UPS不间断电源工作原理（国外英文资料）.doc

UPS不间断电源工作原理（国外英文资料） UPS does not break the power supply Abstract: this paper introduces the basic composition, principle and characteristics of UPS power system, and elaborates on how to complete and perfect the maintenance. Keywords: UPS storage battery One, the introduction Ensuring normal supply of electricity in any situation is an important basis for the metallurgical industry. For this reason, the UPS power supply system will be required except for the normal power supply of the industrial power grid. UPS power supply is the important apparatus to ensure power supply stability and continuity, because of its high intelligent degree, main machine adopts maintenance-free battery energy storage equipment, makes in the run often ignore the maintenance and overhaul of the system. Actually the stand or fall of maintenance, has a great influence on the power of life and failure rate, below according to the specific situation we use and maintenance experience introduction to the use of UPS power considerations and daily maintenance requirements. Although there are differences in the number of UPS and system capacity of UPS systems, the principle and main functions are the same. On a multipoint in UPS power type choice, chose the on-line, at this time for on-line UPS power supply system has all kinds of switching power supply of the zero time, the length of its own power supply time is optional, and has the characteristics of the voltage, frequency stabilization, purification. When the UPS power system itself fails, there are automatic by-pass functions, which can be operated by manual bypass when necessary, so that the maintenance and power supply will not be affected. In the power selection, the small and medium size bars of laishan are chosen for the medium power system. Two, the UPS power system The UPS power system consists of four parts: rectifier, storage, transformation and switch control. Voltage stabilizing function of the system is usually done by the rectif