Market Notices

72204POWER SYSTEM EVENTS30/12/2019 09:17:57 PM

Non-credible contingency event - Victoria region - Monday, 30 December 2019

AEMO ELECTRICITY MARKET NOTICE

Non-credible contingency event - Victoria region - Monday, 30 December 2019

At 1923 hrs the Jeeralang N01 220 kV Busbar tripped.


The cause of this non credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.


Manager NEM Real Time Operations



72093POWER SYSTEM EVENTS27/12/2019 01:39:05 PM

Update - Non-credible contingency event - NSW region - 21/12/2019

AEMO ELECTRICITY MARKET NOTICE.

At 1958 hrs on 21/12/2019 the Bayswater- Mt Piper 5A3 and Mt Piper - Wollar 5A4 500 kV Lines and the Mt Piper No. 1 Gen tripped.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations

72090POWER SYSTEM EVENTS27/12/2019 12:55:39 PM

Update - Non-credible contingency event - SA region - 20/12/2019

AEMO ELECTRICITY MARKET NOTICE.

Refer AEMO ELECTRICITY MARKET NOTICE MN 71964

At 1243 hrs the Agnas Ck - Para 132 kV Line was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
71999POWER SYSTEM EVENTS21/12/2019 08:17:40 PM

Non-credible contingency event - NSW region - 21/12/2019


AEMO ELECTRICITY MARKET NOTICE.

Non-credible contingency event - NSW region - 21/12/2019

At 1958 hrs the Bayswater- Mt Piper 5A3 and Mt Piper - Wollar 5A4 500kv Lines and the Mt Piper No 1 Gen tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.


The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
71998POWER SYSTEM EVENTS21/12/2019 07:55:51 PM

Update - Non-credible contingency event - NSW region - 21/12/2019

AEMO ELECTRICITY MARKET NOTICE.

Update - Non-credible contingency event - NSW region - 21/12/2019

Refer AEMO ELECTRICITY MARKET NOTICE MN 71993

At 1948 hrs the Muswellbrook No 1 330/132 kV Transformer was returned to service.

The cause of this non-credible contingency event has been identified and AEMO is satisfied that another occurrence of this event is unlikely under the current circumstances.

AEMO will not reclassify this event as a credible contingency event.

Manager NEM Real Time Operations
71993POWER SYSTEM EVENTS21/12/2019 05:12:20 PM

Correction -Non-credible contingency event - NSW region - 21/12/2019

AEMO ELECTRICITY MARKET NOTICE

Correction -Non-credible contingency event - NSW region - 21/12/2019


Refer AEMO Electricity Market Notice 71992


At 1631 hrs the Mt Piper - Wollar 5A5 500 kV Line tripped and reclosed and the Muswellbrook No1 330 /132 kV Transformer tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations




71992POWER SYSTEM EVENTS21/12/2019 05:06:58 PM

Non-credible contingency event - NSW region - 21/12/2019

AEMO ELECTRICITY MARKET NOTICE

Non-credible contingency event - NSW region - 21/12/2019


At 1631 hrs the Mt Piper - Wollar 5A5 330 kV Line tripped and reclosed and the Muswellbrook No1 330 /132 kV Transformer tripped.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage and is being investigated.


Manager NEM Real Time Operations


71964POWER SYSTEM EVENTS20/12/2019 11:39:43 PM

Correction - Non-credible contingency event - SA region - 20/12/2019

AEMO ELECTRICITY MARKET NOTICE.

Correction to event time

At 2040 hrs the Angas Ck - Para 132 kV Line tripped and the Angas Ck - Mannum 132 kV line tripped at the Angas Ck end only.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations
71960POWER SYSTEM EVENTS20/12/2019 10:21:11 PM

Non-credible contingency event - SA region - 20/12/2019

AEMO ELECTRICITY MARKET NOTICE.

At 2113 hrs the Angas Ck - Para 132 kV Line tripped and the Angas Ck - Mannum 132 kV line tripped at the Angas Ck end only.

AEMO did not instruct load shedding.

AEMO has not been advised of any disconnection of bulk electrical load.

The cause of this non credible contingency event is not known at this stage.


Manager NEM Real Time Operations

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