Rail & Transit.
Traction power engineering for high-speed, metro and urban rail — built around traction load behaviour, harmonics, stray current and the interference traction supply creates.
Metro Corporations, Rail Authorities, Traction Contractors and Their Engineering Partners.
Rail and metro electrification, traction supply and the interference it creates.
Service selection follows your asset, your appointment and your Project Stage. Every scope line below links to the one Service page that delivers it.
How the Sector Works.
The chain from supply to load, and where engineering decisions matter most.
What Drives Decisions Here.
The pressures our Clients in Rail & Transit work under, and design for.
Safety
Earthing, stray current and protection protect people and assets along the line.
Grid Impact
Traction loads unbalance and distort the utility supply.
Programme
Energisation dates are fixed to the opening of the line.
Reliability
Service frequency depends on traction supply staying up.
2 Asset Types, Each with Its Own Scope.
Choose the asset you're working on to see the challenges, Services and standards that apply to it.
Engineering at Every Stage.
Six Project Stages for Rail & Transit. Each scope line links to its Service; each Service appears once, with its own inputs and deliverables.
Feasibility & Concept
Understand traction load behaviour before the design is fixed.
Detailed Design
Traction power engineering built around the interference it creates.
- Traction Substation and Switchyard DesignEngineering Design
- Protection Philosophy and Setting CalculationPower System Studies & Simulation
- Earthing and Grounding DesignEngineering Design
- Harmonic Analysis and Filter Design for Traction HarmonicsPower System Studies & Simulation
- Insulation Coordination StudyPower System Studies & Simulation
- Stray Current and Interference AssessmentPower System Studies & Simulation
Tender & Procurement
Independent technical evaluation for long-life traction assets.
Construction
Independent quality oversight across traction electrical works.
Pre-Commissioning & Commissioning
Verification of every traction electrical system before energisation.
Operation & Maintenance
Keep traction supply reliable across the operating life.
Services for Rail & Transit.
What we deliver for this Sector, from the first study to operation.
Your Role in the Project.
Owner's Engineer
Independent review before you commit capital, select suppliers or accept performance.
Owner's EngineeringDetailed Engineer
Coordinated engineering from bid through construction release and site support.
Engineering DesignDesign Partner
Equipment-interface design and specialist studies, white-labelled where required.
Power System StudiesOwner's or Independent Engineer
Specification review, surveillance, test witnessing and technical acceptance.
How We WorkSelected relationships
Clients in This Sector.
A selection of the organisations we've worked with in and around Rail & Transit.






From Our Engineers.
Practical engineering notes related to this page.