Power System Studies Australia
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 and AS 22067.
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.
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?
Ready to commission your substation? Contact Megavar today on 1300 730 499 or visit our contact page to request a quote.
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Windfarm HV commissioning: independent EBoP testing, substation commissioning, MV collector network, protection validation, and AEMO grid compliance for wind farms across Australia.
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We’re incredibly excited to share a big milestone in Megavar’s story—we’ve officially opened our new Newcastle branch, located at 22 Gavey Street, Mayfield,
