HV Service Engineer

Job Title: HV Protection Engineer

Role Overview

We are seeking an Electrical Power Protection Engineer to support the testing, commissioning, and validation of electrical power systems and protection equipment. This role ensures that new and refurbished electrical plant and protection systems operate safely and in full compliance with manufacturer specifications, company procedures, and operational requirements.

The role involves a structured commissioning approach from individual component testing through to full system energization, ensuring system integrity during operation compliance.

Working as part of a Mobile four-person team in London and surrounding area's . Working week will involve sub inspections and non-intrusive works inspections over a diverse portfolio of buildings. Intrusive Maintenance will be planned and completed Out of Hours and incorporated in wages for fifteen maintenance activities over the year.

Key Responsibilities

Test electrical power plant and protection systems across power generation, transmission, and distribution environments
Carry out maintenance activities from component-level testing to full system energisation
Verify that plant and equipment meet operational, safety, and performance standards
Diagnose faults, perform fault analysis, and implement corrective actions
Monitor system performance during initial operation and ensure reliability
Produce and review technical documentation and commissioning reports
Ensure all activities are delivered safely, on time, within budget, and to quality standards
Provide technical guidance and support to colleagues and stakeholders
Plan, prioritise, and schedule commissioning activities

Technical Knowledge & Experience

Strong understanding of electrical power systems and associated plant and equipment
Knowledge of high voltage generation, transmission, and distribution systems

Understanding of:

Protection, control, and telemetry systems
Fault analysis methods and system behaviour
Commissioning procedures and practices
Failure modes and system impact
Electrical network operations and topologies
Relevant standards, regulations, and policies
Experience selecting and using appropriate testing and commissioning equipment

Key Skills

Ability to apply analytical and engineering principles to real-world scenarios
Competence in high voltage safe systems of work and risk management
Proficient in using a wide range of electrical test equipment
Ability to read and interpret engineering drawings and schematics
Strong report writing and documentation skills
Effective communication skills with technical and non-technical stakeholders

Specialist Skills

Plant

Testing, commissioning, and maintenance of:
Transformers
Switchgear
Conductors
Battery systems
Ancillary equipment

Protection

Functional testing and commissioning of protection systems
Injection testing (current and voltage) to simulate fault conditions
Configuration and validation of:
Microprocessor-based protection relays
Numerical protection systems
Electromechanical relays
Ensuring correct integration with high voltage systems

Behavioural Competencies

Collaborates effectively to deliver project outcomes
Clear and confident communicator (written and verbal)
Uses structured, logical approaches to resolve issues
Methodical and process-driven mindset
Takes responsibility for work delivery and team outcomes
Engages effectively with stakeholders at all levels

Qualifications

GCSE English (Grade B or equivalent)
A Levels (Grade C or above) in Maths and/or Science
Level 2 English and Maths required (if not already achieved)
3 years Previous experience in industrial electrical maintenance, switchgear maintenance, or power networks.
Completed course on Maintenance of Electrical Switchgear or demonstratable experience of minimum three years working in industry
Completed course in Transformer Construction, Testing & Maintenance or demonstratable experience of minimum three years working in industry
Completed a course or demonstrable knowledge of HV Protection testing or demonstratable experience of minimum three years working in industry
Desirable experience and qualifications
Industry recognized Thermal image training or demonstratable experience of minimum three years.
Industry recognized Partial Discharge Training or demonstratable experience of minimum three years.

Training & Career Development

Apprenticeship Level: Level 4
Typical Duration: 36 months
Professional Registration:
Eligible for Engineering Technician (EngTech)
Progression pathway to Incorporated Engineer (IEng)

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