For the structured analysis of faults in the power grid and network, and for the objective assessment of short-term events. Supports operations, engineering and service teams by providing reliable data for decision-making and documentation.

Typical applications:

  • Investigating recurring issues where the cause is unclear or disputed
  • Identifying the cause following outages, malfunctions or quality complaints
  • Traceable recording of short-term events for internal clarification and evidence
  • Documentation of conditions before and after changes to the power grid and network

This device is suitable if:

  • Faults need to be conclusively proven rather than merely suspected
  • The timing and cause of anomalies need to be clearly identified
  • Measurement data is required for internal decision-making or for use with third parties
  • Continuous recording is required rather than a one-off analysis

Many Functions United in a Single Device

PQI-DE

The PQI-DE is a energy logger, power quality measurement device, fault recorder and residual current measurement device all in one. The device combines numerous functions. It can be used as a power quality interface to fulfil network quality standards or to check the technical connection guideline. It also offers SCADA interfaces and is fitted with a fifth power input. This means the device offers everything power quality experts need.

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

Battery storage & storage power plants (MV/LV)
Main and sub-distribution boards in industrial and functional buildings
Industrial plants & production facilities
Emergency power systems / emergency power supply
Residential districts with PV, charging points & heat pumps
Data centers & IT infrastructure
Local network stations (MV/LV)
Transformer stations at grid nodes
Transmission & distribution grids (HV/MV/LV)
Substations (HV/MV)
Ground-mounted photovoltaic systems
Onshore windparks
Offshore windparks
Hydroelectric power plants

Cross-Product Downloads

Special Publications
Flyer
Product Overview A. Eberle
A. Eberle Seminars in Nuremberg

PQI-DE

Instruction Manual
Installation Manual
Technical Data Sheets
Release Notes
Firmware
Interface Lists
Tender Specification
WinPQ Lite
Project Planning Data (3D Models)
Type Test Certificate

Accessories

I-Sense: Current Feeder Measurement
Mounting Panel
Rogowski Coil
Current Clamp
Divisible Differential Current Transformer
GPS Receiver Set
Modem / Remote Connection

Measure. Regulate. Across All Grids.

A. Eberle GmbH & Co. KG, founded in 1980 and headquartered in Nuremberg, Germany, operates in the field of measurement and regulation technology for the energy sector as well as for medium-sized and large industrial companies. Our products and services ensure and enhance the availability of energy supply across all voltage levels and support the integration of renewable energy sources into power grids.

Records Transients at up to 24 µs

Transients are increasingly a problem in electrical grids. The energy logger PQI-DA smart offers the ability to measure these transients exactly down to 24 µs, allowing precise network analysis. Analysis with our device makes the grid not only more stable but also safer.

energy-logger

Standards and Protocols – Making Our Products Fit for the Future

  • EN 50160 (2013)
  • IEC 61000-2-2
  • IEC 61000-2-12
  • IEC 61000-2-4 (Klasse 1;2;3)
  • NRS 048
  • IEEE 519
  • IEC 61000-4-30 Klasse A
  • IEC 61000-4-7
  • IEC 61000-4-15
energy-logger

Fulfill the Measurement Standards of Tomorrow Today

Our fix installed all-rounder offers a wide range of measurement options that represent the standards of tomorrow, today. Thus, our PQI-DE energy logger already provides frequency measurement from 2 – 20 kHz. Consider buying one of our devices as investing in the solutions of the future.

Residual Current Measurement RCM to 40.96 kHz Over 5 Current Channels

Residual current measurement has a wide range of applications. On the one hand, the energy logger can be used to substitute repeat insulation tests to DIN VDE 0150-100/A1; while in connection with a switch-off device it can also provide fire and material protection. The PQI-DE is the first device in the product portfolio that can do both.

IT Security From the Manufacturer With ISO 27001 Certification

Certified security via User Rights Management (URM) and Role Based Access (RBAC) thanks to highly encrypted data transmission.

Transparency in the Distribution Grid - Powered by A. Eberle

Power Quality Monitoring with »PQI-DE« in combination with »I-Sense«

High-quality power quality monitoring with the option of quick and easy current drop monitoring helps to recognise trends at an early stage and offers the advantage of being able to initiate countermeasures in good time.


Measure Transformers in the Local Substation With High Precision - With the PQ Network Analysers »PQI-LV«, »PQI-DA smart« or »PQI-DE«

  • Measure voltage, current, power and power quality parameters at the transformer infeed with less than 0.1% deviation in accordance with IEC61000-4-30 Class A Ed. 3 to assess voltage quality via power quality parameters in accordance with EN50160 and IEC61000-2-2.
  • Analysis of flicker, THD, harmonics (H2-H50), supraharmonics 2-20kHz, transients & PQ events with fault recording in the event of under- or overshoot.

Measuring, Recording and Analysing Outgoing Circuits - With the »I-Sense« Current Measurement Technology

  • Current measurement L1/ L2 / L3 / (N) with min. and max. values for up to 16 outgoing circuits.
  • Simple connection possible using existing ‘third party devices’, such as safety edges with intelligent transformers.

