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Electromechanisms / Devices (Electromechanical Technology Series)

Electromechanisms/Devices attempts to present such devices as motors, generators, relays, solenoids and other selected topics in a simple and direct manner. The materials are presented in an action-oriented format combining many of the features normally found in a textbook with those usually associated with a laboratory manual. An Instructor's Data Guide is available. SOURCES OF INFORMATION 1 MAGNETIC FIELDS 4 ANGULAR VELOCITY MEASUREMENTS 13 MOTOR NO-LOAD TEST 22 MOTOR LOAD TEST 32 TRANSFORMER LOSSES 43 ENERGY STORAGE 56 ENERGY STORAGE IN RELAY SPRINGS 64 ENERGY STORAGE IN A GENERATOR 72 RELAY TIME CONSTANTS 80 MOTOR TIME CONSTANTS 91 THERMAL TIME CONSTANT OF A TRANSFORMER 104 DC VS. AC OPERATION OF A SERIES MOTOR 114 AC VS. DC RELAY OPERATION 126 RESONANCE VIBRATORS 138 Laboratory Report Writing Experiment Data Sheets This manual, along with the others in the Electromechanical Technology Series, is the result of six years of research and development by TERC, a national nonprofit, public service corporation with headquarters in Cambridge, Massachusetts. It has undergone a number of revisions as a direct result of experience gained with students in technical schools and community c

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