It Is All About the Right Voltage
Low Voltage Regulation System LVRSys®
Low Voltage Regulation Systme LVRSys®
Outdoor
The low-voltage regulation system LVRSys® is a cost-effective alternative to a network extension. This flexible voltage stability solution for network operators and industrial networks pays off when deployed in any low-voltage networks which have sufficient short-circuit capacity but where voltage stability is a problem.
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Low Voltage Regulation: Downloads
Low Voltage Regulation: Downloads
Instruction Manual
Technical Data Sheets
Flyer
Installation Manual
Special Publications
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Product Overview A. Eberle
A. Eberle Seminars in Nuremberg
Presentation Flyer »LVRSys®«
Get to Know the LVRSys®-Low-Voltage Control System at a Glance.
A Flexible And Robust System
From years of experience, we know that developed systems have to be robust and flexible. Unlike with a regulated local grid transformer, only those parts are designed to be regulated which are affected by voltage stability problems. The distribution grid is supplemented flexibly and according to need. A smart grid doesn't just have to be smart, it also has to be resilient. The system is short-circuit-proof to 50 kA, shows great stability in the face of overloads, direct and indirect lightning strikes and is overload-resistant like an NH fuse.
Network Compatible, Easy to Install
The system has no effect on the network, meaning it neither causes flickers nor harmonics. It ensures voltages are kept symmetrical through phase-independent regulation and can be integrated into any existing fuse design. It also guarantees an uninterruptible voltage supply.
Simple Installation, Intuitive And safe
To make the application of the low-voltage regulation system as intuitive as possible, its installation has been designed to be analogous to that of the cable distribution cabinet. Unlike a standard network regulator, the system can be connected in the usual way via vertical fuse rails. Safety is paramount for us. The system is fully enclosed, guaranteeing the lowest possible risk of contact.
A ReliableAnd Economical System All Round
The system electronics are protected against damp in the internal regulator cabinet, fitted out to class IP66. This control cabinet is impressively efficient, for example, allowing passive cooling even in direct sunlight, making operating temperatures between -40°C and +50°C unproblematic.
Flexible, Rapid and Easy to Use
The reaction time of the regulator can be set between <30 ms and 100 s with the regulatory algorithms adjusted to the most varied fields of application. In addition, the recorded data can be exported to a USB stick and firmware updates achieved by the same medium or by remote maintenance. Naturally, the system also provides the common communications interfaces Modbus TCP and IEC 60870-5-104.
LVRSys® - the Solution for Voltage Stability Problems
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News from the Productgroup
LVRSys® - News
Special Publication
Low-Voltage Line Voltage Regulators for Stable Low-Voltage Grids | Practical example: »LVRSys®« at »ovag Netz GmbH«
19. December 2025
A distribution voltage regulator stabilizes LV feeders locally where PV and load peaks cause deviations. This practical example from ovag Netz shows how LVRSys® supports fast, measurable voltage control[...]
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Special Publication
LVRSys® Voltage Regulation in Low-Voltage Networks - Solving Pv-Related Overvoltage Issues
4. December 2025
The LVRSys® low voltage regulation system stabilizes voltage in PV-dominated low-voltage networks, preventing EN 50160 violations and avoiding expensive grid reinforcement.[...]
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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[...]
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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[...]
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Special Publication
LVRSys®: It's All About the Right Voltage
7. August 2025
Summary Stable voltage quality is becoming increasingly important in modern distribution grids. Due to the growing feed-in of renewable energies […][...]
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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.[...]
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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[...]
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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.[...]
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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)[...]
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Blogpost
Further Growth at A. Eberle
14. July 2025
Welcome to the team! We welcome our new colleagues at A. Eberle.[...]
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General Knowledge
Voltage Stabilisation
7. July 2025
In this article, you will learn why voltage stabilisation in high, medium and low-voltage grids plays a central role in safe and efficient grid operation. You will learn the basics of ‘voltage stabilisation’[...]
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Webinar
»LVRSys®« Webinar: The Solution for Voltage Stability Problems
29. April 2025
Webinar recording from 2025-03-19: »LVRSys® - The Solution for Voltage Stability Problems«. [...]
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Special Publication
Renewable Energy Solutions (RES) - Pilot Project in South Africa for Efficient Voltage Stabilisation With »LVRSys®«
11. April 2025
This application report shows the successful use of the »LVRSys®« low voltage regulation system in the Siemens data centre in Midrand, South Africa. Read here how »LVRSys®« reliably stabilises the[...]
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Blogpost
First »LVRSys® - Low-Voltage Regulation« System in South Africa
2. April 2025
We are excited to share another milestone in grid stability and energy efficiency: the first »LVRSys®« - low-voltage regulation system in south africa has been successfully commissioned![...]
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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,[...]
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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.[...]
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General Knowledge
Voltage Stability
26. August 2024
Where and why does voltage stability play such an important role today? What are the current and future challenges? And what methods are there for voltage stability in the low-voltage grid? We answer the[...]
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Blogpost
»LVRSys®« Low-Voltage Regulate: Info Day With Live Demonstration in Nuremberg
5. August 2024
This week, the Chair of Electrical Energy Systems at FAU Erlangen-Nuremberg visited our Info Day in Nuremberg together with many interested participants. The highlight was the live demonstration of the[...]
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Webinar
»LVRSys®« Webinar: The Solution for Voltage Stability Problems in Industrial Facilities
11. June 2024
Webinar recording from 2023-06-06: »LVRSys® - The Solution for Voltage Stability Problems in Industrial Facilities«. [...]
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Webinar
»LVRSys®« Webinar: The Solution for Voltage Stability Problems in Low-Voltage Grid
11. June 2024
Webinar recording from 2023-06-06: »LVRSys® - The Solution for Voltage Stability Problems in Low-Voltage Grid«. [...]
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