How to buy UPS uninterruptible power supply?
Selection of imported UPS power supply should pay attention to the problem
Some imported UPS power input and output wiring and our country is different from the selection should pay attention to the improved method. US UPS power input and output wiring and the opposite of our standards. Simply put, China's single-phase power supply is left and right fire, while the United States is left fire right zero. In addition, but also note that the American Standard socket plug style and our country is not the same. In the United States national standard plug and socket to China's national standard plug socket, should pay attention to the internal joint relationship, can not simply line.
Maintenance is also a factor in the selection of convenience
UPS power failure is a normal phenomenon, in the selection, maintenance convenience, but also can not be underestimated factors, otherwise it will bring inconvenience to the use of maintenance.
Estimate the power of the UPS power supply
According to the computer and its external equipment, electricity consumption, calculate the total power consumption of equipment. The total power multiplied by the safety factor, that is, UPS power supply estimated power, safety factor is generally taken 1.2-1.3 is appropriate.
In the selection of backup UPS power supply should pay attention to the problem
In the choice of backup UPS power supply, special attention should be paid to the power switch time. Switching time, the main reaction in the UPS power supply switching time and the computer to switch the time requirements. If you choose improper, in the city power failure will cause the computer downtime, not up to the role of any ups power.
Understand the power supply status of the UPS power supply site
Before purchasing the UPS power supply, understand the power supply status of the UPS power supply site. General UPS power supply to the mains input requirements are: input voltage 380V ± 10%, 220V ± 10%; frequency 50 ± 0.5Hz. If the use of site power supply conditions below this standard should be a wide range of input UPS power supply, also You can add a regulated power supply or voltage regulator to the front of the UPS power supply.
Domestic and imported UPS power supply choice
In the domestic and imported UPS power supply selection red, the general recommendation to use domestic UPS power supply. In recent years, domestic small UPS power supply in the quality of a great increase. Selection of domestic small UPS power supply, on the one hand is the support of their own economic and technological development, on the other hand in the maintenance of a great convenience, such as spare parts more complete, maintenance and repair speed more satisfied. Imported UPS power supply is generally better quality, but because of maintenance technology and spare parts difficult, in the event of failure, often can not be repaired in time, long shelves can not be used. Domestic UPS power supply in the work performance, is more in line with the domestic power supply situation, such as some models of UPS power input voltage range is wide, there is a regulator output function to adapt to some of China's poor supply conditions of the environment. China's People's Bank of electronic construction, proposed the use of domestic UPS power supply policy, is undoubtedly a good start.
Selection of on-line and backup UPS power supplies
Selection of on-line or backup UPS power supply, should be based on the needs of computer equipment and economic conditions to set. If the economic conditions available online UPS power supply; if the economic conditions are poor, but does not affect the normal operation of the computer, backup UPS power supply can also be selected.
