The topic of power quality is rapidly gaining importance in the context of the energy transition and smart grids and smart metering. As a result, the question marks of the supposedly affected and involved parties are piling up to the same extent. What does this mean for the distribution grid operator, the authorities, the industrial companies, the electrical inspectors, the electrical contractors, the professional associations, the infrastructure companies such as airports, railways, etc.?
Bringing more light into the dark
For stakeholders, whether already familiar with the topic of power quality today or not, the new Read more
https://i0.wp.com/pq-as-a-service.com/wp-content/uploads/2020/11/xxxx-1.png?fit=2704%2C1069&ssl=110692704Sascha Engelhttps://pq-as-a-service.com/wp-content/uploads/2025/08/Icon_PQ_knowledge.jpgSascha Engel2020-11-13 15:03:012021-01-26 15:19:29PQaaS: The Power Quality as a Service website goes live
Including differential current monitor and certified consumption values
Initial situation
The topic of power quality (also known as PQ) now has many facets. In this way, not only the actual phenomena of power quality according to the standardisation of electromagnetic compatibility (EMC) according to IEC 61000-x-x are considered. Rather, other important parameters are being added all the time to support security of supply, and in some cases even legal certainty on the consumer side. Increasingly, this also includes consumption values, which are relevant for reducing CO2 emissions to a more climate-friendly level. In combination and as a minimum, however, all of the above criteria require a solid measurement as a basis.
Problems
Accuracy of the measurement questioned
Measuring instruments are usually classified according to standards and accuracy. Accuracy is an important indicator for being able to usefully build on a solid measurement result in the analysis and its resulting measures. However, it can be observed that although the measuring devices used correspond to a required accuracy class, the necessary sensors are often less in focus.
It can be seen that although class A measuring devices used in power quality applications correspond to a data sheet accuracy of 0.1 % for U/I and 0.2S at the energy meter, upstream current transformers are often designed significantly worse (e.g. 0.5 % or worse). In addition, the question arises under which criteria the energy measurement is referenced in order to comply with the above-mentioned accuracy class 0.2S at all. And this is apart from the fact that not only accuracy plays a role in power quality measurements, but also the inevitable compatibility against harmonics – one of the modern and growing main players in power quality.
No external software is required for the parameterisation of the unit or the evaluation of the measurement results. The web interface provides all the necessary functions. These can be accessed via end devices such as smartphones, tablets, laptops, desktops and servers via the LAN or WLAN interface using an IP address.
https://pq-as-a-service.com/wp-content/uploads/2025/08/Icon_PQ_knowledge.jpg00Sascha Engelhttps://pq-as-a-service.com/wp-content/uploads/2025/08/Icon_PQ_knowledge.jpgSascha Engel2020-10-15 14:07:562021-01-26 15:15:54Efficient use of an integrated web browser function
Especially during mobile measurements of power quality, it can happen that the mains voltage is briefly interrupted. Consequently, all power quality analysis units of the LINAX PQ series are now optionally equipped with a UPS and can easily withstand a power failure of 5×3 minutes.
With the “PQ-Easy Report”, statistical reports can be generated directly from the measuring instrument, either according to standard or also user-specific. And this completely autonomously and detached from proprietary software solutions that make life difficult for many users as well as the IT department.
https://pq-as-a-service.com/wp-content/uploads/2025/08/Icon_PQ_knowledge.jpg00Marius Furrerhttps://pq-as-a-service.com/wp-content/uploads/2025/08/Icon_PQ_knowledge.jpgMarius Furrer2020-09-17 14:10:392021-01-26 15:22:32PQ Easy Report – Conformity reports at the touch of a button
Um ein optimales Erlebnis zu bieten, verwenden wir Technologien wie Cookies, um Geräteinformationen zu speichern und/oder darauf zuzugreifen. Wenn die Zustimmung nicht erteilt oder zurückzieht, können bestimmte Merkmale und Funktionen beeinträchtigt werden.
Funktional
Always active
Die technische Speicherung oder der Zugang ist unbedingt erforderlich für den rechtmäßigen Zweck, die Nutzung eines bestimmten Dienstes zu ermöglichen, der vom Teilnehmer oder Nutzer ausdrücklich gewünscht wird, oder für den alleinigen Zweck, die Übertragung einer Nachricht über ein elektronisches Kommunikationsnetz durchzuführen.
Preferences
The technical storage or access is necessary for the legitimate purpose of storing preferences that are not requested by the subscriber or user.
Statistiken
Die technische Speicherung oder der Zugriff, der ausschließlich zu statistischen Zwecken erfolgt.The technical storage or access that is used exclusively for anonymous statistical purposes. Without a subpoena, voluntary compliance on the part of your Internet Service Provider, or additional records from a third party, information stored or retrieved for this purpose alone cannot usually be used to identify you.
Marketing
Die technische Speicherung oder der Zugriff ist erforderlich, um Nutzerprofile zu erstellen, um Werbung zu versenden oder um den Nutzer auf einer Website oder über mehrere Websites hinweg zu ähnlichen Marketingzwecken zu verfolgen.
The topic of power quality is rapidly gaining importance in the context of the energy transition and smart grids and smart metering. As a result, the question marks of the supposedly affected and involved parties are piling up to the same extent. What does this mean for the distribution grid operator, the authorities, the industrial companies, the electrical inspectors, the electrical contractors, the professional associations, the infrastructure companies such as airports, railways, etc.?