Power System Quality, Harmonics and Interruptions Course

Course Overview:

This course focuses on power quality issues, harmonics, and their consequences for electrical power systems. Students will be exposed to harmonic generation, voltage disturbances, and system power factor, as well as harmonic mitigation measures and filter design.

The course covers the influence of harmonics on various equipment, including generators, transformers, motors, and UPS devices as well as gas-insulated switchgear GIS operation and protection principles. 

It is aimed at professionals of different experience levels in the electrical power industry and empowers engineers, supervisors, and designers with the right set of skills for the thorough analysis, improvement, and maintenance of power quality.

Course Objectives:

By the end of the training, participants will be able to:

• Understand the Various Types of Power Quality Issues
• Understand the types of Power Quality issues and Harmonics
• Understand the Effects of Harmonics
• Determine the causes of WaveForm Distortion
• Understand the Harmonics and System Power Factor
• Determine the effects of Harmonics, Filters, and K-factor
• Analyze the Common Voltage Disturbances
• Design the Protection of Gas Insulated Switchgear Substations
• Operation Principle and Construction of Gas Insulated Switchgears

Who Should Attend?

This course is intended for all levels of professionals in an Electrical Power System. also, will be a benefit for Electrical Engineer, Supervisor, Professional Power System Engineers, Designers, Superintendent, and Industrial Engineers.

Course Outlines:

 Introduction

• Power Quality and Harmonics
• Overview of Power Quality
• Need for Improving Power Quality
• Effects of Disturbances on Equipment
• Sources of Harmonics, Symptoms
• Harmonic Limitations (IEEE Standard 519)
• Series Resonance, Filter Design
• Third Harmonic, Neutral Current
• Production of Harmonics
• Production of Harmonics
• Characteristic Harmonic Currents
• Effect of Harmonic Currents on Impedance
• Calculation of Voltage Distortion
• Harmonic Sequence Components
• Line Notching
• Interharmonics
• Subharmonics

Effects of Harmonics

• Generators
• Transformers
• Induction Motors
• Variable Speed Drives
• Uninterruptible Power Supplies (UPS)
• Computers and Computer-Based Equipment
• Cables, Circuit Breakers
• Relays, Capacitors

• Sources of Harmonics
• Single-Phase Nonlinear Loads
• Single-Phase Nonlinear Loads
• Three-phase Nonlinear Loads
• Additional Three-Phase Sources of Harmonics

Harmonics and System Power Factor

• Power Factor in Systems with Linear Loads Only
• Power Factor in Power System with Harmonics
• How the Mitigation of Harmonics Improves True Power
• Factor in Power System Network

• Total Harmonic Distortion & Effects
• Introduction
• Total Harmonic Voltage Distortion (V THD)
• Total Harmonic Current Distortion (I THD)
• Importance of Mitigating THD

• Associated Power Technology

Effect of Unbalance and Voltage Distortion

• Balanced Systems
• Unbalanced Systems

• Effect of Unbalance and Voltage Distortion
• Balanced Systems
• Unbalanced Systems
• Voltage Unbalance
• Effect of Unbalanced Loading on Machine  
• Effect of unbalanced Loading on Harmonics
• Voltage Unbalance and Multi-Pulse Drives
• Background Voltage Distortion
• The Effect of Voltage Unbalance

Mitigation of Harmonics

• Effect of Phase Diversity on Harmonic Currents
• Effect of Linear Load on Harmonic Currents
• Three-wire Single-phase Systems
• Four-wire Single-phase Systems
• Standard Reactors for Three-phase AC and DC Drives
• AC Line Reactors for DC SCR Drives
• AC Drives with SCR Input Rectifiers
• Special Reactors for Three-phase AC and DC Drives
• Passive L-C Filters
• Transformer Phase Shifting (Multi-Pulsing)
• Transformer Phase Staggering (Quasi Multi-Pulse)

• Harmonic Surveys and Measurement
• Safety Precautions during Harmonic Surveys
• Planning the Harmonic Survey or Measurements
• Information to be recorded from Measurements
• Harmonic Analyzers