High Voltage Engineering Fundamentals (Second edition)
by E. Kuffel, W.S. Zaengl and J. Kuffel
| Pages 539 | PDF | 4.4 MB |
Content,
Introduction
- Generation and transmission of electric energy
- Voltage stresses
- Testing voltages
Generation of high voltages
- Direct voltages
- Alternating voltages
- Impulse voltages
- Control systems
Measurement of high voltages
- Peak voltage measurements by spark gaps
- Electrostatic voltmeters
- Generating voltmeters and field sensors
- The measurement of peak voltages
- Voltage dividing systems and impulse voltage measurements
- Fast digital transient recorders for impulse measurements
Electrostatic fields and field stress control
- Electrical field distribution and breakdown strength of insulating materials
- Fields in homogeneous, isotropic materials
- Fields in multidielectric, isotropic materials
- Numerical methods
Electrical breakdown in gases
- Classical gas laws
- Ionization and decay processes
- Cathode processes – secondary effects
- Transition from non-self-sustained discharges to breakdown
- The streamer or ‘Kanal’ mechanism of spark
- The sparking voltage–Paschen’s law
- Penning effect
- The breakdown field strength (Eb)
- Breakdown in non-uniform fields
- Effect of electron attachment on the breakdown criteria
- Partial breakdown, corona discharges
- Polarity effect – influence of space charge
- Surge breakdown voltage–time lag
Breakdown in solid and liquid dielectrics
- Breakdown in solids
- Breakdown in liquids
- Static electrification in power transformers
Non-destructive insulation test techniques
- Dynamic properties of dielectrics
- Dielectric loss and capacitance measurements
- Partial-discharge measurements
Overvoltages, testing procedures and insulation coordination
- The lightning mechanism
- Simulated lightning surges for testing
- Switching surge test voltage characteristics
- Laboratory high-voltage testing procedures and statistical treatment of results
- Weighting of the measured breakdown probabilities
- Insulation coordination
- Modern power systems protection devices
Design and testing of external insulation
- Operation in a contaminated environment
- Flashover mechanism of polluted insulators under a.c. and d.c.
- Measurements and tests
- Mitigation of contamination flashover
- Design of insulators
- Testing and specifications
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