Megavar delivered HV testing and protection system commissioning for the Bluegrass BESS (Blue Grass) project in Queensland's Western Downs, working in partnership with
• Combines Frequency Domain Spectroscopy (FDS) and Polarisation/Depolarisation Current (PDC) methods
• Provides reliable moisture and ageing diagnostics in transformer insulation
• Wide frequency range (50 µHz to 5 kHz, with 10 µHz reachable via approximation, per the Omicron Dirana FDS+PDC+ datasheet) for comprehensive response analysis
• Works on oil-paper insulated transformers, bushings, cables, and generators
• Eliminates the need for oil sampling – fully non-invasive testing
• Compact and portable – field-ready with rugged carry case
• Integrated ambient and oil temperature compensation for reliable results
• Easy connection and guided workflows via OMICRON software
• Compatible with PTM (Primary Test Manager) for automated reporting
• Supplied with test cables, PC software, temperature sensors, and transport case
Tell us about your project and we will get back to you within 24 hours with availability and a quote.
Or call us directly on 1300 730 499
We’re available Mon – Fri 8am – 5pm
Megavar engineers use this unit on commissioning projects across Australia. Hire it from a team that knows it inside out.
All Megavar test equipment is maintained under a documented calibration programme. Instruments are calibrated either by external calibration laboratories or in-house against reference standards that are themselves laboratory-calibrated, with measurement traceable to Australian national measurement standards held by the National Measurement Institute. A current calibration certificate is available on request. If your project requires a specific calibration interval, test standard, or documentation for a client submission, tell us at enquiry on 1300 730 499 and we will confirm what applies before you commit.
Have a setup or application question about this instrument? Talk directly to a Megavar commissioning engineer — no call centre, no guesswork.
It measures dielectric response characteristics to evaluate the insulation condition of HV equipment such as transformers, bushings, and cables—particularly the ageing and moisture content of paper insulation systems.
By applying a low-frequency AC or DC voltage and measuring the insulation’s response over time (PDC) or frequency (FDS), the Dirana can detect ageing, moisture ingress, and degradation that may not be visible through standard insulation resistance or tan delta testing.
Dirana measurements are aligned with IEC 60076-18 and IEEE C57.161 guidelines for moisture assessment in power transformers.
No. Dirana can assess moisture in paper insulation without requiring oil sampling or transformer disassembly, saving time and reducing risk.
Test time depends on the object size and frequency range, typically ranging from 1 to 4 hours per phase for full FDS analysis. Faster results can be achieved using the combined FDS-PDC method.
No. Testing must be performed on de-energised equipment with appropriate isolation and safety clearance.
The rental includes the Dirana main unit, test cables, temperature sensors, PC interface, software access, and a rugged carry case. A compatible laptop can be included on request.
Yes. We offer setup assistance, test configuration guidance, and help interpreting results. PTM software is included for automated workflows and reporting.
The minimum hire is 3 days. Longer-term weekly and monthly rates are available at reduced pricing.
Yes. We provide nationwide delivery and pickup or you can arrange your own freight if preferred.
Submit your rental request online, and our team will respond promptly with availability, pricing, and expert advice.
Once confirmed, we’ll quickly process your booking and dispatch the equipment. Delivery and collection can be arranged to suit your schedule.
Get to work with reliable, industry-grade test equipment. Our technical team is available to support you every step of the way.
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