Appropriate bulk and traction power supplies for the sunbury electrification project, Melbourne, Australia

This paper will discuss the development of an appropriate bulk and traction power supply solution for the Sunbury Electrification Project. This project extends the existing electrified Melbourne rail system from Watergardens to Sunbury - approximately 15km further to the north-west towards Bendigo. The work is presently well advanced in construction and it is planned to open the extension of the electrification in the spring of 2012. In this part of Victoria the sub-transmission system voltage level is 66kV with HV distribution at 22kV. The Melbourne system is electrified at 1500V DC. The project ultimately settled on an arrangement with five single unit substations fed from a new rail-network-owned 22kV ring which links two of the distributor’s zone substations. This configuration is something of a “back to the future” solution – the Melbourne rail system originally had an extensive 22kV network of its own. Over the years this has been diminished with many traction substations now simply tee’d off the electricity distributor’s local 22kV distribution feeders. Consideration of the network incident history in the area and the potential non-independent failures led to a return to a railway owned 22kV solution. This paper discusses the considerations that drove this solution and the features, such as protection arrangements, that were needed to make it viable. It also touches on the process used to model the various contingencies that were considered on the 1500V DC system.

Media Info

  • Pagination: 11p. ; PDF
  • Monograph Title: Rail - the core of integrated transport: CORE 2012: conference on railway engineering, 7-10 September 2012, Perth, Western Australia

Subject/Index Terms

Filing Info

  • Accession Number: 01532194
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Jul 29 2014 12:00PM