In modern industry, where power electronics and automation systems are ubiquitous, electrical power quality has become a critical factor. Grid disturbances, such as harmonics and current spikes, can drastically reduce equipment lifespan and cause unscheduled downtime. In this context, low voltage inductors (also known as reactors) emerge as essential components to ensure smooth, safe, and efficient operation.
At EREMU, with over 60 years of experience in the design, manufacture, and repair of electrical equipment, we specialize in developing inductors that meet the most demanding technical challenges. Our engineering focuses on providing solutions that not only comply with international regulations but also optimize the overall performance of your installation.
What Are Low Voltage Inductors and Why Are They Necessary?
An inductor is a component designed to store energy in a magnetic field when electrical current flows through it. Its primary function in low voltage circuits is to oppose sudden changes in current, acting as a “filter” or “buffer” for the electrical system.
In an industrial environment, low voltage inductors are vital for:
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Harmonic Filtering: They reduce distortion caused by variable frequency drives (VFDs), inverters, and other non-linear devices.
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Motor Protection: They limit the rate of voltage rise (dv/dt), protecting motor insulation and extending its operational life.
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Power Factor Correction: They are used in capacitor banks to prevent resonance with grid harmonics.
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Short-Circuit Current Limiting: They protect electrical panel components by reducing current levels during a fault.
Primary Industrial Applications
The versatility of EREMU’s inductors allows for their integration into a wide variety of sectors, from renewable energy to heavy steel industries.
Filtering in Variable Frequency Drives (VFDs)
Drives are essential for energy savings but generate electrical noise. Installing a line reactor at the drive input reduces the harmonics injected into the grid. Conversely, an output reactor helps smooth the voltage wave reaching the motor, especially when long cabling distances are involved.
Renewable Energy Systems
In photovoltaic plants and wind farms, inductors are key components in power inverters, helping to inject clean and stable energy into the distribution grid.
Uninterruptible Power Supplies (UPS)
For data centers and hospitals, where service continuity is non-negotiable, our inductors ensure that UPS output filters deliver a pure sine wave free of distortion.
The EREMU Value Proposition: Precision Engineering
What distinguishes EREMU in the manufacturing of low voltage inductors is our ability to adapt to each client’s exact specifications. We do not just manufacture components; we design engineering solutions.
Custom Design and Manufacturing
We understand that no two applications are the same. Therefore, we adapt:
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Inductance and Current Values: From a few amperes to high currents for heavy industrial processes.
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High-Quality Materials: We use copper or aluminum conductors with superior thermal class insulation (Class F or H), ensuring a long lifespan even under intensive working conditions.
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Ingress Protection (IP) Ratings: We offer everything from open designs for panel mounting to encapsulated equipment or metallic enclosures with high protection against dust and moisture.
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Loss Reduction: We optimize the magnetic core design to minimize hysteresis and eddy current losses, improving the system’s total energy efficiency.
Repair and Maintenance
Our heritage as a repair company gives us deep insight into why equipment fails. This “know-how” is applied to our manufacturing to avoid weak points. Additionally, we offer repair and rewinding services for inductors from any manufacturer, ensuring your investment remains operational for as long as possible.
Quality and International Standards
Every inductor that leaves our plant has undergone rigorous testing in our laboratory. We strictly comply with international standards (IEC, UNE, EN), guaranteeing that our products are safe and compatible with global engineering benchmarks.
EREMU’s ISO 9001 certification supports every step of our process, from raw material selection to final quality control, ensuring total traceability and impeccable performance.
EREMU: Your Technological Partner
Choosing EREMU means relying on a technical team that speaks your language. Our engineers will advise you on the best configuration for your system, helping you reduce maintenance costs and improve the efficiency of your electrical assets.
Whether you need a choke reactor for a new automation project or an urgent repair for critical equipment, at EREMU, we transform your technical needs into reliable power solutions.
Optimize Your Company’s Electrical Quality
Do not let harmonics or grid disturbances affect your productivity. EREMU’s solutions in low voltage magnetic components offer the safety and performance your industry deserves.
Discover all our solutions and technical details on EREMU Low Voltage Inductors here
