## Electric Motors and Drives: Fundamentals, Types and Applications (Google eBook) is intended for non-specialist users of electric motors and drives, filling the gap between theory-based academic textbooks and the more prosaic 'handbooks', which provide useful detail but little opportunity for the development of real insight and understanding. The book explores all of the widely-used modern types of motor and drive, including conventional and brushless D.C., induction motors and servo drives, providing readers with the knowledge to select the right technology for a given job. Austin Hughes' approach, using a minimum of maths, has established Electric Motors and Drives as a leading guide for engineers, and the key to a complex subject for a wider readership, including technicians, managers and students.Electric Motors and Drives* Acquire essential practical knowledge of motors and drives, with a minimum of math and theory * Updated material on the latest and most widely-used modern motors and drives * New edition includes additional diagrams and worked examples throughout |

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#### LibraryThing Review

User Review - John_Hardy - LibraryThingThis book is brilliant. It isn't stylish, it's not lavishly illustrated, it isn't even a riveting read. It is, however, plain old fashioned lucid. Hughes is or was an academic, and if he lectured as ... Read full review

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it sucks

### Contents

1 | |

Chapter 2 POWER ELECTRONIC CONVERTERS FOR MOTOR DRIVES | 45 |

Chapter 3 CONVENTIONAL DC MOTORS | 82 |

Chapter 4 DC MOTOR DRIVES | 133 |

Chapter 5 INDUCTION MOTORS ROTATING FIELD SLIP AND TORQUE | 167 |

Chapter 6 OPERATING CHARACTERISTICS OF INDUCTION MOTORS | 198 |

Chapter 7 INDUCTION MOTOR EQUIVALENT CIRCUIT | 236 |

### Common terms and phrases

3-phase acceleration ampliWer applied voltage armature current armature voltage back e.m.f. base speed cage Chapter closed-loop coils commutator conductor constant converter copper loss current waveforms cycloconverter d.c. drive d.c. machine d.c. motor diagram diode diVerent electrical energy equation equivalent circuit eVect eYciency feedback full-load heatsink hence ideal transformer impedance increase induction motor inertia inverter inverter-fed inXuence load torque loop magnetic circuit magnetic Weld magnetic Xux magnetising current mains maximum mechanical output power MOSFET motional e.m.f. motor drive motor torque no-load operation output voltage phase phasor position produced proportional pulses reactance rectiWer reduced regenerative braking reluctance resistor rev/min reXected rotating rotor current rotor resistance shaft shown in Figure sinusoidal slip speciWc speed control stator stator windings steady-state stepping motor stepping rate suYcient switching synchronous speed thyristor torque–speed curve transistor typically volt-drop waveform Wring angle Wrst Xux density Xux wave zero

### Popular passages

Page 2 - H _ £V1_ = ,£W I 0.4 10. FORCE ON A CURRENT-CARRYING CONDUCTOR LYING IN A MAGNETIC FIELD It has been found that whenever a current-carrying conductor is placed in a magnetic field, it experiences a force which acts in a direction perpendicular both to the direction of the current and the field. — Fig. 12 (a) shows the field set up by the poles. — Fig. 12 (b) shows the conductor field due to flow of current in the conductor.

Page 5 - This is a delightfully simple formula, and it may come as a surprise to some readers that there are no constants of proportionality involved in equation 1 .2.