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Solar Transformer Solutions

High-Performance Solar Transformers

Engineered for maximum efficiency, reliability, and long-term performance in solar power generation and renewable energy applications.

Peak efficiency
Operational life
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Product Overview

Reliable Power Solutions for Solar Energy

Voltek solar transformers deliver precise voltage conversion, superior efficiency, and uncompromising safety for utility-scale and commercial solar deployments. Built with high-grade silicon steel cores and copper windings, they minimize losses while maximizing power transmission across the entire generation profile — from sunrise ramp to peak yield.
Voltek Solar Transformers are specially designed as Inverter Duty Transformers, providing efficient voltage step-up from solar inverter output to the medium-voltage grid while ensuring galvanic isolation, grid stability, and reliable long-term operation.

High Energy Efficiency
Low Maintenance
Weather Resistant
Long Operational Life
Reliable Performance
Eco-Friendly Design
Product Overview

Built for performance. Designed to last.

Six core engineering decisions that separate Voltek solar transformers from the rest.

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High Efficiency

Optimized magnetic core and winding geometry achieve peak efficiency above 99%.

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Superior Insulation

Class F/H insulation systems engineered for high dielectric strength and thermal endurance.

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Low Power Loss

Cold-rolled grain-oriented steel minimizes no-load and load losses for higher project ROI.

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Compact Design

Footprint-optimized enclosures simplify site layout and reduce civil works in dense arrays.

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Corrosion Resistant

Multi-stage protective coatings withstand humidity, dust, salt mist, and UV exposure.

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Easy Installation

Pre-assembled and factory-tested units arrive ready to commission with minimal site work.

Technical Specifications

Specifications & Standards

Custom ratings available on request. Contact our engineering team for project-specific datasheets.

PARAMETER VALUE
Power Rating 100 kVA – 6.75 MVA
HV Voltage 11 / 22 / 33 kV
LV Voltage 0.30 – 1.05 kV / Custom
Frequency 50 / 60 Hz
Cooling ONAN / ONAF
Winding Material Copper / Aluminium
Vector Group Dy11 / Y11 / Custom
Standards IEC 60076 / IEEE
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Applications

Trusted across the energy value chain

Why Voltek

Engineering excellence, delivered consistently.

From design through commissioning, every Voltek transformer reflects a commitment to precision engineering and operational reliability.

● MANUFACTURING PROCESS

From blueprint to power-up

A seven-stage process refined through decades of precision transformer manufacturing.

STEP 01
Design
📐
STEP 02
Engineering
🔨
STEP 03
Core Manufacturing
STEP 04
Assembly
🔬
STEP 05
Testing
STEP 06
Quality Inspection
📦
STEP 07
Delivery
Frequently Asked Questions
  • A solar transformer is a specialized power transformer designed to step up the voltage generated by solar inverters to grid-compatible levels, enabling efficient long-distance transmission of solar-generated electricity.