Market Notices

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
54416RECLASSIFY CONTINGENCY12/07/2016 08:50:49 AM

Lightning is occurring near the Farrell - Sheffield No. 1 and No. 2 220 kV Lines.

AEMO ELECTRICITY MARKET NOTICE

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

Lightning is occurring near the Farrell - Sheffield No. 1 and No. 2 220 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 0845 hrs 12 July 2016 until further notice.

Constraint Sets:
F-T-FASH_N-2
F-FASH_N-2_HM_C invoked

These Constraint Sets contain equations with the following interconnector on the LHS.
T-V-MNSP1


Manager NEM Real Time Operations
54415RECLASSIFY CONTINGENCY12/07/2016 08:12:41 AM

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

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.

Lightning is occurring near the Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 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 0805 hrs 12 July 2016 until further notice.


Manager NEM Real Time Operations
54224RECLASSIFY CONTINGENCY05/07/2016 08:35:17 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.

Refer AEMO Electricity Market Notice 54223

There is no longer any lightning activity in the vicinity of the Rowville - Yallourn No.5 & No.6 220 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 2030 hrs.

Constraint Set

V-ROYP56_R_N-2 revoked.


Manager NEM Real Time Operations
54223RECLASSIFY CONTINGENCY05/07/2016 06:44:00 PM

Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.

Lightning is occurring near the Rowville - Yallourn No.5 & No.6 220 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 1845 hrs 5/07/2016 until further notice.

Constraint Set

V-ROYP56_R_N-2 invoked.


Manager NEM Real Time Operations
54127RECLASSIFY CONTINGENCY24/06/2016 02:58:23 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.

Refer AEMO Electricity Market Notice 54126

There is no longer any lightning activity in the vicinity of the Rowville - Yallourn No.5 & No.6 220 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1500 hrs.

Constraint Set

V-ROYP56_R_N-2 revoked.


Manager NEM Real Time Operations
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