»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
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
Measuring Harmonics: Detecting Disturbances in Buildings
6. March 2026
Harmonic distortion and supraharmonics can cause flicker, nuisance tripping and device malfunctions in modern buildings. This article explains how to measure harmonics at the socket outlet and interpret[...]
Read more
Blogpost
Power Quality Monitoring for Electrical Contractors - Mobile Network Quality Measurement with the PQ-Box ONE
2. March 2026
How a portable power quality analyzer like the PQ-Box ONE helps electrical professionals identify voltage disturbances, improve documentation and make reliable technical decisions.[...]
Read more
Blogpost
Power Quality Analyzer Guide: Your Entry Point for 2026
29. January 2026
Comprehensive 2026 guide to power quality analysers: selection criteria, applications, standards, and future trends for reliable power quality monitoring.[...]
Read more
Webinar
»Cyber Security« Webinar: A Challenge for European Energy Companies
3. December 2025
Webinar recording from 2025-11-26: »Cyber Security« - A Challenge for European Energy Companies[...]
Read more
Blogpost
A. Eberle at the Schwabach City Run 2025
24. November 2025
A. Eberle was represented by 37 participants at the 2025 Schwabach City Run, setting a new internal record for participation. Particularly noteworthy is Benjamin Rentsch's first place in the M 35 40 age[...]
Read more
General Knowledge
Total Harmonic Distortion (THD) in Low Voltage Networks
20. November 2025
This study examines harmonic distortion in modern low-voltage grids, showing real measurement data, key standards (EN 50160, IEC 61000-3-2/-4-30) and practical ways to reduce THD in applications such as[...]
Read more
Special Publication
Power Quality Monitoring in Buildings - A Key Factor in Modern Building Design
12. November 2025
Discover how Power Quality Monitoring in Buildings improves reliability, efficiency and grid stability. Learn more in our technical article.[...]
Read more
Special Publication
Continuous Power Quality Monitoring in the Jupiter Data Centre - Voltage Quality at Exascale Level
5. November 2025
Read more
Webinar
»PQSys« Webinar: »WebPQ®« - The New Power Quality Software for Continuous Grid Monitoring
27. October 2025
Webinar recording from 2025-09-25: »PQSys« Webinar: »WebPQ®« - The New Power Quality Software for Continuous Grid Monitoring [...]
Read more
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
Webinar
»PQSys« Webinar: PQ-Monitoring & Feeder Current Measurement in Low-Voltage Grids 3
19. May 2025
Webinar recording from 2025-05-14: »PQSys - PQ-Monitoring & Feeder Current Measurement in Low-Voltage Grids - part 3«. [...]
Read more
Webinar
»PQSys« Webinar: Presentation: »PQI-LV« - The New PQ-Analyser for Transparency in the Low-Voltage Grid
4. March 2025
Webinar recording from 2025-02-19: »PQSys - Presentation: »PQI-LV« - The New PQ-Analyser for Transparency in the Low-Voltage Grid«. [...]
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
