Objectives
Review of theory and fundamentals of power system harmonics

Discussion of total harmonic distortion and notching

Discussion of common symptoms of harmonics in a power
system such as transformer heating, motor and generator
heating and vibrations, neutral heating and electronic
equipment malfunction

Review of non-linear loads and common sources of harmonics
within electrical distribution systems 

Overview of the background and application of
IEEE Std 519-1992

Presentation of several practical examples of performing
harmonic measurements

Presentation of several class examples that will help students
gain a basic understanding of how to perform a
harmonic analysis

Discuss issues and examine study results, potential problem
areas and implementation of study recommendations using
common harmonic mitigating techniques.

Prerequisites Basic computer skills

SKM Power*Tools Standard 3-Day and Advanced 2-Day
Training OR working knowledge of SKM PTW Software

Students are urged to review:
• IEEE Brown Book Std 399 - 1997, chapter 6 and 10
• IEEE Red Book Std 141-1993, chapters 8 and 9
• IEEE 519 - 1992, “IEEE Recommended Practices and
Requirements for Harmonic Control in Electrical
Power Systems”

Course DescriptionThis course involves the application of the Power*Tools program to analyze a sample AC electrical distribution system containing various types of harmonic sources. Harmonic analysis of the distribution system will be reviewed and then performed using the software. Students will earn 1.6 CEUs for this 2-day course.

Target AudienceThis course is intended for electric power engineers responsible for the design and analysis of alternating current electrical power distribution systems. A basic understanding of electrical distribution system analysis is required.

Typical Industrial and Commercial Power System Example Review of harmonic analysis and IEEE 519-1992 distortion limits Data gathering and input data requirements for harmonic analysis  Examination and interpretation of PTW study results and potential problem areas in the power system Discussion of methods and procedures for completing a typical study Discussion of final presentation of study reports Discussion of compliance with various standards and requirements

Hands-On Lab - Analysis of a Sample Electrical Distribution System in PTW Interpretation of Equipment datasheets Perform measurements to establish harmonic current source models for harmonic producing loads Data gathering, data input and system modeling Review of harmonic analyzer capabilities best suited for such measurements Exposure to load flow analysis to the extent to establish a 60 Hz base case for the harmonic analysis Building harmonic current sources for loads and establishing the base case harmonic load flow Choice of the Point of Common Coupling (PCC) and how to conduct IEEE Std. 519-1992 analysis at the PCC Sizing a power factor correction capacitor bank and use of frequency scans to determine if it should be a filter Filter design and use of IEEE Std. 18 to rate the capacitor in the filter bank Discussion of study results and methods to improve (reduce) harmonic distortion