Transformer Testing & Maintenance
Protect the heart of your electrical distribution network. We provide complete transformer diagnostic testing, insulating oil analysis, winding resistance profiling, and preventative overhauls for power and distribution transformers.
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Maximizing Asset Life & Power Quality
Transformers represent one of the most substantial capital investments in any mining, municipal, or industrial site. Insulation degradation, oil contamination, or mechanical winding displacement can lead to explosive internal faults and months of unbudgeted downtime.
Proactive Condition Monitoring & Field Testing
Our high-voltage specialists perform advanced electrical, chemical, and physical diagnostics to evaluate internal health. From Dissolved Gas Analysis (DGA) to Sweep Frequency Response, we identify latent insulation flaws long before they escalate into catastrophic grid failures.
Our Transformer Testing & Maintenance Solutions
We offer end-to-end testing, fluid diagnostics, and mechanical overhauls designed according to international IEC and IEEE standards.
Transformer Turns Ratio (TTR) Testing
High-accuracy verification of primary-to-secondary voltage ratios, phase displacement, and winding polarity across all tap positions to detect shorted turns and tap changer misalignment.
Insulation Resistance & PI Testing
Megohm insulation resistance measurements combined with Polarization Index (PI) and Dielectric Absorption Ratio (DAR) profiling to evaluate winding insulation state and moisture ingress.
Dissolved Gas Analysis (DGA) & Oil Diagnostics
Laboratory dielectric breakdown voltage, moisture content, neutralization value, and gas chromatography testing to detect internal arcing, thermal hot spots, and cellulose degradation.
Winding Resistance Measurements
Micro-ohm resistance testing across all high-voltage and low-voltage windings to pinpoint loose internal bolted connections, broken copper strands, or worn tap changer contacts.
Power Factor / Tan-Delta Dissipation
AC capacitance and dielectric loss testing across windings and high-voltage bushings to identify microscopic insulation aging and contamination prior to dielectric failure.
Sweep Frequency Response Analysis (SFRA)
Advanced frequency transfer signature profiling used to detect physical winding displacement, core distortion, or internal clamping failure following severe short-circuit faults.
On-Load Tap Changer (OLTC) & Bushing Servicing
Full mechanical inspection and timing of On-Load Tap Changers, contact replacement, bushing porcelain/silicone cleaning, gasket replacement, oil purification, and vacuum dehydration services.
Ensure Your Transformer Reliability Today
Contact our high-voltage engineering team today to schedule oil sampling, diagnostic testing, or comprehensive field servicing for your transformer fleet.
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