Commissioning Service Engineer - HV​/LV Switchgear

Commissioning Service Engineer - HV/LV Switchgear

Location:

Scotland

Power up your career with a hands‑on engineering role in critical infrastructure. We’re looking for a Commissioning Service Engineer to join our team in Scotland, working on HV/LV switch gear, transformers, and electrical distribution systems across the UK and overseas. This role is ideal for someone who thrives in a field‑based, problem‑solving environment, enjoys variety in their work, and wants to develop expertise in installation, commissioning, maintenance, and fault diagnosis.

If you’re an electrical engineer looking for hands‑on experience in power systems, we’d love to hear from you.

• Install, commission, and maintain switch gear, transformers, and related equipment (400V–33kV).
• Perform testing and diagnostics, including Partial Discharge, thermal imaging, and oil sampling.
• Lead on‑site activities, supervising teams and coordinating with project managers.
• Work flexibly, including travel across the UK and internationally, as part of a 24/7 on‑call rota.
• Produce reports and documentation to ensure high standards of work completion.
• Proactively identify and communicate onsite opportunities for additional services, upgrades, or solutions that enhance customer operations and align with Schneider Electric offerings.

• Experience working with electrical distribution systems, switch gear, or transformers.
• Ability to troubleshoot and diagnose faults in electrical equipment.
• Knowledge of HV/LV systems and electrical safety regulations.
• Willingness to travel and work flexibly, including some overseas assignments.
• Strong communication skills and the ability to supervise teams on‑site.

• High Voltage Testing (415V – 33kV systems)
• CT Magnetisation Curves – using variac/volt & ammeter as well as CT analyser. Also, polarity check without CT analyser.
• CT Primary Injection – standard protection (OC/EF/Metering) configuration & high impedance scheme such as Bus Zone protection.
• Relay Secondary Injection (Both electromechanical and solid‑state relays) – to include current & voltage protection.
• VT Primary Injection
• Control Circuit Wiring testing & modification – prove each panel to the associated schematic diagram & fault find. Must be able to read schematic diagrams.
• Mechanical/Electrical function testing of 415V – 33kV switchboards & networks.
• G59 G99 protection – Under/Over Voltage, Under/Over Frequency, ROCOF/dF/dT.
• Familiarity with basic secondary Injection sets such as Sverker 760/780, T&R 100/200
  
  ADM, T&R DVS
  3.
• Knowledge of B.E.B.S. S12 (1964) wire identification standard as used in all UK HV switch gear.
• Knowledge of basic transformer protection devices & associated test methods.
• Operational knowledge of basic auto‑changeover schemes.

Competitive salary & Bonus Scheme, 28 Days Annual Leave + Public Holidays, Pension Scheme, Employee Share Ownership Programme, Health & Wellbeing Support Options, and more.

Schneider Electric is an Equal Opportunity Employer. It is our policy to provide equal employment and advancement opportunities in the areas of recruiting, hiring, training, transferring, and promoting all qualified individuals regardless of race, religion, color, gender, disability, national origin, ancestry, age, military status, sexual orientation, marital status, or any other legally protected characteristic or conduct.