Voltage variations are among the main issues in managing industrial and advanced tertiary electrical systems.
When voltage deviates from the established nominal values, risks for equipment and production continuity can translate into significant costs and substantial economic losses.
Voltage variations are fluctuations of the RMS voltage value compared to the nominal supply voltage. According to EN 50160, which defines the characteristics of voltage supplied by public electricity distribution networks, for low-voltage networks at 230V, 95% of voltage averages must remain within ±10% of the nominal value (207V – 253V).
Variations are classified as:
The regulation requires that 100% of voltage averages must remain between -15% and +10% of the nominal value (195.5V – 253V), with temporary tolerances not exceeding 5% of weekly measurement intervals.
Voltage variations may arise from different causes, both internal to the system and external to the distribution network. Understanding these phenomena is essential to implement effective protection strategies.
The most affected sectors include automotive, food, chemical and mechanical industries, where damage from micro-outages and voltage sags may account for up to 4% of annual turnover for particularly sensitive companies.
Most frequent effects on components:
In the European industrial sector, according to Eurelectric and Leonardo Energy estimates, total annual costs for companies amount to about €150 billion due to Power Quality issues, while in Italy the annual cost is estimated between €4 and €6 billion.
In highly automated sectors such as automotive, the average cost of line downtime due to voltage issues can reach €2,000–5,000 per minute, with an average of 5–15 incidents per year causing losses between €50,000 and €500,000 per medium-sized industrial site.
To address these issues, OrteaNext has developed a complete range of voltage stabilisers, entirely designed and manufactured in Italy, capable of ensuring a stable and reliable power supply.
The voltage stabiliser is an effective solution for preventing potentially damaging situations caused by input voltage instability.
OrteaNext voltage stabilisers use advanced technologies to keep output voltage within tight tolerance limits (typically ±0.5%), regardless of input voltage fluctuations.
The system instantly detects variations and automatically corrects the voltage supplied to the loads.
Unlike UPS systems, which intervene only in case of power failure, stabilisers:
OrteaNext stabilisers are used in large and medium industries, utilities, data centres, hospitals and advanced tertiary sectors with high energy consumption, where continuity and power quality are crucial for:
Selecting the most suitable stabiliser requires an in-depth analysis of the system characteristics and the specific requirements of the application.
Calculation of required power:
Required variation range:
Electromechanical stabilisers:
Static stabilisers:
OrteaNext offers customised solutions for every specific need, including: IP54 protection for harsh industrial environments, Ortea Cloud monitoring systems for remote control, and special configurations for specific applications.
Contact one of our experts for a customised assessment of your application.
The additional features of the stabiliser can be defined based on the type of installation.
In particular, the following factors need to be taken into account:
Thanks to solution customisation, through suitable variants, it is possible to obtain “special” stabilisers capable of:
Here are the main questions on solutions to voltage variations.
While a UPS supplies power during outages using batteries, a stabiliser continuously corrects voltage variations, always keeping supply active with the correct voltage from the grid. The stabiliser is more efficient for voltage correction, while the UPS is necessary for complete interruptions.
No, the stabiliser corrects voltage variations but does not provide protection against lightning strikes. For complete protection, it must be integrated with appropriate surge protection devices (SPDs).
OrteaNext stabilisers are designed for an operating life of over 10 years under normal usage conditions, with high manufacturing standards and “Made in Italy” certifications. Periodic maintenance can further extend system life.
Yes, through the Ortea Cloud system it is possible to monitor electrical parameters in real time, receive alarms and analyse historical data for predictive maintenance.
OrteaNext, a global leader since 1969 in “Power Quality” and “Energy Efficiency”, offers a complete and integrated portfolio of solutions for power factor correction, filtering, stabilisation and optimisation of electrical systems.
The advantages of choosing OrteaNext:
The European market for stabilisers and power quality systems is growing at an annual rate of 6–7%, confirming the increasing importance of these solutions for industrial competitiveness.
