J.C. Das is currently Principal/Consultant with Power System Studies, Inc. Snellville, USA. He headed the Electrical Power Systems Analysis Department at AMEC Inc., (now AMEC Foster Wheeler, Inc.) Tucker, GA, USA, for the last 28 years. Currently he is an independent consultant there. He has varied experience in the utility industry, industrial establishments, hydroelectric generation and atomic energy He is responsible for power system studies, including short-circuit, load flow, harmonics, stability, arc-flash hazard, grounding, switching transients, EMTP simulations and protective relaying. He conducts courses for continuing education in power systems and has authored or coauthored about 65 technical publications, nationally and internationally

"This is an excellent and comprehensive handbook regarding four important topics in electrical power engineering: short-circuits in AC and DC power systems (according to ANSI, IEEE and IEC Standards), load flow and optimal power flow, the problem of harmonics (sources, effects propagation and control) and, finally, protective relaying (from basics to recent technological developments –the microprocessor-based multifunction relays. The aim of this four volumes series is to provide a practical approach to a large scale of problems that an application engineer or consultant may be faced in performing system studies. They offer a solid theoretical and practical basis to understand the whole actual computer aided power system analysis, from data and software tools, to results interpretation. Each part proposes a lot of problem to the reader, with the solutions provided in Appendix.According with our field of interest, the 2nd volume is very interesting. The major aspects of the load flow and of the optimal power flow are presented, in conjunction with deregulated environment and free energy market, security assessments, load estimation and forecasting, uncertainty, HVDC transmission lines, FACTS devices, specific aspect for distribution networks. For solving the OPF, the classical nonlinear optimization approach is followed by the use of the modern heuristic and evolutionary programming based optimization techniques. Many case studies and practical examples are included."—Stefan Kilyeni, Constantin Barbulescu, Politehnica University Timisoara, Romania

• Volume 1 1. Design and Analyses Concepts of Power Systems 2. Modern Electrical Power Systems 3. Wind and Solar Power Generation and Interconnections with Utility 4. Short-Circuit Currents and Symmetrical Components 5. Unsymmetrical Fault Calculations 6. Matrix Methods for Network Solutions 7. Current Interruptions in AC Networks 8. Application and Ratings of Circuit Breakers and Fuses according to ANSI Standards 9. Short Circuit of Synchronous and Induction Machines and Converters 10. Short-Circuit Calculations according to ANSI Standards 11. Short-Circuit Calculations according to IEC Standards 12. Calculations of Short-Circuit Currents in Direct Current Systems Volume 2 1. Load Flow—Fundamental Concepts 2. Automatic Generation and Frequency Control—AGC and AFC 3. Load Flow over AC Transmission Lines 4. HVDC Transmission Load Flow 5. Load Flow Methods: Part I 6. Load Flow Methods: Part II 7. AC Motor Starting Studies 8. Reactive Power Flow and Voltage Control 9. FACTS—Flexible AC Transmission Systems 10. Three-Phase and Distribution System Load Flow 11. Optimization Techniques 12. Optimal Power Flow 13. Heuristic Optimization Techniques Volume 3 1. Harmonics Generation 2. Interharmonics and Flicker 3. Estimation of Harmonics 4. Harmonic Resonance, Secondary Resonance, and Composite Resonance 5. Harmonic Distortion Limits 6. Effects of Harmonics 7. Harmonic Penetrations (Propagation) 8. Harmonic Mitigation and Filters 9. Harmonic Analysis in Solar and Wind Generation Volume 4 1. Modern Protective Relaying: An Overview 2. Protective Relays 3. Instrument Transformers 4. Microprocessor-Based Multifunction Relays 5. Current Interruption Devices and Battery Systems 6. Overcurrent Protection: Ideal and Practical 7. System Grounding 8. Ground Fault Protection 9. Bus-Bar Protection and Autotransfer of Loads 10. Motor Protection 11. Generator Protection 12. Transformer Reactor and Shunt Capacitor Bank Protection 13. Protection of Lines 14. Pilot Protection 15. Power System Stability 16. Substation Automation and Communication Protocols Including IEC 61850 17. Protective Relaying for Arc-Flash Reduction

