The Disappearing Neutrals in a TN-C-S Network

The live presentation of this event has already taken place.

Please view the PDF slides here or watch the video recording below:

Emeritus Professor Akhtar Kalam’s Electrifying Mysteries

This webinar series provides a structured examination of real-world engineering challenges. Each session will address specific, technically focused topics relevant to professional engineers.

Webinar details

The webinar explores puzzling voltage instability and equipment damage caused by intermittent or lost neutrals in TN-C-S systems. Through forensic analysis of field cases, participants uncover how mechanical joints, diverted currents, and load imbalances create elusive faults. The session exposes the fragility of assumed earth-neutral integrity.

• The webinar will be recorded and will be sent out to registered attendees afterwards.
• A certificate of attendance will be provided to attendees who request one near the end of the live webinar session.
• Please note: the time stated on this event is in UTC. You will need to convert this to your own time zone.

Key takeaways from this webinar

• Explain the operating principles and vulnerabilities of TN-C-S (PME) earthing systems.
• Identify symptoms and consequences of open or high-impedance neutrals.
• Interpret neutral current paths, diverted currents, and touch voltage risks.
• Apply systematic testing and monitoring techniques to locate disappearing neutrals.
• Integrate design, inspection, and maintenance practices to mitigate neutral failures.

Related courses

This webinar/topic relates to our school of Electrical Engineering and is particularly found in the following courses:

• Professional Certificate of Competency in Circuit Breakers, Switchgear & Power Transformers
• Professional Certificate of Competency in Power Distribution
• 52888WA Advanced Diploma of Applied Electrical Engineering (Power Industry)
• 52892WA Advanced Diploma of Electrical and Instrumentation (E&I) Engineering in Mining
• 52883WA Advanced Diploma of Applied Electrical Engineering (Electrical Systems)
• UET60222 Advanced Diploma of ESI – Power Systems (Australia & New Zealand Only)
• Online – Bachelor of Science (Electrical Engineering)

To learn more about tuition fees, please click here.

About the presenter

Emeritus Professor Akhtar Kalam

BSc, BScEng, MS, PhD, FIET, CEng, FAIE, FIEAust, CPEng, NER, APEC Engineer, IntPE(Aus), PEV, MCIGRE, Life Senior Member of IEEE.

Professor Akhtar Kalam is a supervisor of EIT’s Doctoral students. He has worked at Victoria University since 1984 and recently associated with the Institute for Sustainable Industries and Liveable Cities. He is the Editor in Chief of Australian Journal of Electrical & Electronics Engineering. Further, he has Distinguished Professorship position in many national and international institutions. He has been recognized internationally and nationally for his research. He is regularly invited to deliver lectures, work on industrial projects, and examine external theses overseas. Professor Kalam is a registered Professional Engineer in the state of Victoria (PEV), Fellow of EA, IET, AIE, a life Senior Member of IEEE, NER, APEC Engineer, IntPE (Aus) and a member of CIGRE AP B5 Study Committee.