Power System Quality, Harmonics and Interruptions

Start Date End Date Venue Fees (US $)
30 Nov 2025 Abu Dhabi, UAE $ 3,900 Register

Power System Quality, Harmonics and Interruptions

Introduction

Over recent years, there has been a significant increase in the installation and use of power electronic equipment onboard ships and on offshore installations. The operation of this equipment has in many cases significantly degraded the ship or offshore installation electrical power quality to such an extent that measures have to be implemented in order to minimize the resultant adverse effects on the electrical plant and equipment.

The quality and security of voltage supplies are important to the safety of any vessel and its crew and to the protection of the marine environment. Any failure or malfunction of equipment such as propulsion or navigation systems can result in an accident at sea or close inshore with serious consequences. Many power quality issues are transient, for example, the starting of a large electric thruster motor resulting in a momentary dip before the generator regulators correct the situation and reinstate the correct level of voltage and frequency.

This intensive training focuses mainly on the effects and presence of harmonics in the power system, with reference to auxiliary equipment such as variable speed drives, uninterruptible power supplies, and others. When more electronic devices are connected to our power systems, the ‘quality’ of power becomes more important. Stable voltages and undistorted waveforms are two characteristics that are very desirable. Grounding affects voltage stability, and more importantly, is critical to personal safety. Harmonics distortions will result in nuisance tripping of electrical systems.

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
    • Identify the Various Types of Waveforms
    • Mitigation of Harmonics and K-Factor

Training Methodology

This is an interactive course. There will be open question and answer sessions, regular group exercises and activities, videos, case studies, and presentations on best practice. Participants will have the opportunity to share with the facilitator and other participants on what works well and not so well for them, as well as work on issues from their own organizations. The online course is conducted online using MS-Teams/ClickMeeting.

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 Outline

Day 1: Introduction

  • Module (01): 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
  • Module (02): 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

Day 2:  Module (03): Effects of Harmonics

  • Generators
  • Transformers
  • Induction Motors
  • Variable Speed Drives
  • Uninterruptible Power Supplies (UPS)
  • Computers and Computer-Based Equipment
  • Cables, Circuit Breakers
  • Relays, Capacitors
  • Module (04): Sources of Harmonics
    • Single-Phase Nonlinear Loads
    • Single-Phase Nonlinear Loads
    • Three-phase Nonlinear Loads
    • Additional Three-Phase Sources of Harmonics

Day 3: Module (05): 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
  • Module (06): Total Harmonic Distortion & Effects
    • Introduction
    • Total Harmonic Voltage Distortion (V THD)
    • Total Harmonic Current Distortion (I THD)
    • Importance of Mitigating THD
  • Associated Power Technology

Day 4:  Module (07): Effect of Unbalance and Voltage Distortion

  • Balanced Systems
  • Unbalanced Systems
  • Module (08): 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

Day 5:  Module (09): 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)
  • Module (10): Harmonic Surveys and Measurement
    • Safety Precautions during Harmonic Surveys
    • Planning the Harmonic Survey or Measurements
    • Information to be recorded from Measurements
    • Harmonic Analyzers

Accreditation

Related Courses

Competency Solutions Brochure
PETC Corporate Profile