Power Transformers up to 10 MVA
Amrest Electricals Limited manufactures power transformers for modern power distribution and transmission systems, serving utilities, industries and renewable energy projects.
Our transformers are built for voltage regulation, low losses and high operational efficiency, helping projects reduce downtime and energy losses.
Power transformer at a glance
| Parameter | Details |
|---|---|
| Product | Power transformers |
| Rating | Up to 10 MVA |
| Type | Outdoor, oil-cooled |
| Voltage range | Up to 33 kV and above |
| Phases available | Three phase |
| Cooling types | ONAN, ONAF, OFAF, OFWF |
| Design | Core-type and shell-type |
| Insulation class | Class A, B, F depending on requirement |
| Winding material | Electrolytic copper / aluminium |
| Tapping range | Off-circuit tap changer and on-load tap changer (OLTC) |
| Efficiency | High energy efficiency with reduced losses |
Final ratings and configuration are defined as per customer/project requirement.
Built for grid-scale performance
Optimized for efficiency
Reduced no-load and load losses for better energy savings.
Thermal management
Overload capability and cooling designs (ONAN, ONAF) to extend insulation life.
Durable in service
Built for long-term reliable service under varied load conditions and harsh outdoor environments.
Short-circuit withstand
Robust active part and core construction designed to withstand severe fault conditions.
Sealed or conservator design
Hermetically sealed or conservator options to suit utility protection and maintenance preferences.
Premium materials
CRGO core
High-grade cold rolled grain oriented (CRGO) steel for minimal core losses and good magnetic properties.
Copper / aluminium windings
Electrolytic copper or EC grade aluminium windings for conductivity, reduced losses and reliable thermal performance under load.
Insulation materials
Thermal and electrical insulation systems to protect against high voltage stress and support a longer service life.
Where power transformers are used
- Utility power primary distribution networks
- Primary grid substations (transmission-to-distribution)
- Utility-scale renewable integration (wind and solar farm transformers)
- Large commercial and industrial main power supply
- Critical infrastructure (hospitals, data centers, transport)
- Rural electrification step-down stations
What to send us
Share as many of these details as you have, or send your datasheet or BOQ directly.