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High Voltage Engineering Fundamentals

Book Description

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

  1. Cover image
  2. Title page
  3. Table of Contents
  4. Copyright
  5. Preface to Second Edition
  6. Preface to First Edition
  7. Chapter 1: Introduction
    1. 1.1: Generation and transmission of electric energy
    2. 1.2: Voltage stresses
    3. 1.3: Testing voltages
  8. Chapter 2: Generation of high voltages
    1. 2.1: Direct voltages
    2. 2.2: Alternating voltages
    3. 2.3: Impulse voltages
    4. 2.4: Control systems
  9. Chapter 3: Measurement of high voltages
    1. 3.1: Peak voltage measurements by spark gaps
    2. 3.2: Electrostatic voltmeters
    3. 3.3: Ammeter in series with high ohmic resistors and high ohmic resistor voltage dividers
    4. 3.4: Generating voltmeters and field sensors
    5. 3.5: The measurement of peak voltages
    6. 3.6: Voltage dividing systems and impulse voltage measurements
    7. 3.7: Fast digital transient recorders for impulse measurements
  10. Chapter 4: Electrostatic fields and field stress control
    1. 4.1: Electrical field distribution and breakdown strength of insulating materials
    2. 4.2: Fields in homogeneous, isotropic materials
    3. 4.3: Fields in multidielectric, isotropic materials
    4. 4.4: Numerical methods
  11. Chapter 5: Electrical breakdown in gases
    1. 5.1: Classical gas laws
    2. 5.2: Ionization and decay processes
    3. 5.3: Cathode processes – secondary effects
    4. 5.4: Transition from non-self-sustained discharges to breakdown
    5. 5.5: The streamer or ‘Kanal’ mechanism of spark
    6. 5.6: The sparking voltage–Paschen’s law
    7. 5.7: Penning effect
    8. 5.8: The breakdown field strength(Eb)
    9. 5.9: Breakdown in non-uniform fields
    10. 5.10: Effect of electron attachment on the breakdown criteria
    11. 5.11: Partial breakdown, corona discharges
    12. 5.12: Polarity effect – influence of space charge
    13. 5.13: Surge breakdown voltage–time lag
  12. Chapter 6: Breakdown in solid and liquid dielectrics
    1. 6.1: Breakdown in solids
    2. 6.2: Breakdown in liquids
    3. 6.2.1: Electronic breakdown
    4. 6.2.2: Suspended solid particle mechanism
    5. 6.2.3: Cavity breakdown
    6. 6.2.4: Electroconvection and electrohydrodynamic model of dielectric breakdown
    7. 6.3: Static electrification in power transformers
  13. Chapter 7: Non-destructive insulation test techniques
    1. 7.2: Dielectric loss and capacitance measurements
    2. 7.3: Partial-discharge measurements
  14. Chapter 8: Overvoltages, testing procedures and insulation coordination
    1. 8.1: The lightning mechanism
    2. 8.2: Simulated lightning surges for testing
    3. 8.3: Switching surge test voltage characteristics
    4. 8.4: Laboratory high-voltage testing procedures and statistical treatment of results
    5. 8.5: Weighting of the measured breakdown probabilities
    6. 8.6: Insulation coordination
    7. 8.7: Modern power systems protection devices
  15. Chapter 9: Design and testing of external insulation
    1. 9.1: Operation in a contaminated environment
    2. 9.2: Flashover mechanism of polluted insulators under a.c. and d.c.
    3. 9.3: Measurements and tests
    4. 9.4: Mitigation of contamination flashover
    5. 9.5: Design of insulators
    6. 9.6: Testing and specifications
  16. Index