Market Notices

54459RECLASSIFY CONTINGENCY12/07/2016 07:35:13 PM

Reclassification of a Non Credible Contingency Event: Farrell-John Butters 220kV line and the Farrell-Roseberry Tee Queenstown-Newton 110kV line in Tasmania.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non Credible Contingency Event: Farrell-John Butters 220kV line and the Farrell-Roseberry Tee Queenstown-Newton 110kV line in Tasmania.

Lightning is occurring near the Farrell-John Butters 220kV line and the Farrell-Rosebery Tee Queenstown-Newton 110kV line.

AEMO considers the simultaneous trip of those circuits to now be more likely.

Therefore AEMO has reclassified this as a credible contingency event from 1930 hrs 12/07/16 until further notice.


Manager NEM Real Time Operations
54456RECLASSIFY CONTINGENCY12/07/2016 06:12:07 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line in Tasmania due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 54454
There is no longer any lightning activity in the vicinity of the Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1810 hrs.


Manager NEM Real Time Operations
54454RECLASSIFY CONTINGENCY12/07/2016 05:32:49 PM

Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line in Tasmania due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line in Tasmania due to Lightning.

Lightning is occurring near the Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line.

AEMO considers the simultaneous trip of those circuits to now be more likely.

Therefore AEMO has reclassified this as a credible contingency event from 1730 hrs 12 July 2016 until further notice.


Manager NEM Real Time Operations
54453RECLASSIFY CONTINGENCY12/07/2016 04:49:48 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 and No.3 220 kV Lines in Victoria due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 and No.3 220 kV Lines in Victoria due to Lightning.

Refer AEMO Electricity Market Notice 54441

There is no longer any lightning activity in the vicinity of the Dederang - Glenrowan No.1 and No.3 220 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1650 hrs.

Constraint Set V-DDGN_N-2 revoked.


Manager NEM Real Time Operations
54441RECLASSIFY CONTINGENCY12/07/2016 02:52:42 PM

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

AEMO ELECTRICITY MARKET NOTICE

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

Lightning is occurring near the Dederang - Glenrowan No. 1 and No. 3 220 kV Lines.

AEMO considers the simultaneous trip of those circuits to now be more likely.

Therefore AEMO has reclassified this as a credible contingency event from 1450hrs 12 July 2016 until further notice.

Constraint Set V-DDGN_N-2 invoked.

This Constraint Set contains equations with the following interconnectors on the LHS.
V-S-MNSP1
V-SA
VIC1-NSW1


Manager NEM Real Time Operations
54439RECLASSIFY CONTINGENCY12/07/2016 02:18:34 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 and No.3 220 kV Lines in Victoria due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Dederang - Glenrowan No.1 and No.3 220 kV Lines in Victoria due to Lightning.

Refer AEMO Electricity Market Notice 54436

There is no longer any lightning activity in the vicinity of the Dederang - Glenrowan No.1 and No.3 220 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1415 hrs.

Constraint Set V-DDGN_N-2 revoked.


Manager NEM Real Time Operations
54436RECLASSIFY CONTINGENCY12/07/2016 01:29:58 PM

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

AEMO ELECTRICITY MARKET NOTICE

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

Lightning is occurring near the Dederang - Glenrowan No. 1 and No. 3 220 kV Lines.

AEMO considers the simultaneous trip of those circuits to now be more likely.

Therefore AEMO has reclassified this as a credible contingency event from 1330 hrs 12 July 2016 until further notice.

Constraint Set V-DDGN_N-2 invoked.

This Constraint Set contains equations with the following interconnectors on the LHS.
V-S-MNSP1
V-SA
VIC1-NSW1


Manager NEM Real Time Operations
54431RECLASSIFY CONTINGENCY12/07/2016 10:22:56 AM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and No. 2 220 kV Lines in Tasmania due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - Sheffield No. 1 and No. 2 220 kV Lines in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 54416

There is no longer any lightning activity in the vicinity of the Farrell - Sheffield No. 1 and No. 2 220 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1025 hrs.

Constraint Sets
F-T-FASH_N-2
F-FASH_N-2_HM_C revoked.


Manager NEM Real Time Operations
54429RECLASSIFY CONTINGENCY12/07/2016 09:34:32 AM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 kV Lines in Tasmania due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 kV Lines in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 54415

There is no longer any lightning activity in the vicinity of the Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0930 hrs.


Manager NEM Real Time Operations
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