Testing and commissioning services
Solar Farm HV Maintenance and Testing Services Australia
Talk to an engineer: 1300 730 499 or service@megavar.com.au
Protecting Your Solar Investment with Proactive HV Asset Management
Solar farm HV infrastructure operates in some of Australia’s harshest environments – extreme heat, dust, UV exposure, and temperature cycling. Without proactive maintenance, degradation of transformers, switchgear, protection systems, and cabling can lead to unplanned outages, lost revenue under PPA or merchant arrangements, and voided equipment warranties. Megavar provides structured HV maintenance and testing programmes tailored to the specific requirements of solar farm electrical balance of plant (EBoP).
Maintenance Services
- Transformer maintenance – DGA oil sampling and analysis, oil quality testing (BDV, moisture, acidity), insulation resistance, tan delta, winding resistance, SFRA, bushing power factor, OLTC servicing, and cooling system inspection.
- Switchgear and circuit breaker maintenance – Contact resistance, insulation resistance, timing tests, SF6 gas quality, mechanism lubrication, and secondary circuit verification.
- Protection relay testing – Secondary injection verification of all protection settings using Omicron CMC 356. Confirmation of trip times, pickup levels, and scheme logic operation.
- MV cable and termination inspection – Visual inspection, thermal imaging, partial discharge screening, and insulation resistance testing.
- Earthing system testing – Earth grid resistance measurement, bonding continuity, and step and touch potential spot checks.
- Thermal imaging (IR scanning) – Infrared thermography of all HV and MV connections, busbars, cable terminations, and switchgear contacts to identify hot spots.
- SCADA and communications verification – Confirmation that all SCADA points, alarms, and controls remain correctly mapped and operational.
Maintenance Programme Structures
We design maintenance programmes aligned with manufacturer recommendations, warranty requirements, and the operational risk profile of each solar farm. Programmes range from annual scheduled maintenance shutdowns through to multi-year condition-based strategies with interim DGA monitoring and thermography. We also provide fault investigation and emergency call-out, subject to crew and equipment availability.
Why Choose Megavar for Solar Farm HV Maintenance and Testing?
- Australia-Wide Expertise: We service solar farms across the entire country, from major urban centres to remote locations.
- Industry-Leading Knowledge: Our team has years of experience in solar farm HV maintenance and testing, ensuring compliance with Australian energy standards.
- Comprehensive Maintenance & Testing Solutions: Covering switchgear servicing, transformer diagnostics, and relay protection assessments.
- Minimised Downtime & Optimised Performance: Our proactive HV maintenance and testing approach prevents failures and maximises efficiency.
- Ongoing Support & Performance Monitoring: Beyond scheduled maintenance, we provide system monitoring and troubleshooting to keep your solar farm operating at its best.
Partner with Megavar for expert solar farm HV maintenance and testing. Our team ensures your high-voltage infrastructure is compliant, efficient, and built for long-term success. Contact us today to discuss your HV maintenance and testing requirements!
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Capability statement
High-Voltage Testing, Commissioning and Maintenance Services
Primary plant testing, protection and SCADA commissioning, substation maintenance and the design capability behind them.
Clients
What our clients say
Johno and his team provide Bis Industries with a complete high voltage maintenance strategy and works execution for our site. The service is excellent and our partnership with Megavar ensures we have a high level of confidence in both performance and reliability.
Megavar has repeatedly demonstrated their ability to quickly mobilise their highly skilled technicians to meet project demands and effectively develop solutions in a highly proficient and professional manner.
Megavar have been a pleasure to deal with, and we look forward to continuing to work closely on future projects for years to come.
FAQ
Frequently Asked Questions Solar Farm HV Maintenance and Testing
How often should solar farm HV equipment be maintained?
Typical schedules: annual DGA oil sampling, annual thermography, routine electrical testing every 3–5 years, protection relay testing every 4–6 years, and CB maintenance per manufacturer recommendations. Frequency increases for ageing or critical assets.
Can maintenance be performed without shutting down the entire solar farm?
Does Megavar provide emergency fault response for solar farms?
Yes, subject to crew and equipment availability. We provide emergency call-out for fault investigation, including mobilisation of test equipment for on-site diagnosis and repair support.
What is included in a solar farm HV maintenance report?
Detailed test results for all equipment, comparison against standards and factory data, DGA trend analysis, thermography images with anomaly identification, condition ratings, and prioritised maintenance recommendations.
What solar farm HV maintenance tests does Megavar perform?
Can Megavar provide long-term maintenance agreements for solar farms?
ISO Certified and Licensed in Every State
Megavar is certified to ISO 9001 (quality), ISO 14001 (environment) and ISO 45001 (safety), and holds electrical contractors licences in every Australian state.
Request a quote
Tell us about the job
An engineer replies by the end of the next business day (Monday to Friday, 8:30 am to 5:00 pm). Scope still forming? Send what you have. Outage or urgent fault? Call to discuss the site, access window and mobilisation.
Talk to us now
1300 730 499 service@megavar.com.au Hobart · Launceston · Adelaide · Newcastle · GladstoneExplore Our other services
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