ISBN: Ostalo
Godina izdanja: 1977
Oblast: Elektrotehnika
Jezik: Engleski
Autor: Strani

Izdavač: Mir Publishers
Povez: tvrd sa omotom
Broj strana: 430
Format: 17 x 22 cm
Ilustrovano.
Potpisana, omotnica sanirana selotejpom na par mesta, sama knjiga veoma dobro očuvana.

C O N T E N T S

Preface 9
Introduction 11

I-1. Purpose of Automatic Power Control Systems 11
I-2. Elements of Automatic Control Systems 13
I-3. Automatic Control and Controllers 16
I-4. Relays and Relaying Devices 22
I-5. Elements of Logic Operations 24
I-6. Connection Diagrams 31
I-7. Conclusions 32
I-8. Review Questions 33

Chapter 1. Automatic Control of Synchronous Generator Excitation 35

1-1. Purpose of Automatic Excitation Control (AEC) Devices 35
1-2. Automatic Excitation Forcing of a Generator 38
1-3. Excitation Compounding with Cumulative Connection of Electromagnetic
Voltage Corrector 43
1-4. Excitation Controllers of Generators, Series TVV, with a High-Frequency Excitation System 49
1-5. Overaction Excitation Controllers 51
1-6. Conclusions 56
1-7. Review Questions 57

Chapter 2. Automatic Voltage Regulation 60

2-1. General 60
2-2. Use of AEC Devices 60
2-3. Group Control of Generator Excitation 65
2-4. na Devices for Changing the Transformation Ratio of Power Transformers 69
2-5. Devices for Automatic Capacity ‘Control of Capacitor Banks 75
2-6. Voltage Regulation by Booster Transformers 78
2-7. Voltage Regulation by Changing Excitation of Synchronous Capacitor 78
2-8. Voltage Ngulaan; By: Controlled Reactors 80
2-9. Conclusions 81
2-10. Review Questions 82

Chapter 3. Excitation Systems and Automatic Field pihage Devices of Synchronous Machines 83

3-1. General 83
3-2. Exciters Using Gas-Discharge Tubes and Thyristors 86
3-3. Brushless Excitation System 91
3-4. Excitation Systems of Large Turbogenerators 92
3-5. Field Discharge by Deion Grid Automatic Devices and by changing the Field Coil Supply to Inverter 94
3-6. Conclusions 99
3-7. Review Questions 100

Chapter 4. Automatic Controls for Maintaining Stability in Parallel Operation and Elimination of Asynchronous Operation

4-1. General 102
4-2. Principal Relations Determining Operation of Automatic Controls 103
4-3. Automatic Controls for Improvement of Steady-State Stability 109
4-4. Automatic Controls for Improvement of Transient Stability 124
4-5. Automatic Devices for Sectionalizing Power Systems to Prevent or Eliminate Asynchronous Operation 129
4-6. Separation of Small Thermal Power Stations from Large Hydroelectric Stations when Speed of Hydroelectric Generators Increases 143
4-7. Preventing Misoperation of Protective Relaying 144
4-8. Conclusions 158
4-9. Review Questions 159

Chapter 5. Automatic Frequency Control 161

5-1. Purpose and Specific Features of Automatic PENS Control (AFC) 161
5-2. Modern Principles of AFC 165
5-3. Short-Time Drops of Frequency 169
5-4. Choice of Parameters of FARC Devices and Work of Operators 175
5-5. AFC and FARC Circuits 176
5-6. Induction Frequency Relays 180
5-7. Frequency Relays, Type P4U-I, EAU Onne Semiconductor Blemenie 184
5-8 Conclusions 187
5-9. Review Questions 188

Chapter 6. Automatic Control of Frequency; Real Power and Power Flows in Power Systems 189

6-1. General 189
6-2. Frequency and Power Regulators 193
6-3. Devices to Control Power Output 195
6-4. Power Group Control at Thermal Stations 199
6-5. Power Group Control at Hydroelectric Stations 200
6-6. Frequency and Power Control in Integrated Power Systems 205
6-7. Magnetic Power Transducers 212
6-8. Conclusions 213
6-9. Review Questions 215

