Low Voltage Panel. A Key Element in Electrical Infrastructure

LV panels play a crucial role in managing and protecting the electrical supply in residential, commercial, and industrial environments. They serve as a control point where electrical energy is distributed to various consumption points, ensuring a safe and efficient flow.

What is a LV Panel?

A LV panel is a centralized device that receives electricity from the main grid and distributes it to different circuits within a facility. Its main function is to protect power transformers from overloads and short circuits, as well as to supply and protect network line outputs through fuse switches, thereby ensuring the safety of equipment and users.

In addition to their protective function, LV panels can include energy monitoring equipment, enabling efficient management of electricity consumption, avoiding energy waste, and optimizing network usage. This is especially relevant in environments with high electricity demand that must be managed precisely.

Types of LV Panels for Transformer Substations by Application

With 38 years of expertise, Pronutec specializes in the design and manufacture of LV panels for transformer substations. Our LV panels are developed with the latest technology thanks to the advances of our R&D&I department, complying with quality standards and meeting the needs of our clients, our main guarantee of excellence.

Interior of a Transformer Substation with a LV Panel

The range of panels can be classified by application:

LV Panels for Utility Companies: optimized for public distribution networks, ensuring safe management of the electrical supply in energy provider infrastructures. These panels are designed to operate under extreme conditions and ensure continuity of supply.

Panels direct customers and industrial facilities: designed for electrical supply control mainly in industrial environments, complying with current regulations and ensuring end-user safety. Their compact design allows for easy and efficient installation, optimizing available space.

Panels for Photovoltaic Applications: these LV panels, up to 800V AC, for string inverter grouping are the optimal choice for electrical protection in both small and large-scale solar projects.

Panels for Electric Vehicle Charging Stations: designed to protect LV lines in indoor transformer stations supplying various charging points through converters/rectifiers in fast and ultra-fast EV charging infrastructures.

Monitoring in LV Panels

Pronutec’s LV panels incorporate the necessary elements for monitoring the low voltage network, providing our clients with solutions that optimize the network, ensure quality supply, prevent failures and disturbances, and detect fraudulent use, among other functionalities.

More than 100 utility companies worldwide trust our Smart Grids solution, and monitoring equipment has been installed in over 300,000 transformer substations. We develop LV panels for transformer substations, whether for utility companies or end users, as well as complementary equipment such as remote management and communication cabinets.

Among our solutions for LV network monitoring are line-level network monitoring systems, both for new panels as complete solutions and for existing ones, where the retrofit solution range stands out for its adaptability to any LV panel.

Components of LV Panels

Fuse Switches: safety devices that protect electrical installations against overloads and short circuits, preventing fires and other electrical hazards.

Busbars: copper conductor bars that distribute energy within the panel without overheating.

Main Switch: allows disconnection of the entire panel’s power supply, facilitating maintenance and safety tasks. Switches can be load-break or automatic, depending on project needs.

Residual Current Devices (RCDs): detect current leakage and disconnect the power supply to prevent electrocution.

Measuring Devices: measure the electrical consumption of an installation, aiding in billing and energy control.

Surge Protection Devices: protect electrical equipment against unexpected voltage spikes, avoiding costly damage.

Maintenance and Safety of LV Panels

To ensure proper operation and safety of LV panels, it is essential to carry out regular inspections, check electrical connections, and replace faulty components when necessary. These inspections must be performed by certified professionals in compliance with current electrical regulations. Best practices for maintenance include:

Regular visual inspections to identify signs of wear or overheating.

Functionality tests to verify that main components operate correctly.

Replacement of obsolete components to maintain system efficiency.

Conclusion

LV panels are key elements in electrical infrastructure, providing safety and efficiency in energy management. Pronutec offers innovative and customized solutions to meet the needs of the electrical sector, ensuring quality and regulatory compliance in every product.

Choosing the right LV panel is essential to ensure a stable and safe power supply. Therefore, it is crucial to rely on a specialized team for the selection, installation, and maintenance of these devices, ensuring maximum performance and durability of the electrical system.