Solar Farm HV Maintenance and Testing Services Australia
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 emergency call-out and fault investigation services.
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. We provide emergency call-out services 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?
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!
Explore Our other services
HV earthing design and testing: earth grid design, EPR calculations, step and touch voltage analysis, soil resistivity surveys, and compliance testing per ENA EG-0 across Australia.
Windfarm HV commissioning: independent EBoP testing, substation commissioning, MV collector network, protection validation, and AEMO grid compliance for wind farms across Australia.
Substation maintenance services: preventive, corrective, and condition-based maintenance for HV transformers, switchgear, protection, and SCADA across Australia. Omicron test equipment.
Trusted by top enterprises for exceptional results
Explore the latest insights
We’re incredibly excited to share a big milestone in Megavar’s story—we’ve officially opened our new Newcastle branch, located at 22 Gavey Street, Mayfield,
