SERVICES
Stay ahead of failure.
Our predictive maintenance services are designed to identify early signs of degradation or malfunction, allowing corrective action before costly failures occur.
Dissolved Gas Analysis (DGA)
Furan Analysis for paper degradation
Degree of Polymerization (DP)
PCB content testing
Physical and chemical oil analysis
Thermal condition assessment
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Predictive Maintenance
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Electrical Testing & Diagnostics
In-depth performance analysis of critical components.
We apply state-of-the-art electrical testing to assess insulation, winding condition, and mechanical integrity.
Winding Resistance Measurement (WRM)
Transformer Turns Ratio (TTR)
Insulation Resistance Testing
Power Factor Testing (transformer & bushings)
Core Excitation Measurement
TC Ratio, Polarity, and Saturation
Low Voltage Impedance & Leakage Reactance
Sweep Frequency Response Analysis (SFRA)
Phase Angle Relationship
Instrumentation & Protection Circuit Testing
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Preventive Maintenance
Preserve system integrity and extend transformer life.
Preventive care ensures reliability, especially in high-demand or high-risk environments.
Transformer draining and oil filling
Vacuum processing and degassing
Dielectric oil dehydration
OLTC inspection and servicing
Oil-paper insulation regeneration
Inhibitor and passivator addition
Fuller's Earth oil treatment
Compliance-based routine inspections
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Corrective Maintenance
Fast, expert response when it matters most.
When failure or degradation occurs, Nexergy delivers fast, precise on-site solutions.
Transformer assembly, installation, and startup
Transformer disassembly and relocation
Oil leak detection and correction
Gasket, contact, and seal replacement
OLTC synchronization and alignment
Repair and replacement of accessories
Multi-brand part adaptation and integration
Supply of spare parts and components
Specialized Maintenance for Power Transformers and OLTC Systems
At Nexergy Industries, we provide a comprehensive range of services designed to ensure the reliability, efficiency, and long-term performance of power transformers and on-load tap changers (OLTC). With over 17 years of industry experience, our solutions are trusted by utilities, industrial plants, and energy infrastructure providers across the U.S. and beyond.
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OLTC Predictive & Preventive Programs
Dedicated expertise for tap changer reliability.
We apply strict protocols and specialized tools for the servicing of on-load tap changers.
Dynamic Resistance Measurement (DRM)
Vibroacoustic analysis via acceleration sensors
Shaft torque and position testing
DGA on OLTC compartments
Internal inspection and motorized mechanism tuning
Contact wear evaluation and replacement
For more details, download our brochure by clicking.
Customized Maintenance Plans
We tailor our services to your infrastructure.
Whether you need a one-time repair or a long-term asset maintenance partner, Nexergy adapts to your operational schedule, regulatory needs, and system complexity.
Contact Us
Get in touch with our consultants today to make your construction dream a reality.
