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74185NON-CONFORMANCE17/02/2020 08:40:19 AM
NON-CONFORMANCE Region VIC1 Monday, 17 February 2020
AEMO ELECTRICITY MARKET NOTICE
NON-CONFORMANCE VIC1 Region Monday, 17 February 2020
AEMO declared a schedule generating unit non-conforming
Unit: LYA2
Duration: 17/02/2020 08:35 to 17/02/2020 08:40
Amount: -130 MW
Constraint: NC-V_LYA2
Auto-generated on behalf of Manager NEM Real Time Operations
NON-CONFORMANCE VIC1 Region Monday, 17 February 2020
AEMO declared a schedule generating unit non-conforming
Unit: LYA2
Duration: 17/02/2020 08:35 to 17/02/2020 08:40
Amount: -130 MW
Constraint: NC-V_LYA2
Auto-generated on behalf of Manager NEM Real Time Operations
74184RECLASSIFY CONTINGENCY17/02/2020 07:11:58 AM
Reclassification of a Non-Credible Contingency Event - Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines. NSW 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 5A3 and Wollar - Mt Piper 5A5 500 kV Lines
Duration: 17/02/2020 0700 hrs until further notice
Constraint set(s) invoked:
NONE
Manager NEM Real Time Operations
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 5A3 and Wollar - Mt Piper 5A5 500 kV Lines
Duration: 17/02/2020 0700 hrs until further notice
Constraint set(s) invoked:
NONE
Manager NEM Real Time Operations
74183GENERAL NOTICE17/02/2020 07:01:54 AM
Update - Vulnerable lines in NSW region.
AEMO ELECTRICITY MARKET NOTICE.
Vulnerable lines in NSW region.
Refer to AEMO Electiricity Market Notices 74180.and 74182
At 0519 hrs the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines tripped and auto reclosed.
The cause of trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
Vulnerable lines in NSW region.
Refer to AEMO Electiricity Market Notices 74180.and 74182
At 0519 hrs the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines tripped and auto reclosed.
The cause of trip was identified as due to lightning.
In accordance with SO_OP_3715, AEMO now considers the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines to be vulnerable with a category of probable due to lightning.
Manager NEM Real Time Operations
74182POWER SYSTEM EVENTS17/02/2020 07:01:19 AM
Update - Non-credible contingency event - NSW region - 17/02/2020
AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - NSW region - 17/02/2020
Refer AEMO ELECTRICITY MARKET NOTICE 74180
At 0519 hrs the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines tripped and auto reclosed.
The cause of this non credible contingency event has been identified as due to lightning.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO will therefore reclassify this event as a credible contingency event when lightning is in the vicinity.
Manager NEM Real Time Operations
Update - Non-credible contingency event - NSW region - 17/02/2020
Refer AEMO ELECTRICITY MARKET NOTICE 74180
At 0519 hrs the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines tripped and auto reclosed.
The cause of this non credible contingency event has been identified as due to lightning.
AEMO is not satisfied that this non credible event is unlikely to re-occur.
AEMO will therefore reclassify this event as a credible contingency event when lightning is in the vicinity.
Manager NEM Real Time Operations
74181RECLASSIFY CONTINGENCY17/02/2020 06:20:55 AM
Cancellation of a Non-Credible Contingency Event: Ross - Chalumbin No.857 275 kV line and Ross - Chalumbin No.858 275 kV 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: Ross - Chalumbin No.857 275 kV and Ross - Chalumbin No.858 275 kV
Cancellation time: 17/02/2020 06:20
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 74160
Auto-generated on behalf of Manager NEM Real Time Operations
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: Ross - Chalumbin No.857 275 kV and Ross - Chalumbin No.858 275 kV
Cancellation time: 17/02/2020 06:20
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 74160
Auto-generated on behalf of Manager NEM Real Time Operations
74180POWER SYSTEM EVENTS17/02/2020 05:43:46 AM
Non-credible contingency event - NSW region - 17/02/2020
AEMO ELECTRICITY MARKET NOTICE.
Non-credible contingency event - NSW region - 17/02/2020
At 0519 hrs the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines tripped and auto reclosed.
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
Non-credible contingency event - NSW region - 17/02/2020
At 0519 hrs the Bayswater - Mt Piper 5A3 and Wollar - Mt Piper 5A5 500 kV Lines tripped and auto reclosed.
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
74179RECLASSIFY CONTINGENCY17/02/2020 04:54:30 AM
Cancellation of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 132 kV 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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 17/02/2020 04:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 74177
Auto-generated on behalf of Manager NEM Real Time Operations
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: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Cancellation time: 17/02/2020 04:54
Constraint set(s) revoked:
NONE
Refer AEMO Electricity Market Notice 74177
Auto-generated on behalf of Manager NEM Real Time Operations
74178RECLASSIFY CONTINGENCY16/02/2020 11:52:50 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: 16/02/2020 23:52
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 74164
Auto-generated on behalf of Manager NEM Real Time Operations
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: 16/02/2020 23:52
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 74164
Auto-generated on behalf of Manager NEM Real Time Operations
74177RECLASSIFY CONTINGENCY16/02/2020 11:52:50 PM
Reclassification of a Non-Credible Contingency Event: Chalumbin - Turkinje No.7165 132 kV line and Chalumbin - Turkinje No.7166 132 kV line in QLD1 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: QLD1
Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 16/02/2020 23:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations
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: QLD1
Lines: Chalumbin - Turkinje No.7165 132 kV and Chalumbin - Turkinje No.7166 132 kV
Duration: 16/02/2020 23:52 until further notice
Constraint set(s) invoked:
NONE
Auto-generated on behalf of Manager NEM Real Time Operations