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)