Electric Motors and Drives: Fundamentals, Types and ApplicationsElectric Motors and Drives is intended for nonspecialist users of electric motors and drives, filling the gap between theorybased 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 widelyused 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.

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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 
CHAPTER 8 INVERTERFED INDUCTION MOTOR DRIVES  279 
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Electric Motors and Drives: Fundamentals, Types and Applications Austin Hughes No preview available  2006 
Common terms and phrases
acceleration airgap angle applied applied voltage armature base Chapter circuit coils conductor connected constant continuous converter curve d.c. motor depends designed devices direction discussed drive effect electrical energy equal equation equivalent circuit error example fact force frequency gain given hence higher ideal important increase induction motor input inverter less limit load load torque look machine magnetic magnetising mains maximum means mechanical noload obtain operation output output voltage phase pole position possible produced proportional range rated reduced reference region reluctance remains represents resistance result rev/min reverse rise rotating rotor running secondary shown in Figure signal simple slip speed starting stator steadystate step supply switching synchronous thyristor torque torque–speed transformer turns typically usually vary voltage wave waveform Weld winding Wrst Xux density zero
Popular passages
Page 3  H _ £V1_ = ,£W I 0.4 10. FORCE ON A CURRENTCARRYING CONDUCTOR LYING IN A MAGNETIC FIELD It has been found that whenever a currentcarrying 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 6  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.