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Whether it's small offices, large industrial enterprises, ISPs, shopping malls, televisions, hospitals or other administrative buildings, a power outage can have negative consequences for any business - data loss, damage to sensitive equipment and disruption of the workflow are just some of them. The solution to these problems is the implementation of UPS systems.
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UPS devices provide a stable power supply when a problem occurs with the central power grid. Thus, they allow equipment to continue to function even in the event of a power failure.
UPS systems are not the same. They differ in their technology, degree of complexity and quality of the batteries used and, respectively, provide a different level of protection for the equipment.
We can distinguish three types of UPS technologies according to their degree of protection to the connected: Offline (Stand-by), Line-Interactive and On-line Double Conversion.
Offline technology is most often used in protection against power failures, voltage drops, as well as power surges. using this technology, the UPS supplies the device directly from the central grid, performing filtering without performing active conversion. When the power supply stops, the UPS unit provides current from the battery. This type of technology is suitable for the protection of non-critical equipment.
Line-interactive technology is used to protect against power outages, voltage drops, power surges, low voltage and overvoltage. This type of UPS device uses a transformer that effectively filters and stabilizes voltage deviations, managing to stabilize the output voltage with weaker fluctuations without the need for switching or the use of a battery. Line-interactive technology is primarily applied to protect corporate networks and IT applications.
On-line Double Conversion Technology protects the equipment from all possible power supply problems: power outages, voltage drops and peaks, power surges, electrical noise, low and high voltage, frequency variations. The advantage of this type of technology is the conversion of the input voltage from variable to constant, followed by a new conversion from constant again to variable, which provides power supply without electrical interference. This type of technology is used to continuously protect equipment, which is critical.
The differences between the three typologies are also reflected in the quality and lifespan of the batteries in the UPS system.
Offline UPS systems experience frequent battery switching, especially when the devices are installed in a low-voltage environment, which can lead to more frequent battery replacement than if a line-interactive UPS is used.
With line-interactive UPS units, the use of an automatic voltage regulator (AVR) to correct for abnormal voltages prevents excessive battery usage during low voltage and overvoltage conditions.
Online UPS systems use battery power only when the supply voltage is extremely low, high or when complete power loss occurs, which in turn limits the need for expensive and frequent battery replacement. Both online and higher-end linear interactive UPS's feature battery management systems that can further extend battery life. The addition of extra batteries on some models can provide longer run times
The selection of the appropriate UPS technology to achieve optimal protection depends on the required level of reliability, as well as the type of equipment that will be subject to protection. Trust our team of specialists to guide you on the most suitable UPS depending on your needs.
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