Market Notices

59952RECLASSIFY CONTINGENCY20/11/2017 11:26:33 PM

Reclassification of a Non-Credible Contingency Event: Ross - Chalumbin No.857 and No.858 275kV lines in QLD 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: QLD

Lines: Ross - Chalumbin No.857 and No.858 275kV lines

Duration: 20/11/17 2325 hrs until further notice
Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
59951RECLASSIFY CONTINGENCY20/11/2017 11:26:16 PM

Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 and No.7166 132kV lines in QLD 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: QLD

Lines: Chalumbin - Turkinje No.7165 and No.7166 132kV lines

Duration: 20/11/2017 2325 hrs until further notice

Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
59950RECLASSIFY CONTINGENCY20/11/2017 07:05:56 PM

Cancellation of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 and No.7166 132kV lines in QLD due to lightning.

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: QLD

Lines: Chalumbin - Turkinje No.7165 and No.7166 132kV lines

Cancellation time: 19:00 hrs 20/11/17
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 59948

Manager NEM Real Time Operations
59949INTER-REGIONAL TRANSFER20/11/2017 05:45:23 PM

Inter regional transfer limit variation - South Morang No. 1 330 kV Bus - Vic region

AEMO ELECTRICITY MARKET NOTICE

Inter regional transfer limit variation - South Morang No. 1 330 kV Bus - Vic region

There is a short notice outage required for the South Morang No. 1 330 kV Bus which includes the South Morang H1 330/220 kV Transformer.

The following constraint set is invoked from 1830 hrs 20/11/2017.
V-SMTS_HTX_R

The constraint set includes equations with the following interconnectors on the LHS:

T-V-MNSP1
V-S-MNSP1
V-SA
VIC1-NSW1

Refer to the NOS for further details.

Manager NEM Real Time Operations
59948RECLASSIFY CONTINGENCY20/11/2017 02:41:08 PM

Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 and No.7166 132kV lines in QLD 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: QLD

Lines: Chalumbin - Turkinje No.7165 and No.7166 132kV lines

Duration: 20/11/2017 1435 hrs until further notice

Constraint set(s) invoked: Nil

Manager NEM Real Time Operations
59947RESERVE NOTICE20/11/2017 02:33:09 PM

STPASA - Cancellation of the Forecast Lack Of Reserve Level 1 (LOR1) in the Vic region beginning on 21/11/2017

AEMO ELECTRICITY MARKET NOTICE

The Forecast LOR1 condition in the Victoria region advised in AEMO Electricity Market Notice No. 59939 is cancelled at 1400 hrs 20/11/2017.

No LOR condition is currently forecast in the STPASA period.

Harmohan Singh
AEMO Operations
59946RECLASSIFY CONTINGENCY19/11/2017 11:27:54 PM

Cancellation of a Non-Credible Contingency Event: Moranbah - Goonyella No.7369 and No.7370 132kV lines in QLD 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: QLD

Lines: Moranbah - Goonyella No.7369 and No.7370 132kV lines

Cancellation time: 2320 hrs 19/11/17
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 59940

Manager NEM Real Time Operations
59945RECLASSIFY CONTINGENCY19/11/2017 11:27:38 PM

Cancellation of a Non-Credible Contingency Event: Chinchilla - Columboola No.7349 and No.7350 132kV lines in QLD 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: QLD

Lines: Chinchilla - Columboola No.7349 and No.7350 132kV lines

Cancellation time: 2320 hrs

Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 59945

Manager NEM Real Time Operations
59944RECLASSIFY CONTINGENCY19/11/2017 11:27:21 PM

Cancellation of a Non-Credible Contingency Event: Tarong - Chinchilla 7168 and 7183 132 kV Lines in Queensland 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: Qld

Lines: Tarong - Chinchilla 7168 and 7183 132 kV Lines

Cancellation time:2320 hrs
Constraint set(s) revoked: Nil

Refer AEMO Electricity Market Notice 59936

Manager NEM Real Time Operations
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