J.C. Das is currently Principal/Consultant with Power System Studies, Inc. Snellville, USA. He headed the Electrical Power Systems Analysis Department at AMEC Inc., (now AMEC Foster Wheeler, Inc.) Tucker, GA, USA, for the last 28 years. Currently he is an independent consultant there. He has varied experience in the utility industry, industrial establishments, hydroelectric generation and atomic energy He is responsible for power system studies, including short-circuit, load flow, harmonics, stability, arc-flash hazard, grounding, switching transients, EMTP simulations and protective relaying. He conducts courses for continuing education in power systems and has authored or coauthored about 65 technical publications, nationally and internationally

"This is an excellent and comprehensive handbook regarding four important topics in electrical power engineering: short-circuits in AC and DC power systems (according to ANSI, IEEE and IEC Standards), load flow and optimal power flow, the problem of harmonics (sources, effects propagation and control) and, finally, protective relaying (from basics to recent technological developments –the microprocessor-based multifunction relays. The aim of this four volumes series is to provide a practical approach to a large scale of problems that an application engineer or consultant may be faced in performing system studies. They offer a solid theoretical and practical basis to understand the whole actual computer aided power system analysis, from data and software tools, to results interpretation. Each part proposes a lot of problem to the reader, with the solutions provided in Appendix.According with our field of interest, the 2nd volume is very interesting. The major aspects of the load flow and of the optimal power flow are presented, in conjunction with deregulated environment and free energy market, security assessments, load estimation and forecasting, uncertainty, HVDC transmission lines, FACTS devices, specific aspect for distribution networks. For solving the OPF, the classical nonlinear optimization approach is followed by the use of the modern heuristic and evolutionary programming based optimization techniques. Many case studies and practical examples are included."—Stefan Kilyeni, Constantin Barbulescu, Politehnica University Timisoara, Romania

• Volume 1 1. Design and Analyses Concepts of Power Systems 2. Modern Electrical Power Systems 3. Wind and Solar Power Generation and Interconnections with Utility 4. Short-Circuit Currents and Symmetrical Components 5. Unsymmetrical Fault Calculations 6. Matrix Methods for Network Solutions 7. Current Interruptions in AC Networks 8. Application and Ratings of Circuit Breakers and Fuses according to ANSI Standards 9. Short Circuit of Synchronous and Induction Machines and Converters 10. Short-Circuit Calculations according to ANSI Standards 11. Short-Circuit Calculations according to IEC Standards 12. Calculations of Short-Circuit Currents in Direct Current Systems Volume 2 1. Load Flow—Fundamental Concepts 2. Automatic Generation and Frequency Control—AGC and AFC 3. Load Flow over AC Transmission Lines 4. HVDC Transmission Load Flow 5. Load Flow Methods: Part I 6. Load Flow Methods: Part II 7. AC Motor Starting Studies 8. Reactive Power Flow and Voltage Control 9. FACTS—Flexible AC Transmission Systems 10. Three-Phase and Distribution System Load Flow 11. Optimization Techniques 12. Optimal Power Flow 13. Heuristic Optimization Techniques Volume 3 1. Harmonics Generation 2. Interharmonics and Flicker 3. Estimation of Harmonics 4. Harmonic Resonance, Secondary Resonance, and Composite Resonance 5. Harmonic Distortion Limits 6. Effects of Harmonics 7. Harmonic Penetrations (Propagation) 8. Harmonic Mitigation and Filters 9. Harmonic Analysis in Solar and Wind Generation Volume 4 1. Modern Protective Relaying: An Overview 2. Protective Relays 3. Instrument Transformers 4. Microprocessor-Based Multifunction Relays 5. Current Interruption Devices and Battery Systems 6. Overcurrent Protection: Ideal and Practical 7. System Grounding 8. Ground Fault Protection 9. Bus-Bar Protection and Autotransfer of Loads 10. Motor Protection 11. Generator Protection 12. Transformer Reactor and Shunt Capacitor Bank Protection 13. Protection of Lines 14. Pilot Protection 15. Power System Stability 16. Substation Automation and Communication Protocols Including IEC 61850 17. Protective Relaying for Arc-Flash Reduction

