TEMPORARY SUPPLY / NETWORK FLEXIBILITY

Mobile
Substations.

Power where it is needed.
A package built for the move.

Transportable substation packages for network maintenance, temporary supply and changing site needs. Coordinate the transformer, switchgear, controls and transport arrangement as one project.

Project-specific selection. Clear technical documentation.

MOBILE SUBSTATION / INTEGRATED PACKAGE
Transportable substation arrangement shown for reference
Transportable substation arrangementConfiguration shown for reference
01 / PURPOSETemporary & replacement supply
02 / PACKAGETransformer, switching & controls
03 / MOBILITYTransport constraints reviewed
04 / DEPLOYMENTSite interfaces defined early

01 / THE RIGHT FIT

A complete package.
Not just a movable transformer.

A mobile substation combines the electrical equipment needed for a defined duty with an engineered transport arrangement. The transformer, switching, protection and auxiliary systems must work together.

VoltGrid coordinates the package around the network connection and site constraints. Transport limits, access, grounding interfaces and commissioning responsibilities are reviewed alongside the electrical design.

Define the complete supply boundary

Identify which primary equipment, protection panels, auxiliaries and connection accessories belong in the package.

Plan for the receiving site

Review access routes, setup space, cable connections and the resources required for installation.

Trailer-mounted mobile substation with transformer and electrical equipment at a site
Plan the journey and the connection.Transport, site preparation and electrical interfaces share one scope.

02 / CONFIGURATION OPTIONS

Configure around
the deployment scenario.

The intended use affects the equipment scope, connection arrangements and logistics plan. Agree these inputs before selecting a package.

01UTILITY CONTINUITY

Maintenance & replacement

Temporary transformation during planned work or replacement of fixed equipment.

  • Match the available network connections
  • Coordinate protection and operating procedures
  • Plan access, positioning and temporary interfaces
Discuss this configuration
02CONSTRUCTION & REMOTE SITES

Temporary project supply

A transportable package for a project with a defined supply period or changing location.

  • Establish load growth and operating duration
  • Review ambient conditions and auxiliary supplies
  • Coordinate transport route and receiving-site limits
Discuss this configuration
03RESTORATION PLANNING

Network contingency

Equipment scoped around a utility or industrial contingency strategy.

  • Define the connection scenarios in advance
  • Agree transport readiness and accessory scope
  • Review commissioning and operational responsibilities
Discuss this configuration

Deployment and delivery schedules depend on the confirmed design, transport route, site readiness and operating requirements.

Four systems.
One coordinated scope.

Use the package breakdown to establish supply boundaries and interfaces.

Primary equipment

Transformer, switching and specified incoming / outgoing connections.

Protection & auxiliaries

Relays, metering, controls, auxiliary supplies and project communications.

Transport & site interfaces

Platform or trailer, dimensions, handling, earthing interfaces and access.

03 / TECHNICAL SELECTION

Specify the duty.
Include the journey.

Electrical ratings alone do not define a mobile package. Add transport, site and interface information so the proposed scope is practical for deployment.

Enquiry checklistPDF · Project specification worksheet
Mobile Substation specification checklist
Selection parameterWhat to confirm
Electrical ratingsRequired MVA, voltage levels, frequency and operating duty
Connection schemeSingle-line diagram, incoming / outgoing circuits and neutral arrangement
Primary equipmentTransformer, switchgear and required switching or isolation functions
Protection & controlRelay philosophy, metering, interlocks and communications interfaces
Auxiliary systemsAC / DC supplies, batteries, lighting and environmental control as required
Transport envelopeRoute restrictions, dimensions, axle / weight limits and transport method
Receiving siteAccess, positioning space, foundation / support and earthing interfaces
Deployment scopeCable accessories, assembly, commissioning and responsibility boundaries
Verification & deliveryInspection, agreed tests, packing, transport and site documentation

Specific ratings, availability and supporting evidence are confirmed for the proposed equipment.

04 / APPLICATIONS

Built around
the way you use power.

Bring the application into the specification.
It shapes the equipment and the interfaces.

Utility maintenance

Temporary supply during scheduled substation work.

Focus: Connection plan & operating continuity

Industrial projects

Project-defined supply during expansions or replacements.

Focus: Load requirements & site access

Remote operations

Power packages for sites with transport and space constraints.

Focus: Logistics & local conditions

Contingency planning

Predefined response for network restoration scenarios.

Focus: Compatibility & readiness

05 / PROJECT SUPPORT

From your requirements
to a defined supply.

Agree the equipment scope, supporting documents and project interfaces at each stage.

  1. 01

    Define the scenario

    Identify the network duty, deployment cases and supply boundary.

  2. 02

    Integrate the package

    Coordinate primary equipment, controls and auxiliaries.

  3. 03

    Review transport & site

    Verify the route, envelope, receiving site and connection plan.

  4. 04

    Agree handover

    Define tests, documentation, delivery and commissioning scope.

06 / COMMON QUESTIONS

Before you
specify.

Practical questions about mobile substation selection and project requirements.

Ask a technical question
What is normally included in a mobile substation?

A package may include a transformer, switching equipment, protection and control, auxiliary supplies and a transport platform. The actual scope must be defined in the project proposal, including any connection accessories and site services.

Can the same package serve different sites?

Only if the ratings, connections, protection settings, transport constraints and installation conditions are suitable. Identify the intended sites and operating scenarios during the design review.

Does a mobile substation need site preparation?

Yes. The receiving site must provide appropriate access, positioning space, supports, earthing and electrical interfaces. Temporary equipment still requires an approved installation and commissioning plan.

How quickly can it be deployed?

Deployment depends on equipment availability, transport permits, route conditions, site readiness and the work required for connection and commissioning. A schedule should be agreed for the actual project scope.

Who is responsible for installation and commissioning?

Responsibility boundaries should be agreed before order placement. Define transport, offloading, assembly, connections, testing, operational approvals and training in the scope of supply.

LET’S DEFINE YOUR NEXT PROJECT

Your requirements.
Our starting point.

Tell us what you are planning. Include “Mobile Substation” in your message and share the information you have available.

  • Single-line diagram, voltage levels and required capacity
  • Transport envelope, access route and receiving-site information
  • Deployment scenarios, responsibility boundaries and schedule
Have a specification, drawing or parts list?info@voltgridelectric.com

Request a project review

Start the conversation with our team.

This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
This field is required.
VOLTGRID ELECTRICPower equipment. Project by project.© 2026 VoltGrid Electric. All rights reserved.Contact our team