HV Commissioning Engineer
65k + package
UK based travel
Key Responsibilities
Carry out commissioning and testing of high-voltage (HV) equipment and systems under the guidance of senior engineers or commissioning leads.
Support pre-commissioning and commissioning phases for substations, transformers, switchgear, and protection systems.
Perform HV testing activities such as:
Primary and secondary injection testing of protection relays
Contact resistance (Ductor) and insulation resistance testing
AC dielectric withstand tests
CT/VT ratio, polarity, and burden checks
End-to-end scheme verification and functional testing
Transformer ratio, winding resistance, and polarity tests
Assist with system energisation and handover, ensuring all test results and documentation are accurate and complete.
Contribute to FAT, SAT, and site commissioning activities, identifying technical issues and supporting their resolution.
Maintain up-to-date test records, commissioning schedules, and documentation in accordance with project requirements.
Promote safe working practices on site and ensure compliance with Health & Safety procedures.
Work closely with design and protection engineers to review relay settings, logic configurations, and coordination requirements.
Share technical knowledge and support less experienced team members where appropriate.
Skills, Experience, and Qualifications
HNC/HND or Degree in Electrical or Power Engineering (or equivalent experience).
Typically 4-6 years' experience in high-voltage testing and commissioning, ideally within Power Transmission, Distribution, or Utilities.
Practical experience commissioning HV substations (up to 132kV or higher desirable).
Good understanding of protection schemes, control systems, and primary plant (switchgear, transformers, CTs/VTs, circuit breakers).
Hands-on experience with major OEM protection relays (e.g. Siemens, GE, Schneider, ABB, SEL).
Capable of interpreting test data, identifying issues, and contributing to technical solutions.
Experience supporting FAT, SAT, or system energisation activities.
Strong attention to detail and competent technical reporting skills.
Good communication and teamwork skills when working with clients, site teams, and network operators.
Full UK driving licence and willingness to travel to project sites as required