AEMO ELECTRICITY MARKET NOTICE.
Update - Non-credible contingency event - South Australia region - 02/04/2019
Refer AEMO ELECTRICITY MARKET NOTICE MN 68006
At 0136 hrs 02/04/2019 the Brinkworth - Templers West 275 kV Line tripped, coincident with this at Angaston the No. 1 generator 33kV CB 4555 and the No. 2 generator 33kV CB 4552 opened.
The cause of this non credible contingency event is not known.
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.
The Brinkworth - Templers West 275 kV Line was returned to service following this event at 1528hrs 15/04/2019
Manager NEM Real Time Operations