Site Electrical Test Engineer

An experienced Site Electrical Test Engineer is required to support on-site testing, commissioning, and maintenance of transformers and associated equipment. This is a site-based role involving regular UK travel and occasional overseas work.

Key Responsibilities

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• Lead on-site transformer testing, commissioning, and fault diagnosis
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• Carry out planned maintenance, repairs, and performance optimisation
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• Ensure full compliance with RAMS, Health & Safety, and site regulations
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• Accurately complete test documentation, reports, and certification
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• Represent the business professionally on customer sites
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• Travel across the UK and internationally as required
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Testing & Commissioning

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• Perform electrical testing including:\n
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  • Insulation Resistance, HV/Applied Voltage, and HV Withstand
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  • Transformer Ratio, Winding Resistance & SFRA
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  • HV/LV CT testing and vector group verification
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  • Bushing testing (Tan Delta) and tapchanger checks
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• Conduct protection and functional testing:\n
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  • Relays (Buchholz, Oil Surge, Rupture Detector)
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  • OTI/WTI calibration and auxiliary equipment (PRDs, gauges, breathers)
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• Complete system checks:\n
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  • Cooling systems, marshalling boxes, and control wiring
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  • Oil sampling/analysis, impact recorder reviews, Ashridge setup
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Installation & Assembly

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• Carry out mechanical installation of transformers and components:\n
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  • Radiators, conservators, cooling systems
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  • Bushings, tap changers, gaskets, seals
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• Complete electrical installation work:\n
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  • Wiring, termination, and control/protection systems
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  • Marshalling boxes and cable systems
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• Perform functional checks on alarms, trips, and protection systems
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Maintenance & Refurbishment

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• Support oil management (draining, filling, filtration, sampling)
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• Replace and upgrade gaskets, seals, and transformer accessories
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• Inspect and maintain transformer components to ensure reliability
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Site Safety & Operational Excellence

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• Establish safe working areas, barriers, and lifting operations
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• Operate lifting and rigging equipment safely
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• Identify and report hazards, incidents, and near misses
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• Interpret technical drawings and schematics to guide work
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Beneficial Skills / Experience:

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• Proven experience in electrical testing within engineering environments
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• Strong background in transformer testing and commissioning
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• Experience in site-based/live environments
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• Relevant electrical qualifications and regulatory knowledge
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• Ability to read and interpret drawings and schematics
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• Strong understanding of Health & Safety practices
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• Detail-oriented with the ability to work independently
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• Flexible with travel requirements
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Additional Details:

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• Competitive salary (DOE)
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• 25 days holiday + bank holidays
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• Quarterly profit share scheme
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• Healthcare cash plan & Employee Assistance Programme
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• EV salary sacrifice scheme
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• Pension
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