J.C. Das is currently Principal/Consultant with Power System Studies, Inc. Snellville, USA. He headed the Electrical Power Systems Analysis Department at AMEC Inc., (now AMEC Foster Wheeler, Inc.) Tucker, GA, USA, for the last 28 years. Currently he is an independent consultant there. He has varied experience in the utility industry, industrial establishments, hydroelectric generation and atomic energy He is responsible for power system studies, including short-circuit, load flow, harmonics, stability, arc-flash hazard, grounding, switching transients, EMTP simulations and protective relaying. He conducts courses for continuing education in power systems and has authored or coauthored about 65 technical publications, nationally and internationally

"This is an excellent and comprehensive handbook regarding four important topics in electrical power engineering: short-circuits in AC and DC power systems (according to ANSI, IEEE and IEC Standards), load flow and optimal power flow, the problem of harmonics (sources, effects propagation and control) and, finally, protective relaying (from basics to recent technological developments –the microprocessor-based multifunction relays. The aim of this four volumes series is to provide a practical approach to a large scale of problems that an application engineer or consultant may be faced in performing system studies. They offer a solid theoretical and practical basis to understand the whole actual computer aided power system analysis, from data and software tools, to results interpretation. Each part proposes a lot of problem to the reader, with the solutions provided in Appendix.According with our field of interest, the 2nd volume is very interesting. The major aspects of the load flow and of the optimal power flow are presented, in conjunction with deregulated environment and free energy market, security assessments, load estimation and forecasting, uncertainty, HVDC transmission lines, FACTS devices, specific aspect for distribution networks. For solving the OPF, the classical nonlinear optimization approach is followed by the use of the modern heuristic and evolutionary programming based optimization techniques. Many case studies and practical examples are included."—Stefan Kilyeni, Constantin Barbulescu, Politehnica University Timisoara, Romania

• Volume 1 1. Design and Analyses Concepts of Power Systems 2. Modern Electrical Power Systems 3. Wind and Solar Power Generation and Interconnections with Utility 4. Short-Circuit Currents and Symmetrical Components 5. Unsymmetrical Fault Calculations 6. Matrix Methods for Network Solutions 7. Current Interruptions in AC Networks 8. Application and Ratings of Circuit Breakers and Fuses according to ANSI Standards 9. Short Circuit of Synchronous and Induction Machines and Converters 10. Short-Circuit Calculations according to ANSI Standards 11. Short-Circuit Calculations according to IEC Standards 12. Calculations of Short-Circuit Currents in Direct Current Systems Volume 2 1. Load Flow—Fundamental Concepts 2. Automatic Generation and Frequency Control—AGC and AFC 3. Load Flow over AC Transmission Lines 4. HVDC Transmission Load Flow 5. Load Flow Methods: Part I 6. Load Flow Methods: Part II 7. AC Motor Starting Studies 8. Reactive Power Flow and Voltage Control 9. FACTS—Flexible AC Transmission Systems 10. Three-Phase and Distribution System Load Flow 11. Optimization Techniques 12. Optimal Power Flow 13. Heuristic Optimization Techniques Volume 3 1. Harmonics Generation 2. Interharmonics and Flicker 3. Estimation of Harmonics 4. Harmonic Resonance, Secondary Resonance, and Composite Resonance 5. Harmonic Distortion Limits 6. Effects of Harmonics 7. Harmonic Penetrations (Propagation) 8. Harmonic Mitigation and Filters 9. Harmonic Analysis in Solar and Wind Generation Volume 4 1. Modern Protective Relaying: An Overview 2. Protective Relays 3. Instrument Transformers 4. Microprocessor-Based Multifunction Relays 5. Current Interruption Devices and Battery Systems 6. Overcurrent Protection: Ideal and Practical 7. System Grounding 8. Ground Fault Protection 9. Bus-Bar Protection and Autotransfer of Loads 10. Motor Protection 11. Generator Protection 12. Transformer Reactor and Shunt Capacitor Bank Protection 13. Protection of Lines 14. Pilot Protection 15. Power System Stability 16. Substation Automation and Communication Protocols Including IEC 61850 17. Protective Relaying for Arc-Flash Reduction