Power Transformers Up to 100 MVA. Engineered for the Grid.
Custom-engineered power transformers up to 100 MVA, 132 kV class — designed in-house, tested in our own laboratory, and commissioned with full documentation for state utilities, IPPs, and large industrial consumers.
Product Overview
Bulk Power. Engineered to Specification.
KLR Power Transformers are designed and manufactured for the most demanding segment of the transformer market — bulk power transmission and step-up/step-down applications at grid scale. Every unit begins as a custom engineering project: our design team models each transformer in 3D SolidWorks, optimises the core and winding geometry for the specific load profile, and validates thermal performance before a single component is ordered.
The result is a power transformer with documented type-test credentials, low-loss core design, and full technical traceability — manufactured at our IDA Pashamylaram facility to both IS and IEC standards as applicable.
Technical Specifications
- Up to 100 MVA Capacity range:
- Up to 132 kV Voltage class:
- 50 Hz Frequency:
- ONAN, ONAF, OFAF, ODAF configurations Cooling:
- CRGO step-lap lamination — minimum no-load loss design Core:
- Oil-impregnated paper, Vapour Phase Dried (VPD) Insulation:
- IS 2026, IEC 60076 — type tested with documented reports Standards:
- OLTC or OCTC to specification Tap changer:
- Porcelain or oil-filled to site and voltage requirements Bushing:
- Full routine tests; type tests available; third-party witnessed testing on request Testing:
Key Features
✓ no standard catalogue units, every transformer is designed for its application Custom-engineered to every order specification
✓ performance validated before production begins 3D SolidWorks thermal and electromagnetic modelling
✓ lowest achievable no-load losses for long-term efficiency CRGO step-lap core
✓ complete dielectric integrity across the full insulation system Vapour Phase Drying (VPD)
✓ on-load tap changing for grid voltage regulation requirements OLTC capability
✓ test reports issued with every unit as standard Full type-test documentation
✓ meets all national and international procurement specifications IS 2026 and IEC 60076 compliance
Applications
- State electricity boards and central transmission utilities
- Independent Power Producers (IPPs) — step-up from generation voltage
- Large industrial plants and captive power consumers
- EPC contractors for grid infrastructure projects
- Renewable energy grid interconnection (solar and wind evacuation)
- Railway traction substations
- Petrochemical, refinery, and heavy industrial consumers
Why KLR for Power Transformers
✓ not adapted from a standard design, every unit is built for its specific duty Custom-engineered from first principles
✓ full routine tests and type tests performed on-site with third-party witness option In-house testing laboratory
✓ complete test reports accompany every unit as standard Type-test documentation
✓ power transformer engineering credibility built over three decades 35+ year engineering heritage
✓ commissioning, AMC, on-site servicing, and reconditioning available Full lifecycle support
Discuss Your Power Transformer Specification.
Share your MVA rating, voltage class, cooling requirement, and site conditions — our engineering team responds with a technical proposal.