What is AC uninterruptible power supply system (UPS)?
On line UPS is usually powered by the inverter output to the load, and only when the UPS is out of order, overload or overheating will it be transferred to the load via the bypass. The characteristics of online UPS power output: after UPS treatment, the highest output power quality; no transition time; complicated structure and high cost; protect the best performance of electrical noise and surge suppression ability.
UPS is the abbreviation of Uninterruptible Power Supply, which is an important external equipment to provide continuous, stable and uninterrupted power supply.
The offline uninterruptible power supply is shown above. The mains supplies power directly to the load via the bypass. Only when a power failure occurs, can the battery energy be converted into AC to supply power to the load through the inverter. Characteristics of off-line uninterruptible power supply:When the normal electricity, off-line UPS of electricity without any treatment and direct output to the load, so the electric noise and surge suppression ability; conversion time; the worst performance; has the advantages of simple structure, small volume, light weight, easy control, low cost.
Types of uninterruptible power supplies (UPS)UPS can be broadly divided into three types: offline (Off, Line), online (On, line) and online interactive (Line interactive).
It ensures that the computer system continues to work for a period of time after the power failure so that users can save it urgently, so that you do not work or lose data due to power failure. It is in the computer system and network application, mainly has two functions: one is to use the emergency, to prevent a sudden power failure and affect the normal work, causing damage to the computer; the two is to eliminate the surge, the city electric moment of high voltage, low voltage, instantaneous wire noise and frequency offset "power pollution", the improvement of power supply quality, provide high quality power supply for computer system.
