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Power Quality and Harmonics - Problems and Solutions

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6 hours

Power Quality and Harmonics Training - Our 6-hour live online instructor led course explains harmonic distortion and its various causes, identifies problems associated with harmonics and practical limits for harmonic distortion. The course teaches students the methods necessary to identify, reduce and to avoid power quality harmonics problems and how to predict estimated levels of harmonic distortion.

Several real-life examples are worked as a group to demonstrate the techniques used to perform basic harmonic analysis, evaluate alternative equipment and to quantify the expected results.

Upon completion of this course, students should have a meaningful understanding of harmonic voltage and current distortion, the impact that harmonics can have on electric power systems, the typical causes, simple methods to analyze harmonic distortion and methods to minimize harmonics.

This course is applicable to electrical industry professionals serving either industrial or commercial environments. For maximum benefit of this course, participants should have an understanding of basic electrical principles such as Ohms law, power, electrical metering, motors, and general electrical equipment and systems and a working knowledge of basic algebra.

Harmonic currents flow in a circuit at multiples of the fundamental 60 hertz (Hz) frequency. For example, current flowing in a circuit at 180 Hz is the third harmonic (60 Hz multiplied by 3). Such currents are not directly indicated on multimeters and are usually not found until unusual control and equipment problems begin to surface. Comparing the current readings from an average-responding meter to that of a good quality true-rms meter on the same circuit will help indicate harmonic issues. The average-responding meter will indicate only the 60 hertz current and the True RMS meter will indicate a combination of 60 hertz and harmonic currents. The production and reflection of these harmonic currents back into the electrical distribution system can cause problems.

Power Quality and Harmonics Training course will teach professional technicians and engineers how to isolate harmonic problems at their source and mitigate their effects by either replacing the offending item or installing harmonic filters.

 

Related Courses

Power Quality Analysis Training

Power Quality Troubleshooting and Problem Solving

Power Quality in Motor Control Applications

Power Factor Correction Training

Power Quality Considerations for Energy Efficiency Retrofits

 

 

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Who should attend

  • Industrial, Commercial, Institutional Electrical Engineers, And Electrical Maintenance Personnel
  • Consulting Electrical Engineers
  • Project Engineers
  • Design Engineers
  • Field Technicians
  • Electrical Technicians
  • Plant Operators
  • Plant Engineers
  • Electrical Supervisors
  • Managers In Charge Of Plant Electrical Infrastructure

 

What you will get

1
0.6 Continuing Education Unit (CEU) credits
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2
Power Quality and Harmonics - Problems and Solutions Certificate
Training Certificate
3
100-page Arc Flash/Electrical Safety Handbook (Value $20)
Electrical Safety Handbook
4
Free magazine subscription (Value $25)
Free Magazine Subscription
5
$50 coupon toward any future Electricity Forum event
Coupon
6
Course presentations in PDF format
Course Presentation

Power Quality and Harmonics Training Course Outline

 

Introduction

  • Reference materials
  • What is harmonic distortion?
  • Linear and non-linear loads
  • Voltage and current distortion
  • Harmonic spectrum
  • Total Harmonic Distortion

 

Causes of Harmonic Current Distortion

  • End-user equipment
  • AC to DC power conversion equipment
  • Block diagram for VFD or UPS
  • Types of Rectifiers
  • The sequence of harmonics by rectifier type
  • 6-pulse rectifiers
  • Typical 6-pulse rectifier harmonics
  • Effect of source impedance on 6-pulse rectifier current distortion
  • 12-pulse rectifiers
  • 18-pulse rectifiers

 

Problems caused by harmonics

  • Wasted energy, increased current & kVA
  • Equipment failure, Increased operating temperatures
  • Effects of harmonics on transformers
  • Effects of harmonics on capacitors
  • Fuse blowing, C.B. tripping
  • Communications equipment interference
  • Harmonic resonance (series & parallel)
  • Harmonic voltage distortion
  • Harmonic voltage distortion analysis
  • SCR voltage notching
  • The remedy for SCR voltage notching

 

IEEE Std 519 – Limits for Harmonic distortion

  • Voltage distortion limits
  • Current distortion limits
  • IEEE 519 definitions
  • Applying IEEE Std. 519
  • Voltage notching limits
  • Telephone interference

 

Remedies for harmonic distortion

  • Passive, multi-pulse and active filter techniques
  • Line reactors
  • Predicting harmonic currents for 6-pulse rectifiers
  • Harmonic cancellation transformers
  • Tuned harmonic filters
  • General rules for tuned filters
  • Wideband hybrid harmonic filters
  • Multi-pulse rectifiers and harmonics
  • Active harmonic filters
  • VFD with active front end

 

Harmonics for single phase equipment

  • Typical 1-phase non-linear loads
  • 1-phase rectifiers
  • Current waveforms
  • Typical harmonics and distortion
  • Unique problems with 3rd harmonic
  • Typical 1-phase remedies for harmonics

 

Wrap-up

  • Symptoms of harmonics
  • What to do if you suspect a harmonics problem
  • Avoiding harmonics problems

 

COURSE SCHEDULE:

Start: 10 a.m. Eastern Time
Finish: 4:30 p.m. Eastern Time

 

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Earn Continuing Education Unit (CEU) Credits

  • Successful completion of this course qualifies delegates to receive a certificate of course completion with indicated CEUs.
  • CEUs are granted by the Engineering Institute of Canada.
  • One CEU is equivalent to 10 professional development hours of instruction.
  • This course earns 0.6 CEUs.
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Register 3, Get 1 Free

Register 3 delegates at the full price of $249 each and get the 4th registration free! Perfect for companies, safety departments, and teams looking to train multiple employees at once.

1st $249
2nd $249
3rd $249
4th FREE

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