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Technical-Networking Meetings – April 2021

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Technical-Networking Meetings – April 2021

22 Apr 2021

PWI NSW holds five Technical-Networking Meetings per year to provide members with a technical focus, enhance knowledge sharing and encourage regular networking amongst members.

Technical Meeting Sponsors for 2019 are:

11th March 2021 – Vossloh
22nd April 2021 – Middleton Group
10th June 2021 – Joint IRSE
12th August 2021 – AGM – WSP (TBC)
11th November 2021 – SIMEC (TBC)

Next Technical-Networking Meeting

Thursday 22nd April 2021 @ 5pm

Venue: Online on Microsoft Teams

Proudly sponsored by

Middleton Group is an Australian owned and operated, specialist electrical consulting engineering organisation, providing turnkey solutions in traction power. Our team has extensive experience managing rail projects, and also offer both traction power and rail-related power systems. We have built a reputation of delivering on client expectations with sound technical capability combined with many years of project execution experience.

The April technical meeting is proudly sponsored by Middleton Group. Stephen Goh and Andrew Russack will guide us through the benefits of 25kV AC traction power systems and outline how NSW might be able to make the transition.

Electrifying our future NSW railways – AC and DC railway interfaces

Slab track, or ballastless track, is the proven Currently, DC is the primary method of railway electrification in Australia, but with a growing demand for additional public transport services, there is the constant need to upgrade electrical infrastructure.

A fitting solution is AC electrification, which is a method widely used throughout the world. This presentation will provide an overview of 25kV AC systems, their benefits, and how to effectively interface between new AC and existing DC railway networks.

An overview of the presentation is outlined below:

  • Overview of 25kV AC traction power systems
  • Benefits of 25kV AC traction power systems
  • Interfacing AC / DC systems in NSW
  • How to make the transition
  • Examples of interfaces and what to look out for

Don’t miss out on this unique opportunity to hear from internationally recognised experts as they uncover the future path for electrifying our NSW railways.

About the speakers

Stephen Goh
Stephen Goh has over 33 years of railway experience spanning all modes of rail systems in all facets of design. He is a specialist in traction power systems, including modelling/design, earthing, bonding & electrolysis, electromagnetic compatibility (EMC) and currently the Principal Engineer & Traction Power Lead for Middleton Group.

Andrew Russack
Andrew Russack is a Technical Director for Rail Electrification at Middleton Group with over twenty years of electrical engineering leadership experience within the electricity supply and rail industries, responsible for maintenance and operations, fault response, regulatory management, design, and construction. Andrew is a chartered professional engineer and the current National President of Professionals Australia.

Technical-Networking Meeting Sponsorship

Sponsorship opportunities for the Technical Meetings are opened and sought from the AGM in August each year. Alternatively companies can make a nomination to sponsor a meeting by emailing the PWI meetings sub-committee on

Sponsorship of Technical Meetings are opened at the AGM.


22 Apr 2021
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