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        • 67310 18 Feb 2019 15:37 RECLASSIFY CONTINGENCY
        • 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: 18/02/2019 15:37 until further notice

          Constraint set(s) invoked:
          NONE

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 67309 18 Feb 2019 7:50 NON-CONFORMANCE
        • NON-CONFORMANCE Region VIC1 Monday, 18 February 2019

          AEMO ELECTRICITY MARKET NOTICE

          NON-CONFORMANCE VIC1 Region Monday, 18 February 2019

          AEMO declared a schedule generating unit non-conforming

          Unit: BANN1
          Duration: 18/02/2019 07:45 to 18/02/2019 07:50
          Amount: 14 MW
          Constraint: NC-V_BANN1

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 67308 18 Feb 2019 5:14 RECLASSIFY CONTINGENCY
        • Update - Non-credible contingency event - Tasmania region - 18/02/2019

          AEMO ELECTRICITY MARKET NOTICE.

          Update - Non-credible contingency event - Tasmania region - 18/02/2019

          Refer AEMO ELECTRICITY MARKET NOTICE MN 67307

          At 0059 hrs the Sheffield - Wesley Vale tripped and auto reclosed, the Sheffield - Devonport tripped, auto reclosed and opened at Devonport and the Devonport No1 and No2 132/22 kV transformers tripped

          The cause of this non credible contingency event is not known at this stage.
          AEMO is not satisfied that this non credible event is unlikely to re-occur.
          AEMO has therefore reclassified this event as a credible contingency event until further notice.

          Manager NEM Real Time Operations

        • 67307 18 Feb 2019 5:03 RECLASSIFY CONTINGENCY
        • Non-credible contingency event - Tasmania region - 18/02/2019

          AEMO ELECTRICITY MARKET NOTICE.

          Non-credible contingency event - Tasmania region - 18/02/2019

          At 0059 hrs the Sheffield - Wesley Vale tripped and auto reclosed, the Sheffield - Devonport tripped, auto reclosed and opened at Devonport and the Devonport No1 and No2 132/22 kV transformers tripped

          AEMO did not instruct load shedding.

          AEMO has been advised of 30 MW disconnection of bulk electrical load.

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


          Manager NEM Real Time Operations

        • 67306 18 Feb 2019 3:49 RECLASSIFY CONTINGENCY
        • Cancellation of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby line and Norwood - Scottsdale line in TAS1 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: TAS1

          Lines: Norwood - Scottsdale - Derby and Norwood - Scottsdale

          Cancellation time: 18/02/2019 03:48

          Constraint set(s) revoked:
          NONE

          Refer AEMO Electricity Market Notice 67304

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 67305 18 Feb 2019 2:59 RECLASSIFY CONTINGENCY
        • Cancellation of a Non-Credible Contingency Event: Farrell-Sheffield No.1 220 kV line and Farrell-Sheffield No.2 220 kV line in TAS1 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: TAS1

          Lines: Farrell-Sheffield No.1 220 kV and Farrell-Sheffield No.2 220 kV

          Cancellation time: 18/02/2019 02:58

          Constraint set(s) revoked:
          F-T-FASH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
          T-V-MNSP1
          T-FASH_N-2_CP4_S1 Constraint set contains the following interconnector(s) on the left hand side:
          NONE
          T-NIL_WCP_CLOSE Constraint set contains the following interconnector(s) on the left hand side:
          NONE


          Refer AEMO Electricity Market Notice 67303

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 67304 18 Feb 2019 1:44 RECLASSIFY CONTINGENCY
        • Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby line and Norwood - Scottsdale line in TAS1 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: TAS1

          Lines: Norwood - Scottsdale - Derby and Norwood - Scottsdale

          Duration: 18/02/2019 01:44 until further notice

          Constraint set(s) invoked:
          NONE

          Auto-generated on behalf of Manager NEM Real Time Operations

        • 67303 18 Feb 2019 0:56 RECLASSIFY CONTINGENCY
        • Reclassification of a Non-Credible Contingency Event: Farrell-Sheffield No.1 220 kV line and Farrell-Sheffield No.2 220 kV line in TAS1 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: TAS1

          Lines: Farrell-Sheffield No.1 220 kV and Farrell-Sheffield No.2 220 kV

          Duration: 18/02/2019 00:56 until further notice

          Constraint set(s) invoked:
          F-T-FASH_N-2 Constraint set contains the following interconnector(s) on the left hand side:
          T-V-MNSP1
          T-FASH_N-2_CP4_S1 Constraint set contains the following interconnector(s) on the left hand side:
          NONE
          T-NIL_WCP_CLOSE Constraint set contains the following interconnector(s) on the left hand side:
          NONE


          Auto-generated on behalf of Manager NEM Real Time Operations

        • 67302 17 Feb 2019 22:04 RECLASSIFY CONTINGENCY
        • 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: 17/02/2019 22:03

          Constraint set(s) revoked:
          NONE

          Refer AEMO Electricity Market Notice 67300

          Auto-generated on behalf of Manager NEM Real Time Operations

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