Market Notices

60046RECLASSIFY CONTINGENCY27/11/2017 12:32:31 AM

Cancellation of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and No. 2 220kV lines in TAS due to lightning.

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of reclassification of a non-credible contingency event as a credible contingency event due to lightning.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: TAS

Lines: Farrell - Sheffield No. 1 and No. 2 220kV lines

Cancellation time: 0030 hrs 27/11/207
Constraint set(s) revoked:T-FASH_N-2_HM_C_2
T-NIL_WCP_CLOSE

Refer AEMO Electricity Market Notice 60043

Manager NEM Real Time Operations
60045RECLASSIFY CONTINGENCY27/11/2017 12:32:07 AM

Cancellation of a Non-Credible Contingency Event: Farrell - John Butter 220kV line and Farrell - Roseberry Tee Queenstown - Newtown 110kV line in TAS due to lightning

AEMO ELECTRICITY MARKET NOTICE.

Cancellation of reclassification of a non-credible contingency event as a credible contingency event due to lightning.

AEMO considers the simultaneous trip of the following circuits is no longer reasonably possible. There is no longer any lightning activity in the vicinity of the following lines. Accordingly its classification has reverted to a non-credible contingency event.

Region: TAS

Lines: Farrell - John Butter 220kV line and Farrell - Roseberry Tee Queenstown - Newtown 110kV line

Cancellation time: 0030 hrs 27/11/2017
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 60040

Manager NEM Real Time Operations
60044RECLASSIFY CONTINGENCY26/11/2017 07:20:54 PM

Reclassification of a Non-Credible Contingency Event: Farrell - Reece No. 1 and No. 2 220kV lines in TAS due to lightning.


AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to lightning.

AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: TAS

Lines: Farrell - Reece No. 1 and No. 2 220kV lines

Duration: 1920 hrs until further notice

Constraint set(s) invoked: F-T-FARE_N-2

Manager NEM Real Time Operations
60043RECLASSIFY CONTINGENCY26/11/2017 07:10:15 PM

Reclassification of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and No. 2 220kV lines in TAS due to lightning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a non-credible contingency event as a credible contingency event due to lightning.

AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: TAS

Lines: Farrell - Sheffield No. 1 and No. 2 220kV lines

Duration: 1900 hrs until further notice
Constraint set(s) invoked: T-FASH_N-2_HM_C_2
T-NIL_WCP_CLOSE

Manager NEM Real Time Operations
60042RECLASSIFY CONTINGENCY26/11/2017 04:35:55 PM

Cancellation - Reclassification of a Non Credible Contingency Event: South East 275/132 kV No. 2 Transformer and both the South East No.1 and No.2 275 kV SVCs.

AEMO ELECTRICITY MARKET NOTICE

Cancellation - Reclassification of a Non Credible Contingency Event: South East 275/132 kV No. 2 Transformer and both the South East No.1 and No.2 275 kV SVCs.

Refer to AEMO Electricity Market Notice 60036

AEMO has cancelled the reclassification for the simultaneous trip of the South East No.2 275/132 Transformer and both SVCs to be a credible contingency at 1626 hrs 26/11/2017.

Refer to AEMO Network Outage Scheduler (NOS) for outage details.

Manager NEM Real Time Operations



60041INTER-REGIONAL TRANSFER26/11/2017 04:24:07 PM

Management of South Australia Power System Security - Severe Weather Warning - Sunday, 26 November 2017

AEMO ELECTRICITY MARKET NOTICE

Management of South Australia Power System Security - Severe Weather Warning - Sunday, 26 November 2017

AEMO has determined that the severe weather warning issued by the BOM presents added risks to the power system in South Australia.

To manage power system security, AEMO has applied a network constraint to limit the flow on the VIC-SA interconnector in the Victoria to South Australia direction.

The following constraint set was invoked at 1620 hrs and will remain in place until further notice.

I-VS_250

The constraint set contains equations with the following interconnectors on the LHS.
V-SA


Manager NEM Real Time Operations

60040RECLASSIFY CONTINGENCY26/11/2017 01:51:09 PM

Reclassification of a Non-Credible Contingency Event: Farrell-John Butters 220kV line and Farrell-Roseberry Tee Queenstown-Newton 110kV line in TAS due to lightning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: TAS

Lines: Farrell-John Butters 220kV line and Farrell-Roseberry Tee Queenstown-Newton 110kV line.

Duration: 1340 hrs until further notice

Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
60039MARKET SYSTEMS26/11/2017 12:23:15 PM

CHG0045951: Rescheduled - Gas Full Retail Contestability (GFRC) system - Site Transfer from QLD to NSW - Completed

Change Number: CHG0045951

Notification issued to: Market Notice

Notification Type: Completed

Change Type: Normal

Service/ Component: Gas FRC - CATS

Change Title: Rescheduled - Gas Full Retail Contestability (GFRC) system - Site Transfer from QLD to NSW

Change Description:
Successfully completed

Support Information:
Report any impacts to the AEMO Information and Support Hub or on External 1300 236 600.
60038RECLASSIFY CONTINGENCY26/11/2017 11:13:32 AM

Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No. 1 220 kV line and Dederang - Glenrowan No. 3 220 kV line in VIC due to Lightning.

AEMO ELECTRICITY MARKET NOTICE.

Reclassification of a Non-Credible Contingency Event as a Credible Contingency Event due to Lightning. AEMO considers the simultaneous trip of the following circuits to now be more likely and reasonably possible. Accordingly AEMO has reclassified it as a credible contingency event.

Region: VIC

Lines: Dederang - Dederang - Glenrowan No. 1 220 kV line and Dederang - Glenrowan No. 3 220 kV line.

Duration: 1105 hrs until further notice

Constraint set(s) invoked: V-DDGN_N-2

Manager NEM Real Time Operations

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