The Flexible Power Quality Interface
PQI-D
Carry out all measurement tasks with a single device.
PQI-D
The PQI-D power quality interface for low, medium and high-voltage networks is the central component of a system allowing all measurement tasks in electrical networks to be carried out. Our 19″ device is impressively flexible and can be both wall-mounted and installed in a control panel.
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Cross-product downloads
Cross-product downloads
Special Publications
Flyer
Product overview A. Eberle
PQI-D
PQI-D
Instruction Manual
Technical Data Sheets
Certificates
Firmware
DSP-100 MHz
DSP-200 MHz
Accessories
Accessories
I-Sense: Current Feeder Measurement
Technical Data Sheets
Instruction Manual
I-Sense Flyer
Mounting Panel
Rogowski Coil
Current clamp
Divisible differential current transformer
Record fault events quickly and easily
The power quality interface PQI-D records fault events at 96 μs sampling values and at a length (preceding and subsequent history of the event) that can be freely selected. Fault events are also recorded composed of the effective values of half period values (10 ms).
Available for wall assembly, control panel installation and as a 19″ plug-in unit
The PQI-D can come in various different sizes. It can be supplied as a 19″ plug-in card, with a wall-mounted housing, for insertion in a control panel or with a 19″ frame.
Record breaches of harmonic limits
When a limit (harmonic or voltage THD) is exceeded, the power quality interface records the spectrum of all harmonics from the 2nd to the 50th harmonic. The broad spectrum of harmonics recorded allows the user to carry out well-founded analysis.
All the standards and protocols upheld – making our products fit for the future
- EC 61010-1 / DIN EN 61010-1
- IEC 60255-22-1 / DIN EN 60255-22-1
- IEC 61326-1 / DIN EN 61326-1
- IEC 60529 / DIN EN 60529
- IEC 60068-1 / DIN EN 60068-1
- IEC 60688 / DIN EN 60688
- IEC 61000-6-2 / DIN EN 61000-6-2
- IEC 61000-6-4 / DIN EN 61000-6-4
- IEC 61000-6-5 / DIN EN 61000-6-5
The right interface for every application
Our power quality interface has two RS 232 interfaces (COM 1 and COM 2), an RS 485 bus interface (COM 3), two interfaces each of the system and transport bus E-LAN and 2x RS 485 time and trigger bus. This device is thus certain to have the right interface for every application.
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the PQI-D measuring device?
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WinPQ
The suitable Software offers the user more reasons, to use the PQI-D
The WinPQ system solution for all built-in A. Eberle fault recorders, power quality monitoring devices and mobile network analyzers. Monitor power quality permanently – from the high-voltage grid to the end-user in a system. Intuitive operation despite the vast amount of data handled.
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News from the Productgroup
PQSys – News
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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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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General Knowledge
Ready for the smart grid of the future?
6. March 2024
All information about smart grids/intelligent power grids, the technology behind them, advantages, disadvantages, challenges and current distribution.[…]
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Product innovation
Product announcement: »I-Sense« for feeder current measurement in future-proof secondary substations available as of 15/09/2023
16. October 2023
»I-Sense« Feeder Current Measurement for up to 16 feeders. Available to order now.[…]
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Product innovation
Product discontinuation: Power Quality Analyser PQI-DA, as of 09.08.2023
9. August 2023
Power Quality Analyser PQI-DA is currently scheduled for product discontinuation.[…]
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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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Special Publication
Innovative & economical “system solutions” in the age of energy grid transformation
2. February 2023
The transformation of the energy industry from a centralized structure to a decentralized energy supply is creating complex energy networks with volatile load flows and changing load flow directions. Grid[…]
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Blogpost
DAKKS Calibration Report: PQI-DE & PQI-DA Smart With Sensational Results
11. August 2022
In the DAKKS calibration according to VDE-AR 4110 Annex F, our power quality analyzers PQI-DE & PQI-DA smart have achieved sensational accuracy values.[…]
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Special Publication
Measurement of voltage distortions in industrial grids with the PQ-Box 50
14. April 2022
It is important to find disturbances in the system in a fast and reliable way. This report shows an example for trouble shooting with the Power Quality analyzer PQ-Box 50. […]
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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
18. January 2022
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
7. September 2021
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
7. September 2021
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
7. September 2021
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
7. September 2021
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
7. September 2021
The range of electromechanical and electronic measuring devices in analog – and digital technology…[…]
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