| Titre : | Polyphase induction motors : analysis, design, and application | | Type de document : | texte imprimé | | Auteurs : | Paul Cochran, Auteur | | Editeur : | New York : Marcel Dekker | | Année de publication : | 1989 | | Importance : | 678 p. | | Présentation : | couv. ill. en coul., ill. | | Format : | 24 cm. | | ISBN/ISSN/EAN : | 978-0-8247-8043-2 | | Langues : | Anglais (eng) | | Catégories : | ELECTROTECHNIQUE
| | Index. décimale : | 10-03 Machines éléctriques | | Résumé : | Generously illustrated with over 1600 dispaly equations and more than 145 drawings, diagrams and photographs, this book is a handy, single-source reference suited to readers with a wide span of educational backgrounds and technical experience. Comprehensive in both scope and depth this manual covers all significant aspects of the field, such as Amperes Law and Faraday's Law, emphasing basic explanations of motor behaviour, derives all important equations and relationships required to analyze, design and apply polyphase induction motors, uses worldwide SI units or international MKS system of units as well as practical units used in the US and shows how to apply working equations to real-life situations with numerical examples... and more. | | Note de contenu : | Contents:
INTRODUCTION,
1.1 The Economic Need for Drive Motors
1. 2 The Dominance of Polyphase Induction Motors
1. 3 Distribution of Ratings
1. 4 The Future of Polyphase Induction Motors
2 AMPERE'S LAW AND FARADAY'S LAW,
2.2 Ampere\'s Law
2.3 Faraday\'s Law
3 MOTOR ACTION,
3. 1 The Three Requirements for Motor Action in an Induction Motor
3.2 First Requirement: Rotating Magnetic Field
3.3 Second Requirement: Axial Current Flow in the Rotor Circuit
3.4 Third Requirement: In-Phase Relationship Between Flux Wave and Rotor-Current Wave
3.5 Production of Torque
4 BACKGROUND OF THE EQUIVALENT CIRCUIT,
4.2 One-Phase Representation
4.3 Physical Model of the Phase
4.4 Determination of the Equivalent T Network
4.5 Effect of Core Loss on the Equivalent Circuit
4.6 Effect of Turns Ratio on the Equivalent Circuit
4.7 Use of Actual Units for Equivalent-Circuit Calculations
4.8 Use of Per Unit Quantities for Equivalent-Circuit Calculations
5 ANALYSIS OF THE EQUIVALENT CIRCUIT,
5.2 Formulation of the Equivalent Circuit
5.3 Determination of the Stator and Rotor Phase Currents
5.4 Determination of the Power Output
5.5 Determination of Efficiency and Power Factor at Full Load
5.6 Determination of Efficiency and Power Factor at Part Load
5.7 Derivation of the General Torque Equation
5.8 Maximum Torque
5.9 Starting Torque
5.10 Starting Current
5.11 The Speed- Torque Curve
5.12 The Speed-Current Curve
6 THE SIMPLIFIED EQUIVALENT CIRCUIT,
6.1 Background
6.2 Determination of the Phase Current
6.3 Determination of the Power Output
6.4 Determination of the Torque Output
6.5 Maximum Torque
6.6 Starting Torque
6.7 Numerical Example Using the Simplified Equivalent Circuit
6.8 Comparison of Results of Calculations by Use of the Two Circuits
6.9 Improvement of Simplified Equivalent-Circuit Results by Use of Adjusted Voltage
6.10 Comments on Choice of Equivalent Circuit
7 THE VECTOR DIAGRAM,
7.1 Inference of the Vector Diagram from the Equivalent Circuit
7.2 Construction of the Vector Diagram
7.3 Interpretation of the Vector Diagram
7.4 Analysis of Power Transformation by Use of the Vector Diagram
7. 5 Determining Performance from the Vector Diagram
7.6 Example of Calculating Performance from the Vector Diagram
8 THE CIRCLE DIAGRAM,
