Power Transformers
High-efficiency power transformers engineered for stable performance in demanding industrial and utility applications. Premium-grade materials ensure low losses and long operational life.
Trusted Power Partner
Transforming Energy. Empowering Industries.
Sahara Transformers is an ISO-certified manufacturer delivering precision-engineered power and distribution transformers since 2007. We serve global industrial buyers, EPC contractors, utilities and renewable energy developers with proven, standards-compliant solutions.
Our Product Range
Industrial-Grade Transformer Solutions
Engineered to IS / IEC standards. Designed for demanding industrial, utility and renewable energy applications worldwide.
Distribution Transformers
Safe, efficient and reliable power distribution across industrial, commercial and utility networks. Optimized for minimal losses and consistent performance.
Dry Type & Cast Resin Transformers
Ideal for indoor installations where fire safety and minimal maintenance are critical. Compliant with IEC 60076-11 standards for safe indoor deployment.
Scott Connected Transformers
Custom-built to convert 3-phase to 2-phase or 2-phase to 3-phase power, catering to specialized industrial and traction requirements.
Furnace Transformers
Engineered for high current output and exceptional durability under intensive industrial duty cycles. Designed for metallurgical and foundry applications.
Solar Inverter Duty Transformers
Designed for grid-connected and captive solar power systems. Handles harmonics from inverters with stable voltage transformation and high efficiency.
Compact Substations (CSS)
Factory-assembled, fully integrated and ready-to-install substation solutions designed for fast deployment and significantly reduced on-site work.
IS 1180 (Part 1): 2014 — Amendment No. 1
11kV Energy Efficiency Standards
Maximum Total Losses — Up to 11kV Class Distribution Transformers
| Sl. No. | Rating (kVA) | Impedance (%) | Maximum Total Loss (W) | |||||
|---|---|---|---|---|---|---|---|---|
| Energy Efficiency Level 1 | Energy Efficiency Level 2 | Energy Efficiency Level 3 | ||||||
| 50% Load | 100% Load | 50% Load | 100% Load | 50% Load | 100% Load | |||
| i | 250 | 4.50 | 1050 | 3150 | 980 | 2930 | 920 | 2700 |
| ii | 315 | 4.50 | 1100 | 3275 | 1025 | 3100 | 955 | 2750 |
| iii | 400 | 4.50 | 1300 | 3875 | 1225 | 3450 | 1150 | 3330 |
| iv | 500 | 4.50 | 1600 | 4750 | 1510 | 4300 | 1430 | 4100 |
| v | 630 | 4.50 | 2000 | 5855 | 1860 | 5300 | 1745 | 4850 |
| vi | 800 | 5.00 | 2459 | 7300 | 2287 | 6402 | 2147 | 5837 |
| vii | 1000 | 5.00 | 3000 | 9000 | 2790 | 7700 | 2620 | 7000 |
| viii | 1250 | 5.00 | 3600 | 10750 | 3300 | 9200 | 3220 | 8400 |
| ix | 1600 | 6.25 | 4500 | 13500 | 4200 | 11800 | 3970 | 11300 |
| x | 2000 | 6.25 | 5400 | 17000 | 5050 | 15000 | 4790 | 14100 |
| xi | 2500 | 6.25 | 6500 | 20000 | 6150 | 18500 | 5900 | 17500 |
After-Sales & Maintenance
End-to-End Transformer Services
Comprehensive lifecycle support — from installation and commissioning to preventive maintenance, testing and annual service contracts.
Transformer Repair, Refurbishment & Retrofitting
Complete repair, refurbishment and retrofitting services up to 10 MVA, 33kV. We restore transformer performance to OEM specifications, extending asset life and improving energy efficiency.
Oil Filtration, OLTC Servicing & Leakage Rectification
Professional transformer oil filtration, on-load tap changer (OLTC) servicing and complete leakage rectification to maintain operational safety and extend transformer service life.
Testing & Maintenance for EHV / HV Transformers
Comprehensive diagnostic testing including BDV, DGA (Dissolved Gas Analysis), Tan Delta, Winding Resistance and IR testing to ensure optimal transformer health and performance.
Annual Maintenance Contracts (AMC)
Structured annual and preventive maintenance contracts designed to keep transformers operating at peak efficiency, ensure regulatory compliance and minimise unplanned downtime.
Industries We Serve
Powering Diverse Industrial Sectors
Sahara Transformers delivers certified, high-performance power solutions across critical industries globally.
Power Generation & Distribution Utilities
Engineering, Manufacturing & Automotive
Real Estate & Infrastructure Projects
EPC Contractors & Turnkey Projects
Hospitals, Data Centers & IT Parks
Government & Semi-Government Organizations
Oil, Gas & Heavy Industries
Solar & Renewable Energy Plants
Why Global Buyers Choose Us
Built on Engineering Excellence
Our transformers are trusted by industrial buyers, utilities and EPC contractors across India and international markets.
ISO-Certified Manufacturing
Our production facility operates under strict ISO quality management systems, ensuring every transformer meets IS / IEC international standards.
High-Efficiency Low-Loss Design
Engineered to IS 1180 Amendment 1 Energy Efficiency Level 3 specifications, delivering measurable reductions in operational energy costs.
Export-Ready Global Compliance
Transformers tested and certified for export to international markets. We meet buyer-specified standards including IEC, IS, ANSI and custom requirements.
Dedicated Technical Support
Our experienced engineering team provides pre-sales technical consultation, application-specific design and post-delivery commissioning support.
Custom Engineering Capability
We design and manufacture bespoke transformer solutions — from special voltage ratios to unique environmental ratings — tailored to your exact specifications.
17+ Years of Proven Reliability
Since 2007, Sahara Transformers has built a reputation for product durability and on-time delivery across power utilities, industrial plants and infrastructure projects.