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UPS, or uninterruptible power supply, is an uninterruptible power supply with energy storage device and constant voltage and frequency with inverter as the main component. Its main function is to provide uninterrupted power supply for a single computer, computer network system or other power electronic equipment. When the mains input is normal, UPS uninterruptible power supply stabilizes the mains voltage and provides load for use,At this time, UPS uninterruptible power supply is equivalent to an ac municipal voltage stabilizer, and it also charges the battery inside the machine; When the power supply is interrupted, UPS will immediately supply 220V ac power to the load through inverter conversion, so as to maintain the normal operation of the load and protect the software and hardware of the load from damage.
According to the statistics of our professional UPS power website -- Netcca website (www.netcca.com.cn), there are a large number of common UPS power supply types in our factory at present, with a total of 163 kinds of UPS power supply products. Facing so many UPS power supply products, which one is more suitable for you?
At present, the average power consumption of a computer is about 250VA, and a backup 500VA UPS can provide power for about 10 minutes. This is enough time to make sure you have enough time to save the file and shut down the computer properly. If you have multiple computers at home, you can calculate the total power by yourself, and then select the appropriate UPS capacity. For some specific commercial and industrial applications, the calculation is much more complex. The requirement of these departments for UPS is to ensure that dozens of computers can work continuously for more than ten or even dozens of hours when the power grid is cut off.
In addition, UPS uninterruptible power supply as a protective power supply equipment, its performance parameters have important significance is one of the key considerations when we buy. The wide input range of mains voltage indicates the strong utilization ability of mains (reducing battery discharge). A small range of output voltage and frequency indicates a strong ability to adjust the power supply and stable output. Waveform distortion rate is used to measure the stability of output voltage waveform, while voltage stability indicates the stability of output voltage when UPS suddenly increases from zero load to full load. In addition, UPS efficiency, power factor, conversion time and other important parameters that characterize UPS performance determine the protection capacity of load and the utilization rate of mains power. The better the performance, the stronger the protection ability. In general, off-line UPS has the worst protection for load, while online interactive UPS is slightly better. Online UPS can solve almost all common power problems.
Generally, online UPS has a high price, but its protection function is very perfect. It can filter out all kinds of viruses parasitic on most power grids and fully guarantee the stability and safety of load equipment. Backup UPS is small in size and low in price. It can also prevent data loss caused by power failure for some equipment systems that are not particularly important.
If economic conditions allow, of course, the first online UPS. However, from the perspective of economy, a backup UPS power supply is enough for ordinary families or ordinary office places with low requirements.