Conpower

Moorabool Terminal Station in Moorabool VIC, houses Victoria’s largest battery and wind farm with 104 turbines generating 312 MW annually, enough to power around 228,000 Victorian homes, representing approximately 10% of the state’s households.

The station, a critical Ausnet asset, underwent a comprehensive protection and control system upgrade across both the 500 kV and 220 kV assets within a live operational environment. The aim of this project is to enhance the reliability and functionality of the terminal station, which connects and feeds the 500 kV network to the west of Victoria and includes the connection to the South Australian interconnector.

Project Updates:
The project recently completed its final outage works, and achieved practical completion on Friday, 13th October 2023. Work continues on-site to finalise all outstanding tasks, including punch list items and variation activities, ensuring the terminal station operates at peak performance.

Reactive Power Support Works

Installation:

• two new single switched 220kV bays within the existing 220kV switchyard and their connection onto the existing No.2 220kV Bus.
• 2 x POW Circuit Breakers, 2 x sets of CTs, 4 x ROIs + ES.
• Gantry and Overhead 220kV Line Conductors + Earthing wire.
• 2 x 135T 220kV 100MVAr Shunt Reactors

Secondary and Protection Equipment:

• Installation 4 x Protection Panels
• Installation 2 x CB Management Panels + POW Relays.

Civil and Structural Works:

• Establishment of a new bench area,
• Excavation and construction of new HV Apparatus footings.
• Bunded Reactor pads including Firewalls.
• Installation of a underground SPEL Puraceptor tank.
• Realign of the existing electric fence and extension of the existing fire service system.

MLTS Protection and Control System Upgrade

Installation & Commissiong:

• Testing & Commissioning of 19x new Protection & Control Panels.
• Decommissioning & removal of 72x existing Protection, Control & Metering panels.
• Replacement of 3x existing Oil Temperature Indicator (OTI) units.
• Conductor & Bus upgrade to 3150A rating in a breaker-and-a-half Bay.
• Modification works on various other secondary schemes to interface with the new schemes.
• Removal of over 50 cubic meters of decommissioned secondary cable.