TRANSFORMER
At Mashel Electric, we specialize in manufacturing and supplying high-performance transformers tailored to meet the rigorous demands of modern power systems. Our extensive range includes Distribution Transformers, Power Transformers, and Dry-Type Transformers, designed to ensure optimal efficiency, safety, and longevity. With state-of-the-art manufacturing facilities and a team of experienced engineers, we deliver solutions that adhere to international quality standards, providing reliable power transformation for utilities, industries, and infrastructure projects.
Whether you require step-down transformers for industrial distribution or custom-designed units for renewable energy integration, we have the expertise to deliver. We prioritize core material quality, precision winding, and robust tank construction to minimize losses and maximize operational life. Our commitment to innovation and customer satisfaction makes us a preferred partner for all your electrical transformation needs. Trust Mashel Electric to power your growth with efficiency and reliability!
FUNCTIONALITY
Mashel Electric’s transformers operate on the principle of electromagnetic induction to transfer electrical energy between circuits while changing the voltage level. Comprising a high-grade CRGO silicon steel core and electrolytic copper windings, our transformers efficiently step up or step down voltage levels to suit transmission and distribution requirements. Designed to handle varying load conditions, they ensure stable voltage output, minimal core losses, and quiet operation. Equipped with advanced cooling systems and protective devices, our transformers guarantee safe and continuous power supply under diverse environmental conditions.
Technical Specifications
| Parameter | Specification |
|---|---|
| Transformer Type | Oil Cooled (ONAN/ONAF) / Dry Type (Cast Resin) |
| Capacity (kVA) | 25 kVA to 5000 kVA (Customizable up to 10 MVA) |
| Voltage Class | 11 kV / 22 kV / 33 kV / 66 kV Class |
| Frequency | 50 Hz / 60 Hz |
| Core Material | High-Grade CRGO (Cold Rolled Grain Oriented) Silicon Steel |
| Winding Material | Electrolytic Grade Copper / Aluminum (as per request) |
| Vector Group | Dyn-11, Dyn-1, Yn-yn0, etc. (Standard and Custom) |
| Impedance Voltage | As per IS/IEC Standards or Customer Specification |
| Cooling Method | ONAN (Oil Natural Air Natural) / ONAF (Oil Natural Air Forced) |
| Standards Compliance | IS 2026, IS 1180, IEC 60076, BIS Certified |
Benefits
- High Energy Efficiency: Designed with low-loss CRGO cores to minimize no-load losses, reducing electricity consumption and operational costs.
- Enhanced Durability: Robust tank construction and superior quality insulation materials ensure a long operational life, even in harsh environments.
- Operational Safety: Equipped with advanced protection devices like Buchholz relays, PRDs, and OTI/WTI to prevent faults and ensure personnel safety.
- Low Noise Operation: Precision core stacking and tightening techniques significantly reduce audible noise levels, ideal for residential and sensitive areas.
- Thermal Reliability: Effective cooling systems and high-quality transformer oil ensure stable performance under continuous full-load conditions.
- Minimal Maintenance: High-quality components and design require less frequent maintenance, offering peace of mind and lower lifecycle costs.
- Eco-Friendly Options: Available in dry-type configurations that eliminate the risk of oil leaks and fire hazards, supporting green building standards.
Applications
- Power Utilities & Substations: Essential for stepping down high transmission voltages to distribution levels for residential and commercial use.
- Industrial Manufacturing: Powers heavy machinery and critical processes in steel plants, chemical industries, and automotive factories.
- Renewable Energy Projects: Step-up transformers for solar power plants and wind farms to connect generated power to the grid.
- Commercial Complexes: Reliable voltage transformation for shopping malls, IT parks, hospitals, and high-rise buildings.
- Infrastructure & Railways: Specialized transformers for traction substations, metro rail networks, and airports.
- Mining Operations: Rugged transformers designed to withstand demanding environments and power excavation equipment.
- Data Centers: High-reliability transformers ensuring clean and stable power for sensitive server infrastructure.
- Residential Townships: Distribution transformers for housing societies and real estate developments.
Manufacturing Excellence
- CRGO Core Processing: Utilization of laser-cut, high-permeability grain-oriented silicon steel for minimal core losses and quiet operation.
- Precision Winding: Automated winding machines ensure uniform coil tension and layering, enhancing short-circuit strength and insulation life.
