Testing and commissioning services
Power System Studies Australia
Talk to an engineer: 1300 730 499 or service@megavar.com.au
Engineering Analysis That Underpins Safe, Reliable HV Systems
Power system studies are the analytical foundation for high-voltage design, protection coordination, and regulatory compliance. Whether connecting a new generator to the NEM, upgrading an existing substation, or assessing installation safety, Megavar’s engineers deliver the technical studies required.
Load Flow Analysis
Load flow studies determine steady-state voltage, current, and power flows under normal and contingency conditions. We verify equipment ratings, voltage limits, and capacity for planned growth or generation. Studies per NER requirements and NSP planning standards.
Short Circuit Analysis
Short circuit studies calculate prospective fault currents to verify switchgear and protection ratings. We calculate three-phase, SLG, L-L, and DLG faults including synchronous, inverter-based, motor, and network contributions. Per IEC 60909 and AS/NZS 3851.
Protection Coordination Studies
Protection grading ensures devices operate in correct sequence to isolate faults with minimum disruption. We develop time-current curves for relays, fuses, and reclosers, and calculate settings for distance, differential, and special schemes.
Harmonic Analysis
Harmonic studies assess non-linear load and IBR impacts on power quality. We model sources, calculate distortion at the POC, and verify compliance with AS/NZS 61000.3.6. Harmonic filter design where required.
Arc Flash Studies
Arc flash analysis per IEEE 1584 calculates incident energy to determine PPE categories and safe working distances. We provide arc flash labels for all equipment. Essential under AS/NZS 4836 and WHS regulations.
Earthing Studies
EPR calculations, step and touch voltage analysis, earth grid optimisation, and transfer potential assessment per ENA EG-0, ENA EG-1 and AS 2067:2016.
Software Platforms
Proficient in ETAP, DIgSILENT PowerFactory, SKM Power Tools, and CAPE. We work within your existing models or build new ones from SLDs and equipment data.
Take it to your team
Capability statement
Arc Flash and Power System Studies
Arc flash studies to IEEE 1584 with PPE and label schedules, plus load flow, short circuit, protection coordination, harmonic and earth potential rise studies.
Capability statement
High-Voltage System Design
Primary, secondary, protection and SCADA design, with earthing, EMF and lightning protection modelling.
Clients
What our clients say
For years, we have engaged Megavar for design, testing and commissioning services on HV construction projects. They are professional, knowledgeable, and responsive which consistently leads to positive outcomes on our projects.
From my first phone call with MegaVar I knew our values aligned. MegaVar pride themselves on building successful working relationships, their service is underpinned by industry best practices and coupled with a “can do” attitude to successfully achieve our project requirements, and our customers high expectations.
FAQ
Frequently Asked Questions Power System Studies Australia
What is a protection coordination study?
A grading study ensures protection devices operate in correct sequence – the device closest to a fault trips first, upstream devices only if the downstream fails. Produces time-current coordination curves and recommended relay settings.
Do I need an arc flash study?
What software does Megavar use?
Can Megavar model inverter-based resources?
How long does a study take?
ISO Certified and Licensed in Every State
Megavar is certified to ISO 9001 (quality), ISO 14001 (environment) and ISO 45001 (safety), and holds electrical contractors licences in every Australian state.
Ready to commission your substation? Contact Megavar today on 1300 730 499 or visit our contact page to request a quote.
Request a quote
Tell us about the job
An engineer replies by the end of the next business day (Monday to Friday, 8:30 am to 5:00 pm). Scope still forming? Send what you have. Outage or urgent fault? Call to discuss the site, access window and mobilisation.
Talk to us now
1300 730 499 service@megavar.com.au Hobart · Launceston · Adelaide · Newcastle · GladstoneExplore Our other services
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Testing guides
Related testing guides
Power Quality Testing: A Field Guide to Logging and Analysis at the Point of Connection
Power quality testing logs voltage and current at a point of connection for days and analyses the record for voltage, unbalance, harmonics, flicker, dips, swells, interruptions…
Protection Relay Testing: Secondary Injection, Test Intervals and the Standards That Apply
Protection relay testing proves that the relays guarding a substation, feeder or generator will trip when they should and stay stable when they should not. This…
Earth Resistance Testing: Substation Earth Grids, Fall of Potential and Step and Touch Voltages
Earth resistance testing shows whether an earth electrode or substation earth grid will carry fault current safely into the ground. This guide explains the fall-of-potential method,…