High voltage engineering: fundamentals

✍ Scribed by John Kuffel, E. Kuffel, W. S. Zaengl

• Publisher: Newnes
• Year: 2000
• Tongue: English
• Leaves: 552
• Series: Newnes
• Edition: 2
• Category: Library

✦ Synopsis

Power transfer for large systems depends on high system voltages. The basics of high voltage laboratory techniques and phenomena, together with the principles governing the design of high voltage insulation, are covered in this book for students, utility engineers, designers and operators of high voltage equipment. In this new edition the text has been entirely revised to reflect current practice. Major changes include coverage of the latest instrumentation, the use of electronegative gases such as sulfur hexafluoride, modern diagnostic techniques, and high voltage testing procedures with statistical approaches. A classic text on high voltage engineering Entirely revised to bring you up-to-date with current practice Benefit from expanded sections on testing and diagnostic techniques

✦ Table of Contents

Contents......Page 4
Preface to Second Edition......Page 10
Preface to First Edition......Page 13
1.1 Generation and transmission of electric energy......Page 14
1.2 Voltage stresses......Page 16
1.3.2 Testing with lightning impulse voltages......Page 18
1.3.4 D.C. voltages......Page 19
1.3.5 Testing with very low-frequency voltage......Page 20
Generation of high voltages......Page 21
2.1 Direct voltages......Page 22
2.1.1 A.C. to D.C. conversion......Page 23
2.1.2 Electrostatic generators......Page 37
2.2 Alternating voltages......Page 42
2.2.1 Testing transformers......Page 45
2.2.2 Series resonant circuits......Page 53
2.3 Impulse voltages......Page 61
2.3.1 Impulse voltage generator circuits......Page 65
2.3.2 Operation, design and construction of impulse generators......Page 79
2.4 Control systems......Page 87
Measurement of high voltages......Page 90
3.1 Peak voltage measurements by spark gaps......Page 91
3.2 Electrostatic voltmeters......Page 107
3.3 Ammeter in series with high ohmic resistors and high ohmic resistor voltage dividers......Page 109
3.4 Generating voltmeters and field sensors......Page 121
3.5 The measurement of peak voltages......Page 123
3.6 Voltage dividing systems and impulse voltage measurements......Page 142
3.7 Fast digital transient recorders for impulse measurements......Page 188
4.1 Electrical field distribution and breakdown strength of insulating materials......Page 214
4.2 Fields in homogeneous, isotropic materials......Page 218
4.3 Fields in multidielectric, isotropic materials......Page 238
4.4 Numerical methods......Page 254
5.1 Classical gas laws......Page 294
5.2 Ionization and decay processes......Page 307
5.13 Surge breakdown voltage– time lag......Page 0
5.4 Transition from non-self-sustained discharges to breakdown......Page 337
5.7 Penning effect......Page 352
5.8 The breakdown field strength (......Page 353
5.9 Breakdown in non-uniform fields......Page 355
5.10 Effect of electron attachment on the breakdown criteria......Page 358
5.11 Partial breakdown, corona discharges......Page 361
6.1 Breakdown in solids......Page 380
6.2 Breakdown in liquids......Page 398
6.3 Static electrification in power transformers......Page 406
7.1 Dynamic properties of dielectrics......Page 408
7.2 Dielectric loss and capacitance measurements......Page 424
7.3 Partial-discharge measurements......Page 434
8.1 The lightning mechanism......Page 473
8.2 Simulated lightning surges for testing......Page 479
8.3 Switching surge test voltage characteristics......Page 481
8.4 Laboratory high-voltage testing procedures and statistical treatment of results......Page 485
8.5 Weighting of the measured breakdown probabilities......Page 502
8.6 Insulation coordination......Page 505
8.7 Modern power systems protection devices......Page 513
9.1 Operation in a contaminated environment......Page 522
9.2 Flashover mechanism of polluted insulators under a. c. and d. c.......Page 523
9.3 Measurements and tests......Page 525
9.4 Mitigation of contamination flashover......Page 533
9.5 Design of insulators......Page 535
9.6 Testing and specifications......Page 543
Index......Page 546