High Voltage Testing
HV withstand, partial discharge, VLF and tan-delta diagnostics on cables, switchgear and apparatus up to transmission class.
Hertz Engineering & Services delivers high- and low-voltage testing, commissioning, maintenance and engineering for offshore energy, mining, utilities and industrial clients across Australia, Norway and beyond — led by engineers with 15+ years on the world's most demanding projects.
Illustrative example — representative of the checks performed on every project, not live data from a specific site.
One accountable partner across testing, commissioning, maintenance and consultancy — so your asset reaches handover on time, to standard, and de-risked.
HV withstand, partial discharge, VLF and tan-delta diagnostics on cables, switchgear and apparatus up to transmission class.
LV distribution, MCC, panel and earthing verification — insulation resistance, continuity, polarity and functional checks to AS/NZS & IEC.
End-to-end pre-comm, FAT, SAT, functional testing and energisation management with full QA/QC documentation and ITP control.
Secondary injection, scheme verification and coordination studies for numerical and electromechanical protection across the network.
Ratio, winding resistance, SFRA, oil and contact-resistance testing on power transformers, GIS and air-insulated switchgear.
Preventive and corrective maintenance, planned shutdown support and turnaround execution that compresses downtime windows.
Offshore platform, wind and solar electrical services — from HV array commissioning to grid connection and energisation.
Commissioning engineers, test technicians and supervisors mobilised at short notice — vetted, certified and project-ready.
Studies, design review, protection coordination, witness inspection and independent verification across the project lifecycle.
From offshore platforms to data centres, we work in the environments where an electrical fault is measured in millions — and minutes.
Platform & FPSO electrical
Array & substation comm.
HV reticulation & shutdowns
Transmission & distribution
Solar, wind & storage
Critical power & redundancy
Generation & auxiliaries
Manufacturing, marine & water
We are engaged where the cost of getting it wrong is unacceptable. Here is what that buys you.
A zero-harm culture with rigorous isolation, permit and risk controls. Safety is the precondition for every energisation we sign off, not an afterthought.
15+ years commissioning complex offshore and industrial assets on schedule, with experienced engineers from leading multinationals.
Work executed and documented to IEC, IEEE, AS/NZS, NEK and ISO 9001 — accepted by operators, regulators and insurers worldwide.
Tight, well-rehearsed test programmes and shutdown planning that return your asset to service in the shortest defensible window.
Scale a single specialist or a full commissioning team up and down with demand — no idle headcount on your books.
Structured, auditable test records and certificates delivered digitally — traceable evidence your asset was verified to standard.
Every project follows a controlled, documented sequence — so risk is retired stage by stage, not discovered at handover.
Witness and verify equipment at the manufacturer before it ships.
Inspection, point-to-point and static testing once installed on site.
HV/LV, protection and functional testing against the approved ITP.
Controlled energisation and live functional verification of the system.
Certified records, as-tested documentation and defect-free turnover.
Our engineers led HV testing, protection scheme verification and controlled energisation of an offshore collector substation — coordinating with the EPC, grid operator and marine teams to hit a fixed weather window.
Send us your scope and we'll respond with a qualified team, programme and quotation. Headquartered in India, with engineers deploying across Australia, Norway and worldwide.
Head office in Chennai, India, with engineers deploying across Australia, Norway and beyond. Send us your scope, or reach a key contact directly.
Contact details shown are placeholders — replace numbers, emails and social links with live details before launch.