8.1 Status of the Circle Diagram
8.2 Locus of the Current in a Series Circuit with Fixed Inductance and for Which the Resistance Is Varied
8.3 Concept of the Conventional Polyphase Induction Motor Circle Diagram
8.4 Determination of the Conventional Diagram from Test Data
8.5 Interpretation of the Conventional Diagram
8.6 Starting Torque from the Conventional Diagram
8.7 Maximum Torque from the Conventional Diagram
8.8 Maximum Power from the Conventional Diagram
8.9 Maximum Power Factor from the Conventional Diagram
8.10 Operating-Point P~rformance from the Conventional Diagram
8.11 Limitations of the Conventional Diagram
8.12 Concept of the Adjusted Circle Diagram
8.13 Numerical Example of Use of the Adjusted Diagram
8.14 Determination of Adjusted-Diagram Construction Data from Test Data
8. 15 Construction of the Adjusted Diagram
8.16 Determination of Maximum Torque and Starting Torque from the Adjusted Diagram
8.17 Determination of Performance at Rated Load from the Adjusted Diagram
8.18 Comparison of Performance at Rated Load as Calculated by the Adjusted Diagram
9 sTAOR WINDINGS,
9.1 Function and Importance of the Stator Winding
9.2 Stator Coils
9.3 Eddy-Current Losses in the Copper Within the Slot
9.4 Additional Winding Losses Due to Circulating Currents in the Strands
9.5 Slot Factor
9.6 Numerical Example of Calculation of Eddy-Current Loss and Strand Loss in a Stator Winding
9.7 Induced Voltage in the Stator Coil
9.8 Coil-Pitch Factor
9.9 Use of the Coil-Pitch Factor in Controlling Harmonics
9.10 Distribution Factor
9.11 Use of the Distribution Factor in Controlling Harmonics
9.12 Voltage Induced in the Stator Phase Winding
9.13 Integral-Slot Windings
9.14 Fractional-Slot Windings
9.15 Generalized Rules for Determining Stator Winding Configurations
9.16 Unbalanced Windings
9.17 Stator Connection Diagrams
9.18 Magnetic Pull or Radial Decentering Force
9.19 Numerical Example of Calculation of Unbalanced Magnetic Pull
9.20 Temporary Operation with Damaged Stator Coils
10 ROTOR WINDINGS,
10.1 Function and Importance of the Rotor Winding
10.2 General Types of Rotor Windings
10.3 Squirrel-Cage Rotor Windings
10.4 Wound-Rotor Windings
11 DIELECTRICS AND INSULATION,
11.1 Function, Scope, and Importance of Insulation
11.2 Relative Aspect of Insulators and Conductors
11.3 Methodology Used in Understanding and in Applying Insulation
11.4 Electrostatic Background of Dielectrics
11.5 Capacitors and Capacitance
11. 6 Physical Behavior of Dielectric Materials
11.7 Factors Affecting Insulation Strength
11.8 Corona
11.9 Capacitance to Ground
11.10 Charging Current and Charging Volt-Amperes for High-Potential Testing
11.11 Numerical Example of Calculation of Phase- Winding Capacitance to Ground, Charging Current, and Charging Volt-Amperes
11.12 Winding Surges
11.13 Temperature Classes of Insulation
11.14 Insulation Resistance Testing
11.15 Creepage, Tracking, and Arc Resistance
11.16 Application of Insulation to Windings
12 MAGNETOMOTIVE FORCES ACTING ACROSS THE AIR GAP,
12.2 Magnetomotive Force Produced by One Stator Coil
12.3 Magnetomotive Force Produced by a Pair of Coil Groups of Opposite Polarity
12.4 Magnetomotive Force Produced by One Phase
12.5 Magnetomotive Force Produced by the Complete Stator Winding
12.6 Example of the Graphical Construction of the Magnetomotive-Force Wave Produced by a Three-Phase Stator Winding
12.7 The Equivalent Circuit with the Space Harmonics Considered
12.8 Magnetizing Current
12.9 Various Types of Harmonics Present in the Air Gap
