HV Commissioning & Primary Injection Engineer in London

Overview

HV Commissioning Engineer (Primary Injection / TPI) for UK.

Full-Time Permanent role with salary competitive, involving travel across the UK and overseas to deliver high voltage solutions.

Responsibilities

• Carry out HV commissioning and testing activities on systems from 33k V to 400k V.
• Perform Transformer Primary Injection (TPI), CT primary injection, secondary injection, and protection relay testing.
• Commission, maintain, and fault-find on HV switchgear, transformers, substations, and protection systems.
• Complete electrical testing including AC dielectric testing, functional testing, and system diagnostics.
• Support planned maintenance activities including partial discharge testing, thermal imaging, and condition assessments.
• Carry out control wiring modifications, retrofit upgrades, and equipment function testing.
• Work with modern protection systems including IEC 61850, G99, differential, and distance protection schemes.
• Produce accurate commissioning reports, test records, risk assessments, and method statements.
• Provide technical support to customers and assist with emergency response requirements.
• Supervise site activities and coordinate with project teams, contractors, and clients when required.
• The Candidate Will Have
• Proven experience in HV commissioning, testing, or protection engineering.
• Knowledge of primary injection testing, CT testing, protection relays, and HV switchgear.
• Experience working on electrical systems from 33k V-400k V.
• Ability to interpret electrical drawings and complete technical reports.
• Good understanding of HV safety procedures and working practices.
• Experience working independently and as part of a field-based engineering team.
• Willingness to travel throughout the UK and overseas when required.
• Full UK driving licence.

For more information, please contact Aiste.

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