涩涩电影一区二区三区在线观看|日韩亚洲国产综合αv高清|搡老熟女老女人一区二区|日本国产欧美在线观看,欧美亚州特黄一区二区三区四区,亚洲国产午夜精品一区二区,亚洲日本VA久久一区二区

·The Basic Functions of  UPS

1. When grid voltage is normal, electricity supply is supply to the use of load after the voltage regulator of the UPS. UPS with good performance itself is a good communication regulator. At the same time, it can charge the battery inside the machine to store back-up energy;

2. When grid voltage is abnormal (undervoltage, overvoltage, power-down, interference, etc.) UPS inverter to the DC battery pack can be converted into AC power to maintain the load power supply;

3. UPS can have automatic conversion between the battery-powered electricity and grid-powered electricity, to ensure uninterrupted power supply to the load. General computer equipment can allow a very small power interruption (switching time less than 10ms), but the sophisticated computer equipment and communications equipment does not allow any interruption of electricity (switching time of 0ms), so you need to be sure the exactly switching time of the UPS.