Cultana Augmentation

The Cultana Substation Augmentation Project forms a key element of ElectraNet's broader operational network strategy to reinforce electricity supply to the Eyre Peninsula of South Australia 

The customer

ElectraNet delivers safe, affordable and reliable solutions to power South Australian homes and businesses. Their transmission network is a crucial part of the electricity supply chain and is used to safely deliver electricity throughout South Australia including regional and remote areas. ElectraNet specialise in asset and project management, contract management and their clients include SA Power Networks, Enerven and large directly connected clients.

The opportunity

ElectraNet had a requirement to reinforce the electricity supply to the Eyre Peninsula of South Australia. ElectraNet contracted Enerven to design, construct and deliver this project to a specific timeframe, taking into consideration the culturally sensitive environment.

The solution

There were a number of key deliverables required for this project. The first access road to the substation required upgrading as it was not suitable for the required equipment to travel on. The scope of works then included the design and construction of the following:

• Installation of two 200MVA transformers.
• One new diameter of 275kV switchgear (breaker and a half); 
• and two new diameters of 132kV switchgear (breaker and a half).

There was a requirement for diversification of interrelated lines including double circuit upgrade of the existing 275kV line to Davenport Substation, connection of a 132kV line to Yadnarie Substation, and establishing a 132kV bypass line between Playford, Whyalla and Yadnarie Substations. It was necessary to upgrade all control systems to IEC 61850, in both greenfield and brownfield applications. We installed new oil/water separation units and connected AC/DC supplies. As the works were undertaken in a culturally and environmentally sensitive area, it was imperative that high standards were upheld during this project.

Enerven was able to utilise a number of key resources and subcontractors to deliver this project safely, and to the required timeframe required by ElectraNet.