Dry Type (VPI) Transformers
By Kotsons
Engineered for safety, built to last — reliable dry type power with zero compromise.
Kotsons Dry Type VPI (Vacuum Pressure Impregnated) Transformers are designed for high reliability, safety, and efficiency in indoor power distribution. Using high-grade insulation and vacuum pressure impregnation technology, these transformers offer excellent thermal performance, low partial discharge, and strong resistance to moisture and contaminants—making them ideal for commercial, industrial, and institutional applications. Their robust, maintenance-free construction ensures long service life even in demanding environments.
What Are Dry Type (VPI) Transformers?
Dry Type VPI (Vacuum Pressure Impregnated) Transformers are a type of electrical transformer that use air for cooling and insulation, instead of liquid or oil. In these transformers, the windings are vacuum-impregnated with high-temperature-resistant varnish under pressure, creating a strong, uniform insulation layer. This process enhances thermal performance, reduces partial discharge, and increases resistance to moisture, dust, and other environmental contaminants.
They are safe, non-flammable, and ideal for indoor use in commercial, industrial, and sensitive installations like hospitals, data centers, and high-rise buildings.
Applications of Kotsons Dry Type (VPI) Transformers
Kotsons Dry Type VPI Transformers are suitable for a wide range of indoor and environmentally sensitive applications where safety, reliability, and low maintenance are essential. Key application areas include:
Commercial Complexes – Malls, office buildings, hotels, and hospitals where fire safety and quiet operation are priorities.
Industrial Facilities – Manufacturing plants, refineries, and process industries requiring reliable, robust power distribution.
Data Centers & IT Parks – Environments demanding continuous, stable power and minimal risk of electrical faults.
Educational & Institutional Campuses – Schools, universities, and research labs that require safe, low-maintenance energy solutions.
High-Rise Buildings – Where space-saving, fire-resistant transformers are crucial for vertical infrastructure.
Renewable Energy Systems – Used in solar and wind projects to safely manage power without oil-based cooling systems.
Public Infrastructure – Airports, metro stations, and smart city projects needing clean, reliable, and fire-safe transformers.
These transformers are particularly valuable where oil-based units are unsuitable due to safety, environmental, or maintenance concerns.
Why Choose Kotsons
Why Choose Kotsons Dry Type (VPI) Transformers
Enhanced Safety
Superior Moisture Resistance
Low Maintenance
Quiet Operation
Custom-Engineered Solutions
Proven Durability
With no oil or flammable fluids, they offer superior fire resistance, ideal for indoor and public installations. This reduces risk in critical spaces like hospitals and commercial buildings.
VPI technology provides excellent protection against moisture, dust, and corrosive elements—ensuring reliable operation even in humid or polluted environments.
Their robust, sealed insulation system eliminates the need for frequent servicing, reducing downtime and operational costs.
These transformers operate with minimal vibration and sound, making them suitable for noise-sensitive environments like offices and institutions.
Kotsons offers design flexibility to meet specific voltage, size, and performance needs, ensuring a perfect fit for every application.
Backed by Kotsons’ decades of experience and stringent quality standards, these transformers deliver long service life and consistent performance.