»PQMobil« Training Video 2

Menu Navigation and Operation of the PQ-Box

In this short introductory video, we present to you the navigation and operation of our portable power quality analyser »PQ-Box 150« of the PQ-Box family. The user interface of the »PQ-Box 150« is identical to that of the models »PQ-Box 200« and »PQ-Box 300«. Special attention has been paid to a user-friendly design of the menu navigation to ensure that users can quickly get comfortable using the PQ-Box.

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PQMobil - News

General Knowledge

What Is Load Profile Measurement/Power Measurement?

This article explains the definition and difference between load profile measurement (RLM), power measurement and measuring the standard load profile. These are important methods for accurately recording energy consumption in commercial, large industrial plant as well as in the public energy grid.

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Training Video

»PQMobil« Training Video 4: Create and Configure PQ Reports With Software WinPQ mobil

This video explains everything about creating and configuring power quality reports with »WinPQ mobil«.

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Training Video

»PQMobil« Training Video 3: Usability & Functions of the PQ-Box App

This video gives you an introduction to the usability and functions of the »PQ-Box App« for our portable power quality analysers.

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Training Video

»PQMobil« Training Video 1: Getting Started with the PQ-Box

This video shows in detail how to connect the »PQ-Box« and record measurements. The »WinPQ mobil« software is then used to visualize and analyse the measurement data and create a report.

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General Knowledge

Residual current

In this article, you will learn about residual current measurement & residual current monitoring and why it is important to measure residual current.

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General Knowledge

Power Quality

Good power quality is characterized by the fact that the mains voltage actually arriving at the consumer matches the mains voltage promised by the utility company.

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General Knowledge

Reactive power – definition, calculation and measurement

The key role of reactive power in electrical engineering: definition, calculation, measurement and the differences to active power and apparent power. Find out how reactive power influences the efficiency of electricity grids and shapes energy transmission.

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General Knowledge

What is apparent power and how is it calculated?

This article addresses the question of what apparent power is and how to calculate it. An understanding of apparent power is crucial for the correct dimensioning of inverters and therefore for the optimum efficiency and performance of photovoltaic systems.

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Info letter

Information Letter No. 24: Integration guide for the metering of a power plant according to the Requirements for Generators (2016/631) RfG

Integration guide for the measurement of a power plant (EZA) according to VDE-AR 4110 and VDE-AR 4120.

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Info letter

Info Letter No. 23: Direction of harmonics Sources of harmonics in the power system

Le sens du flux de puissance des harmoniques est déterminé par le signe de la puissance activ

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Info letter

Info Letter No. 22: Definition of power measurements according to the standards DIN 40110-2 and IEEE 1459

There is a wide range of electronic measuring devices for the digital measurement of power...

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Info letter

Info Letter No. 20: Capacitance of conductors

In the conductors of electrical power supplies, a distinction is made between the operating capacitance...

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Info letter

Info Letter No. 19: The evaluation of power quality and detection of interference in medium voltage network

For various reasons, interest in the continuous monitoring of network quality in medium-voltage...

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Info letter

Info Letter No. 8: Apparent power and reactive power in three-phase networks

The range of electromechanical and electronic measuring devices in analog - and digital technology...

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Info letter

Info Letter No. 5: Zero sequence voltage in three-phase networks

With balanced network operation and inequality of the impedances in the consumer circuit, the phase...

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Info letter

Info Letter No. 4: Summation of Alternating Currents

For the parallel connection of power sources, the principle of superposition applies, when all resources...

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Info letter

Info Letter No. 2: Measurement Transformers in three-phase networks (Part 2)

In a symmetrically loaded three-wire three-phase network, a two-pole insulated voltage transformer...

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Info letter

Info Letter No. 1: Measurement Transformers in three-phase networks (Part 1)

The direct connection of measuring devices into the network is limited for safety reasons to values...

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Special Publication

Ferrari´s Meter vs. Electronic Meter

This technical report analyzes a power measurement at a large industrial customer. The customer records very high currents and fifth harmonic voltages during production time, which leads to poor voltage quality.

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Special Publication

Angle determination of voltage and current harmonics in practice

Today's devices and equipment such as switched-mode power supplies, frequency converters, regulated drives, charging devices for e-mobiles or LED lighting work internally with high clock frequencies in order to regulate power efficiently. These can lead to both conducted and field-bound (coupled) influences in the energy grid. In this technical report, we explain how you can detect these sources of interference in the grid using suitable measuring technology.

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Special Publication

All „Supra“ with your grid?

Today's devices and equipment such as switched-mode power supplies, frequency converters, controlled drives, charging devices for e-mobiles or LED lighting work internally with high clock frequencies in order to regulate power efficiently. These can lead to line-borne as well as field-borne (coupled) interference in the power grid. In this technical report, we explain how you can detect these sources of interference in the grid using suitable measurement technology.

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Special Publication

Power Quality Analysis: Tips and Tricks II

Useful tips & tricks for handling Power Quality measuring devices and typical user errors - now in our two-part article! This article provides further insights and practical tips and application examples for power quality analysis.

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Special Publication

Power Quality Analysis: Tips and Tricks I

Useful tips & tricks for handling Power Quality measuring devices and typical user errors - now in our two-part article! This article explains tips and tricks for performing power quality measurements. It explains which connection errors can be made and which preliminary considerations should be made before using a measuring device.

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Special Publication

Four ways to measure current

The following technical report examines various methods for measuring current. It discusses how currents are measured using power analyzers and current clamps. The respective advantages and disadvantages of different technologies such as shunts, normal current clamps, hall effect sensors, etc. ar also evaluated.

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Special Publication

Cos ϕ vs. power factor λ – Practice

This second technical report on the subject of reactive power and in particular the distortion reactive power supplements the first contribution "Cos ϕ vs. power factor λ – Theory". In this article, the voltage and current of an incandescent lamp are measured in an online measurement using a power analyzer.

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