- Vacuum Impregnation: Windings undergo vacuum pressure impregnation (VPI) to remove moisture and ensure deep penetration of insulating varnish.
- Tank Fabrication: Heavy-duty steel tanks manufactured with precision welding and finished with a 7-Tank powder coating process for superior corrosion resistance.
- Oil Purification: Transformer oil is filtered and dehydrated to achieve high dielectric strength before filling under vacuum.
Quality Assurance
- Ratio & Vector Group Test: To verify the turns ratio and phase relationship between windings.
- No-Load Loss Test: Measuring core losses to ensure adherence to efficiency standards (Star Ratings).
- Load Loss Test: Verifying copper losses and impedance voltage for performance under load.
- High Voltage Test: Applying high voltage to ensure the insulation system can withstand surges and transients.
- Temperature Rise Test: Validating the cooling system's ability to limit temperature rise within standard limits.
Key Features
High Efficiency Design
Engineered for maximum energy savings with low no-load and load losses, complying with the latest Star Rating standards (IS 1180).
Superior Core Quality
Constructed with high-grade CRGO silicon steel to ensure low magnetizing current and minimal core saturation.
Robust Tank Construction
Corrugated or radiator-finned tanks designed for durability, effective heat dissipation, and leak-proof operation.
Advanced Cooling Systems
Efficient ONAN/ONAF cooling configurations to maintain optimal temperature and prevent overheating.
Safety Devices
Fitted with standard protection features including Buchholz relay, Pressure Relief Device (PRD), and Oil/Winding Temperature Indicators.
Low Noise Operation
Special core joint designs and clamping structures reduce vibration and audible noise to minimum levels.
Premium Insulating Oil
Use of high-grade mineral oil with excellent dielectric strength and thermal conductivity for reliable performance.
Off-Load Tap Changer
Standard provision for voltage regulation with an off-load tap changer (OLTC) to stabilize output voltage.
Short Circuit Strength
Rigid winding bracing and insulation design to withstand high mechanical stresses during fault conditions.
Corrosion Protection
Tanks undergo a 7-Tank phosphating and powder coating process for superior finish and weather resistance.
Eco-Friendly Options
Available in Dry-Type/Resin Cast designs for indoor installations where fire safety is a priority.
Customizable Design
Flexible manufacturing capabilities to accommodate special voltage ratios, vector groups, and dimension constraints.
Why Choose Mashel Electric
Mashel Electric is a leading transformer manufacturer, dedicated to delivering quality, innovation, and reliability.
IS/IEC Standards
All transformers are manufactured strictly adhering to IS, IEC, and BIS standards, ensuring top-tier quality.
Star Rating Compliance
We offer energy-efficient transformers that meet Bureau of Energy Efficiency (BEE) star rating requirements.
Modern Infrastructure
Our facility is equipped with modern testing labs and handling equipment to produce reliable high-capacity transformers.
Custom Solutions
We specialize in tailor-made transformer solutions to meet specific site conditions and technical requirements.
Timely Delivery
Efficient production planning ensures that your transformer orders are delivered safely and on schedule.
Technical Support
Comprehensive after-sales support and technical guidance for installation, commissioning, and maintenance.
Frequently Asked Questions
We manufacture a wide range of transformers including Oil Cooled Distribution Transformers, Power Transformers, Dry-Type (Cast Resin) Transformers, and Special Purpose Transformers for various industrial and utility applications.
Yes, our transformers are designed with high-grade CRGO cores and optimized winding designs to minimize losses. We supply transformers compliant with BEE Star Rating standards (IS 1180), ensuring maximum energy efficiency and reduced operational costs.
All our transformers are manufactured and tested in accordance with Indian Standards (IS 2026, IS 1180) and International Electrotechnical Commission (IEC 60076) standards. We are also BIS certified, ensuring strict quality control.
Absolutely. We specialize in custom solutions. Whether you need a specific voltage ratio, impedance value, dimension constraint, or special environmental protections, our engineering team can design a transformer to meet your exact specifications.
We have a fully equipped in-house testing laboratory capable of performing all Routine Tests, Type Tests, and Acceptance Tests, including High Voltage testing, Impulse testing, and Temperature Rise testing, ensuring every unit meets quality benchmarks.