Power System Studies
Using NEPLAN

iEngineering Australia delivers practical and standards-aligned power system studies for industrial, utility, renewable and infrastructure projects.

Our studies support reliable network operation, selective protection coordination, equipment verification, safer fault response and informed technical decision-making.

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Software
NEPLAN
Coverage
LV, HV and Generator Systems
Power System Studies

Technical Studies for Reliable Power Systems

Protection studies, fault analysis, load flow review and system performance assessment for safer and more reliable operation.

Why power system studies are crucial

Why Power System Studies Matter

Power system studies are essential for understanding how an electrical network behaves during normal operation, faults and changing system conditions. They help verify that protection devices, transformers, cables and switchgear are properly selected and coordinated.

Early technical analysis improves system reliability, reduces risk, supports standards compliance and provides better confidence for design, operation and future upgrades.

  1. 1

    Improve Selectivity

    Ensure the correct protection device operates first and minimizes unnecessary loss of supply.

  2. 2

    Verify Equipment Adequacy

    Check whether transformers, switchgear and cables are suitable for the system duty and fault levels.

  3. 3

    Support Safer Operation

    Review protection behaviour and fault response to reduce operational hazards and arc flash risk.

  4. 4

    Assess Network Performance

    Evaluate loading, fault response, generator interaction and potential system limitations.

  5. 5

    Strengthen Compliance

    Support project decisions in line with utility requirements and IEC, IEEE, AS and AS/NZS standards.

What we provide

Comprehensive Power System Studies Services

We provide network modelling and technical studies to support performance review, protection coordination, equipment verification, fault level assessment and system compliance across a wide range of electrical projects.

Our team uses NEPLAN to carry out practical analysis for LV and HV networks, industrial facilities, generator systems and utility-connected infrastructure in accordance with applicable standards and utility requirements.

  • Selective protection coordination
  • Fault current and system performance review
  • Transformer and cable verification
  • Arc flash and protection risk reduction
  • Standards-based technical assessment
Load Flow
Short Circuit
Protection Coordination
Arc Flash Review
Cable Checks & Sizing

Our expertise in power system studies

Power System Study Services

We deliver practical study outcomes for network performance, fault behaviour, equipment suitability, protection grading and operational safety.

Load Flow Analysis

Steady-state network modelling to assess voltage profile, system loading, transformer loading and general operating performance.

Scope

Bus voltage assessment, feeder loading review, loss evaluation and overall network performance checks.

Outputs

  • Voltage profile review
  • Loading and capacity assessment
  • Recommendations for stable operation

Short-Circuit Studies

Fault current analysis to determine prospective fault levels and verify the adequacy of switchgear and associated equipment ratings.

Scope

Three-phase and other fault condition analysis, equipment duty review and fault contribution assessment.

Outputs

  • Fault current calculations
  • Switchgear duty verification
  • Recommendations for rating adequacy

Overcurrent Protection Coordination

Protection grading studies to coordinate reclosers, relays, HV fuses, transformers and LV protective devices for selective fault isolation.

Scope

TCC review, grading margins, selectivity checks and coordination across HV and LV protection devices.

Outputs

  • Protection coordination review
  • Selective grading outcomes
  • Improved fault clearing strategy

Arc Flash Review

Assessment of protection performance and fault clearing behavior to help reduce arc flash risk and support safer operation.

Scope

Protection response review, fault clearing implications and identification of risk reduction opportunities.

Outputs

  • Arc flash risk considerations
  • Protection improvement opportunities
  • Operational safety recommendations

Transformer and Cable Verification

Verification of transformer sizing, cable sizing and performance under steady-state and fault conditions.

Scope

Thermal adequacy review, loading checks, fault withstand review, voltage drop review and rating verification.

Outputs

  • Transformer suitability review
  • Cable adequacy checks
  • Design verification support

Generator Parallel Operation Studies

Desktop analysis and system modelling to assess performance, operational limitations and protection behaviour during generator parallel operation.

