1、 What is ups? What is the working principle and application scope of it?
UPS is a kind of power supply guarantee equipment which can keep the load equipment without interruption of external power system for a period of time.
With the continuous development of digital computer technology, its application scope gradually goes into the important sectors of industrial control, bank, power, military, finance, communication, etc., which also puts forward more stringent requirements for the stability and reliability of the computer. UPS is to deal with the problems of sudden power failure, voltage instability, power line clutter * and so on, which often appear in power system, so as to ensure that the computer system can continue to work normally in case of power supply problems.
UPS works like a reservoir. When the external power supply is normal, ups will convert some of the electrical energy into chemical energy for storage in addition to normal power supply to the load; once the external power suddenly breaks down, the ups will immediately start the inverter device, and quickly convert the chemical energy into the power supply to the load continuously, so as to ensure the normal operation of the load equipment.
2、 How to choose a suitable UPS power supply for you
According to the world's most professional UPS power data website, constant power website (86 ups.com ）The statistics show that there are up to 20 UPS power brands in the market, with a total of 1643 UPS power products. Facing so many ups power products, which one is more suitable for you?
1. How to choose the UPS power supply on line and backup
Generally, online UPS is expensive, but the protection function is very perfect, which can filter out all kinds of viruses parasitic on most power grids, fully ensure the stability and safety of load equipment; the backup UPS is small in volume and low in price. For some equipment systems that are not particularly important, it can also prevent data loss caused by power failure.
If economic conditions permit, of course, the first is On-line UPS. But from the economic point of view, a backup UPS power supply is enough to cope with the general family, or the ordinary office place with low requirements.
2. How much UPS power supply is available
At present, the average power consumption of a computer is about 250VA, and a backup 500VA UPS can provide about 10 minutes of power for it. This time is completely guaranteed that you have enough time to save the files and then shut down the computer normally. There are several computers in the home that can calculate the total power by themselves, and then select the appropriate UPS capacity. For some special commercial and industrial applications, the calculation is much more complex. Because of the requirements of these departments for UPS, it is often necessary to ensure that dozens of computers can work for more than ten hours or even dozens of hours in case of power grid power failure.