In today’s power-driven world, industries cannot afford even a few minutes of power disruption. Transformers are the backbone of any electrical network, and our health has a direct impact on productivity, safety, and business continuity. When a transformer fails unexpectedly, the downtime can lead to heavy financial losses and operational delays.
This is where Ampere Grid Co, a trusted name in electrical transformer repairing service, plays a significant role. With decades of expertise, advanced engineering practices, and a skilled workforce, the company ensures that transformers remain healthy, efficient, and reliable—helping industries stay productive and problem-free.
The Importance of Proactive Transformer Revamp Solutions
Many industries focus only on repairing transformers when a fault occurs. But proactive revamping goes far beyond routine repair. It includes:
- Preventive assessments
- Identifying early signs of failure
- Replacing ageing or damaged components
- Improving transformer efficiency
- Strengthening insulation systems
- Ensuring long-term stability
Ampere Grid Co specializes in these proactive solutions, ensuring that customers get maximum value from our equipment without facing sudden breakdowns or extended shutdowns.
Expert Services That Keep Power Systems Running Smoothly
Ampere Grid Co provides a wide range of advanced on-site transformer restoration and improvement services. Our expertise extends across multiple voltage levels, complex power systems, and large-capacity units.
1. Repairing & Overhauling of Transformers and Reactors up to 400KV Class (On-Site)
The company’s skilled teams perform complete overhauling, fault rectification, insulation strengthening, and internal inspection at the client’s site—even for extremely high-voltage units.
2. Spare Coil Replacement up to 315 MVA, 400KV Class (On-Site)
Replacing coils in such large transformers on-site requires precision engineering and deep technical knowledge. Ampere Grid Co is one of the few companies with proven expertise in this area.
3. Erection, Testing & Commissioning up to 765 KV (AIS & GIS)
From installing heavy electrical systems to final commissioning, our team handles end-to-end technical processes to ensure flawless power system performance.
4. 1000+ Transformers Revamped Globally
Our engineers and technicians have completed 1000+ POH (Planned Overhauling) projects across India and in international locations, showcasing unmatched experience.
A Proven Track Record: Major Transformer Revamps Completed
Ampere Grid Co’s credibility comes from its successful execution of large-scale, high-complexity projects, such as:
- Delta lead modification in 348 MVA, 420KV Generator Transformer at Ratnagiri
- Complete rewinding of 315 MVA, 400KV Auto Transformer for TANTRANSCO
- Overhauling of 315 MVA, 400KV Auto Transformer for TRANSCO, Delhi
- Hot-spot identification in 260 MVA, 230KV Generator Transformer at MAPS
- HV & LV coil replacement of 250 MVA, 220KV Generator Transformer for TANGEDCO
- Capital overhauling of 250 MVA, 220KV Generator Transformer for an IPP
- HV & LV coil replacement of 240 MVA, 220KV Generator Transformer for VTPS
- Capital overhauling of 240 MVA, 220KV Generator Transformer for NTTPS
- Overhauling of 165 MVA, 220KV Generator Transformer for KPCL
- Rewinding of 100 MVA, 220KV Power Transformer for KPTCL
- Periodic overhauling of 42 MVA & 30.24/21.6 MVA Traction Transformers for Central Railways
These projects demonstrate the company’s ability to handle the most challenging transformer requirements irrespective of location, complexity, or size.
How Ampere Grid Co Prevents Downtime with Proactive Revamp Solutions
1. Early Fault Detection and Analysis
Using advanced testing, thermal scanning, oil analysis, and diagnostic tools, the company identifies potential weak points in transformers before we lead to major failures.
2. Strengthening Ageing Components
Aged insulation, coils, bushings, or core materials are improved or replaced to maximize transformer lifespan and efficiency.
3. Improving Cooling and Load Management
Transformers often overheat due to load stress. Ampere Grid Co applies engineering tweaks to enhance cooling systems and prevent load-related failures.
4. On-Site Repairs to Avoid Long Shutdowns
Our highly trained technicians perform almost all services—including rewinding and coil replacement—directly at the site, eliminating delays related to transportation.
5. Enhancing Reliability Through Overhauling
Our POH processes help restore transformers to near-new condition, improving performance and reducing failure risks.
6. Ensuring Safety & Compliance
Every repair and revamp follows strict quality and safety standards, ensuring compliance with statutory norms and creating a safer operating environment.
Why Choose Ampere Grid Co for Electrical Transformer Repairing Service?
Choosing Ampere Grid Co means partnering with a team that understands the critical nature of transformer performance and downtime prevention.
- Unmatched Experience (1000+ Transformers Revamped) – Our experience across India and abroad gives them deep insights into transformer behaviour across different industries and environments.
- On-Site Capability for Large Transformers – Our expertise in on-site coil replacement and overhauling saves industries significant time and cost.
- Highly Skilled Engineers & Technicians – Every project is handled by a trained team with hands-on experience across 220KV, 400KV, and 765KV systems.
- Proven Track Record in High-Capacity Transformers – From 42 MVA to 348 MVA units, our project portfolio demonstrates excellence in high-voltage transformer revamping.
- Fast, Reliable & Efficient Service Delivery – Our focus is on restoring transformer health quickly without compromising quality—minimizing downtime and maximizing productivity.
Frequently Asked Questions (FAQs)
1. How often should transformers undergo planned overhauling (POH)?
Transformers usually require POH every 5–7 years based on load, age, and operating conditions. Regular overhauling helps prevent major breakdowns and extends the equipment’s lifespan.
2. Can Ampere Grid Co handle large transformers on-site?
Yes. The company specializes in on-site coil replacement, rewinding, and overhauling for transformers up to 315 MVA and 400KV class, eliminating the need for factory transport.
3. What tests are conducted before transformer repair or overhauling?
Oil analysis, insulation resistance testing, thermal imaging, winding resistance testing, ratio tests, and hotspot detection are performed to identify issues accurately.
4. How does proactive revamping reduce downtime?
Proactive revamping detects problems early, strengthens weak components, and restores efficiency—preventing sudden failures that can halt industrial operations.
5. Does Ampere Grid Co support utilities and large industries?
Absolutely. They have worked with power utilities, railways, private IPPs, manufacturing units, refineries, and more—handling both routine and emergency transformer requirements.