Scope

Review of SLDs, protection settings, generator operating conditions and compliance with relevant standards.

Outputs

  • System performance assessment
  • Protection behaviour review
  • Compliance and operational findings

Past Project Experience

Power System Studies Projects

2025-2026

Waste Management Facility, Mundamia

Client Location: Mundamia NSW, Australia

Project involved an Overcurrent Protection Coordination Study, developed in accordance with utility requirements and relevant standards. The electrical network was modelled and analyzed using NEPLAN software, including coordination of recloser, relay, HV fuses, transformers, and LV protection devices. Proper grading and selectivity were established to ensure effective coordination across the system. The study ensured selective operation during faults while considering equipment characteristics and cable ratings.

2024-2025

Lucy Switchgear Inspection: Fault Data Review, and Desktop Analysis

Client Location: Kolonia, Pohnpei, Micronesia

The project involved conducting a Power System Study for the Vital Energy facility in Pohnpei, Micronesia to assess system performance during generator parallel operation. The scope included detailed review of single line diagrams, protection settings, and system data, along with modelling and analysis using NEPLAN software. The study focused on evaluating system performance, identifying operational or design limitations, and assessing protection behaviour. System performance was evaluated against applicable IEC, IEEE, and AS/NZS standards to ensure compliance.

2023-2024

Power System Studies and LV Network Modelling- NSW

Client Location: North Richmond, NSW, Australia

The project involved LV network modelling and comprehensive power system studies using NEPLAN for the Westrock facility in North Richmond, NSW. Load flow and short-circuit analysis were performed to assess network capacity and fault levels. Protection coordination, including CB/fuse selection and arc flash risk mitigation, was carried out. Transformer and cable sizing were verified under steady-state and fault conditions, including power factor correction and capacitor bank sizing, in line with applicable standards.

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Industries we serve

Applications Across Diverse Industries

Our studies support industrial facilities, waste management sites, switchgear systems, generation projects, infrastructure developments and utility-connected electrical networks.

Industrial Plants

Load flow, short-circuit, protection and equipment verification for plant electrical systems.

Waste Management Facilities

Protection coordination and selective grading studies for reliable operational performance.

Power Distribution Systems

Fault level review, coordination assessment and switchgear suitability analysis.

Generator and Hybrid Systems

Parallel operation review, performance analysis and protection behaviour assessment.

About us

About us – where vision meets execution!

iEngineering Australia is a trusted engineering partner delivering advanced electrical and energy solutions across Australia, Fiji and India. Our team supports utilities, industrial facilities, renewable projects and infrastructure developments with practical design, technical studies, compliance support and field-focused engineering services.

Our Mission

Our mission is to improve electrical safety, system reliability and engineering quality by delivering practical, standards-aligned solutions that create long-term value for our clients and stakeholders.

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Our Vision

To be a trusted engineering partner across Australia, Fiji, India and the Pacific, delivering resilient, future-ready and reliable infrastructure solutions for utilities, industry and the built environment.

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Our Values

We work with integrity, accountability and technical excellence, with a strong focus on safety, clear communication, quality delivery and long-term client partnerships.

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Our Journey

Founded in 2013, iEngineering Australia has grown into a multidisciplinary engineering business supporting electrical, energy and infrastructure projects with design, studies, testing, consulting and implementation support. Our work combines technical depth with practical delivery experience to help clients solve real project and operational challenges.

Where We Operate

iEngineering Australia operates across Australia, Fiji and India, delivering reliable engineering and technology solutions to local businesses, utilities, contractors, developers and large multinational organizations.

India – Pune

Phone: +91 9168627258

Email: shila@iengaust.com.au

Navale IT Zone, Office No. 501, 5th Floor, A-Wing, Near Navale Bridge, Mumbai-Bangalore Highway, Narhe, Pune – 411041.

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