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Electrical Calculations and Guidelines for Generating Station and Industrial Plants
Electrical Calculations and Guidelines for Generating Station and Industrial Plants Author:Thomas E. Baker Using an unusual approach, Electrical Calculations and Guidelines for Generating Station and Industrial Plants simplifies the theory and calculations electrical engineers typically need to understand in order to support operations, maintenance, and betterment projects at generating stations and industrial facilities. Organized into seven major s... more »ections, the book begins with a cursory review or refresher of basic electrical theory. It then provides additional insights into electrical theory that is typically not presented and sets the conventions that will be used throughout the book. Building on this foundation, the book discusses the conversions, data gathering, and calculation procedures for voltage studies, power transfer, and short circuit analysis. In the interest of simplicity, when a calculation does not involve transformation, a 3-phase version of Ohm?s Law is applied to simplify the procedure. When transformers are involved in the calculation (short circuit studies), the per-unit system is utilized. The author covers switchgear overcurrent coordination, high impedance ground detection schemes, transformer protection, and residual voltage bus transfer circuits. He provides detailed background information on the time coordination of overcurrent relays and on the benefits and electrical phenomenon associated with the application of high impedance (resistance) ground detection schemes. He also explains the gathering of data needed to set the various protection functions, the calculation procedures for actually setting the elements, and the math associated with various types of impedance elements. The book then elucidates the need for the various protection functions and typical generator and turbine withstands for the associated abnormal operating conditions. It then covers practical apparatus calculations and calculation procedures for various aspects of buses, cable, circuit breakers, current transformers, generators, meters, motors, and transformers. The final two sections present suggested electrical operating and maintenance guidelines for generating station and industrial facilities. In reality, guidelines are moving targets that require periodic revision to reflect site specific experience and conditions, industry experience, manufacturers? recommendations, and the ever changing regulatory requirements.« less