Solar · Grid · Storage
Transformers for solar, grid and storage
Engineered in India, built to IEC, delivered worldwide.
Lead product
Solar inverter duty transformers
- Manufacturing since 1986
- 40 years
- Manufacturing since 1986
- Type-tested designs
- 20 MVA, 33/11 kV
- Type-tested designs
- Manufacturing capability
- 50 MVA, 132 kV
- Manufacturing capability
- Radiator capacity
- 120 t/month
- Radiator capacity
Agra, India · since 1986
5 kVA to 50 MVA, built under one roof
We make the transformer, and the tanks, radiators and fin walls that go into it.
Applications
Solar
Inverter duty and step-up transformers for PV plants
Battery energy storage (BESS)
Transformers for battery storage: in development
Wind
Step-up transformers, engineered per project
Utilities & grid
Power and distribution transformers for utilities
Railways
RDSO auxiliary transformers for Indian Railways
Industry & infrastructure
Plants, buildings, data centres and campuses
Industries we serve
- Renewable energy
- Energy storage
- Utilities
- Railways
- Industries
- Infrastructure
- Data centres
- Oil and gas
- EV charging
- Defence
- Temporary power
- Something else?Talk to engineering
Product range
The range at a glance
Show as a table
| Product | Rating |
|---|---|
| Auxiliary transformers | 5 kVA – 100 kVA |
| Distribution transformers | 25 kVA – 3,150 kVA |
| Solar inverter duty transformers | 100 kVA – 25 MVA |
| Power transformers | 3.15 MVA – 50 MVA |
Power
Power transformers
Step-up and step-down transformers up to 50 MVA, 132 kV, for transmission and industry.
3.15 MVA – 50 MVA · up to 132 kV
View data sheet
Distribution
Distribution transformers
Low-loss, BIS-marked distribution transformers for utilities, industry and infrastructure.
25 kVA – 3,150 kVA · up to 33 kV
View data sheet
Renewable energy
Solar inverter duty transformers
Steps inverter output up to grid voltage. Designed for harmonics, daily cycling and high ambient heat.
100 kVA – 25 MVA · up to 66 kV
View data sheet
Distribution
Data centre transformers
Low-loss supply for IT, UPS and cooling loads that run continuously.
up to 3,150 kVA · up to 33 kV
View data sheetRailway and auxiliary
Auxiliary transformers
Single-phase auxiliary supply for railway signalling and electrification.
5 kVA – 100 kVA · 11 kV and 25 kV railway systems
View data sheet
Special-purpose
Special-purpose transformers
Custom-engineered transformers for specific industrial and power applications.
Custom-built to specification
View data sheetComponents by Mechanica Elec
Tanks and radiators
Transformer tanks
CNC-cut, leak-tested tanks, painted to ISO 12944.
View data sheet
Tanks and radiators
Pressed-steel radiators
Radiators type-tested at ERDA, approved for transformers up to the 220 kV class.
300 mm and 520 mm wide; centres up to 3,500 mm
View data sheet
Tanks and radiators
Corrugated fin walls
Made on two in-house lines for lighter, sealed and better-cooled tanks.
View data sheetWhy Trafo Power
01
Type-tested, not just designed
Our designs are type-tested at CPRI and ERDA up to 20 MVA, 33/11 kV, including temperature-rise, lightning-impulse and short-circuit withstand tests. Reports are available on request.
02
Tank to terminal, in-house
Tanks, pressed-steel radiators and corrugated fin walls are made in-house by our Mechanica Elec unit, so we control quality and lead time.
03
Guaranteed losses
Every offer states guaranteed no-load and load-loss figures, so you can compare suppliers on lifetime cost, not just price.
04
Built for export
Designs to IEC, ANSI, BS and IS, with BIS-marked distribution transformers to IS 1180 (Part 1): 2014.
Events
- Hannover Messe 2026 · Hannover, Germany
Customers
Approved by utilities, PSUs and industry across India
Approved vendor for DVVNL, MVVNL, PVVNL, PUVVNL, UPCL, IOCL Noida and others.
Manufacturing
Installation and commissioning
Repair and upgrading
After-sales assistance
Emergency service
Testing and oil care
Annual maintenance (AMC)
Engineering notes
From the blog
Choosing the right distribution transformer rating for an industrial plant
How to size a distribution transformer for an industrial plant, with reference to IS 1180, IS 2026 and IEC 60076.
Read article →Transformer losses: why the cheapest quote is rarely the cheapest transformer
No-load and load losses cost money every hour a transformer is energised. Loss capitalisation turns them into a number you can compare across offers.
Read article →
How to read a transformer nameplate
Rated power, vector group, impedance, insulation levels and cooling class: what each line on the rating plate means and why it matters on site.
Read article →Tell us about your project
Share the rating, voltages and timeline. Our engineers will reply with an offer.