In India, regulations prohibit the direct production of single-phase power from single-phase high-voltage or ultra high-voltage sources for railway AC power feeding systems. To address this requirement, special transformers known as Scott-connection transformers are employed. These transformers efficiently convert three-phase high-voltage or ultra high-voltage power into two sets of stable single-phase power, ensuring minimal voltage fluctuations and balanced outputs at the receiving end.

Key features and advantages of Scott-connection transformers include:

1. Specialized Transformer Configuration: Designed specifically to create two separate single-phase outputs from three-phase inputs, maintaining stable power supply characteristics essential for railway operations.
2. Noise Reduction: Utilizes a housing-free design with soundproof walls to reduce noise emissions, making them suitable for urban and residential environments.
3. Compact Design: Incorporates advanced electric field strength analysis technology to achieve a compact footprint without compromising performance, ideal for installations with space constraints.
4. Full Insulation Design: Features a fully insulated design that eliminates the need for additional surge arresters, simplifying installation and enhancing reliability.
5. Efficiency and Energy Savings: Offers lower energy losses and greater efficiency compared to conventional modified Woodbridge connection transformers, contributing to reduced operational costs and environmental impact.

By leveraging Scott-connection transformers, India's railway electrification infrastructure meets regulatory standards while optimizing performance, reliability, and sustainability. These transformers play a critical role in ensuring seamless power supply for trains, signalling systems, and other essential railway infrastructure.