Our Services

Detailed Protection & Control Design

We excel at transforming high-level conceptual designs into detailed working solutions, whether as stand-alone systems or integrations into existing operational systems. Our design outputs typically include:

  • Single Line and Key Line Diagrams

  • Schematic Diagrams

  • Logic Diagrams

  • Cable Block Diagrams

  • Cable Schedules

  • Fibre Optic Cable Diagrams

We also account for any staged work and system constraints to ensure seamless integration with minimal disruption and outage time.

Protection & Control Cubicle Design

We design systems to be housed in suitable enclosures, as per client specifications and site requirements. Our design outputs typically include:

  • General Arrangements

  • Wiring Diagrams

Project Management

TES offers comprehensive project management services for a wide range of green and brownfield transmission projects. From inception to handover and closeout, our proactive team provides leadership, monitoring, and reporting on HSE&Q, time, cost, and quality. We can integrate into your existing team and act as the Principal Contractor’s representative.

Relay Settings and Calculations

Our dedicated protection settings engineers can analyse system parameters and provide detailed setting reports and relay setting files. We also offer DC and AC loading calculations and voltage drop calculations. Our TES Engineers are TP107 authorized and can provide 1st and 2nd check as well as livelink flows as per your needs.

Site Visit Reports & Functional Design Specifications (FDS)

We deliver detailed or high-level functional design specifications, functional overview drawings, and reports tailored to customer expectations. Additionally, we offer comprehensive site visit reports and Design Indent Documents when required.

Our qualifications for substation access include:

  • National Grid Persons

  • BESC

  • WI 1&2 and EN 1&2 for independent access to Scottish Power Energy Network Substations

Provision of System Test Documentation

With extensive experience, we prepare detailed structured test documentation, including configurations, paperwork, suitable test sequences, test procedures, and documents to fully functional test any protection and control scenario.

Principal Designer Role

Our qualified Principal Designers ensure projects are planned safely and in accordance with the Construction Design Management Regulations. We enhance design risk management and simplify health and safety during the pre-construction phase.

CAD Engineering

We understand the importance of accurate design drawings and as-built drawings for the successful execution and completion of transmission and distribution projects. Let TES manage your CAD, drawing management, construction box, as-built, and Operation & Maintenance manuals, allowing your engineering teams to focus on detailed design activities. All information is securely stored on our server and backed up via a dedicated secure cloud connection. We are experienced in working in accordance with TP135. Next day and weekend services are available for urgent CAD work.