Site Electrical Testing Engineer

This is an exciting opportunity to join a brilliant team to support the continued growth of an established family-owned business in Leeds.

We are seeking an experienced Site Test Engineer to join great Operations team. This role is primarily site-focused, requiring regular travel across the UK and, where required, overseas.

The Role:

Reporting to the Head of Site Services, you will be responsible for the on-site testing, commissioning and maintenance of transformers and associated equipment.

This is a hands-on role combining mechanical, electrical, and testing responsibilities, requiring a high level of technical competence, safety awareness, and the ability to work independently on customer sites.

Key Responsibilities

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• Lead and carry out on-site transformer testing and commissioning activities
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• Perform mechanical assembly and installation of transformers and associated equipment in line with Transformer testing procedures
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• Carry out fault finding, diagnostics, and repair work
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• Undertake transformer maintenance activities
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• Read and interpret technical drawings and schematics
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• Complete all test documentation and reports accurately
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• Ensure all work is carried out in line with site RAMS and Health & Safety requirements
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• Represent the business professionally when working with customers and stakeholders
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• Travel regularly to sites across the UK and overseas as required
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Transformer Testing Scope

Power Transformers

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• Insulation Resistance
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• HV Withstand Testing
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• Transformer Ratio Testing
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• SFRA
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• Winding Resistance Testing
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• HV & LV CT Testing
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• Bushing Testing including Tan Delta
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• Tapchanger Checks
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• Buchholz Relay Alarm and Trip Testing
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• OTI and WTI Calibration
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• PRD, MOG, Air Bag Relay and Oil Surge Relay functional checks
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• Marshalling Box testing
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• Cooling system checks including fans
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• Rupture Detector Relay testing
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• Impact Recorder results review
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• Oil sampling including pre- and post-circulation analysis
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• Ashridge setup
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Distribution Transformers

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• Insulation Resistance testing
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• Applied Voltage / HV Withstand testing
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• Winding Resistance testing
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• Transformer Ratio testing
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• Vector Group verification
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• HV and LV CT testing
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• Marshalling and control wiring checks
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• Functional testing of auxiliary equipment including:
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- Breathers

- OTI and WTI

- Magnetic Oil Gauge

- Buchholz relay

- Pressure Relief Device

- Pressure and vacuum gauges

Additional Site Responsibilities

Mechanical Assembly

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• Installation of radiators, conservators, and cooling systems
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• Mounting HV and LV bushings and tap changers
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• Gasketing and sealing to prevent oil leaks
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• Installation of marshalling boxes, cable tray, and accessories
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• Torque checking of fixings
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Electrical Assembly

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• Termination of internal and external wiring
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• Installation and wiring of control and protection devices
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• Performing functional checks on alarms and trips
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Maintenance and Refurbishment

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• Oil draining, filling, and filtration support
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• Replacement of gaskets, seals, and breathers
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• Inspection and upgrading of transformer accessories
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• Oil sampling for analysis
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Site Safety and Compliance

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• Setting up safe working areas and barriers
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• Following RAMS and site safety rules
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• Use of lifting and rigging equipment
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• Reporting hazards, near misses, and incidents
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Knowledge and Experience

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• Proven experience in electrical testing within an engineering environment
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• Demonstrable experience in transformer testing and commissioning (essential)
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• Experience working in site-based roles and live environments
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• Relevant electrical qualifications and strong knowledge of regulations
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• Ability to read and interpret electrical drawings and schematics
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• Strong understanding of Health and Safety and safe systems of work
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• Methodical approach with strong attention to detail
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• Good communication skills and ability to work independently on site
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• Flexible and willing to travel as required
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Salary and Benefits

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• Competitive salary (depending on experience)
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• 25 days holiday plus bank holidays
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• Company profit share scheme (paid quarterly)
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• Healthcare cash plan and Employee Assistance Programme
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• EV salary sacrifice scheme and EV charging on site in Leeds
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• Pension scheme
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Job Types: Full-time, Permanent

Experience:

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• Working on site fitting distribution and power transformers: 1 year (required)
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• Working within a engineering environment: 1 year (required)
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• The ability to understand mechanical and schematic drawings : 1 year (required)
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• Health & Safety and conducting risk assessments : 1 year (required)
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