Introduction:
This training course explores the topic of power quality and its effects on the reliability of the electrical system. Power quality is first precisely defined, because, without a precise definition, measurements of baseline conditions and assessments of improvement are impossible. Then methods of evaluating reliability are investigated. After completing this course, you will have a thorough understanding of how power quality and reliability can be measured, and how changes made to the electrical system will affect these important properties
Targeted Groups:
- Engineers and technicians new to the power industry
- Intermediate-level engineers and technicians who seek to improve system reliability
- Professionals involved with the assessment of power quality
- Facility engineers and consultants responsible for mitigating power quality issues
- Engineers tasked with monitoring system performance and reliability
Course Objectives:
At the end of this course the participants will be able to:
- Understand common power quality and reliability terms
- Know how to assess the impact of voltage sags on sensitive electrical equipment
- Comprehend the influence of fault clearing on voltage stability
- Calculate and use standardized reliability indices
- Understand the sources of transient overvoltages and be able to specify arresters
- Know why harmonics are produced and be able to implement mitigation methods
- Analyze the components of AC power and understand the relationship with voltage regulation
Targeted Competencies:
- Basic terminology and definitions
- Voltage sags and interruptions
- Effects of fault clearing on voltage
- Reliability indices
- Transient overvoltages and arresters
- Understanding and mitigating harmonics
- Analysis of AC power and steady-state voltage regulation
Course Content:
Unit 1: Introduction, Voltage Sags and Interruptions:
- Power quality definition and basics
- Quantifying power quality
- ITI curve
- Causes of voltage sags
- Causes of interruptions
- Mitigation methods
Unit 2: Transient Voltage Excursions:
- Motor starting
- Switching and traveling waves
- Capacitor switching
- Lightning
- Lightning shielding and grounding
- Ferroresonance
Unit 3: Reliability Indices, Effects of Fault Clearing on Power Quality:
- IEEE-defined reliability indices
- Interpreting reliability indices
- Fault clearing
- Reclosing strategies
- Fuse saving philosophy
- Fuse blowing philosophy
Unit 4: Insulation Coordination, Arresters, and Steady-State Voltage Regulation:
- Basic impulse level
- Insulation systems
- Insulation testing
- Arrester selection and application
- Load tap changers and voltage regulators
- Effects of steady-state voltage on system operation
Unit 5: Harmonics:
- Fundamentals of harmonics
- Causes and effects of harmonics
- AC power and power factor
- Mitigating harmonic effects
- K-factor transformers
- Harmonic filters
