-energised to manage voltages in the Qld region.
The following constraint set was invoked at 0245 hrs until further notice.
Q-TRSP_832
The constraint set contains equations with the following interconnectors on the LHS.
N-Q-MNSP1
Manager NEM Real Time Operations
Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500kV Line (VIC) - Voltage Control
Inter-regional transfer limit variation: Hazelwood - South Morang No.1 500kV Line (VIC) - Voltage Control - Sunday, 15th May 2016
The Hazelwood - South Morang No.1 500kV Line has been de-energised to manage voltages in the VIC region.
The following constraint set was invoked at 0230 hrs
V-HWSM
The constraint set contains equations with the following interconnectors on the LHS.
NSW1-QLD1
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Refer to AEMO Network Outage Schedule for further details and return to service times
Manager NEM Real Time Operations