Chapter 7. Rapid Paralleling of Synchronous Generators and Parts of Power System 217

7-1. General 217
7-2. Precise Synchronization by Means of an ACT-4 Autosynchronizer 218
7-3. Self-Synchronization of Generators 227
7-4. Automatic Connection of Generators by Self-Synchronization 231
7-5. Speed Control Methods 236
7-6. Asynchronous Connection of Generators and Parts of Power System 238
7-7. Connection of Synchronous Motors, Preventing Their ace Out of a and
Resynchronization 241
7-8. Conclusions 247
7-9. Review Questions 248

Chapter 8. Three-Phase Automatic Reclosure 254

8-1. General 251
8-2. Single Lines ‘with Supply from One End 258
8-3. Single Tie Lines Between Power Stations and Substations with Svachronous Loads 268
8-4. Tie Lines and Parallel Links 287
8-5. TPARC Devices on Air Circuit Breakers 289
8-6. Conclusions 293
8-7. Review Questions 295

Chapter 9. One Phase Automatic Reclosure of Power Transmission Lines 297

9-1. Earth Fault and Tripping of One Phase 297
9-2. Types of Discriminating Elements of PARC Devices 306
9-3. PARC Circuit 312
9-4. Use of TPARC Device of Double-Shot Type and Pole-After-Pole Isolators in Place of a PARC Device on Lines 315
9-9. Conclusions 316
9-6. Review Questions 317

Chapter 10. Three Phase Automatic Reclosure of Transformers and Busbars 319

10-1. General 319
10-2. Automatic Testing of Busbars for Insulation 321
10-3. Power Supply to Consumers After Tripping of Busbars and Automatic
Reestablishing of Substation Connections 322
10-4. Automatic Reestablishing of Power Station Connections 324
10-5. Three-Phase ARC of Transformers 325
10-6. Conclusions 327
10-7. Review Questions 327

Chapter 11. Automatic Transfer to Reserve Supply and Equipment 328

11-1. General 328
11-2. ATS Device Circuits 331
11-3. ATS Devices Used by Substations Supplying Synchronous Loads 339
11-4. ATS Devices with Standardization Control Stations 341
41-5. Self-Starting of an Asynchronous Load 343
41-6. Conclusions 356
11-7. Review Questions 307

Chapter 12. Operation of ARC and ATS Devices in Conjunction with Protective Relaying 358

12-1. Acceleration of Protection Action Before ARC 308
12-2. Acceleration of Protection Action After ARC, ATS, and Remote Connection 359
12-3. High-Speed Selective Disconnection 360
12-4. Substations Without Circuit Breakers on the High-Tension Side 864
12-5. Simplifying Protective Relaying of Complex System Lines 367
12-6. Simplifying Primary Connection Circuits and Protective Relaying 369
12-7. Step-Down Transformers at Remote-Controlled Substations 373
12-8. Automatic Discriminating Redundancy 374
12-9. Conclusions 376
12-10. Review Questions 377

Chapter 13. Automatic Control Eliminating Overvoltages Across Equipment 378

13-1. General 378
13-2. Overvoltage Automatic Protection Controls
13-3. Increasing the Reset-to-Pickup Ratio of Voltage Relay
13-4. Conclusions

Chapter 14. Automatic Recording of Electrical Variables in Disturbances 392

14-1. General 392
14-2. Automatic Starting Devices for Oscillographs 396
14-3. Devices for Recording Electrical Variables with Automatic Acceleration of Recording Speeds During Disturbances
14-4. Automatic Oscillographs 403
14-5. Locating the Fault on Power Transmission Line from Fixing Instruments 406
14-6. Fixing Instruments 411
44-7. Conclusions 418
44-8. Review Questions 419

References 420
Index 428

(K-33)