Electrical Power Systems

Contents
Preface vii
1. Structure of Power Systems and ew Other Aspects 1
1.1 Power Systems 1
1.2 Reasons for Interconnection 3
1.3 Load Characteristics 3
1.4 Power actor of Various Equipments 4
1.5 Basic Definitions of Commonly Used Terms 4
1.6 Relationship between Load actor (L) And Loss actor (LL) 11
1.7 Load Growth 13
1.8 Multiphase Systems 13
1.9 Disadvantages of Low Power actor 15
1.10 Various Causes of Low Power actor 15
2. Resistance and Inductance of Transmission Lines 18
2.1 Introduction 18
2.2 Line Resistance 18
2.3 Inductance—Basic Concepts 19
2.4 Inductance of a Single Conductor 20
2.5 Inductance Due to External lux Linkage 22
2.6 Inductance of a Single Phase Two Wire Line 22
2.7 Self and Mutual Inductances 24
2.8 Type of Conductors 25
2.9 Inductance of Composite Conductors 26
2.10 Inductance of Three Phase Transmission Lines with Symmetrical Spacing 27
2.11 Transpose Transmission Line 29
2.12 Inductance of Three Phase Double Circuit Lines 30
2.13 Bundled Conductors 32
3. Capacitance of Transmission Lines 53
3.1 Introduction 53
3.2 Electric ield and Potential Difference 53
3.2 Potential Difference in an Array of Solid Cylindrical Conductors 54
3.3 Capacitance of a Single Phase Line 55
3.4 Capacitance of Three Phase Transmission Lines 56
3.5 Bundled Conductors 58
3.6 Capacitance of Three Phase Double Circuit Lines 59
3.7 Effect of Earth on the Capacitance 61
3.8 Capacitance of a Single Phase Line Considering the Effect of Earth 61
4. Synchronous Machine: Steady State and Transient Operations 79
4.1 Introduction 79
4.2 Synchronous Generator 79
4.3 Model of Generator 80