Our expertise

Complete high voltage commissioning capability

One specialist partner across the full HV lifecycle — from design and protection studies, through factory acceptance testing, to site commissioning and SAP-controlled energisation on systems up to 132kV.

Voltage range: 11kV – 132kV
Disciplines: 6 specialist services
Coverage: UK-wide

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HV Commissioning

Structured management of commissioning activities so high voltage systems are installed, tested and energised safely, on programme and in full compliance with project specification.

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Protection Testing

Relay protection testing that proves systems operate accurately and selectively under fault conditions — settings, functionality, timing and trip paths verified end to end.

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Transformer Testing

Thorough verification of transformer performance, condition and protection prior to energisation — electrical and functional testing to industry standards.

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Cable Testing

HV cable testing using Very Low Frequency (VLF) equipment for reliable insulation testing on cables up to 33kV, verifying insulation integrity and finding defects before they fail in service.

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Design & Protection Studies

Design and protection grading studies that keep HV systems safe, reliable and fully coordinated with network protection — optimised settings for selective fault clearance and system stability.

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Factory Acceptance Testing

FAT confirms reliability and compliance of HV equipment before it leaves the manufacturer — resolving issues early, cutting on-site risk and protecting programme.

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Need a specialist HV commissioning partner?

Tell us the voltage range, scope and programme dates. A commissioning engineer will come back to you — not a call centre.

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