Market Notices

53425RECLASSIFY CONTINGENCY19/05/2016 10:51:44 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 53412

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 1040 hrs.

Constraint Sets T-FASH_N-2_HM_C F-T-FASH_N-2 revoked @ 1050.


Manager NEM Real Time Operations
53424RECLASSIFY CONTINGENCY19/05/2016 10:51:28 AM

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Cancellation of the Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

Refer AEMO Electricity Market Notice 53410

There is no longer any lightning activity in the vicinity of the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line.

AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 1040hrs.


Manager NEM Real Time Operations
53423RECLASSIFY CONTINGENCY19/05/2016 10:51:13 AM

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

Refer AEMO Electricity Market Notice 53411

There is no longer any lightning activity has ceased in the vicinity of the the Farrell - Reece 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 1040 hrs.

Constraint Sets F-T-FARE_N-2 revoked.


Manager NEM Real Time Operations
53419RECLASSIFY CONTINGENCY19/05/2016 10:41:07 AM

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

AEMO ELECTRICITY MARKET NOTICE

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

Lightning is occurring near the Chapel Street - Liapootah 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 1040 hrs 19 May 2016 until further notice.

Constraint Set T-CSLI_N-2 invoked


Manager NEM Real Time Operations
53412RECLASSIFY CONTINGENCY19/05/2016 10:18:00 AM

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

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 1015 hrs 19 May 2016 until further notice.

Constraint Sets: F-T-FASH_N-2 T-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
53411RECLASSIFY CONTINGENCY19/05/2016 10:14:48 AM

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

AEMO ELECTRICITY MARKET NOTICE

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

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 1015 hrs 19 May 2016 until further notice.

Constraint Set F-T-FARE_N-2 invoked.


Manager NEM Real Time Operations
53410RECLASSIFY CONTINGENCY19/05/2016 10:07:43 AM

Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.

AEMO ELECTRICITY MARKET NOTICE

Reclassification of a Non-Credible Contingency Event: Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 110 kV Line in Tasmania due to Lightning.
Lightning is occurring near the Farrell - John Butters 220 kV Line and the Farrell - Rosebery Tee Queenstown - Newton 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 1010 hrs 19 MAY 2016 until further notice.

Manager NEM Real Time Operations
53401INTER-REGIONAL TRANSFER18/05/2016 05:14:33 AM

Cancellation -Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control

AEMO ELECTRICITY MARKET NOTICE

Cancellation -Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - 18 May 2016

Refer MN 53400

The Tarong to South Pine (832) 275kV Line has been returned to service.

The following constraint set was revoked at 0540 hrs..

Q-TRSP_832

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

N-Q-MNSP1


Manager NEM Real Time Operations
53400INTER-REGIONAL TRANSFER18/05/2016 03:03:57 AM

Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - 18 May 2016

AEMO ELECTRICITY MARKET NOTICE

Inter-regional transfer limit variation - Tarong to South Pine (832) 275kV Line (Qld) - Voltage Control - 18 May 2016

The Tarong to South Pine (832) 275kV Line has been de-energised to manage voltages in the Qld region.

The following constraint set was invoked at 0310 hrs until further notice.

Q-TRSP_832

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

N-Q-MNSP1


Manager NEM Real Time Operations
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