12.10 Perturbations on the Speed-Torque Curve
12.11 Electromagnetically Induced Noise and Vibration
12.12 Additional Effects of Harmonics
13 REACTANCE,
13.1 Effect of Reactance on Polyphase Induction Motor Size and Performance
13.2 Separation of Total Winding Reactance into Leakage Reactance and Magnetizing Reactance
13.3 Magnetizing Reactance
13.4 Components of Leakage Reactance
13.5 Stator-Slot Leakage Reactance of a Rectangular &lot
13.6 Stator-Slot Leakage Reactance of a Nonrectangular Slot
13.7 Rotor-Slot Leakage Reactance of a Phase-Wound Rotor
13.8 Rotor-Slot Leakage Reactance of a Squirrel-Cage Rotor with Rectangular Slots
13.9 Rotor-Slot Leakage Reactance of a Single-Cage Rotor with Nonrectangular Slots
13.10 Rotor-Slot Leakage Reactance of a Multiple-Cage Rotor
13.11 End-Turn Leakage Reactance
13.12 Differential Leakage Reactance
13.13 Skew Leakage Reactance
13.14 Numerical Example of Running-Reactance Calculation
13.15 Blocked-Rotor Reactance
13.16 Numerical Example of Blocked-Rotor Reactance Calculation
14 THE MAGNETIC CIRCUIT,
14.1 Function and Role of the Magnetic Circuit
14.2 Diamagnetism and Paramagnetism
14.3 Ferromagnetic Materials
14.4 Magnetic Saturation
14.5 Magnetic Hysteresis Loss
14.6 Eddy-Current Loss
14.7 No-Load Core Loss
14.8 Load Loss
14.9 Core Structure
14.10 Effect of Slot and Air-Duct Openings and the Use of Carter\'s Coefficient
14.11 Calculation of the Magnetic Circuit
15 APPLICATION OF INDUCTION MOTORS, LIST OF SYMBOLS.
15.1 The Role of Application
15.2 Installation
15.3 Methods of Power Transmission
15.4 Methods of Starting Squirrel-Cage Induction Motors
15.5 Wound-Rotor Motor Starting
15.6 Methods of Speed Control
15.7 Acceleration
15.8 Braking
15.9 Power Requirement for a Duty-Cycle Application
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Polyphase induction motors : analysis, design, and application [texte imprimé] / Paul Cochran, Auteur . - New York : Marcel Dekker, 1989 . - 678 p. : couv. ill. en coul., ill. ; 24 cm. ISBN : 978-0-8247-8043-2 Langues : Anglais ( eng) | Catégories : | ELECTROTECHNIQUE
| | Index. décimale : | 10-03 Machines éléctriques | | Résumé : | Generously illustrated with over 1600 dispaly equations and more than 145 drawings, diagrams and photographs, this book is a handy, single-source reference suited to readers with a wide span of educational backgrounds and technical experience. Comprehensive in both scope and depth this manual covers all significant aspects of the field, such as Amperes Law and Faraday's Law, emphasing basic explanations of motor behaviour, derives all important equations and relationships required to analyze, design and apply polyphase induction motors, uses worldwide SI units or international MKS system of units as well as practical units used in the US and shows how to apply working equations to real-life situations with numerical examples... and more. | | Note de contenu : | Contents:
INTRODUCTION,
1.1 The Economic Need for Drive Motors
1. 2 The Dominance of Polyphase Induction Motors
1. 3 Distribution of Ratings
1. 4 The Future of Polyphase Induction Motors
2 AMPERE'S LAW AND FARADAY'S LAW,
2.2 Ampere\'s Law
2.3 Faraday\'s Law
3 MOTOR ACTION,
3. 1 The Three Requirements for Motor Action in an Induction Motor
3.2 First Requirement: Rotating Magnetic Field
3.3 Second Requirement: Axial Current Flow in the Rotor Circuit
3.4 Third Requirement: In-Phase Relationship Between Flux Wave and Rotor-Current Wave
3.5 Production of Torque
