HV Panel
Design

iEngineering Australia provides High Voltage Panel Design services tailored for industrial, utility, infrastructure and renewable energy applications across Australia, Oceania and the Pacific.

We support technical design, protection philosophy, switchgear selection, layout development, control schematics, cable schedules, relay settings and detailed engineering documentation for reliable HV systems.

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Focus
HV Switchgear & Panel Design
Coverage
Protection, Layout, Control & Compliance
High voltage panel design and switchgear engineering

Reliable HV Panel Engineering

Practical and standards-aligned HV panel design support for safe, efficient and maintainable electrical systems.

What we provide

Comprehensive High Voltage Panel Design Support

iEngineering supports HV panel design, Protection coordination and supply-oriented engineering backed by practical analysis and technical documentation. Our design approach considers system safety, fault performance, equipment suitability and long-term operational reliability.

We help clients with load flow studies, fault level calculations, equipment sizing, switchgear single-line diagrams, control schematics, substation enclosure layouts, cable routing, BOM development and relay setting calculations for modern HV systems.

  • Load flow and fault level study support
  • Switchgear selection and equipment sizing
  • Single-line diagrams and control schematics
  • Cable trench, tray and interconnection layouts
  • Earthing, lightning and relay coordination inputs
HV Switchgear
Protection Design

SLD & Schematics
Detailed Engineering

Our expertise

Our Expertise in HV Panel Design

We support high voltage panel projects through engineering calculations, design documentation, protection selection, layouts and standards-based technical development.

Load Flow & Fault Level Studies

We assess electrical demand, system behaviour and short-circuit levels to support safe and reliable HV panel and switchgear design decisions.

Coverage

Load assessment, network conditions, short-circuit duty, equipment rating checks and system design validation

Outputs

  • Load flow study inputs
  • Fault level calculation support
  • Design basis for equipment selection

Equipment Selection & Sizing

We support the selection and sizing of key HV panel components to suit protection needs, operating conditions and applicable design standards.

Scope

Circuit breakers, CTs, PTs, surge arresters, earthing switches, cable terminations and conductor sizing

Outputs

  • Equipment sizing recommendations
  • Protection-oriented component selection
  • Technical design support reports

Single-Line Diagrams & MCC / Switchgear Schematics

We prepare and support single-line diagrams for switchgear and MCC systems together with control schematics for operation, interlocking and maintenance clarity.

Applications

Switchgear systems, MCCs, feeder arrangements, protection logic, control philosophy and operator guidance

Outputs

  • Single-line diagrams
  • Control schematics
  • Interlocking and operational design support

Panel Layout, Enclosure & Substation Design

We support physical layout planning for HV panels, MCC enclosures, substations and control enclosures to improve accessibility, integration and maintainability.

Coverage

Panel arrangement, enclosure planning, control cubicles, substation interfaces and coordinated equipment placement

Outputs

  • Electrical layout support
  • Enclosure design inputs
  • Integrated equipment arrangement guidance

Cable Trench, Tray Layout & BOM Preparation

We prepare detailed cable trench and tray layouts, cable planning documentation and bills of materials to help streamline project implementation and installation.

Scope

Cable routes, tray planning, trench details, BOM development, installation coordination and constructability support

Outputs

  • Cable layout drawings
  • Bill of materials
  • Installation-oriented design documentation

Earthing, Lightning & Relay Setting Calculations

Our support extends to earthing calculations, lightning protection considerations, relay setting calculations and interconnection documents for complete HV design development.

Applications

Protection coordination, safe grounding, surge mitigation, relay configuration and reliable system performance

Outputs

  • Earthing design inputs
  • Relay setting calculation support
  • Protection and interconnection documentation

Solutions we support

HV Panel Design Areas We Support

Our HV panel design support covers standards-based engineering, parameter configuration, protection devices, busbar design and secondary system integration.

Standards

Design & Installation Compliance

Application: Australian / IEC Aligned Engineering

  • Design parameters aligned with Australian and IEC standards
  • Type-tested panel approach and routine test considerations
  • Technical data and compliance-based design support
  • Quality-focused manufacturing coordination inputs
Parameters

HV Panel Configuration

Application: Grid & Plant Design Inputs

  • Grid voltage and frequency considerations
  • Earthing and neutral configuration review
  • Peak short-circuit connection assessment
  • Insulation level, overvoltage and operating region selection
Busbar

Busbar Circuit Arrangement

Application: Switching & Protection Layouts

  • Single busbar and double busbar configurations
  • Busbar coupler and circuit-breaker arrangement support
  • Common connection and feeder design logic
  • Protection-conscious current path planning
Protection

Switching Devices & Protection Components

Application: Safe Operation & Fault Protection

  • Circuit breakers, switches and contactors
  • HV HRC fuse application support
  • Protection and switching device coordination
  • Selection support for reliable fault interruption
Feeders

Outgoing Feeder Component Design

Application: Termination, Instrumentation & Earthing

  • Cable termination and conductor cross-section inputs
  • Selection of CT, PT and surge arresters
  • Earthing switch integration support
  • Feeder-specific component coordination
Secondary

Secondary Systems & Control Integration

Application: Monitoring, Metering & Interlocking

  • Control, interlocking and fault protection devices
  • Monitoring, communication and metering equipment
  • Motorised drives, voltage test systems and PT resistors
  • Customised secondary-side solutions for client requirements

Past Project Experience

Power Distribution & Electrical Infrastructure

Design of 2 x 11 kV Ring Main Unit RMU Project in Nauru 2024

Design of 2 x 11 kV Ring Main Unit (RMU) Project

Client Location: Nauru

Category: Power Distribution & Electrical Infrastructure

System: 2 × 11 kV Outdoor Ring Main Units (RMU) for medium voltage distribution network

  • Summary: iEngineering successfully executed the supply, design, and installation of 2 × 11 kV Outdoor Ring Main Units (RMUs) for a project in Nauru.
  • Benefit: Enhanced the reliability and efficiency of the medium voltage distribution network.
  • Operational Advantage: Improved operational flexibility, fault isolation, and continuity of power supply.
  • Compliance: Met the required technical and environmental standards for outdoor applications.

Why HV panel design matters

Why Good HV Panel Design Matters

A well-designed HV panel improves safety, simplifies operation, supports reliable fault protection and helps electrical systems perform properly under both normal and fault conditions.

By considering fault levels, equipment ratings, busbar arrangement, control integration, earthing and standards compliance at the design stage, projects can achieve better reliability, maintainability and long-term performance.

  1. 1

    Improve Safety

    Support safe switching, fault interruption and equipment coordination in high voltage environments.

  2. 2

    Meet Standards

    Align panel design with Australian and IEC-based engineering expectations and project requirements.

  3. 3

    Enhance Protection Reliability

    Support proper device selection, relay settings and fault-clearing performance across the system.

  4. 4

    Simplify Installation & Maintenance

    Better layouts, schematics and cable documentation make installation and maintenance more efficient.

  5. 5

    Support Long-Term System Performance

    Good engineering decisions help improve reliability, serviceability and lifecycle value.

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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