Power System Studies & Modelling
JMB Engineering delivers comprehensive power system studies using SKM Power Tools for Windows (PTW), the industry standard for electrical power system analysis. We support clients across mining, data centres, renewables, utilities and heavy industry — from underground and open-cut coal to metalliferous mines, hyperscale data centre developments, and solar, wind and battery storage projects.
Our modelling team builds and maintains detailed electrical network models that form the foundation for protection coordination, fault level analysis, and system design decisions. Whether you need a new model built from scratch or an existing model updated to reflect network changes, our engineers deliver accurate, auditable results.
What We Deliver
- Power system model development and maintenance across multiple software platforms
- Fault level studies (three-phase, single-phase, earth fault)
- Protection coordination studies and grading
- Arc flash hazard assessments (IEEE 1584)
- Load flow and voltage drop analysis
- Motor starting studies
- Harmonic analysis
- Short circuit capacity assessments
Sectors We Support
Our power system studies are relied on across a broad range of industries: underground and surface coal mining (NSW and Queensland), metalliferous and hard-rock mining, data centres, renewable energy (solar, wind and battery energy storage), utilities, water and gas, and heavy industry. We recently delivered power system protection studies for the DigiCo SYD1 data centre, applying the same modelling rigour used on complex mine reticulation networks.
Planning a shutdown on temporary generator power? See our insight on temporary generator power for mine outages and why the site-side modelling matters.
As a value add, all protection modelling data including relay settings, coordination reports and study outputs are stored on our Protection Database platform — providing a full compliance record with easy lookup and access for your engineering and maintenance teams.
Frequently Asked Questions
What is a power system study?
A power system study is an engineering analysis of an electrical network — typically load flow, short circuit (fault level), protection coordination and arc flash — used to confirm the system is safe, compliant and correctly rated. JMB Engineering delivers these using SKM PowerTools for Windows (PTW), the industry-standard modelling package.
How long does a power system study take?
Timeframes depend on network size and data availability, but a typical mine or facility study runs from a few weeks to a couple of months from data collection to final report. We scope each job up front so you get clear timing before we start.
What software does JMB use for power system modelling?
We model in SKM PowerTools for Windows (PTW), covering load flow, short-circuit, protection coordination and IEEE 1584 arc flash. Deliverables include single-line diagram markups, relay setting reports and actionable recommendations.
Which industries do you provide power system studies for?
We work across mining (underground and open-cut coal, metalliferous), data centres, renewables (solar, wind, BESS), utilities, water and heavy industry — Australia-wide, with a strong NSW and QLD presence.
All studies are delivered with clear technical reports, single-line diagram markups, and actionable recommendations — ready for implementation by site electrical teams. Contact JMB Engineering to discuss your power system study.