Overview

Arc-flash hazards are among the most critical safety risks in electrical assets, particularly within ageing infrastructure designed prior to modern mitigation practices. This presentation outlines a completed project that modernised legacy protection systems in 22 kV and 3.3 kV switchboards supplying 1.85 MW and 2 MW pump motors via 3 MVA transformers, showcasing an end-to-end arc-flash mitigation strategy from study through to <a href="http://commissioning.

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The presentation will detail the key drivers behind the upgrade, including the replacement of obsolete GEC relays with advanced SEL protection systems, and the integration of high-speed arc-flash detection using both point and loop sensors, alongside current detection to confirm arc-flash events. The session also highlights the innovative protection philosophy that enabled dynamic logic in a brownfield environment, and discusses the design and implementation challenges encountered. Outcomes were validated through detailed power system and arc-flash studies, demonstrating significantly enhanced operator safety, improved compliance with Australian Standards, and extended asset life — all achieved through a cost-effective upgrade seamlessly integrated with existing SCADA <a href="http://systems.

Speaker

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Speaker

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Speaker

[Ian Zareei Headshot ]
Ian Zareei
Principal Electrical Engineer, Persis Engineering

[Koushik Chukka Headshot]
Koushik Chukkala
HV Commissioning and Electrical Design Engineer, Persis Engineering

Program timeline

– 3.30 pm AEST: Registrations
– 4.00 pm AEST: Presentation commences
– 4.45 pm AEST: Q&A
– 5.00 pm AEST: Event concludes

Learning outcomes

In this presentation, attendees will:

– Discover how tailored protection design strategies were applied to meet specific site conditions and operational <a href="http://requirements.
-” target=”_blank” title=”requirements.
-“>requirements.
– Explore the implementation of advanced protection systems, including SEL relays and high-speed arc-flash detection <a href="http://technologies.
-” target=”_blank” title=”technologies.
-“>technologies.
– Gain insights into the design and commissioning challenges of upgrading legacy switchboards in a brownfield <a href="http://environment.
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-“>environment.
– Learn a repeatable framework for arc-flash risk mitigation, applicable to both ageing infrastructure and new <a href="http://developments.

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Co-sponsored”>developments.

Co-sponsored by: Engineers Australia

9/340 Adelaide Street , Brisbane, Queensland, Australia, 4000