3Si Eco Power designs, manufactures, and supplies a range of mineral oil (ONAN) and fluid-filled (KNAN, LNAN) transformers, both step-up and step-down. High-voltage side from 3.3 kV and up to 36 kV. Low-voltage side from 380 V – 433 V. We can design and manufacture other specific voltages and ratings if required.

3Si Eco Power designs, manufactures, and supplies a range of distribution transformers for both Indian and international markets. We primarily design and produce energy-efficient transformers to IS 1180 Part 1 – 2014 and IS 2026. We also design and manufacture to other international standards like IEC 60076, BS, and the European Union Eco Design Directive 548/2014 national standards

3Si Eco Power transformers are based on significant design excellence and process excellence. We manufacture power transformers from 3.15 MVA to 16 MVA with voltages up to 36 kV. Depending on customer specifications, power transformers are offered with either off-circuit tap changers or on-load tap changers. We understand and manufacture transformers to help maintain voltage levels within acceptable limits, which is essential for the stable operation of electrical grids. They also support fault management and system protection.

We pride ourselves on our ability to design and manufacture a wide range of special transformers tailored to meet unique customer requirements. Our offerings include:

3Si Eco Power offers cast resin transformers backed by pioneers in cast resin technology. Our transformers feature both high-voltage (HV) and low-voltage windings.

3Si Eco Power manufactures bespoke compact, package, and mobile substations to suit site-specific conditions. 3Si compact substations come with an array of advantages.