Power Quality Analyzers With Fault Recorder Function
Mobile Solutions
Power Quality Analyzer, Measurement Device and Fault Recorder in One
Products
NEW: Power Quality Services by A. Eberle
Power Quality
Services
Expert Knowledge That Moves You Forward
We offer you power quality audits with troubleshooting in accordance with EN 50160 and IEC 61000 and support you with our expert know-how. As the market leader in the field of mobile power quality devices, we can draw on a wide range of network analyzers with the appropriate accessories for our services.
Not Sure What Device Is the Right One for You?
Find the Right Power Quality Analyzer for Your Application
PQ-Box 50
PQ-Box 150
PQ-Box 200
PQ-Box 300
20,48 kHz
Sampling frequency voltage20,48 kHz
Sampling frequency current–
4 (16-bit)
Input voltage (resolution)4 (16-bit)
Input current (resolution)–
1 GB
Memory size•
WLAN1,5 h
Operating time via battery 20,48 kHz
Sampling frequency voltage20,48 kHz
Sampling frequency current–
4 (24-bit)
Input voltage (resolution)4 (24-bit)
Input current (resolution)–
4GB (32)
Memory size (optional)S1
WLAN4,0 h
Operating time via battery 40,96 kHz
Sampling frequency voltage40,96 kHz
Sampling frequency current4 MHz
Sampling frequency transient measurement4 (24-bit)
Input voltage (resolution)5 (24-bit)
Input current (resolution)•
Binary input8GB (32)
Memory size (optional)S1
WLAN4,0 h
Operating time via battery 40,96 kHz
Sampling frequency voltage40,96 kHz
Sampling frequency current409,60 kHz
Sampling frequency transient measurement4 (24-bit)
Input voltage (resolution)5 (24-bit)
Input current (resolution)•
Binary input8 GB (32)
Memory size (optional)S1
WLAN3,5 h
Operating time via battery
Extremely Robust and Reliable
The Power Network Analyzer
The PQ-Box family consists of powerful, portable network and power quality analyzers, power measurement devices and transient recorders.
During their development, user-friendliness and practical considerations were the key concern. To quickly locate the cause of network errors, the devices are fitted with a wide range of trigger options.
All mobile power quality devices fulfil the high demands of IP65 and can also be installed and used outside. They also have a large operating temperature range of – 20°C to + 60°C.
And they fulfil every requirement of the measurement devices standards IEC61000-4-30 Ed.3, IEC62586-1 and IEC62586-2 Ed.2 for class A devices.
WinPQ mobile
High-End Analysis Software
The purpose of the program is to prepare the archived power quality measurements and fault events from all PQ Boxes for the viewer and present them appropriately on the screen of the PC.
PQ-Box App
Easily Read out Power Quality Data From Your Tablet or Smartphone
The PQ-Box app enables wireless access to your PQ-Box via WLAN with visualisation and display of various live measurement data, including basic parameterisation of the device. In addition to an overview of the online data, the recorder and events, power and energy, pointer diagram, oscilloscope image and harmonics of the PQ Box can be viewed. Basic parameterisation of the device is also possible. The intuitive operation guarantees simple and mobile operation of your PQ box from A. Eberle.
The Right Box for Every Frequency
Our Mobile Power Quality Analyzers
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 and power to be controlled efficiently. These can lead to both line-bound and field-bound (coupled) influences in the energy grid.
Typical clock frequencies of systems and devices that we have to reckon with in our networks today:
- 4 kHz to 20 kHz: Frequency converter drive
- 16 kHz to 22 kHz: Solar inverter (400V)
- 2 kHz to 6 kHz: Wind power plant (medium voltage grid)
- 10 kHz to 80 kHz: E-mobile
- 8 kHz to 20 kHz: Active grid filter
- 15 kHz to 25 kHz: UPS systems
- 20 kHz to 200 kHz: Electronic ballast
- 30 kHz to 300 kHz: Switching power supplies
The power quality analyzers from A. Eberle have a high bandwidth which is free of aliasing effects up to 170 kHz (PQ Box-300).
These devices can be used to detect the mains feedback in the super-harmonic range of solar inverters, e-mobiles and frequency converters. The IEC61000-2-2 standard already offers compatibility levels for the public grid of up to 150 kHz. These limit values are already stored in our measurement technology.
News From the Productgroup
PQMobil – News
General Knowledge
Measuring the voltage drop
23. January 2025
The voltage drop is the difference between the voltage at the beginning and end of an electrical line. In an electrical network, the voltage can be reduced by the resistance and impedance of the lines,[…]
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Blogpost
PQ-Box User Training in Başiskele (Turkey) With Our Partner GENETEK Enerji Sistemleri Ltd.
11. December 2024
In August, we held a training course with our partner GENETEK Enerji Sistemleri Ltd for our portable PQ network analyzers in Turkey.[…]
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General Knowledge
Harmonics
17. September 2024
Harmonics are waves whose frequencies are an integer multiple higher or lower than those of the fundamental oscillations. They arise due to non-linear loads in the grid when the electrical voltage is distorted[…]
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Blogpost
International Partner Week 2024 – a Look Back
29. August 2024
Our International Partner Week 2024 – many old friends and new faces were our guests, it was a pleasure.[…]
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General Knowledge
Voltage Monitoring
1. July 2024
Find out everything you need to know about voltage monitoring in this article. What is voltage monitoring, why is voltage monitoring essential for both energy supply companies and industrial companies[…]
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General Knowledge
What Is Load Profile Measurement/Power Measurement?
25. June 2024
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[…]
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Special Publication
Ferrari´s Meter vs. Electronic Meter
9. April 2024
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[…]
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General Knowledge
Residual Current
6. March 2024
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
6. March 2024
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
6. March 2024
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[…]
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General Knowledge
What Is Apparent Power and How Is It Calculated?
6. March 2024
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[…]
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Special Publication
Angle Determination of Voltage and Current Harmonics in Practice
24. August 2023
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[…]
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General Knowledge
All „Supra“ With Your Grid?
23. May 2023
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[…]
Read more
General Knowledge
Power Quality Analysis: Tips and Tricks II
28. April 2023
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[…]
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General Knowledge
Power Quality Analysis: Tips and Tricks I
27. April 2023
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.[…]
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General Knowledge
Four Ways to Measure Current
26. April 2023
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[…]
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General Knowledge
Cos ϕ vs. Power Factor λ – Practice
25. April 2023
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,[…]
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General Knowledge
Cos ϕ vs. Power Factor λ – Theory
24. April 2023
This technical report discusses the distinction between power factor and cosine phi. Cosine Phi, formerly widely known as the ratio of active power to apparent power, however, has a different meaning for[…]
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Special Publication
Mains Feedback Interferes With Protective Devices
10. October 2022
In a photography and design studio, located in a large industrial park, a RCD tripped frequently. Due to the permanent power cuts, the employees of the studio could not work properly. This article shows[…]
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Special Publication
Creating Power Quality Surveys With PQ-Box and WinPQ Mobil Software
18. May 2022
The following report displays the PQ-Box and WinPQ mobil software interact to allow an evaluation of the disturbance levels at a measuring point according to approved grid norms.[…]
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