Power System Analysis & Protection Design
At Universal Guard (NT), we deliver advanced power system analysis services designed to ensure electrical networks operate safely, efficiently, and reliably under Australian conditions.
Comprehensive Power System Studies
Universal Guard (NT) is a highly capable and experienced provider of electrical power system analysis services, with a focus on power system modelling, protection studies, and design.
Our team of experienced engineers provides detailed modelling, protection studies, and system design solutions tailored to meet project-specific requirements while complying with relevant Australian Standards and industry guidelines.

Using industry-leading software such as ETAP, PTW, and PowerCad, we analyse and optimise power systems to enhance performance, minimise risk, and support long-term operational reliability. Our studies are aligned with applicable standards, including AS/NZS and IEC frameworks adopted within Australia.
Power system modelling
We develop accurate power system models using advanced software tools to simulate real-world operating conditions, enabling informed design decisions and system optimisation.
Protection system studies and design
Including coordination and selectivity analysis. Protection schemes include overcurrent and earth fault, directional and non-directional, motor, high and low impedance differential, distance protection, and IEC 61850 communication systems.
Arc flash studies
We perform detailed arc flash assessments in accordance with recognised industry practices, including incident energy calculations, hazard assessments, equipment labelling, and mitigation strategies to improve personnel safety.
Load flow studies
Including steady state and dynamic analysis such as motor starting studies, analysis of load diversity, equipment rating checks and sizing, voltage and tap changer position analysis, effect of power factor correction (PFC).
Harmonic studies
Including source identification and mitigation recommendations. Analysis includes establishing resonance points, effects on Ripple Control schemes, effects of and on PFC schemes, filter analysis and specification, and Connection Point limit checks.
Insulation coordination studies
Including equipment and system Surge Protection evaluation and specification to protect transformers, switchboards, and downstream equipment.
Short circuit studies
We perform fault current calculations and equipment rating checks in accordance with recognised standards, ensuring switchgear, circuit breakers, and cables are suitably rated for safe operation.
Transient Stability Studies
Analysing effects of system disturbances such as generation changes, faults, and load addition/rejection, results typically being used for optimising of Load Shedding schemes.
Equipment Reliability studies
Allow recommendations to be made on upgrades and protection improvements, spares options and optimising switching configurations. Evaluation uses published or actual reliability figures for installed equipment.
"We have a proven track record of successfully delivering projects on time and within budget, and we pride ourselves on our attention to detail and commitment to safety."
Professional Commitment & Excellence
