Aurora - South City Protection Upgrade


Client: Aurora
Project Value: $980k
Completion: August 2022
Project Type: Protection and Control
Our role: Project Management of the execution phase of the contract​

We delivered this project on behalf of Aurora Energy.


As the name suggests South City zone substation supplies the commercial area south of Dunedin City Centre. This project involved modernisation of protection gear, including upgrade of 1970s electromechanical relays, Comms and DC system as well as installation of arc sensors and arc containment panels and doors on the 6.6kV switchgear.


The implementation of this project was challenging due to upgrades taking place on the live operational substation supplying Dunedin’s city centre. The upgrade was phased out into 3 stages, with each bus-section being removed from service and upgrades implemented.