Introduction to Power Quality

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Course Description

The subject of Power Quality – the quality of current and voltage – deals with the quality of electrical energy. In recent years, we have become increasingly dependent on electricity. Power Quality is of strategic importance to continuity, reliability and energy efficiency. Today, electrical networks are affected by a variety of factors, which may lead to inferior electrical installation quality. As a result, many organizations are facing Power Quality problems.

Causes, risks and symptoms of poor Power Quality

There are several causes of poor Power Quality. The most common include replacing electrical equipment with modern electronics, or implementing modern equipment into existing electrical installations. Examples include replacing conventional lighting with LED lighting, installing solar panels, and placing inverters on electric motors. Modern electronics are sensitive to polluted and disrupted electricity, resulting in more disruptions, failures or malfunctioning, and a shortened lifespan of electronic equipment. 

Unnecessary costs, disruptions and energy losses

Poor Power Quality threatens the efficiency, continuity and safety of electrical installations. It increases the risk of malfunction and damage, which is associated with higher maintenance costs, and unnecessary energy losses. Poor quality of electricity can be experienced in the form of flashing lights or humming noises from the plant, but may also go unnoticed and eventually have costly consequences. Poor Power Quality may lead to shutdown of production, self-igniting cables and premature aging of the plant and electrical equipment.

In the course ‘Introduction to Power Quality’, you will learn about the responsibilities of network operators, manufacturers and end users in the field of electricity. In addition, subjects such as the quality of the supply voltage, voltage and current limits, and insight into the quality of the electrical energy, will be discussed.

What you will learn

  • The concept of Power Quality and key definitions
  • All aspects of the quality of the electricity supply
  • Classification of Power Quality phenomena according to type
  • Understanding of common continuous Power Quality phenomena
  • Understanding of common event Power Quality phenomena
  • Costs of bad Power Quality in an installation
  • Examples of installation damage caused by poor Power Quality
  • Responsibilities for a good Power Quality. Parties involved.
  • Standards classification according to limit type
  • Insight into the European EN50160 standard. Current discussion points (possible future changes)
  • Limits for current depending on the device type
  • Limits at point of connection
  • Power Quality research status 

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