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ISBN 10: 8122422829
ISBN 13: 9788122429527
Author: Hugh Hood, K G Upadhyay
Preface The development in technology has contributed in advancement of electrical machines design, over the past few decades. The development of digital computer has also provided the additional advantages for achieving economical and optimum design of different machines. The main purpose of any textbook is to provide single source coverage of the full spectrum of conventional and computer aided design of electrical machines. This book is an outcome of the author’s experience of teaching electrical machines and electrical machine design courses at the College of Technology, G.B. Pant University, Pantnagar, and at MMM Engineering College, Gorakhpur, U.P., India. Experiences shared at Nanyang Technical University, Singapore, a multinational company, Bangkok, Asian Institute of Technology, Bangkok and Alemaya University, Ethiopia, Africa has also been helpful in bringing out this book. It is designed for undergraduate students of electrical engineering in accordance with the syllabi of Indian universities/institutions. It will be specially helpful for U.P. Technical University students. It is also helpful for AMIE students.
Principles of Design
Types of Electrical Machines
Limitations in Design
Outline of the Text
Effect of Fringing of Flux
Types of Damper Windings
Slot Leakage Flux
End Winding or Overhang Leakage Flux
Slot Leakage Reactance for Parallel Sided Slots with Single Layer Winding
Slot Leakage Reactance for Tapered Slot
Calculation of Pole Leakage Flux
Different Types of Stator and Rotor Slots
Unsolved Questions
Diamagnetic Materials
Materials for Solid Core
Sheet Steels
Good Conducting Materials
Materials Used for Solders
Carbon Materials
Superconducting Materials
Insulating Materials
Gases as Insulating Materials
Liquid Insulating Materials
Solid Insulating Materials
Different Insulating Materials Available
Insulating Materials Used in Electrical Machines
Protection of Insulation from Moisture
Questions With Short Answers
Unsolved Questions
Heat Dissipation by Radiation
Heat Dissipation by Conduction
Heat Dissipation by Convection
Volume of Air
Machine Under Heating
Machine Under Cooling
Drip, Splash and Hose Proof Type Machines
Totally Enclosed, Special Enclosure Type Machines
Induced and Force Ventilation
Radial Ventilating System
Radial and Axial Ventilation in One Machine
Cooling of Totally Enclosed Machines
Cooling of Turbo-alternators
Direct Cooling of Turbo-alternator
Standard Ratings of Electrical Machines
Different Rating (Duty) of Machine
Selection of Motor Capacity for Different Ratings
Embedded Temperature Detector Method
Solved Problems
Questions With Short Answers
Unsolved Problems
Construction of Alternator
Stator Construction
Rotor Construction
E.M.F. Equation of an Alternator
Distribution Factor
Pitch Factor
Flux Density Distribution Curve: Salient Pole Machine
Specific Electric Loading
Magnetic Loading
Output Equation and Derivation
Salient Pole Alternator (Water Wheel Generator)
Estimation of D and L of Salient Pole Alternator
Runaway Speed
Effective Length of Alternator
Selection of Stator Slots
Estimation of Turns Per Phase and Conductors
Design of Teeth and Slots
Estimation of Size of Teeth and Slots
Sectional Area of Stator Conductor and Slot Insulation
Stator Yoke Design
Stator Copper and Iron Losses
Design of Damper Windings
Rotor Design of Salient Pole Synchronous Alternator
Pole Profile Drawing
Height of Pole Yoke and Pole Core
MMF for Air Gap
Pole Leakage Flux
Slot and Tooth Top Leakage Reactance
Determination of Full Load Field MMF
Design of Field Winding
Field Losses, Total Loss, Efficiency and Regulation
Temperature Rise of Field Coils and Stator
Rotor Design for Turbo-Alternator
Solved and Unsolved Problems on Alternator
Construction of Induction Motor
Rotor, Shafts, and Bearings
Output Equation
Estimation of Main Dimensions and Effective Length
Turns Per Phase and Conductors
Cross-Sectional Area of Conductor
Stator Slot and Tooth Design
Outer Diameter and Loss Calculations
Rotor Design, Slots, and Copper Loss
Efficiency and Magnetizing Current
Leakage Reactance and Resistance
Circle Diagram from Design Data
Stator Temperature Rise
Solved Problems on Three-Phase Induction Motors
Field System of DC Machines
Armature and Brushes
Armature Reaction and Winding Types
Output Equation and Main Dimensions
Air Gap Length Calculation
Armature Winding and Commutator Segments
Slot Dimensions and Current Density
Pole and Yoke Design
MMF of Magnetic Circuit
Design of Shunt Field Winding, Commutator, and Interpoles
Losses and Efficiency of DC Machines
Types and Core Construction of Transformers
Distribution Transformers
Core, Yoke, and Tank Accessories
Output Equation for Various Transformer Types
Window Space Factor, Current Density, and Flux Density
EMF Per Turn
Transformer Dimensions and Design Steps
No Load Current, Windings, Resistance, and Leakage Reactance
Regulation, Losses, Efficiency, and Tank Design
Solved and Unsolved Problems on Transformers
Computer-Aided Design of Electrical Machines
Synthesis and Hybrid Methods of Design
Standardisation of Design
CAD of Alternator, Induction Motor, DC Machines, and Transformers
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Tags: Hugh Hood, K G Upadhyay, electrical, machines
