HV & LV Specialists

What do we offer?

High & Low Voltage Commissioning and Testing Engineers

HV & LV specialists offering expertise in switchgear, protection systems & electrical infrastructure.


HV & LV commissioning including protection testing & hipot testing.


HV & LV maintenance, periodic inspections.

Fault investigation

Fault diagnostic, data analysis.

Asset management

Isolation, Operation & Management of HV & LV systems.

About Us

15 years of experience in HV & LV commissioning

Ion HV Ltd is a family run HV & LV specialist company based in the North west of England, with over 15 years’ experience in HV & LV industry. Having worked in multiple sectors including Renewable & Battery Storage, Transport, & Critical Infrastructure including Data Centres.

We offer HV & LV solutions for a variety of systems across the UK & Ireland.

wind turbines

Our partners

Proud Sponsors of Saints RLFC

We’re delighted to announce the sponsorship of Saints RLFC Women’s Players Player of the Year and Saints Women’s Player of the Year Leah Burke. We wish her and the team the best of luck for the upcoming women’s super league season.

Our services

What can we offer you?

HV Commissioning

  • G59 / G99 protection, Protection relay commissioning & functional testing including PSL, MCL / Communication protocol & Protection updates.
  • HV testing including Hipot / dielectric withstand testing, insulation resistance, contact resistance, VT & CT primary & secondary commissioning.
  • Switchgear functional testing including control, alarms & indications.
  • SCADA testing including 61850 & Hardwired alarms.

Maintenance & inspections

  • HV & LV Switchgear inspection including PD testing, data analysis, fault investigation. Periodic inspections & scheduled maintenance.
  • Battery charger inspection & maintenance.
  • LVAC Changeover panel / distribution board inspection & maintenance.

Asset Management

  • SAP duties & safety documentation for private networks
  • Fault investigation & diagnostic analysis of HV & LV assets
  • Periodic inspections & scheduled maintenance for HV & LV systems

Our certifications & accreditations

Constructionline Social Value

Constructionline Gold Member

Acclaim accreditation

Interested in our services? Get in touch