Assessment of the power quality in electrical networks

Get an overview of the technical terms, theoretical principles and guidelines behind the term "power quality".

You will also get an overview of the possible causes and effects of power quality problems and how to eliminate them.

In addition, you will learn in a didactic and practical way what you have to pay attention to when performing a power quality measurement, especially when measuring harmonics and interharmonics (from the measuring point to the evaluation of the data).

As far as the evaluation of the measurement data is concerned, you will receive a first working tool, which you can use for the evaluation of the data and the creation of reports, by means of ready-made Excel templates, which will be made available to the participants.

Your motivation

It is a well-known fact that the electrical power supply from low voltage to extra high voltage is subject to a number of changes nowadays. These changes are strongly related to an increase of power electronic equipment (LEA) in the grid, which can lead to the degradation of the power quality. For this reason, gaining expertise in power quality is essential for many companies.

  • Are you involved in projects related to power electronic equipment (drives, wind turbines, photovoltaic systems, HVDC, SVC, etc.) and do you have any points of contact with the topic of power quality?
  • Do you find it difficult to understand which standards and guidelines apply to your field of activity?
  • Are you looking for a training course that will teach you how to carry out an expert power quality assessment in a compact and clear form?

Then this training is the right choice for you!

Aims of the training

  • You will be familiarized with the terminology as well as the theoretical basics of power quality.
  • You will be able to look through the applicable standards and guidelines. Furthermore, you will get a first introduction to the most common standards and guidelines (IEC 61-000-4-30, IEC 61-000-4-7, IEC 61-000-3-6, EN 50160).
  • Get a good understanding of the role of instrument transformers or sensors in relation to power quality measurement through practical measurements and also learn how to characterize the frequency-dependent transformation ratio of transformers and sensors through appropriate measurement techniques.
  • Acquire knowledge of common commercially available power quality measurement devices at both the hardware and software levels and their technical specifications.
  • Be able to perform a power quality measurement. Be able to prepare the measurement setup properly. All necessary parameterizations of the measuring device can be carried out successfully.
  • Independently perform the basic evaluations necessary to prepare a report of a measurement of harmonics and interharmonics.

Training content

Day 1:

Training content

Day 2:

Module A:

Introduction to power quality

  • Theoretical basics and terms
  • Causes and effects of power quality problems
  • Overview of possible measures to eliminate power quality problems
  • Standards and guidelines(IEC 61-000-4-30, IEC 61-000-4-7, IEC 61-000-3-6, EN 50160)

Module B:

Role of instrument transformers or sensors on power quality measurement.

  • Introduction to transducer technology (inductive transducers, capacitive voltage dividers, RC dividers) with regard to the behavior of the frequency-dependent transformation ratio
  • Alternative sensors (Rogowski coils, feedthrough four-pole divider)
  • Characterization of the frequency-dependent transformation ratio on the basis of measurements.


Module C:

Introduction to power quality meters

  • Hardware versions of mobile and permanent measuring devices
  • Interpretation of the data sheet of a device
  • Familiarization with the most important software functions of a device


Module D:

Carrying out power quality measurements

  • Explanation of typical measurement setups
  • Practical measurement incl. wiring and parameterization of the device
  • Plausibility check and discussion of the measured values


Module E:

Evaluation of the measured data

  • Requirements for the evaluation of measurement data
  • Practical exercise: Carrying out an evaluation using an Excel template
  • Discussion of the results of the evaluation and preparation of a report


Previous knowledge:

Fundamentals of electrical engineering

Target group:

Specialized personnel from the field of power quality (measurement, evaluation). Addressed are employees working for power supply companies, service companies, manufacturers and in the industry and operators of power electronic systems (wind turbines, photovoltaic systems, HVDC, SVC, etc.).

Training duration:

2 days

Training location:



Dr. Juan Velásquez
(You can find the trainer's curriculum vitae at the bottom of this page).


5-6 September 2023


EUR 1.140,00
The price includes training materials, participant certificate, lunch, drinks during breaks and a common dinner on the first training day.

If you need overnight accommodation, we will be happy to help you find it.

Please register by mail or fax to:

Nadine Peters

Hubert Göbel GmbH

Siemensstraße 42

D-59199 Bönen

Tel. +49 2383 6189 694

Fax: +49 2383 6189 691

Mail: n.peters(at)hgmes.de

Internet: www.hgmes.de

Download of the Training brochure

Trainer of this training

Juan Velásquez studied electrical engineering in Venezuela. From 2002 to 2006, he worked as a maintenance and project engineer in the aluminum industry. From 2006 to 2008, he was involved in the implementation of monitoring systems of power transformers. From 2008 to 2011 he was a product manager for diagnostic solutions at OMICRON electronics. In 2011 he obtained his PhD in the field of monitoring and diagnostics of power transformers in Spain. From 2011 to 2016, Juan worked as an engineer for HVDC technology at Amprion GmbH. Since August 2016, he has been working at Hubert Göbel GmbH.