Electrical Engineering - Losses, Efficiency, and Rating of Direct-Current Machines

Electrical Engineering is a free introductory textbook to the basics of electrical engineering. See the editorial for more information....

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Editorial Download and Release History Copyright Preface Introduction Magnetic Fields and Electromotive Force Commercial Forms of EMF, Power and Energy The Electric Circuit Electromotive Forces in Conductors in Series Circuits With Resistance, Inductance, and Capacitance Electrical Conductors Electromagnets Electrical Transients Polyphase Circuits The Direct-Current Machine The D-C Machine as a Motor Losses, Efficiency, and Rating of Direct-Current Machines Types of Losses Loss in Shunt-Field Circuit of D-C Generator Loss in the Armature Circuit Losses by Windage and Friction Stray Load Loss Armature-Iron Loss Efficiency No-Load Losses from 'Running Light' Test Efficiency of D-C Motors Ratings and Standards Permissible Temperatures for Insulation Rating of Enclosed Motors Explosion-Resisting Motors Full-Load Currents Problems Mechanical Connection Between Motor and Load Conversion of D-C Generator to D-C Motor Control of Direct-Current Motors Electrical Instruments and Meters Transformers The Polyphase Induction Motor The Polyphase Synchronous Motor Alternating-Current Generators The Single-Phase Motor Electric Batteries Economics of Use of Electrical Apparatus Electric Power Rates Power-Factor Correction Illumination Electronic Devices Electronic Applications Special Motors and Generators Appendix

Last Update: 2011-03-20