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53553INTER-REGIONAL TRANSFER29/05/2016 02:17:24 AM
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region 29 May 2016
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region 29 May 2016
The AEMO Dynamic Stability Analysis application is indicating violations for a fault on a Hazelwood - South Morang 500 kV transmission line in the Victoria region. The following constraint set has been invoked to apply offset reduction to the Victoria transient stability export limit.
Constraint V-DSA_STAB-50 invoked from 0155 hrs to 0220 hrs.
Constraint V-DSA_STAB-100 invoked from 0220 hrs until further notice.
Constraints have the following interconnectors on the LHS
NSW1-QLD1
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1-NSW1
Manager NEM Real Time Operations
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region 29 May 2016
The AEMO Dynamic Stability Analysis application is indicating violations for a fault on a Hazelwood - South Morang 500 kV transmission line in the Victoria region. The following constraint set has been invoked to apply offset reduction to the Victoria transient stability export limit.
Constraint V-DSA_STAB-50 invoked from 0155 hrs to 0220 hrs.
Constraint V-DSA_STAB-100 invoked from 0220 hrs until further notice.
Constraints have the following interconnectors on the LHS
NSW1-QLD1
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1-NSW1
Manager NEM Real Time Operations
53552INTER-REGIONAL TRANSFER29/05/2016 01:51:17 AM
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region 29 May 2016
AEMO ELECTRICITY MARKET NOTICE
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region 29 May 2016
The AEMO Dynamic Stability Analysis application is indicating violations for a fault on a Hazelwood - South Morang 500 kV transmission line in the Victoria region. The following constraint set has been invoked to apply offset reduction to the Victoria transient stability export limit.
Constraint V-DSA_STAB-50 invoked from 0155 hrs until further notice.
Constraints have the following interconnectors on the LHS
NSW1-QLD1
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1-NSW1
Manager NEM Real Time Operations
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region 29 May 2016
The AEMO Dynamic Stability Analysis application is indicating violations for a fault on a Hazelwood - South Morang 500 kV transmission line in the Victoria region. The following constraint set has been invoked to apply offset reduction to the Victoria transient stability export limit.
Constraint V-DSA_STAB-50 invoked from 0155 hrs until further notice.
Constraints have the following interconnectors on the LHS
NSW1-QLD1
T-V-MNSP1
V-SA
V-S-MNSP1
VIC1-NSW1
Manager NEM Real Time Operations
53528POWER SYSTEM EVENTS26/05/2016 04:39:17 PM
Update - Non-credible contingency event - SA region - 26/05/2016
AEMO ELECTRICITY MARKET NOTICE
Update - Non-credible contingency event - SA region - 26/05/2016
Update to Market Notice 53526
At 0851 hrs the South East - Tailem Bend No. 1 275 kV Line and the South East No. 1 275 kV SVC tripped.
At 0930 hrs the South East - Tailem Bend No. 1 275 kV Line was returned to service
At 1617 hrs the South East No. 1 275 kV SVC was returned to service
The following Constraint Sets were revoked at 1630 hrs.
S-SE_VC_1
V-2RP
See the AEMO Network Outage Scheduler (NOS) for further information
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 - SA region - 26/05/2016
Update to Market Notice 53526
At 0851 hrs the South East - Tailem Bend No. 1 275 kV Line and the South East No. 1 275 kV SVC tripped.
At 0930 hrs the South East - Tailem Bend No. 1 275 kV Line was returned to service
At 1617 hrs the South East No. 1 275 kV SVC was returned to service
The following Constraint Sets were revoked at 1630 hrs.
S-SE_VC_1
V-2RP
See the AEMO Network Outage Scheduler (NOS) for further information
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
53527INTER-REGIONAL TRANSFER26/05/2016 09:41:40 AM
Update - Interregional Transfer Limit variation, South Australia Region Wednesday 26 May 2016
AEMO ELECTRICITY MARKET NOTICE
Interregional Transfer Limit Variation, South Australia Region Wednesday 26 May 2016
Update to Market Notice 53525
At 0930 hrs South East - Tailem Bend No.1 275 kV Line returned to service. The South East No.1 275 kV SVC remains out of service.
The following Constraint Set was revoked at 0945 hrs.
S-TBSE
See the AEMO Network Outage Scheduler (NOS) for further information
Manager NEM Real Time Operations
Interregional Transfer Limit Variation, South Australia Region Wednesday 26 May 2016
Update to Market Notice 53525
At 0930 hrs South East - Tailem Bend No.1 275 kV Line returned to service. The South East No.1 275 kV SVC remains out of service.
The following Constraint Set was revoked at 0945 hrs.
S-TBSE
See the AEMO Network Outage Scheduler (NOS) for further information
Manager NEM Real Time Operations
53526POWER SYSTEM EVENTS26/05/2016 09:14:35 AM
Non-credible contingency event - SA region - 26/05/2016
AEMO ELECTRICITY MARKET NOTICE
Non-credible contingency event - SA region - 26/05/2016
At 0851 hrs the South East Tailem Bend No. 1 275 kV Line and the South East No. 1 275 kV SVC tripped.
