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is a comprehensive guide widely used by engineering students and professionals for understanding the design, operation, and maintenance of modern power substations.

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| Edition/Reprint | Year | ISBN | Key Details | | :-------------- | :--- | :------------ | :-------------------------------------------------------------------------- | | 3rd Edition | 1995, 1997 | - | Early edition, establishing the book as a key reference | | 10th Edition | 2013 | 8174091394 | 568 pages, widely held in library catalogs | | 13th Edition | 2023 | 9788174091390 | The most recent known edition, indicating the book remains current |

S. Rao’s text is highly valued because it treats a substation as a dynamic ecosystem rather than an isolated set of machines. It addresses critical industry challenges:

Project planning, commissioning procedures, fire-fighting systems, and maintenance protocols for electrical equipment. Publication Details Author: Prof. Sunil S. Rao. Publisher: Khanna Publishers.

: Detailed comparisons of single, double, and breaker-and-a-half schemes.

Design principles of Current Transformers (CTs) and Potential Transformers (PTs) used for metering and protection.

Detailed look at transmission, distribution, indoor, outdoor, and Gas Insulated Substations (GIS).

Detailed analysis of 220kV, 400kV, and higher voltage practices.

While there isn't a single "story" in the traditional sense, Electrical Substation Engineering and Practice

Busbar systems and layouts, design of busbars, substation structures, and earthing systems. Specialized Technologies: