{"product_id":"power-system-harmonics-and-passive-filter-designs-hardback-9781118861622","title":"Power System Harmonics and Passive Filter Designs (Hardback) 9781118861622","description":"\u003cfont face=\"Georgia\"\u003e\r\n\u003cp\u003e\u003cfont size=\"6\"\u003ePower System Harmonics and Passive Filter Designs\u003c\/font\u003e\u003cbr\u003e\r\n\r\n\r\n\r\n\r\n\r\n\u003c\/p\u003e\n\u003cp\u003e\u003cfont size=\"4\"\u003eJ. C. Das (Author)\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e9781118861622, Wiley\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eHardback, published 22 May 2015\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e872 pages\u003cbr\u003e24.4 x 16.4 x 4.9 cm, 1.279 kg\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\r\n\u003cp align=\"justify\"\u003e\u003cem\u003e\u003cfont size=\"3\"\u003e\u003cp\u003e“Students and professionals will definitely find this book an essential resource that will be referenced for many years.”  (\u003ci\u003eIEEE Electrical Engineering magazine\u003c\/i\u003e, 1 January 2016)\u003c\/p\u003e \u003cp\u003e \u003c\/p\u003e\u003c\/font\u003e\u003c\/em\u003e\u003c\/p\u003e\r\n\r\n\u003cp align=\"justify\"\u003e\u003cstrong\u003e\u003cfont size=\"3\"\u003eAs new technologies are created and advances are made with the ongoing research efforts, power system harmonics has become a subject of great interest. The author presents these nuances with real-life case studies, comprehensive models of power system components for harmonics, and EMTP simulations.\u003cbr\u003e\u003cbr\u003e \u003cul\u003e \u003cli\u003eComprehensive coverage of power system harmonics\u003c\/li\u003e \u003cli\u003ePresents new harmonic mitigation technologies\u003c\/li\u003e \u003cli\u003eIn-depth analysis of the effects of harmonics\u003c\/li\u003e \u003cli\u003eForeword written by Dr. Jean Mahseredijan, world renowned authority on simulations of electromagnetic transients and harmonics\u003c\/li\u003e \u003c\/ul\u003e\u003c\/font\u003e\u003c\/strong\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003e\u003cp\u003eFOREWORD xv\u003c\/p\u003e \u003cp\u003ePREFACE xix\u003c\/p\u003e \u003cp\u003eABOUT THE AUTHOR xxi\u003c\/p\u003e \u003cp\u003eCHAPTER 1 POWER SYSTEM HARMONICS 1\u003c\/p\u003e \u003cp\u003e1.1 Nonlinear Loads 2\u003c\/p\u003e \u003cp\u003e1.2 Increases in Nonlinear Loads 3\u003c\/p\u003e \u003cp\u003e1.3 Effects of Harmonics 4\u003c\/p\u003e \u003cp\u003e1.4 Distorted Waveforms 4\u003c\/p\u003e \u003cp\u003e1.5 Harmonics and Sequence Components 7\u003c\/p\u003e \u003cp\u003e1.6 Harmonic Indices 9\u003c\/p\u003e \u003cp\u003e1.7 Power Factor, Distortion Factor, and Total Power Factor 11\u003c\/p\u003e \u003cp\u003e1.8 Power Theories 13\u003c\/p\u003e \u003cp\u003e1.9 Amplification and Attenuation of Harmonics 27\u003c\/p\u003e \u003cp\u003eReferences 28\u003c\/p\u003e \u003cp\u003eCHAPTER 2 FOURIER ANALYSIS 31\u003c\/p\u003e \u003cp\u003e2.1 Periodic Functions 31\u003c\/p\u003e \u003cp\u003e2.2 Orthogonal Functions 31\u003c\/p\u003e \u003cp\u003e2.3 Fourier Series and Coefficients 33\u003c\/p\u003e \u003cp\u003e2.4 Odd Symmetry 35\u003c\/p\u003e \u003cp\u003e2.5 Even Symmetry 36\u003c\/p\u003e \u003cp\u003e2.6 Half-Wave Symmetry 37\u003c\/p\u003e \u003cp\u003e2.7 Harmonic Spectrum 41\u003c\/p\u003e \u003cp\u003e2.8 Complex form of Fourier Series 41\u003c\/p\u003e \u003cp\u003e2.9 Fourier Transform 43\u003c\/p\u003e \u003cp\u003e2.10 Dirichlet Conditions 52\u003c\/p\u003e \u003cp\u003e2.11 Power Spectrum of a Function 54\u003c\/p\u003e \u003cp\u003e2.12 Convolution 56\u003c\/p\u003e \u003cp\u003e2.13 Sampled Waveform: Discrete Fourier Transform 57\u003c\/p\u003e \u003cp\u003e2.14 Fast Fourier Transform 64\u003c\/p\u003e \u003cp\u003eReferences 69\u003c\/p\u003e \u003cp\u003eCHAPTER 3 HARMONIC GENERATION-1 71\u003c\/p\u003e \u003cp\u003e3.1 Harmonics in Transformers 71\u003c\/p\u003e \u003cp\u003e3.2 Energization of a Transformer 79\u003c\/p\u003e \u003cp\u003e3.3 Delta Windings of Three-Phase Transformers 82\u003c\/p\u003e \u003cp\u003e3.4 Harmonics in Rotating Machine Windings 92\u003c\/p\u003e \u003cp\u003e3.5 Cogging and Crawling of Induction Motors 97\u003c\/p\u003e \u003cp\u003e3.6 Synchronous Generators 102\u003c\/p\u003e \u003cp\u003e3.7 Saturation of Current Transformers 104\u003c\/p\u003e \u003cp\u003e3.8 Ferroresonance 105\u003c\/p\u003e \u003cp\u003e3.9 Power Capacitors 111\u003c\/p\u003e \u003cp\u003e3.10 Transmission Lines 112\u003c\/p\u003e \u003cp\u003eReferences 112\u003c\/p\u003e \u003cp\u003eCHAPTER 4 HARMONIC GENERATION-II 115\u003c\/p\u003e \u003cp\u003e4.1 Static Power Converters 115\u003c\/p\u003e \u003cp\u003e4.2 Single-Phase Bridge Circuit 115\u003c\/p\u003e \u003cp\u003e4.3 Reactive Power Requirements of Converters 122\u003c\/p\u003e \u003cp\u003e4.4 Three-Phase Bridge Circuit 124\u003c\/p\u003e \u003cp\u003e4.5 Harmonics on Output (DC) Side 133\u003c\/p\u003e \u003cp\u003e4.6 Inverter Operation 135\u003c\/p\u003e \u003cp\u003e4.7 Diode Bridge Converters 139\u003c\/p\u003e \u003cp\u003e4.8 Switch-Mode Power (SMP) Supplies 142\u003c\/p\u003e \u003cp\u003e4.9 Home Appliances 143\u003c\/p\u003e \u003cp\u003e4.10 Arc Furnaces 144\u003c\/p\u003e \u003cp\u003e4.11 Cycloconverters 147\u003c\/p\u003e \u003cp\u003e4.12 Thyristor-Controlled Reactor 150\u003c\/p\u003e \u003cp\u003e4.13 Pulse Width Modulation 154\u003c\/p\u003e \u003cp\u003e4.14 Voltage Source Converters 158\u003c\/p\u003e \u003cp\u003e4.15 Wind Power Generation 162\u003c\/p\u003e \u003cp\u003e4.16 Fluorescent Lighting 165\u003c\/p\u003e \u003cp\u003e4.17 Adjustable Speed Drives 167\u003c\/p\u003e \u003cp\u003e4.18 Pulse Burst Modulation 174\u003c\/p\u003e \u003cp\u003e4.19 Chopper Circuits and Electric Traction 175\u003c\/p\u003e \u003cp\u003e4.20 Slip Frequency Recovery Schemes 177\u003c\/p\u003e \u003cp\u003e4.21 Power Semiconductor Devices 178\u003c\/p\u003e \u003cp\u003eReferences 181\u003c\/p\u003e \u003cp\u003eCHAPTER 5 INTERHARMONICS AND FLICKER 183\u003c\/p\u003e \u003cp\u003e5.1 Interharmonics 183\u003c\/p\u003e \u003cp\u003e5.2 Sources of Interharmonics 183\u003c\/p\u003e \u003cp\u003e5.3 Arc Furnaces 192\u003c\/p\u003e \u003cp\u003e5.4 Effects of Interharmonics 196\u003c\/p\u003e \u003cp\u003e5.5 Reduction of Interharmonics 198\u003c\/p\u003e \u003cp\u003e5.6 Flicker 198\u003c\/p\u003e \u003cp\u003e5.7 Flicker Testing 202\u003c\/p\u003e \u003cp\u003e5.8 Control of Flicker 205\u003c\/p\u003e \u003cp\u003e5.9 Tracing Methods of Flicker and Interharmonics 208\u003c\/p\u003e \u003cp\u003e5.10 Torsional Analysis 210\u003c\/p\u003e \u003cp\u003e5.11 Subsynchronous Resonance 217\u003c\/p\u003e \u003cp\u003eReferences 225\u003c\/p\u003e \u003cp\u003eCHAPTER 6 HARMONIC REDUCTION AT THE SOURCE 229\u003c\/p\u003e \u003cp\u003e6.1 Phase Multiplication 230\u003c\/p\u003e \u003cp\u003e6.2 Varying Topologies 230\u003c\/p\u003e \u003cp\u003e6.3 Harmonic Cancellation: Commercial Loads 232\u003c\/p\u003e \u003cp\u003e6.4 Input Reactors to the PWM ASDs 235\u003c\/p\u003e \u003cp\u003e6.5 Active Filters 237\u003c\/p\u003e \u003cp\u003e6.6 Active Current Shaping 248\u003c\/p\u003e \u003cp\u003e6.7 Hybrid Connections of Active and Passive Filters 251\u003c\/p\u003e \u003cp\u003e6.8 Impedance Source Inverters 255\u003c\/p\u003e \u003cp\u003e6.9 Matrix Converters 259\u003c\/p\u003e \u003cp\u003e6.10 Mutilevel Inverters 262\u003c\/p\u003e \u003cp\u003e6.11 Switching Algorithms for Harmonic Control 270\u003c\/p\u003e \u003cp\u003e6.12 Theory of Resultants of Polynomials 271\u003c\/p\u003e \u003cp\u003eReferences 277\u003c\/p\u003e \u003cp\u003eCHAPTER 7 ESTIMATION AND MEASUREMENTS OF HARMONICS 281\u003c\/p\u003e \u003cp\u003e7.1 Waveform without Ripple Content 282\u003c\/p\u003e \u003cp\u003e7.2 Waveform with Ripple Content 288\u003c\/p\u003e \u003cp\u003e7.3 Phase Angle of Harmonics 298\u003c\/p\u003e \u003cp\u003e7.4 Measurements of Harmonics 304\u003c\/p\u003e \u003cp\u003e7.5 Measuring Equipment 309\u003c\/p\u003e \u003cp\u003e7.6 Transducers for Harmonic Measurements 312\u003c\/p\u003e \u003cp\u003e7.7 Characterizing Measured Data 314\u003c\/p\u003e \u003cp\u003e7.8 Probabilistic Concepts 316\u003c\/p\u003e \u003cp\u003e7.9 Summation of Harmonic Vectors with Random Angles 323\u003c\/p\u003e \u003cp\u003e7.10 Central Limit Theorem 326\u003c\/p\u003e \u003cp\u003e7.11 Kalman Filtering 326\u003c\/p\u003e \u003cp\u003eReferences 329\u003c\/p\u003e \u003cp\u003eCHAPTER 8 EFFECTS OF HARMONICS 331\u003c\/p\u003e \u003cp\u003e8.1 Rotating Machines 332\u003c\/p\u003e \u003cp\u003e8.2 Effect of Negative Sequence Currents on Synchronous Generators 335\u003c\/p\u003e \u003cp\u003e8.3 Insulation Stresses 337\u003c\/p\u003e \u003cp\u003e8.4 Transformers 345\u003c\/p\u003e \u003cp\u003e8.5 Cables 359\u003c\/p\u003e \u003cp\u003e8.6 Capacitors 361\u003c\/p\u003e \u003cp\u003e8.7 Voltage Notching 362\u003c\/p\u003e \u003cp\u003e8.8 EMI (Electromagnetic Interference) 363\u003c\/p\u003e \u003cp\u003e8.9 Overloading of Neutral 367\u003c\/p\u003e \u003cp\u003e8.10 Protective Relays and Meters 369\u003c\/p\u003e \u003cp\u003e8.11 Circuit Breakers and Fuses 372\u003c\/p\u003e \u003cp\u003e8.12 Telephone Influence Factor 372\u003c\/p\u003e \u003cp\u003eReferences 377\u003c\/p\u003e \u003cp\u003eCHAPTER 9 HARMONIC RESONANCE 379\u003c\/p\u003e \u003cp\u003e9.1 Two-Port Networks 379\u003c\/p\u003e \u003cp\u003e9.2 Resonance in Series and Parallel RLC Circuits 383\u003c\/p\u003e \u003cp\u003e9.3 Practical LC Tank Circuit 391\u003c\/p\u003e \u003cp\u003e9.4 Reactance Curves 396\u003c\/p\u003e \u003cp\u003e9.5 Foster's Networks 397\u003c\/p\u003e \u003cp\u003e9.6 Harmonic Resonance 400\u003c\/p\u003e \u003cp\u003e9.7 Harmonic Resonance in a Distribution System 404\u003c\/p\u003e \u003cp\u003e9.8 Elusiveness of Resonance Problems 405\u003c\/p\u003e \u003cp\u003e9.9 Resonance Due to Single-Tuned Filters 408\u003c\/p\u003e \u003cp\u003e9.10 Switched Capacitors for Power Factor Improvement 410\u003c\/p\u003e \u003cp\u003e9.11 Secondary Resonance 411\u003c\/p\u003e \u003cp\u003e9.12 Multiple Resonances in a Distribution Feeder 415\u003c\/p\u003e \u003cp\u003e9.13 Part-Winding Resonance in Transformer Windings 416\u003c\/p\u003e \u003cp\u003e9.14 Composite Resonance 419\u003c\/p\u003e \u003cp\u003e9.15 Resonance in Transmission Lines 421\u003c\/p\u003e \u003cp\u003e9.16 Zero Sequence Resonance 421\u003c\/p\u003e \u003cp\u003e9.17 Factors Affecting Harmonic Resonance 423\u003c\/p\u003e \u003cp\u003eReferences 424\u003c\/p\u003e \u003cp\u003eCHAPTER 10 HARMONIC DISTORTION LIMITS ACCORDING TO STANDARDS 427\u003c\/p\u003e \u003cp\u003e10.1 Standards for Limitation of Harmonics 427\u003c\/p\u003e \u003cp\u003e10.2 IEEE 519 Harmonic Current and Voltage Limits 429\u003c\/p\u003e \u003cp\u003e10.3 Point of Common Coupling (PCC) 432\u003c\/p\u003e \u003cp\u003e10.4 Applying IEEE 519 Harmonic Distortion Limits 433\u003c\/p\u003e \u003cp\u003e10.5 Time Varying Characteristics of Harmonics 435\u003c\/p\u003e \u003cp\u003e10.6 IEC Harmonic Current Emission Limits 436\u003c\/p\u003e \u003cp\u003e10.7 Voltage Quality 440\u003c\/p\u003e \u003cp\u003e10.8 Commutation Notches 444\u003c\/p\u003e \u003cp\u003e10.9 Applying Limits to Practical Power Systems 449\u003c\/p\u003e \u003cp\u003eReferences 450\u003c\/p\u003e \u003cp\u003eCHAPTER 11 APPLICATION OF SHUNT CAPACITOR BANKS 453\u003c\/p\u003e \u003cp\u003e11.1 Shunt Capacitor Banks 453\u003c\/p\u003e \u003cp\u003e11.2 Location of Shunt Capacitors 458\u003c\/p\u003e \u003cp\u003e11.3 Ratings of Capacitors 459\u003c\/p\u003e \u003cp\u003e11.4 Shunt Capacitor Bank Arrangements 465\u003c\/p\u003e \u003cp\u003e11.5 Fusing 468\u003c\/p\u003e \u003cp\u003e11.6 Connections of Banks 476\u003c\/p\u003e \u003cp\u003e11.7 Unbalance Detection 479\u003c\/p\u003e \u003cp\u003e11.8 Destabilizing Effect of Capacitor Banks 481\u003c\/p\u003e \u003cp\u003e11.9 Switching Transients of Capacitor Banks 483\u003c\/p\u003e \u003cp\u003e11.10 Control of Switching Transients 486\u003c\/p\u003e \u003cp\u003e11.11 Switching Capacitors with Motors 489\u003c\/p\u003e \u003cp\u003e11.12 Switching Devices 490\u003c\/p\u003e \u003cp\u003e11.13 Switching Controls 498\u003c\/p\u003e \u003cp\u003eReferences 501\u003c\/p\u003e \u003cp\u003eCHAPTER 12 MODELING OF SYSTEM COMPONENTS FOR HARMONIC ANALYSIS 503\u003c\/p\u003e \u003cp\u003e12.1 Transmission Lines 503\u003c\/p\u003e \u003cp\u003e12.2 Cables 532\u003c\/p\u003e \u003cp\u003e12.3 Zero Sequence Impedance of OH Lines and Cables 538\u003c\/p\u003e \u003cp\u003e12.4 Filter Reactors 539\u003c\/p\u003e \u003cp\u003e12.5 Transformers 540\u003c\/p\u003e \u003cp\u003e12.6 Induction Motors 554\u003c\/p\u003e \u003cp\u003e12.7 Synchronous Generators 556\u003c\/p\u003e \u003cp\u003e12.8 Load Models 557\u003c\/p\u003e \u003cp\u003e12.9 System Impedance 559\u003c\/p\u003e \u003cp\u003e12.10 Three-Phase Models 561\u003c\/p\u003e \u003cp\u003e12.11 Uncharacteristic Harmonics 563\u003c\/p\u003e \u003cp\u003e12.12 Converters 564\u003c\/p\u003e \u003cp\u003eReferences 566\u003c\/p\u003e \u003cp\u003eCHAPTER 13 HARMONIC MODELING OF SYSTEMS 569\u003c\/p\u003e \u003cp\u003e13.1 Electrical Power Systems 569\u003c\/p\u003e \u003cp\u003e13.2 Extent of Network Modeling 572\u003c\/p\u003e \u003cp\u003e13.3 Impact of Loads and Generation 573\u003c\/p\u003e \u003cp\u003e13.4 Short-Circuit and Fundamental Frequency Load Flow Calculations 574\u003c\/p\u003e \u003cp\u003e13.5 Industrial Systems 578\u003c\/p\u003e \u003cp\u003e13.6 Distribution Systems 582\u003c\/p\u003e \u003cp\u003e13.7 Transmission Systems 589\u003c\/p\u003e \u003cp\u003e13.8 Compensation of Transmission Lines 593\u003c\/p\u003e \u003cp\u003e13.9 Commercial Buildings 598\u003c\/p\u003e \u003cp\u003e13.10 Residential Loads 599\u003c\/p\u003e \u003cp\u003e13.11 HVDC Transmission 599\u003c\/p\u003e \u003cp\u003eReferences 605\u003c\/p\u003e \u003cp\u003eCHAPTER 14 HARMONIC PROPAGATION 607\u003c\/p\u003e \u003cp\u003e14.1 Harmonic Analysis Methods 608\u003c\/p\u003e \u003cp\u003e14.2 Frequency Domain Analysis 608\u003c\/p\u003e \u003cp\u003e14.3 Frequency Scan 610\u003c\/p\u003e \u003cp\u003e14.4 Voltage Scan 611\u003c\/p\u003e \u003cp\u003e14.5 Harmonic Analysis Methods 612\u003c\/p\u003e \u003cp\u003e14.6 Time Domain Analysis 620\u003c\/p\u003e \u003cp\u003e14.7 Sensitivity Methods 620\u003c\/p\u003e \u003cp\u003e14.8 Unbalanced AC System and HVDC Link 622\u003c\/p\u003e \u003cp\u003e14.9 Hybrid Frequency and Time Domain Concept 623\u003c\/p\u003e \u003cp\u003e14.10 Probabilistic Concepts 626\u003c\/p\u003e \u003cp\u003e14.11 Computer-Based Programs 631\u003c\/p\u003e \u003cp\u003e14.12 Harmonic Analyses of a Large Industrial System 632\u003c\/p\u003e \u003cp\u003e14.13 Long Transmission Line 653\u003c\/p\u003e \u003cp\u003e14.14 34.5 kV UG Cable 673\u003c\/p\u003e \u003cp\u003e14.15 5-Bus Transmission System 673\u003c\/p\u003e \u003cp\u003eReferences 682\u003c\/p\u003e \u003cp\u003eCHAPTER 15 PASSIVE FILTERS 685\u003c\/p\u003e \u003cp\u003e15.1 Filter Types 685\u003c\/p\u003e \u003cp\u003e15.2 Single-Tuned Filters 690\u003c\/p\u003e \u003cp\u003e15.3 Harmonic Filter Detuning and Unbalance 699\u003c\/p\u003e \u003cp\u003e15.4 Relations in an ST Filter 699\u003c\/p\u003e \u003cp\u003e15.5 Selection of Q Factor 701\u003c\/p\u003e \u003cp\u003e15.6 Double-Tuned Filter 702\u003c\/p\u003e \u003cp\u003e15.7 Bandpass Filters 704\u003c\/p\u003e \u003cp\u003e15.8 Damped Filters 705\u003c\/p\u003e \u003cp\u003e15.9 Type C Filter 710\u003c\/p\u003e \u003cp\u003e15.10 Zero Sequence Traps 716\u003c\/p\u003e \u003cp\u003e15.11 Series-Type Low-Pass Filter 717\u003c\/p\u003e \u003cp\u003e15.12 Transfer Function Approach for Filter Designs 718\u003c\/p\u003e \u003cp\u003e15.13 Optimization Techniques of Filter Designs 723\u003c\/p\u003e \u003cp\u003e15.14 Genetic Algorithms for Filter Designs 728\u003c\/p\u003e \u003cp\u003e15.15 HVDC-DC Filters 731\u003c\/p\u003e \u003cp\u003e15.16 Limitations of Passive Filters 734\u003c\/p\u003e \u003cp\u003e15.17 Flowchart for Design of Filters 735\u003c\/p\u003e \u003cp\u003e15.18 Filter Components 735\u003c\/p\u003e \u003cp\u003e15.19 Failure of Harmonic Filters 741\u003c\/p\u003e \u003cp\u003eReferences 741\u003c\/p\u003e \u003cp\u003eCHAPTER 16 PRACTICAL PASSIVE FILTER DESIGNS 745\u003c\/p\u003e \u003cp\u003e16.1 Study 1: Small Distribution System with Major Six-Pulse Loads 745\u003c\/p\u003e \u003cp\u003e16.2 Study 2: Filters for Arc Furnance Loads 756\u003c\/p\u003e \u003cp\u003e16.3 Study 3: Filters for Two 8000-Hp ID Fan Drives 770\u003c\/p\u003e \u003cp\u003e16.4 Study 4: Double-Tuned filter on a Three-Winding Transformer 782\u003c\/p\u003e \u003cp\u003e16.5 Study 5: PV Solar Generation Plant 785\u003c\/p\u003e \u003cp\u003e16.6 Study 6: Impact of Harmonics at a Distance 799\u003c\/p\u003e \u003cp\u003e16.7 Study 7: Wind Generation Farm 804\u003c\/p\u003e \u003cp\u003eINDEX 829\u003c\/p\u003e\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\u003cp\u003e\u003cfont size=\"3\"\u003eSubject Areas: Electronics \u0026amp; communications engineering [\u003ca title=\"See our other books on Electronics \u0026amp; communications engineering\" href=\"https:\/\/freshlyprintedbooks.co.uk\/search?q=%22Electronics%20\u0026amp;%20communications%20engineering%20%5BTJ%5D%22\"\u003eTJ\u003c\/a\u003e]\u003c\/font\u003e\u003c\/p\u003e\r\n\r\n\r\n\u003c\/font\u003e","brand":"Wiley-IEEE Press","offers":[{"title":"Brand New","offer_id":52165915803928,"sku":"9781118861622","price":100.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0730\/2037\/5320\/files\/9781118861622.jpg?v=1781101813","url":"https:\/\/freshlyprintedbooks.co.uk\/products\/power-system-harmonics-and-passive-filter-designs-hardback-9781118861622","provider":"Freshly Printed Books","version":"1.0","type":"link"}