4 BACKGROUND OF THE EQUIVALENT CIRCUIT,
4.2 One-Phase Representation
4.3 Physical Model of the Phase
4.4 Determination of the Equivalent T Network
4.5 Effect of Core Loss on the Equivalent Circuit
4.6 Effect of Turns Ratio on the Equivalent Circuit
4.7 Use of Actual Units for Equivalent-Circuit Calculations
4.8 Use of Per Unit Quantities for Equivalent-Circuit Calculations
5 ANALYSIS OF THE EQUIVALENT CIRCUIT,
5.2 Formulation of the Equivalent Circuit
5.3 Determination of the Stator and Rotor Phase Currents
5.4 Determination of the Power Output
5.5 Determination of Efficiency and Power Factor at Full Load
5.6 Determination of Efficiency and Power Factor at Part Load
5.7 Derivation of the General Torque Equation
5.8 Maximum Torque
5.9 Starting Torque
5.10 Starting Current
5.11 The Speed- Torque Curve
5.12 The Speed-Current Curve
6 THE SIMPLIFIED EQUIVALENT CIRCUIT,
6.1 Background
6.2 Determination of the Phase Current
6.3 Determination of the Power Output
6.4 Determination of the Torque Output
6.5 Maximum Torque
6.6 Starting Torque
6.7 Numerical Example Using the Simplified Equivalent Circuit
6.8 Comparison of Results of Calculations by Use of the Two Circuits
6.9 Improvement of Simplified Equivalent-Circuit Results by Use of Adjusted Voltage
6.10 Comments on Choice of Equivalent Circuit
7 THE VECTOR DIAGRAM,
7.1 Inference of the Vector Diagram from the Equivalent Circuit
7.2 Construction of the Vector Diagram
7.3 Interpretation of the Vector Diagram
7.4 Analysis of Power Transformation by Use of the Vector Diagram
7. 5 Determining Performance from the Vector Diagram
7.6 Example of Calculating Performance from the Vector Diagram
8 THE CIRCLE DIAGRAM,
8.1 Status of the Circle Diagram
8.2 Locus of the Current in a Series Circuit with Fixed Inductance and for Which the Resistance Is Varied
8.3 Concept of the Conventional Polyphase Induction Motor Circle Diagram
8.4 Determination of the Conventional Diagram from Test Data
8.5 Interpretation of the Conventional Diagram
8.6 Starting Torque from the Conventional Diagram
8.7 Maximum Torque from the Conventional Diagram
8.8 Maximum Power from the Conventional Diagram
8.9 Maximum Power Factor from the Conventional Diagram
8.10 Operating-Point P~rformance from the Conventional Diagram
8.11 Limitations of the Conventional Diagram
8.12 Concept of the Adjusted Circle Diagram
8.13 Numerical Example of Use of the Adjusted Diagram
8.14 Determination of Adjusted-Diagram Construction Data from Test Data
8. 15 Construction of the Adjusted Diagram
8.16 Determination of Maximum Torque and Starting Torque from the Adjusted Diagram
8.17 Determination of Performance at Rated Load from the Adjusted Diagram
8.18 Comparison of Performance at Rated Load as Calculated by the Adjusted Diagram
9 sTAOR WINDINGS,
9.1 Function and Importance of the Stator Winding
9.2 Stator Coils
9.3 Eddy-Current Losses in the Copper Within the Slot
9.4 Additional Winding Losses Due to Circulating Currents in the Strands
9.5 Slot Factor
9.6 Numerical Example of Calculation of Eddy-Current Loss and Strand Loss in a Stator Winding
9.7 Induced Voltage in the Stator Coil
9.8 Coil-Pitch Factor
9.9 Use of the Coil-Pitch Factor in Controlling Harmonics
9.10 Distribution Factor
9.11 Use of the Distribution Factor in Controlling Harmonics
9.12 Voltage Induced in the Stator Phase Winding
9.13 Integral-Slot Windings
9.14 Fractional-Slot Windings
9.15 Generalized Rules for Determining Stator Winding Configurations
9.16 Unbalanced Windings
9.17 Stator Connection Diagrams
