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Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 May 2016
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 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-050 invoked from 1145 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
Non-credible contingency event - NSW region - 24 May 2016
Non-credible contingency event - NSW region - 24 May 2016
At 0950 hrs the Tuggerah 330kV circuit breakers 212A and 2M2A opened simultaneously.
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
Cancellation - Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 May 2016
Cancellation - Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 May 2016
The AEMO Dynamic Stability Analysis application is no longer indicating violations for a fault on a Hazelwood - South Morang 500 kV transmission line in the Victoria region. The following constraint set has been revoked at 0715hrs.
Constraint V-DSA_STAB-050
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 Tuesday, 24 May 2016
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 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-050 invoked from 0635 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
Cancellation - Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 May 2016
Cancellation - Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 May 2016
The AEMO Dynamic Stability Analysis application is no longer indicating violations for a fault on a Hazelwood - South Morang 500 kV transmission line in the Victoria region. The following constraints sets have been invoked to apply offset reductions to the Victoria transient stability export limit.
Constraint V-DSA_STAB-100 invoked from 0205 hrs to 0325 hrs.
Constraint V-DSA_STAB-050 invoked from 0325 hrs to 0610 hrs.
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
Update - Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 May 2016
Update - Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 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 constraints sets have been invoked to apply offset reductions to the Victoria transient stability export limit.
Constraint V-DSA_STAB-100 invoked from 0205 hrs to 0325 hrs.
Constraint V-DSA_STAB-050 invoked from 0325 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 Tuesday, 24 May 2016
Inter-regional transfer limit variation for Transient Stability Limit Victoria Region Tuesday, 24 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-100 invoked from 0205 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
Cancellation - Inter-Regional Transfer limit variation: F2 Transformer Victoria Region, 23 May 2016.
Cancellation - Inter-Regional Transfer limit variation: F2 Transformer Victoria Region, 23 May 2016.
Refer Market Notices 53461, 53465, 53502, 53503
To maintain power system security AEMO have applied a limit of 850 MVA to the F2 transformer in NEMDE. This limit has been removed.
This restriction on use of short term ratings for the F2 Transformer in the Victoria region is cancelled from 0002 hrs Tuesday 24th May
This restriction will affect the following interconnectors.
T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1
Manager NEM Real Time Operations
Planned outages of Moorabool-Sydenham No.1 500 kV line and Sydenham-South Morang No.1 500 kV line - Victoria Region on 25 and 30 May 2016
Planned outages of Moorabool-Sydenham No.1 500 kV line and Sydenham-South Morang No.1 500 kV line - Victoria Region on 25 May and 30 May 2016.
There are planned outages of Moorabool-Sydenham No.1 500 kV line and Sydenham-South Morang No.1 500 kV line between 0630-1630hrs on 25 May 2016 and 0630-1800hrs on 30 May 2016.
During these outages, South Australia region remains connected to the NEM for the first contingency (trip of the Moorabool - Sydenham No.2 500 kV line). However, there is a potential risk of South Australia region separation from the rest of the NEM for the subsequent contingency following the first contingency.
AEMO will invoke the following FCAS regulation constraint sets after the first contingency during this outage to secure the power system in South Australia region.
F-S_LREG_0035
F-S_RREG_0035
Refer to AEMO Network Outage Schedule (NOS) for further details
Operations Planning