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Electrical Power System Modelling & Protection for the Mining Industry

JMB Engineering provides ongoing power system modelling and protection engineering services to some of Australia’s most established mining operations. Using SKM Power Tools, we deliver comprehensive fault level analysis, protection coordination studies, arc flash assessments and relay settings development to support safe and reliable electrical infrastructure across underground and open-cut coal mines, CHPPs and surface facilities.

Our Mining Clients

We manage active power system models and protection coordination for operations including:

  • Malabar Resources — Ulan West (ULW) & Maxwell Underground (MXU) — Monthly modelling services, end-of-block emergency studies, HV protection updates and longwall installation power reviews for both underground operations and CHPP surface facilities.
  • Centennial Coal — Mandalong, Myuna & Newstan — Long-term modelling and protection engineering support including Siprotec relay programming, substation drafting, protection relay setup and ongoing electrical engineering support across the Cooranbong complex.
  • Narrabri Coal Operations (NCO) — Underground electrical protection and arc flash review, Hitachi STATCOM modelling and ongoing monthly engineering support.
  • Delta Electricity — Chain Valley & Mannering Collieries — Protection card development, east mains protection reviews, surface protection as-built documentation and relay settings management.
  • Glencore — HVO, Bulga & United Wambo — Howick power system studies, CHPP fault level assessments, SEL relay testing, arc flash management reviews and MIA protection studies.
  • South32 — Appin & Dendrobium — HV and LV protection modelling for longwall face development and underground infrastructure.
  • Peabody Energy — Metropolitan & Wambo — CHPP modelling, generator and transformer independent technical studies, and ongoing protection engineering.
  • Yancoal — Ashton & Moolarben — Site-wide protection studies, protection setting rollouts, surface arc flash assessments and longwall pump studies.

What We Deliver

Our power system modelling services cover the full lifecycle of mine electrical infrastructure:

  • SKM Power Tools fault level, load flow and motor starting studies
  • Protection coordination and relay settings development (SEL, Siprotec, Schneider, GE)
  • Arc flash hazard assessments to IEEE 1584
  • Equipment rating reviews against fault levels
  • Longwall and development panel modelling for new installations
  • CHPP and surface plant electrical studies
  • Protection relay commissioning, setup and injection testing
  • Independent technical reviews for generators, transformers and switchgear

Our team maintains active models across multiple sites, providing responsive, ongoing support as operations evolve. Every study is delivered with practical, site-ready outputs that engineering and maintenance teams can implement with confidence.

Contact us to discuss your power system modelling and protection engineering requirements.