WPS staff installing a power transformer

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Site Electrical Testing Engineer

Site Electrical Testing Engineer

The role

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

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.

To apply, please email your current CV along with a cover letter to careers@wilsonpowersolutions.co.uk. All applicants must be able to demonstrate their right to work in the UK. No agencies.

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Key Responsibilities

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

Transformer Testing Scope

Power Transformers

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

Distribution Transformers

Insulation Resistance testing
Applied Voltage / HV Withstand testing
Winding Resistance testing
Transformer Ratio testing
Vector Group verification
HV and LV CT testing
Marshalling and control wiring checks
Functional testing of auxiliary equipment including: Breathers, OTI & WTI, Magnetic Oil Guage, Buchholz Relay, Pressure Relief Device and Pressure & Vacuum Guages