Professor Emanuel uses clear presentation to compare and facilitateunderstanding of two seminal standards, The IEEE Std. 1459 and TheDIN 40110-2:2002-11. Through critical analysis of the mostimportant and recent theories and review of basic concepts, ahighly accessible guide to the essence of the standards ispresented.
Key features:
* Explains the physical mechanism of energy flow under differentconditions: single- and three-phase, sinusoidal and nonsinusoidal,balanced and unbalanced systems
* Starts at an elementary level and becomes more complex, withsix core chapters and six appendices to clarify the mathematicalaspects
* Discusses and recommends power definitions that played asignificant historical role in paving the road for the twostandards
* Provides a number of original unsolved problems at the end ofeach chapter
* Introduces a new nonactive power; the Randomness power.
Power Definitions and the Physical Mechanism of PowerFlow is useful for electrical engineers and consultantsinvolved in energy and power quality. It is also helpful toengineers dealing with energy flow quantification, design andmanufacturing of metering instrumentation; consultants working withregulations related to renewable energy courses and the smart grid;and electric utility planning and operation engineers dealing withenergy bill structure. The text is also relevant to universityresearchers, professors, and advanced students in power systems,power quality and energy related courses.

Professor Alexander Eigeles Emanuel, Electrical and Computer Engineering, Worcester Polytechnic Institute, USA
Professor Emanuel has been working in the power field for around 45 years and he is currently Chairman of the Working Group that is responsible for the IEEE Std. 1459-2000. Founder of the International Conference on Harmonics and Power Quality, much of his groundbreaking work focuses on the effects of voltage and current waveform distortions on electrical systems.
After holding engineering posts in Israel and Romania, Professor Emanuel joined Worcester Polytechnic Institute in 1974. In 2008 he received the Chairman's Exemplary Faculty Prize from the institute, awarded for outstanding teaching and research. Besides this, he has also won the Board of Trustee's award, the 1998 R.H. Lee award from the IEEE Industry Applicationns Society, and many others including the Power Systems Instrumentation and Measurement Award. An IEEE Life Fellow, Professor Emanuel has been published in over 200 journal articals and recently contributed to Paulo Ribeiro's book Time-Varying Waveform Distortions in Power Systems, published by Wiley in 2009.

Foreword xiPreface xiii1 Electric Energy Flow: Physical Mechanisms 11.1 Problems 161.2 References 182 Single-Phase Systems With Sinusoidal Waveforms 212.1 The Resistance 212.2 The Inductance 252.3 The Capacitance 272.4 The R - L - C Loads 292.5 The Apparent Power 302.6 The Concept of Power Factor and Power Factor Correction342.7 Comments on Power Factor 382.8 Other Means of Reactive Power Control and Compensation412.9 Series Compensation 442.10 Reactive Power Caused by Mechanical Components that StoreEnergy 452.11 Physical Interpretation of Instantaneous Powers by Means ofPoynting Vector 482.12 Problems 572.13 References 603 Single-Phase Systems with Nonsinusoidal Waveforms633.1 The Linear Resistance 633.2 The Linear Inductance 683.3 The Linear Capacitance 713.4 The Linear Series R . L . C Circuit 713.5 The Nonlinear Resistance 743.6 The Nonlinear Inductance 803.7 Nonlinear Load: The General Case 833.8 Problems 903.9 References 924 Apparent Power Resolution for Nonsinusoidal Single-PhaseSystems 934.1 Constantin I. Budeanu's Method 954.2 Stanislaw Fryze's Method 994.3 Manfred Depenbrock's Method 1024.4 Leszek Czarnecki's Method 1064.5 The Author's Method 1104.6 Comparison Among the Methods 1154.7 Power Factor Compensation 1204.8 Comments on Skin Effect, Apparent Power, and Power Factor1284.9 The Additiveness Problem 1314.10 Problems 1354.11 References 1375 Three-Phase Systems with Sinusoidal Waveforms 1395.1 Background: The Balanced and Symmetrical System 1405.2 The Three-Phase Unbalanced System 1425.3 The Power Factor Dilemma 1455.4 Powers and Symmetrical Components 1495.4.1 How Symmetrical Components are Generated 1495.4.2 Expressing the Powers by Means of Symmetrical Components1545.5 Effective Apparent Power Resolutions 1585.5.1 FBD-Method 1585.5.2 L. S. Czarnecki's Method 1655.5.3 IEEE Std. 1459-2010 Method 1675.5.4 Comparison Between The Two Major Engineering Schools ofThought 1695.6 Problems 1825.7 References 1846 Three-Phase Nonsinusoidal and Unbalanced Conditions1856.1 The Vector Apparent Power Approach 1856.2 The IEEE Std. 1459-2010's Approach 1876.3 The DIN 40110's Approach 1926.3.1 The IEEE Std. 1459-2010 Approach 1956.3.2 The DIN 40110 Approach 1966.4 Observations and Suggestions 1986.5 Problems 2016.6 References 2027 Power Definitions for Time-Varying Loads 2057.1 Background: Basic Example 2067.2 Single-Phase Sinusoidal Case 2107.2.1 Analytical Expressions of Powers: Single-Phase Sinusoidal2137.3 Single-Phase Nonsinusoidal Case 2147.4 Three-Phase Sinusoidal and Unbalanced Condition 2167.5 Three-Phase Systems with Nonsinusoidal and UnbalancedCondition 2207.6 Problems 2257.7 References 2278 Appendices 2298.1 Appendix I: The Electrostatic Field Distribution in aCoaxial Cable 2298.2 Appendix II: Poynting Vector due to Displacement Current2318.3 Appendix III: Electric Field Caused by a Time-VaryingMagnetic Field 2328.4 Appendix IV: The Electromagnetic Wave Along the Three-PhaseLine 2358.5 Appendix V: Equation (5.99) 2428.6 Appendix VI: Maximum Active Power (Three-Phase, Four-WireSystem) 2438.7 Appendix VII: About the Ratio p = Rs/Rn 2478.8 Appendix VIII: The Use of Varmeters in the Presence ofNonsinusoidaland Asymmetrical Voltages and Currents 2498.9 References 258Index 259