High Voltage Engineering [EEE Department]

High Voltage Engineering [EEE Department]

High Voltage Engineering

OVER VOLTAGES IN ELECTRICAL POWER SYSTEMS

1. Natural Causes of Over Voltages
2. Lightning Phenomenon
3. Lightning Voltage Surges
4. Wilson�s Theory of Charge Separation
5. Mechanism of Lightning Stroke
6. Over Voltages Due to Switching surges
7. Switching Surge Test Voltage Characteristics
8. Over voltage Protection
9. Surge Protection of Rotating Machine
10. System Faults and Other Abnormal Conditions
11. Bewley Lattice Diagram
12. Important Short Questions and Answers: Over Voltages in Electrical Power Systems

DIELECTRIC BREAKDOWN

1. Electrical Breakdown in Gases, Solids and Liquids
2. Classical Gas Laws
3. Corona Discharges
4. Ionization and Decay Processes
5. Townsend�s Criterion
6. Paschen's Law
7. Streamer or Kanal Mechanism of Spark
8. Breakdown in Non-Uniform Fields
9. Breakdown in Liquid Dielectrics
10. Breakdown in Solid Dielectrics
11. Electromechanical Breakdown
12. Thermal Breakdown
13. Breakdown in Composite Dielectrics
14. Electric Discharge in Vacuum
15. Solved Problems: Over(High) Voltages in Electrical Power Systems
16. Important Short Questions and Answers: Electrical breakdown is gases, solids& Liquids

GENERATION OF HIGH VOLTAGES AND HIGH CURRENTS

1. Generation of High Voltages and High Currents
2. Half Wave Rectifier Circuit - Generation of High Voltages and Currents
3. Cockroft Walton Voltage Multiplier Circuit - Generation of High Voltages and Currents
4. Electrostatic Generator
5. Generation of high A.C. voltages
6. Reactive Power Compensation
7. Series Resonant Circuit - Generation of High Voltages and Currents
8. Impulse Voltages
9. Impulse voltage generator circuits
10. Multistage impulse generator circuits
11. Tripping and Control Of Impulse Generators
12. Important Short Questions and Answers: Generation of High Voltages and High Currents

MEASUREMENT OF HIGH VOLTAGES AND HIGH CURRENTS

1. Measurement of High Voltage and High Currents
2. Uniform Field Spark Gaps - Measurement of High Voltage and Currents
3. Rod Gaps - Measurement of High Voltage and Currents
4. Electrostatic Voltmeter - Measurement of High Voltage and Currents
5. Peak Voltmeters with Potential Dividers
6. Impulse Voltage Measurements Using Voltage Dividers
7. CRO Forimpulse Voltage and Current Measurement
8. Resistance Potential Dividers - Digital Techniques in High Voltage Measurement
9. Capacitance Potential Dividers - Digital Techniques in High Voltage Measurement
10. Klydonograph or Surge Recorder - Digital Techniques in High Voltage Measurement
11. Important Short Questions and Answers: Measurement of High Voltage and High Currents

HIGH VOLTAGE TESTING and INSULATION COORDINATION

1. High Voltage Testing of Electrical Power Apparatus
2. Testing Of Overhead Line Insulators
3. Testing of Cables
4. Testing of Bushings
5. Testing of power capacitor
6. Testing of Power Transformers
7. Testing of Circuit Breakers
8. Testing Isolators
9. Surge Arresters
10. Tan Delta Measurement
11. Partial Discharge Measurements
12. The basic PD(Partial Discharge) test circuit
13. Partial Discharge(PD) currents
14. Radio Interference Due to High Voltage Insulator String
15. International and Indian Standards DC Testing Test Voltage
16. Insulation Coordination
17. Important Short Questions and Answers: High Voltage Testing of Electrical Power Apparatus