High Voltage Engineering: Designing a Reliable and Economic Insulation System (Manila)

HRODC Postgraduate Training Institute
En Manila, Philippines (Filipinas)

£10.000 - ($8.531.273)
Exento de IVA

Información importante

  • Curso
  • Manila, philippines (Filipinas)
  • Duración:
    10 Days
  • Cuándo:
    A definir
Descripción


Suitable for: This course is designed for: Electrical Engineers, Master Electricians, Maintenance Electricians, Electrical Contractors, Utility and Industrial Electrical Engineers and Engineering Technicians, Industrial Line Workers, Project Engineers, Design Engineers, Field Technicians, Etc.

Información importante

Requisitos: Degree or Work Experience

Instalaciones

¿Dónde se da y en qué fecha?

comienzo Ubicación
A definir
Manila, Philippines
Makati, 1200, Philippines, Filipinas
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¿Qué aprendes en este curso?

Testing
IT
Electrical
Engineering

Temario

Course Contents, Concepts and Issues:

Breakdown Mechanism in Gases under Static Uniform Field

  • What is Breakdown of Insulators?
  • Electric Field and Stress
  • Bohr’s Atomic and Model
  • Ionization
  • Ionization Processes
  • Ionization by Collision
  • Photo-Ionization
  • Ionization on the Surface of Electrodes
  • Townsend’s Mechanism
  • Time Lag for Breakdown
  • Streamer Theory of Breakdown Gases
  • Townsend’s Mechanisms vs. Streamer Mechanisms
  • Post-Breakdown Current – Voltage Characteristics
  • Recovery of Electric Field Strength

Breakdown Characteristics of Gases under Uniform Field

  • Explanations on α and γ
  • Paschen’s Law
  • Minimum Breakdown Voltage
  • Effect of Temperature
  • De-Ionization
  • Desirable Properties of Gaseous Insulator
  • Sulphur Hexafluoride (SF6) As Insulator
  • Vacuum as Dielectric
  • Factors Affecting Time Lag For Breakdown
  • Breakdown in a Uniform AC Field
  • Breakdown under Impulse Voltage
  • Practical Breakdown Characteristics

Breakdown of Gases in a Non-Uniform Field

  • Breakdown of Gases in Uniform and Non-Uniform Fields
  • Degree of Non-Uniformity
  • Breakdown in Non-Uniform Field
  • Effect of Space Charge on the Breakdown Voltage
  • Effect of Pressure on Corona Inception and Breakdown Voltage
  • Corona Inception Stress in Air
  • Corona Current
  • Corona Loss in Air

Lightning Phenomenon

  • Defining Lightning
  • Charge Formation in Cloud
  • Different Form of Lightning
  • Cloud Flashes
  • Air Discharges
  • Forked Lightning or Lightning Stroke To Ground
  • Mechanism of Forked Lightning
  • Multiple Strokes
  • Return Stroke Current
  • Energy in Lightning


Breakdown in Liquids and Solids

  • Introduction
  • Breakdown in Liquids
  • Classification of Liquids
  • Liquid Breakdown Test Cells
  • Breakdown in Pure Liquids
  • Breakdown in Commercial Liquids
  • Breakdown in Solids
  • Intrinsic Breakdown
  • Electromechanical Breakdown
  • Thermal Breakdown
  • Mechanisms of Breakdown Occurring After Prolonged Operation
  • Breakdown of Composite Dielectrics

Generation of High Voltages

  • Introduction
  • Impulse Voltages
  • Characteristics
  • Single-Stage Impulse Generator Circuits
  • Multi-Stage Impulse Generators
  • Construction Features of Impulse Generators
  • Generation of Switching Impulse Voltages
  • Generation of High Alternating Voltages
  • Testing Transformers
  • Cascaded Transformers
  • Series Resonant Circuits
  • Generation of High Direct Voltages
  • Characteristics Parameters
  • Fundamentals of Rectifier Circuits
  • Voltage Double Circuit
  • Cascade Circuit
  • Van de Graff Generator

Measurement of High Voltage

  • Introduction
  • Measurement of High Alternating Voltages
  • Peak Voltage Measurement with Sphere-Gaps
  • Peak Voltage Measurement Using Measuring Capacitors
  • Peak Value Measurement with Capacitor Voltage Divider
  • Measurement of RMS Values by Electrostatic Voltmeters
  • Capacitance Voltage Transformer (CVT)
  • Digital Recording
  • Measuring of High Direct Voltages
  • Electrostatic Voltmeters
  • Generating Voltmeter
  • Sphere-Gap
  • Measurement of Ripple Voltages
  • Measurement of Impulse Voltages
  • Peak Value Measurement Using a Sphere-Gap
  • Voltage Dividers
  • Resistive Voltage Divider
  • Capacitance Voltage Dividers
  • Delay Cables
  • Measurement of Peak Voltage by an Indicating Electronic Device
  • Digital Records for Impulse Measurements

Overvoltage Transients in Power Systems

  • Basic Concepts of Transients
  • Classification of Power System Transients
  • Lightning Overvoltage
  • Interaction between Lightning and the Power System
  • Propagation of Lightning Current and Voltage along Transmission Lines
  •  Shape of Lightning Voltage Waves
  • Reflection and Refraction of Rectangular Travelling Waves
  • Successive Reflections
  • Ground Wires
  • Switching Overvoltages
  • Transient Initiated By the Clearing of a Fault
  • Switching Overvoltages Due To Disconnection of an Unloaded Transformer
  • Overvoltage Due To Capacitance Switching
  • Overvoltage Due To Ferro-Resonance
  • Power Frequency Overvoltages
  • Control of Overvoltages Due To Switching
  • Transformer Winding Behaviour under Transient Conditions
  • Protection of System Insulation against Transient Overvoltages
  • Insulation Coordination

High Voltage Testing of Power System Equipment

  • Introduction
  • Terms Used In Standards
  • High Voltage Tests on Line Insulators
  • Arrangement of Insulators for Test
  • Power Frequency Tests
  • Impulse Tests
  • Impulse Withstand Voltage Tests
  • Pollution Testing
  • High Voltage Test on Bushings
  • High Voltage Tests on Transformers
  • Induced and Applied Overvoltage Tests
  • Impulse Testing Of Transformers
  • Lightning Impulse Testing
  • Switching Impulse Tests
  • High Voltage Tests on Cables
  • Non-Destructive High Voltage Tests
  • Measurement Capacitance and Dissipation Factor
  • Partial Discharge Measurements
  • Tests on Lightning Arresters
  • Impulse Current Test