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Cancellation of the reclassification of a non-credible contingency event: Farrell- Reece No.1 and No.2 220 kV lines in Tasmania.
Cancellation of the reclassification of a non-credible contingency event: Farrell- Reece No.1 and No.2 220 kV lines in Tasmania.
Refer AEMO Electricity Market Notice 54576
There is no longer any lightning activity has ceased in the vicinity of the Farrell- Reece No.1 and No.2 220 kV lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 0225 hrs.
Constraint Sets F-T-FARE_N-2 revoked.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line in Tasmania due to Lightning.
Reclassification of a Non-Credible Contingency Event: Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line in Tasmania due to Lightning.
Lightning is occurring near the Norwood - Scottsdale - Derby 110 kV Line and Norwood - Scottsdale 110 kV Line.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 0210 hrs 22/07/16 until further notice.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 kV Lines in Tasmania due to Lightning.
Reclassification of a Non-Credible Contingency Event: Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 kV Lines in Tasmania due to Lightning.
Lightning is occurring near the Burnie - Sheffield No.2 110 kV and Sheffield - Paloona - Ulverstone 110 kV Lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 0120 hrs 22/07/16 until further notice.
Manager NEM Real Time Operations
Reclassification of a Non Credible Contingency Event - Farrell - Sheffield No.1 and No.2 220 kV transmission lines in Tasmania.
Reclassification of a Non Credible Contingency Event - Farrell - Sheffield No.1 and No.2 220 kV transmission lines in Tasmania.
Lightning is occurring near the Farrell - Sheffield No.1 and No.2 220 kV transmission lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 0100 hrs 22/07/16 until further notice.
Constraint Sets: F-T-FASH_N-2, F-T-FASH_N-2_HM_C and T-NIL_WCP_CLOSE invoked
These Constraint Sets contain equations with the following interconnector on the LHS.
T-V-MNSP1
Manager NEM Real Time Operations
Reclassification of a Non Credible Contingency Event: Farrell - Reece No.1 and No.2 220 kV lines in Tasmania.
Reclassification of a Non Credible Contingency Event: Farrell - Reece No.1 and No.2 220 kV lines in Tasmania.
Lightning is occurring near the Farrell- Reece No.1 and No.2 220 kV lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 0100 hrs 22/07/16 until further notice.
Constraint Set F-T-FARE_N-2 invoked.
Cancellation of the Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.
Cancellation of the Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.
Refer AEMO Electricity Market Notice 54574
There is no longer any lightning activity in the vicinity of the Rowville - Yallourn No.5 & No.6 220 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 2235 hrs.
Constraint Set
V-ROYP56_R_N-2 revoked.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.
Reclassification of a Non-Credible Contingency Event: Rowville - Yallourn No.5 & No.6 220 kV Lines in Victoria due to Lightning.
Lightning is occurring near the Rowville - Yallourn No.5 & No.6 220 kV Lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 2155 hrs 21/07/2016 until further notice.
Constraint Set
V-ROYP56_R_N-2 invoked.
Manager NEM Real Time Operations
Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
Cancellation of the Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
Refer to AEMO Electricity Market Notice no. 54530
There is no longer any Lightning activity in the vicinity of the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines.
AEMO has cancelled the reclassification of the simultaneous trip of those circuits as a credible contingency event at 2250 hrs.
Manager NEM Real Time Operations
Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
Reclassification of a Non-Credible Contingency Event: Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines in Queensland due to Lightning.
Lightning is occurring near the Bouldercombe - Rockhampton 7108 and Bouldercombe - Egans Hill 7221 132 kV Lines.
AEMO considers the simultaneous trip of those circuits to now be more likely.
Therefore AEMO has reclassified this as a credible contingency event from 2110 hrs 16/07/16 until further notice.
Manager NEM Real Time Operations