Market Notices

75691RECLASSIFY CONTINGENCY09/05/2020 10:14:10 PM

Cancellation of a Non-Credible Contingency Event: Bulli Creek - Dumaresq 8L 330KV line and Bulli Creek - Dumaresq 8M 330KV line in QLD1 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: QLD1

Lines: Bulli Creek - Dumaresq 8L 330KV and Bulli Creek - Dumaresq 8M 330KV

Cancellation time: 09/05/2020 22:14

Constraint set(s) revoked:
I-QNI_ONE_PHASE_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NSW1-QLD1


Refer AEMO Electricity Market Notice 75676

Auto-generated on behalf of Manager NEM Real Time Operations
75690RECLASSIFY CONTINGENCY09/05/2020 09:54:13 PM

Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 09/05/2020 21:54

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 75688

Auto-generated on behalf of Manager NEM Real Time Operations
75689INTER-REGIONAL TRANSFER09/05/2020 08:51:47 PM

Inter-Regional Transfer limit variation - Avon to Macarthur 17 330kV Line NSW region

AEMO ELECTRICITY MARKET NOTICE

Inter-Regional Transfer limit variation - Avon to Macarthur 17 330kV Line NSW region

An unplanned outage of Avon to Macarthur 17 330kV Line occurred at 2028 hrs.

Constraint set N-X_DTSS_AVMA invoked at 2035 hrs

The constraint has the following interconnectors on the LHS

VIC-NSW1
N-Q-MNSP1
NSW1-QLD

Refer to AEMO Network Outage Scheduler (NOS) for more details.


Manager NEM Real Time Operations





75688RECLASSIFY CONTINGENCY09/05/2020 08:49:25 PM

Reclassification of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Duration: 09/05/2020 20:49 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
75687RECLASSIFY CONTINGENCY09/05/2020 08:34:14 PM

Cancellation of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1

Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV

Cancellation time: 09/05/2020 20:34

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 75686

Auto-generated on behalf of Manager NEM Real Time Operations
75686RECLASSIFY CONTINGENCY09/05/2020 07:32:14 PM

Reclassification of a Non-Credible Contingency Event: Eildon PS - Mt Beauty No.1 220 kV line and Eildon PS - Mt Beauty No.2 220 kV line in VIC1 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: VIC1

Lines: Eildon PS - Mt Beauty No.1 220 kV and Eildon PS - Mt Beauty No.2 220 kV

Duration: 09/05/2020 19:32 until further notice

Constraint set(s) invoked:
NONE

Auto-generated on behalf of Manager NEM Real Time Operations
75685RECLASSIFY CONTINGENCY09/05/2020 05:04:10 PM

Cancellation of a Non-Credible Contingency Event: Hazelwood - Rowville No.1 220kV line and Hazelwood - Rowville No.2 220kV line in VIC1 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: VIC1

Lines: Hazelwood - Rowville No.1 220kV and Hazelwood - Rowville No.2 220kV

Cancellation time: 09/05/2020 17:04

Constraint set(s) revoked:
V-HWRO_R_N-2 Constraint set contains the following interconnector(s) on the left hand side:
NONE


Refer AEMO Electricity Market Notice 75675

Auto-generated on behalf of Manager NEM Real Time Operations
75683RECLASSIFY CONTINGENCY09/05/2020 03:44:10 PM

Cancellation of a Non-Credible Contingency Event: Bayswater - Mt Piper No.5A3 500kV line and Wollar - Mt Piper No.5A5 500kV line in NSW1 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: NSW1

Lines: Bayswater - Mt Piper No.5A3 500kV and Wollar - Mt Piper No.5A5 500kV

Cancellation time: 09/05/2020 15:44

Constraint set(s) revoked:
NONE

Refer AEMO Electricity Market Notice 75674

Auto-generated on behalf of Manager NEM Real Time Operations
75681MARKET INTERVENTION09/05/2020 05:56:35 PM

Cancellation: AEMO Intervention Event - Intervention dispatch intervals - Direction SA region - 06/05/2020

AEMO ELECTRICITY MARKET NOTICE

Refer Market Notice 75590

The AEMO Intervention Event and all associated directions are cancelled from 1800 hrs 09/05/2020.

Manager NEM Real Time Operation
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