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Battery in UPS power supply system of function and meaning

by:KEBO      2020-04-28
Battery has been widely used in UPS, its variety, complete models, different specifications, but according to its basic nature acid batteries and alkaline batteries can be divided into two categories: acid battery: acid battery electrolyte is generally by dilute sulphuric acid ( H2SO4) Or colloidal form sulfate, plate made of lead Pb and the alumina PbO2, storage charge through chemical reaction, have the effect of battery energy storage. Alkaline batteries, alkaline batteries are generally composed of potassium hydroxide KOH electrolyte or sodium hydroxide (NaOH Caustic soda) Composition. Plate varies due to the structure of the battery. Such as nickel cadmium battery positive plate is nickel hydroxide Ni ( 哦) 3, the negative plate is cadmium Cd; Iron nickel positive plate of the battery is nickel hydroxide Ni ( 哦) 3, the negative plate is iron Fe; Silver zinc plate is the batteries are silver peroxide Ag2O3, negative plate is zinc zinc. USES mostly in UPS power supply system, battery maintenance free storage battery. Battery in UPS power supply system, the main function is to store electricity, once the mains interruption, supplied by the battery discharge inverter, the inverter will cells release the dc into sinusoidal alternating current (ac), to maintain the power supply output of UPS, to ensure normal power of load in a certain period of time. When normal power grid in the rectifier and battery To store electrical energy in the charging circuit, as well as the dc have the effect of smoothing filtering, and the inverter overload occurs, have the effect of buffer. In daily work, people often one-sided think is maintenance-free battery and do not add value. However due to the unreasonable use of battery, the battery electrolyte of dry, thermal runaway, early internal short circuit capacity loss, and other issues, which seriously affects the reliability of power supply system. There are data show that battery failure caused by the UPS host failure or work abnormal proportion is about 60%. Therefore, to strengthen the correct use and maintenance of UPS battery, to extend the service life of battery, reduce failure rate, UPS power supply system is more and more important significance.
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