9.18 Magnetic Pull or Radial Decentering Force
9.19 Numerical Example of Calculation of Unbalanced Magnetic Pull
9.20 Temporary Operation with Damaged Stator Coils
10 ROTOR WINDINGS,
10.1 Function and Importance of the Rotor Winding
10.2 General Types of Rotor Windings
10.3 Squirrel-Cage Rotor Windings
10.4 Wound-Rotor Windings
11 DIELECTRICS AND INSULATION,
11.1 Function, Scope, and Importance of Insulation
11.2 Relative Aspect of Insulators and Conductors
11.3 Methodology Used in Understanding and in Applying Insulation
11.4 Electrostatic Background of Dielectrics
11.5 Capacitors and Capacitance
11. 6 Physical Behavior of Dielectric Materials
11.7 Factors Affecting Insulation Strength
11.8 Corona
11.9 Capacitance to Ground
11.10 Charging Current and Charging Volt-Amperes for High-Potential Testing
11.11 Numerical Example of Calculation of Phase- Winding Capacitance to Ground, Charging Current, and Charging Volt-Amperes
11.12 Winding Surges
11.13 Temperature Classes of Insulation
11.14 Insulation Resistance Testing
11.15 Creepage, Tracking, and Arc Resistance
11.16 Application of Insulation to Windings
12 MAGNETOMOTIVE FORCES ACTING ACROSS THE AIR GAP,
12.2 Magnetomotive Force Produced by One Stator Coil
12.3 Magnetomotive Force Produced by a Pair of Coil Groups of Opposite Polarity
12.4 Magnetomotive Force Produced by One Phase
12.5 Magnetomotive Force Produced by the Complete Stator Winding
12.6 Example of the Graphical Construction of the Magnetomotive-Force Wave Produced by a Three-Phase Stator Winding
12.7 The Equivalent Circuit with the Space Harmonics Considered
12.8 Magnetizing Current
12.9 Various Types of Harmonics Present in the Air Gap
12.10 Perturbations on the Speed-Torque Curve
12.11 Electromagnetically Induced Noise and Vibration
12.12 Additional Effects of Harmonics
13 REACTANCE,
13.1 Effect of Reactance on Polyphase Induction Motor Size and Performance
13.2 Separation of Total Winding Reactance into Leakage Reactance and Magnetizing Reactance
13.3 Magnetizing Reactance
13.4 Components of Leakage Reactance
13.5 Stator-Slot Leakage Reactance of a Rectangular &lot
13.6 Stator-Slot Leakage Reactance of a Nonrectangular Slot
13.7 Rotor-Slot Leakage Reactance of a Phase-Wound Rotor
13.8 Rotor-Slot Leakage Reactance of a Squirrel-Cage Rotor with Rectangular Slots
13.9 Rotor-Slot Leakage Reactance of a Single-Cage Rotor with Nonrectangular Slots
13.10 Rotor-Slot Leakage Reactance of a Multiple-Cage Rotor
13.11 End-Turn Leakage Reactance
13.12 Differential Leakage Reactance
13.13 Skew Leakage Reactance
13.14 Numerical Example of Running-Reactance Calculation
13.15 Blocked-Rotor Reactance
13.16 Numerical Example of Blocked-Rotor Reactance Calculation
14 THE MAGNETIC CIRCUIT,
14.1 Function and Role of the Magnetic Circuit
14.2 Diamagnetism and Paramagnetism
14.3 Ferromagnetic Materials
14.4 Magnetic Saturation
14.5 Magnetic Hysteresis Loss
14.6 Eddy-Current Loss
14.7 No-Load Core Loss
14.8 Load Loss
14.9 Core Structure
14.10 Effect of Slot and Air-Duct Openings and the Use of Carter\'s Coefficient
14.11 Calculation of the Magnetic Circuit
15 APPLICATION OF INDUCTION MOTORS, LIST OF SYMBOLS.
15.1 The Role of Application
15.2 Installation
15.3 Methods of Power Transmission
15.4 Methods of Starting Squirrel-Cage Induction Motors
15.5 Wound-Rotor Motor Starting
15.6 Methods of Speed Control
15.7 Acceleration
15.8 Braking
15.9 Power Requirement for a Duty-Cycle Application
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