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 - 26/05/2016
At 0851 hrs the South East Tailem Bend No. 1 275 kV Line and the South East No. 1 275 kV SVC tripped.
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
53525INTER-REGIONAL TRANSFER26/05/2016 09:20:23 AM
Interregional Transfer Limit variation, South Australia Region Wednesday 26 May 2016
AEMO ELECTRICITY MARKET NOTICE
Interregional Transfer Limit Variation, South Australia Region Wednesday 26 May 2016
At 0851 hrs, in the South Australia region the Tailem Bend to South East No.1 Line tripped in conjunction with the No.1 South East SVC.
Refer to Market Notice 53526
The following Constraint Sets have been invoked
S-TBSE at 0900 hrs
V-2RP at 0905 hrs
S-SE_VC_1 at 0905 hrs
These Constraint Sets contain equations with the following interconnector on the LHS
NSW1-QLD1
V-S-MNSP1
V-SA
VIC1-NSW1
T-V-MNSP1
See the AEMO Network Outage Scheduler (NOS) for further information
Manager NEM Real Time Operations
Interregional Transfer Limit Variation, South Australia Region Wednesday 26 May 2016
At 0851 hrs, in the South Australia region the Tailem Bend to South East No.1 Line tripped in conjunction with the No.1 South East SVC.
Refer to Market Notice 53526
The following Constraint Sets have been invoked
S-TBSE at 0900 hrs
V-2RP at 0905 hrs
S-SE_VC_1 at 0905 hrs
These Constraint Sets contain equations with the following interconnector on the LHS
NSW1-QLD1
V-S-MNSP1
V-SA
VIC1-NSW1
T-V-MNSP1
See the AEMO Network Outage Scheduler (NOS) for further information
Manager NEM Real Time Operations
53522INTER-REGIONAL TRANSFER25/05/2016 05:03:29 PM
Inter-Regional Transfer Limit Variation - Lower Tumut to Yass (03) 330kV Transmission Line - NSW Region - 25 May 2016
AEMO ELECTRICITY MARKET NOTICE
Inter-Regional Transfer Limit Variation - Lower Tumut to Yass (03) 330kV Transmission Line - NSW Region - 25 May 2016
The planned outage of Lower Tumut to Yass (03) 330kV Transmission Line was scheduled to complete at 1600 hrs 26/05/16.
The outage has completed early
The following constraint set for this outage was revoked at 1700 hrs 25/05/16
N-LTYS_03
The constraint set contains equations with the following interconnectors on the left hand side:
V-S-MNSP1
VIC1-NSW1
See AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
Inter-Regional Transfer Limit Variation - Lower Tumut to Yass (03) 330kV Transmission Line - NSW Region - 25 May 2016
The planned outage of Lower Tumut to Yass (03) 330kV Transmission Line was scheduled to complete at 1600 hrs 26/05/16.
The outage has completed early
The following constraint set for this outage was revoked at 1700 hrs 25/05/16
N-LTYS_03
The constraint set contains equations with the following interconnectors on the left hand side:
V-S-MNSP1
VIC1-NSW1
See AEMO Network Outage Scheduler (NOS) for further details.
Manager NEM Real Time Operations
53521INTER-REGIONAL TRANSFER25/05/2016 04:25:00 PM
Interregional Transfer Limit variation, South Australia Region Wednesday 25 May 2016
AEMO ELECTRICITY MARKET NOTICE
Interregional Transfer Limit Variation, South Australia Region Wednesday 25 May 2016
At 1458hrs, the Canowie to Robertstown 275kV transmission line in the South Australia region tripped. .There was a prior planned outage of the Davenport to Canowie 275kV transmission line.
The following constraint sets are now invoked for these outages
S-X_DVCV+CNRB+RBCB
S-CNHL_HAL
The outage constraints contain equations with the following interconnector on the LHS
V-S-MNSP1
See the AEMO NOS for further information
Manager NEM Real Time Operations
Interregional Transfer Limit Variation, South Australia Region Wednesday 25 May 2016
At 1458hrs, the Canowie to Robertstown 275kV transmission line in the South Australia region tripped. .There was a prior planned outage of the Davenport to Canowie 275kV transmission line.
The following constraint sets are now invoked for these outages
S-X_DVCV+CNRB+RBCB
S-CNHL_HAL
The outage constraints contain equations with the following interconnector on the LHS
V-S-MNSP1
See the AEMO NOS for further information
Manager NEM Real Time Operations
53516POWER SYSTEM EVENTS24/05/2016 06:57:10 PM
Update Non-credible contingency event - NSW region - 24 May 2016
AEMO ELECTRICITY MARKET NOTICE
Update Non-credible contingency event - NSW region - 24 May 2016
Refer market notice 53511,53515
At 0950 hrs the Tuggerah 330kV circuit breakers 212A and 2M2A opened simultaneously.
At 1827 hrs the Tuggerah 330kV circuit breakers 212A and 2M2A were 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
Update Non-credible contingency event - NSW region - 24 May 2016
Refer market notice 53511,53515
At 0950 hrs the Tuggerah 330kV circuit breakers 212A and 2M2A opened simultaneously.
At 1827 hrs the Tuggerah 330kV circuit breakers 212A and 2M2A were 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