Market Notices

54578RECLASSIFY CONTINGENCY22/07/2016 01:20:59 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 0120 hrs 22/07/16 until further notice.


Manager NEM Real Time Operations
54577RECLASSIFY CONTINGENCY22/07/2016 01:01:02 AM

Reclassification of a Non Credible Contingency Event - Farrell - Sheffield No.1 and No.2 220 kV transmission lines in Tasmania.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non Credible Contingency Event - Farrell - Sheffield No.1 and No.2 220 kV transmission lines in Tasmania.

Lightning is occurring near the Farrell - Sheffield No.1 and No.2 220 kV transmission 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 0100 hrs 22/07/16 until further notice.

Constraint Sets: F-T-FASH_N-2, F-T-FASH_N-2_HM_C and T-NIL_WCP_CLOSE invoked

These Constraint Sets contain equations with the following interconnector on the LHS.

T-V-MNSP1


Manager NEM Real Time Operations
54576RECLASSIFY CONTINGENCY22/07/2016 12:55:52 AM

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

AEMO ELECTRICITY MARKET NOTICE

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

Lightning is occurring near the Farrell- Reece 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 0100 hrs 22/07/16 until further notice.

Constraint Set F-T-FARE_N-2 invoked.
54575RECLASSIFY CONTINGENCY21/07/2016 10:34:25 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 54574

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 2235 hrs.

Constraint Set

V-ROYP56_R_N-2 revoked.


Manager NEM Real Time Operations
54574RECLASSIFY CONTINGENCY21/07/2016 10:17:54 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 2155 hrs 21/07/2016 until further notice.

Constraint Set

V-ROYP56_R_N-2 invoked.


Manager NEM Real Time Operations
54531RECLASSIFY CONTINGENCY16/07/2016 10:49:55 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

Refer to AEMO Electricity Market Notice no. 54530

There is no longer any Lightning activity in the vicinity of the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 2250 hrs.



Manager NEM Real Time Operations
54530RECLASSIFY CONTINGENCY16/07/2016 09:12:59 PM

Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

Lightning is occurring near the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 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 2110 hrs 16/07/16 until further notice.



Manager NEM Real Time Operations
54525RECLASSIFY CONTINGENCY16/07/2016 05:46:11 PM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

Refer to AEMO Electricity Market Notice no. 54524

There is no longer any Lightning activity in the vicinity of the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1745 hrs.



Manager NEM Real Time Operations
54524RECLASSIFY CONTINGENCY16/07/2016 03:10:19 PM

Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.

Lightning is occurring near the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 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 1510 hrs 16 July 2016 until further notice.



Manager NEM Real Time Operations
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