Reporting to the Point - With the »WebPQ®« Analysis Software

  • »WebPQ®« software solution for quick and easy evaluation of power quality data and outgoing feeders using clear, configurable reports.

Quick Comparison: PQI-LV vs. PQI-DA Smart vs. PQI-DE

Find the Right Power Quality Analyzer for Your Application.

niederspannung-messgeraet

PQI-LV

PQI-DA Smart

PQI-DE

niederspannung-messgeraet
Application

• Secondary substation
• Depth of the grid
(cable-/light-/sub-distributors)
• Industrial power grids
(machinery/processes & plants)
• Retrofits

Voltage level

Low-voltage

Measurement: 4x Voltage, 4x Current

✔️

10.24 kHz / Optional 40,96 kHz (B1)
IEC61000-4-30 Edition 3 Class A

✔️

Supraharmonic Measurement

✔️

2 kHz to 20 kHz according to IEC61000-4-7 via software option (B1)
SCADA & Communication Protocols – Standard

✔️

CCCI, SSH, HTTP(S)
Modbus RTU & TCP (Standard)
SCADA – License Option

✔️

IEC60870-5-104 (P1), IEC61850 (P2), Modbus Master (P3) MQTT*
IT Security

✔️

Radius, RBAC, URM, encryption
Memory

✔️

1GB ~ 140 weeks with standard template
Display

Design & Mounting

DIN-rail

Dimensions

130 x 90 x 58mm

L x W x H
Voltage Measurement

Direct

230 / 400 / 690V
Current Measurement

Rogowski coils & current sensors
350mV input

Digital Inputs and Outputs (Triggers and Alarms)

RCM Residual Current Measurement

Temperature Input

Fault Recorder / Transient Recorder

Optional

Application

• PCC / Point of Common Coupling (IEC 61000-2-2)
• POC / Point of Connection
(EN 50160)
• Secondary substation
with increased requirements
• Industrial applications

Voltage Level

Low-, medium- and high-voltage

Measurement: 4x Voltage, 4x Current

✔️

10.24 kHz / Optional 40,96 kHz (B1)
IEC61000-4-30 Edition 3 Class A+

✔️

Supraharmonic Measurement

✔️

2 kHz to 20 kHz according to IEC61000-4-7 via software option (B1)
SCADA & Communication Protocols - Standard

✔️

CCCI, SSH, HTTP(S)
Modbus RTU & TCP (Standard)
SCADA - License Option

✔️

IEC60870-5-104 (P1), IEC61850 (P2), Modbus Master (P3) MQTT*
IT Security

✔️

Radius, RBAC, URM, encryption
Memory

✔️

1GB ~ 140 weeks with standard template
Display

1.7 inches

Design & Mounting

DIN-rail,
Front panel installation using adapter

Dimensions

160 x 90 x 58mm

L x W x H
Voltage Measurement

Direct and transducer measurement

100 / 230 / 400 / 690V
Current Measurement

1A/5A measuring transformer (C30)
1A/5A protection transformer (C30)
Rogowski coils (C40)
Sensor technology (C44)
DC (C45)

Digital Inputs and Outputs (Triggers and Alarms)

2 / 2

RCM Residual Current Measurement

Temperature Input

Fault Recorder / Transient Recorder

✔️

Application

• Substations
• Industrial applications
• Grid code compliance
• High-precision frequency measurements
Residual Current Monitoring (RCM)

Voltage Level

Low-, medium- and high-voltage

Measurement: 4x Voltage, 4x Current

✔️

10.24 kHz / Optional 40.96 kHz (B1)
IEC61000-4-30 Edition 3 Class A++

✔️

Supraharmonic Measurement

✔️

2 kHz to 20 kHz according to IEC61000-4-7 via software option (B1)
SCADA & Communication Protocols - Standard

✔️

CCCI, SSH, HTTP(S)
Modbus RTU & TCP (Standard)
SCADA - License Option

✔️

IEC60870-5-104 (P1), IEC61850 (P2), Modbus Master (P3) MQTT*
IT Security

✔️

Radius, RBAC, URM, encryption
Memory

✔️

1GB ~ 140 weeks with standard template
Display

5 inches

Design & Mounting

Front panel installation
144 x 144

Dimensions

144 x 144 x 90 mm

L x W x H
Voltage Measurement

Direct and transducer measurement
Small signal transducer (E3)

3.25 / 100 / 230 / 400 / 690V
Current Measurement

1A/5A measuring transformer (C30)
1A/5A protection transformer (C30)
Rogowski coils (C40)
Mini current clamps (C44)
DC (C45)

Digital Inputs and Outputs (Triggers and Alarms)

8 / 4

RCM Residual Current Measurement

✔️

5th current feeder (30mA)
Temperature Input

✔️

PT100 / PT1000 / KTY
Fault Recorder / Transient Recorder

✔️

Do You Have Questions About
the PQI-DE Measuring Device?

Our Specialists Will Be Happy to Help You!


Contact Us

Power Quality Analysis Software

Suitable for PQI-DE

WebPQ®

The Easy Way to Analyse Your Power Quality Measurement Data

The new WebPQ® is the central analysis software for all fixed installed fault recorders, power quality monitoring devices and for the evaluation of the portable power quality analysers* from A. Eberle.

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