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62874GENERAL NOTICE18/05/2018 03:07:11 PM
Update - Planned frequency tests in Tasmania on 18/05/2018
AEMO ELECTRICITY MARKET NOTICE.
Refer AEMO Electricity Market Notice 62868
Testing was completed at 15:00 hrs.
Manager NEM Real Time Operations
Refer AEMO Electricity Market Notice 62868
Testing was completed at 15:00 hrs.
Manager NEM Real Time Operations
62868GENERAL NOTICE18/05/2018 10:48:28 AM
Planned frequency tests in Tasmania on 18/05/2018
AEMO ELECTRICITY MARKET NOTICE
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's AGC control system, and to some of generating units' governors controls in Tasmania to measure the effect on Tasmanian frequency control under normal operating conditions.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 18/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's AGC control system, and to some of generating units' governors controls in Tasmania to measure the effect on Tasmanian frequency control under normal operating conditions.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 18/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
62853GENERAL NOTICE17/05/2018 04:04:09 PM
Planned power system frequency tests in Tasmania for 17/05/2018 completed
AEMO ELECTRICITY MARKET NOTICE.
Planned power system frequency tests in Tasmania for 17/05/2018 completed
Refer AEMO Electricity Market Notice 62852
Testing was completed at 1600 hrs.
Manager NEM Real Time Operations
Planned power system frequency tests in Tasmania for 17/05/2018 completed
Refer AEMO Electricity Market Notice 62852
Testing was completed at 1600 hrs.
Manager NEM Real Time Operations
62852GENERAL NOTICE17/05/2018 10:45:17 AM
Planned power system frequency tests in Tasmania on 17/05/2018
AEMO ELECTRICITY MARKET NOTICE
Planned power system frequency tests in Tasmania on 17/05/2018
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.
The effect on Tasmanian frequency control under normal operating conditions will be measured.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 17/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
Planned power system frequency tests in Tasmania on 17/05/2018
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.
The effect on Tasmanian frequency control under normal operating conditions will be measured.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 17/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
62847GENERAL NOTICE15/05/2018 03:00:34 PM
Planned power system frequency tests in Tasmania for 15/05/2018 completed
AEMO ELECTRICITY MARKET NOTICE.
Planned power system frequency tests in Tasmania for 15/05/2018 completed
Refer AEMO Electricity Market Notice 62845
Testing was completed at 1500 hrs.
Manager NEM Real Time Operations
Planned power system frequency tests in Tasmania for 15/05/2018 completed
Refer AEMO Electricity Market Notice 62845
Testing was completed at 1500 hrs.
Manager NEM Real Time Operations
62845GENERAL NOTICE15/05/2018 10:14:21 AM
Planned power system frequency tests in Tasmania on 15/05/2018
AEMO ELECTRICITY MARKET NOTICE
Planned power system frequency tests in Tasmania on 15/05/2018
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.
The effect on Tasmanian frequency control under normal operating conditions will be measured.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 15/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
Planned power system frequency tests in Tasmania on 15/05/2018
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.
The effect on Tasmanian frequency control under normal operating conditions will be measured.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 15/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
62842GENERAL NOTICE14/05/2018 03:00:11 PM
Planned power system frequency tests in Tasmania for 14/05/2018 completed
AEMO ELECTRICITY MARKET NOTICE.
Planned power system frequency tests in Tasmania for 14/05/2018 completed
Refer AEMO Electricity Market Notice 62835
Testing was completed at 1500 hrs.
Manager NEM Real Time Operations
Planned power system frequency tests in Tasmania for 14/05/2018 completed
Refer AEMO Electricity Market Notice 62835
Testing was completed at 1500 hrs.
Manager NEM Real Time Operations
62835GENERAL NOTICE14/05/2018 10:31:30 AM
Planned power system frequency tests in Tasmania on 14/05/2018
AEMO ELECTRICITY MARKET NOTICE
Planned power system frequency tests in Tasmania on 14/05/2018
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.
The effect on Tasmanian frequency control under normal operating conditions will be measured.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 14/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
Planned power system frequency tests in Tasmania on 14/05/2018
Frequency tests in Tasmania have been arranged between AEMO and relevant participants.
Testing involves making selective changes to AEMO's automatic generation control (AGC) system and to some of Tasmania generating units' governor controls.
The effect on Tasmanian frequency control under normal operating conditions will be measured.
Scheduled time of the test is between 1100 hrs - 1500 hrs on 14/05/2018
Market Participants in mainland regions will not be affected by the tests.
Manager NEM Real Time Operations
62705GENERAL NOTICE04/05/2018 02:49:35 PM
Planned outage of Tailem Bend - South East 275kV No 1 line in the SA region beginning on 04/06/2018
AEMO ELECTRICITY MARKET NOTICE
The Tailem Bend - South East 275kV No 1 line and Tailem Bend 275kV West Bus in South Australia (SA) region are planned to be out of service from 0800 hrs on 04/06/2018 to 1730 hrs on 15/06/2018.
During this outage, SA will remain connected to the rest of the NEM via the Tailem Bend - South East 275kV No 2 line and the 132kV network.
A credible contingency event on the Tailem Bend - South East 275kV No 2 line or Tailem Bend - Tunkillo 275 kV line during this planned outage will sever the 275kV connections between the NEM and SA. If SA remains connected to the NEM via the 132kV network, this will pose a system security issue.
If one of the above credible contingencies occurs, 35 MW of raise and lower regulation FCAS will be sourced from within SA.
If this occurs, AEMO will take all necessary steps as outlined in Section 6.1 of SO-OP-3715 Power System Security Guideline to separate the 132kV network and therefore manage an orderly separation of SA from the NEM.
Mya San
AEMO Operations
The Tailem Bend - South East 275kV No 1 line and Tailem Bend 275kV West Bus in South Australia (SA) region are planned to be out of service from 0800 hrs on 04/06/2018 to 1730 hrs on 15/06/2018.
During this outage, SA will remain connected to the rest of the NEM via the Tailem Bend - South East 275kV No 2 line and the 132kV network.
A credible contingency event on the Tailem Bend - South East 275kV No 2 line or Tailem Bend - Tunkillo 275 kV line during this planned outage will sever the 275kV connections between the NEM and SA. If SA remains connected to the NEM via the 132kV network, this will pose a system security issue.
If one of the above credible contingencies occurs, 35 MW of raise and lower regulation FCAS will be sourced from within SA.
If this occurs, AEMO will take all necessary steps as outlined in Section 6.1 of SO-OP-3715 Power System Security Guideline to separate the 132kV network and therefore manage an orderly separation of SA from the NEM.
Mya San
AEMO Operations