»I-Sense« Feeder Current Measurement Technology
Secure, Easy & Economical for up to 16 Feeders
Secure, Easy & Economical for up to 16 Feeders
»I-Sense« Power Quality Monitoring
With the new »I-Sense« technology for our fixed installed power quality analysers PQI-LV, PQI-DE & PQI-DA smart, it is now possible to measure feeder current in the secondary substation securely, easily and economically for up to 16 feeders. The installation is easy and quick using Rogowski coils and, in addition to current measurement in the feeders, the system also offers the option of highly sophisticated power quality monitoring at the secondary substation transformer.
Further questions or want to start an enquiry? Please click “Product Enquiry”.
Cross-Product Downloads
Cross-Product Downloads
Special Publications
Flyer
Product Overview A. Eberle
A. Eberle Seminars in Nuremberg
I-Sense
I-Sense
Instruction Manual
Technical Data Sheets
I-Sense Flyer
WinPQ
WinPQ
Instruction Manual
Instruction Manual Security Documentation
Special Publications
WinPQ Software
WinPQ lite Software
PostgreSQL – Updates (Patches)
System Requirements
Software Transfer – Conditions
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
GPS Receiver Set
»I-Sense« – Bring Maximum Transparency to Your Grid
Monitoring the Asset »Secondary Substation«
Transformer measurement according to 61000-4-30 Class A Ed. 3 incl. supraharmonics (2–20khz) and high-resolution fault recording in the event of a fault.
Economical and Reliable
Three- or four-phase systems with up to 16 feeders can be realised economically.
High Compatibility
Compatible with our existing fixed installed power quality analysers PQI-LV, PQI-DA smart & PQI-DE thanks to open interfaces (with feature P3 – Modbus gateway for I-Sense).
Easy to Install and Integrate
Quick, easy and secure installation on site via Rogowski coils. Less wiring effort thanks to the daisy chain principle using standard RJ45 cables – especially for retrofit.
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 »I-Sense« Current Feeder Measurement Technology
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 the power 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
- Software solution »WebPQ®« for quick and easy evaluation of power quality data and outgoing feeders using clear, configurable reports.
Click here for a sample report!
Compatible With »I-Sense«
Our Fixed Power Quality Analysers With Fault Recorder Functionality
News From the Product Group
PQSys – News
General Knowledge
Power in Multiphase Systems
7. August 2025
This technical report highlights the special features of power transmission in three-phase systems and offers valuable insights into the optimisation and analysis of modern power grids.[…]
Read more
Blogpost
Visit From the Rudolf Diesel Technical School at A. Eberle
15. July 2025
We were happy to welcome you, Rudolf-Diesel-Fachschule! Yesterday, we had the pleasure of welcoming two classes of future electrical engineering technicians from the Rudolf-Diesel-Fachschule Nürnberg[…]
Read more
Blogpost
TOP 100 Awards 2025: Innovation for the Energy Future
15. July 2025
💡 As part of the TOP 100 Awards 2025, we were honored to receive a special recognition last week in Mainz – personally presented by TV host and science journalist Ranga Yogeshwar.[…]
Read more
Blogpost
University Excursion: Pentecost Excursion of the Friedrich-Alexander-University Erlangen-Nuremberg (FAU)
14. July 2025
As a company dedicated to innovation, education, and the energy transition, we are pleased to have once again supported the Whitsun excursion of Friedrich-Alexander University Erlangen-Nuremberg (FAU)[…]
Read more
Blogpost
Further Growth at A. Eberle
14. July 2025
Welcome to the team! We welcome our new colleagues at A. Eberle.[…]
Read more
Blogpost
Specialist Training on Power Quality
18. June 2025
On 27 May 2025, everything revolved around electricity, faults and how to recognise them in a specialist training course on power quality at the Balthasar Neumann Technical Centre in Trier (BNT).[…]
Read more
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,[…]
Read more
Product innovation
Product Announcement: »PQI-LV« Released on 05.06.2024
22. January 2025
PQI-LV – cost-efficient class A power quality analyser for precise PQ monitoring in low voltage. Available to order now.[…]
Read more
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[…]
Read more
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.[…]
Read more
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[…]
Read more
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[…]
Read more
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.[…]
Read more
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.[…]
Read more
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.[…]
Read more
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.[…]
Read more
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.[…]
Read more
