Upgrade, Repair & Refurbishment
At Excel Engineers Innovative India Pvt. Ltd., we specialize in repairing, upgrading, and refurbishing transformers of all makes and capacities. With a blend of skilled technicians, advanced equipment, and years of hands-on experience, we ensure fast and efficient solutions without compromising quality.
Our refurbishment process focuses on reusing and optimizing existing materials like steel, oil, and copper while upgrading transformers through rewinding, cooling enhancements, and rating improvements. Preventive maintenance and reconditioning are carried out at our workshop, where we perform thorough cleaning, component analysis, and replacements as per international standards. We also undertake on-site repairs and refurbishments, ensuring minimal downtime and cost-effective results.
Spares & Consumables
We supply genuine spare parts for transformers of all makes and ratings. Depending on customer preference, spares can be stored at our facility, within the client’s premises, or delivered as needed. We also provide customized spare solutions after site inspections, ensuring compatibility and reliability.
Technical Training
To empower plant teams and operators, we offer technical training both at our works and on-site. Training programs are customized based on skill levels and operational needs, and may also be provided during Factory Acceptance Testing (FAT). Key training areas include:
Transformer design and manufacturing process
Site commissioning and testing
Condition monitoring and diagnostics
Transformer oil analysis (DGA and Furan)
Do’s & Don’ts for power transformers
Erection, testing, and commissioning procedures
Oil Sample Analysis & Diagnosis
To empower plant teams and operators, we offer technical training both at our works and on-site. Training programs ar
We provide comprehensive transformer oil testing and diagnostic services through NABL-accredited labs and on-site mobile testing vans. Tests such as Tan Delta, winding resistance, turns ratio, and DGA are performed to identify early warning signs and prevent failures.
Our experts carry out root cause analysis on faulty units, followed by corrective actions such as rewinding, insulation replacement, and active part drying. Once repaired, the transformer is refilled with fresh oil, subjected to high-voltage testing, and delivered back after successful Factory Acceptance Tests (FAT). We also assist with logistics, ensuring safe transportation of units to and from the site.
e customized based on skill levels and operational needs, and may also be provided during Factory Acceptance Testing (FAT). Key training areas include:
Transformer design and manufacturing process
Site commissioning and testing
Condition monitoring and diagnostics
Transformer oil analysis (DGA and Furan)
Do’s & Don’ts for power transformers
Erection, testing, and commissioning procedures
| Repair Type | Excel Engineers Solution |
|---|---|
| Midlife Refurbishment | Extends transformer life by 10–20 years, usually within 3 weeks |
| Simple Repairs | Quick on-site fixes without winding replacement, reducing downtime |
| Partial & Full Rewind | Includes refurbishment and HV testing; duration depends on size and fault (8 weeks+) |
| HV Testing | Confirms repair/refurbishment quality, ensuring compliance with performance standards |