Power System Harmonics, Earthing and Power Quality Course

Course Overview:

This course offers an in-depth understanding of power quality and harmonic management in an electrical or electronic setting. Following this course, participants will be equipped with the required abilities to comprehend earthling principles, surges and transients protection, and voltage fluctuations, harmonics and surges minimization techniques.

The scope of the course includes the methods of identification and elimination of issues related to the quality of power and practical recommendations concerning the design and installation of the power systems. 

This course will focus on power quality control through case assignment and field work alongside site evaluation for engineers and specialists dealing with control, instrumentation, and power systems.

Course Objectives:

• Develop a sound working knowledge of earthling and harmonics
• Do a step-by-step site analysis on power quality and harmonics
• Gain practical knowledge on surge and transient protection
• Design electrical and electronic systems correctly by applying knowledge of harmonics and earthling Principles
• Distinguish between harmonics and transients and how to minimize them
• Troubleshoot electrical and electronic systems for power quality and harmonic problems
• Isolate and rectify power quality and harmonic problems
• Network with your peers on solving these problems

Who Should Attend?

• Instrumentation and Control Engineers
• Consulting Engineers
• Electrical Engineers
• Project Engineers
• Maintenance Engineers
• Power System Protection and
• Control Engineers

Course Outlines:

 Power Quality Overview

• Limits on electrical parameters
• What is power quality?
• Power quality indicators
• Power quality problems and solutions

Dealing with Power Interruptions

• Needs of equipment
• Understanding failures
• Effect of power interruptions
• Planning for reliability
• Redundancy and automation       
• Uninterrupted power supply systems
• Rotary UPS systems
• Advanced rotary UPS systems
• Hybrid UPS system
• Static UPS systems
• General configuration
• Types of static UPS systems
• Power quality and UPS
• UPS applications to computer loads
• Redundant UPS configuration

Voltage Variations            

• Variations in voltage amplitude
• Reasons for voltage amplitude changes
• Voltage Sag
• Effects of sags
• Swell and its effects
• Equipment sensitivity
• Handling voltage abnormalities
• Control measures for mitigation
• System changes for voltage improvements
• Tackling voltage fluctuations and flicker

Surges and Surge Protection

• Surges, their causes and mitigation
• Lightning-the external source of electrical surges
• How surges find their way into electrical circuits
• Bonding of grounding systems as a means of surge mitigation
• Basic principle of surge protection
• Surge Protection Devices
• Graded Surge protection
• Selection criteria of devices for surge protection
• Positioning and Selection of lightning/surge arrestor
• Surge protection of sensitive circuits
•  Hybrid SPDs for signal applications
•  Protection of Instrumentation systems
• Surge Protection of Transmitters (General)
• Surge Protection of Transmitters at the Field End
• Comprehensive Loop Protection
• Protection of telemetry and Data Communication Systems
• SPD for Hazardous Applications
• Grounding of Intrinsically Safe circuits

Voltage Asymmetry

• Reasons for asymmetry
• Analysis of asymmetrical quantities
• Effects of asymmetry
• Permissible limits of asymmetry
• Dealing with asymmetrical loads

Harmonics in Power Systems

• Linear and non-linear loads
• Harmonic components
• Harmonic currents and voltage distortion
• Problems due to harmonics
• Limits of harmonic presence in a power system
• Measurement of current containing harmonics
• Analysis of harmonic components
• Methods of harmonic control

Electrical Noise and Mitigation

• Definition of electrical noise
• How are sensitive circuits affected by noise?
• Time and frequency domain representation of noise
• Categories of noise
• Noise from nearby electrical equipment
• Ground Loop as a source of noise
• Control of noise in signal cables
• Electrostatic or capacitive coupling
• Importance of grounding in noise control
• Zero signal reference grid and signal transport ground plane

System Planning and Installation Guidelines

• Power interruptions
• Issues of location
• Commercial power
• Information from equipment vendors
• Power requirements and available power conditioning options
• Noise suppression sensitive loads by proper grounding
• Checking for redundancy requirement
• Signal/data cabling susceptibility
• Radio Frequency Interference (RFI) protection
• Static electricity related problems
• Lightning and surge protection
• Documentation
• Planned maintenance

Survey of Power Quality Problems and Solutions

• Problems normally experienced
• Solutions normally adopted

Power Quality Site Study

• Site study objectives
• Defining the problem
• Coordination with other agencies
• Conducting the study
• Level 1 study
• Level 2 study
• List of instruments

Case Studies

Summary, Open Forum & Closing