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Welcome to eGyanKosh’s comprehensive resource on Unit-16: Sub-station, Transformer, Distribution System, and Power Factor. This study material is crafted specifically for IGNOU students preparing for their 2025 examinations. Here, you will find an extensive collection of free downloadable materials designed to enhance your understanding of key concepts in electrical engineering, including the operation and management of substations, transformers, distribution systems, and the importance of power factor. Our aim is to provide you with the tools and knowledge necessary to succeed in your studies and excel in your academic pursuits. Dive in and explore the wealth of information we have prepared to support your learning journey!