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.

Further questions or want to start an enquiry? Please click “Product Enquiry”.

PQI-D

Instruction Manual
Technical Data Sheets
Certificates
Firmware
PQ Para Express

Accessories

I-Sense: Current Feeder Measurement
Mounting Panel
Rogowski Coil
Current clamp
Divisible differential current transformer
GPS Receiver set

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).

power-quality-interface-power-quality-erdschluss-messgerät

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.

power-quality-interface

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
power-quality-interface

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.

Do you have questions about
the PQI-D measuring device?

Our specialists will be happy to help you!


Contact us

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.

News from the Productgroup

PQSys – News

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[…]

Read more

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[…]

Read more

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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Special Publication

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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Special Publication

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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Info letter

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

7. September 2021

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

7. September 2021

For the parallel connection of power sources, the principle of superposition applies, when all resources…[…]

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