Charles Sturt University high voltage power supply changes

Charles Sturt University high voltage power supply changes

JRC Electrical undertook a significant project to update underground power to an overhead system for the Charles Sturt University south campus redevelopment.

To allow for a new retirement village and associated buildings, the existing underground high voltage power supply (including two 

pad mount transformers) – which supplied power to various buildings at the site including the Conservatorium of Music, training centre rooms as well as the Mary Mackillop School – needed to be changed.

Due to the civil construction work, electrical services had to be disconnected and a new overhead high voltage system designed and constructed. A new underground low voltage power supply was also required for the Mary Mackillop School, installed via 450 metres of trenching and underboring.

Five new power poles were installed so temporary high voltage and low voltage power supplies could supply the existing buildings while all underground services were disconnected and made redundant. One of the transformers was also decommissioned.

A new overhead infrastructure was installed prior to the site power outage. All affected parties, including Essential Energy, were given notification of the impending 10-hour outage.

On the day of the planned outage, two high voltage cable joints were terminated, one in the existing switchyard and one back into the existing pad mount transformer. Existing high voltage switchgear also had to be disconnected and made redundant for Essential Energy.

The power supply was successfully restored within the planned outage time after an effective transition by the JRC Electrical team.