What are the UPS power supplies and its uses and features?
UPS power supplyNetwork equipment and communication equipment precision is not allowed with intermittent power, to the server as the core network center to be equipped with UPS is self-evident, even an ordinary computer, the use of three months after the data file has exceeded the value of software and hardware, so as to prevent data loss is also equipped with UPS is a must.According to IDC statistics, all 45% computer fault is caused by power supply problems; in China, the number of big city blackout for an average of 0.5 times per month, medium city is 2 times / month, a small city or town is 4 times per month, at least nine kinds of problems: power grid, lightning surge, frequency, peak the rate of oscillation, voltage mutation, voltage fluctuation, frequency drift, voltage sag, pulse interference; so from the perspective of improving power quality to a computer equipped with a UPS is very necessary.
What is the UPS power supply?UPS is the abbreviation of uninterruptible power system, which is an important external equipment to provide continuous, stable and uninterrupted power supply.In principle, the UPS is a power electronics device incorporating digital and analog circuits, automatic control inverters, and maintenance free storage devices;Functionally, UPS can effectively purify the city power when the city power is abnormal. It can also supply power to the computer and other equipment for a certain period of time when the city power breaks suddenly, so that you can have enough time to cope with it;
UPS, that is, uninterruptible power supply, is the battery (more than lead-acid battery maintenance) connected with the host, through the host, inverter and other circuit modules to convert DC to urban electricity system equipment. The utility model is mainly used for providing stable and uninterrupted power supply for a single computer, a computer network system or other power electronic equipment, such as an electromagnetic valve, a pressure transmitter, etc.. When the power input is normal, UPS electric voltage supplied to the load, the UPS is an AC electric regulator, it is also the built-in battery; when the power interruption (outage), UPS immediately DC battery energy through the inverter switching conversion method continue to supply 220V AC power to the load, the load to maintain normal working load and protection of software and hardware is not damaged. UPS devices are usually protected against high voltage or low voltage.
What is the use of the UPS power supply?From the use, with the coming of information society, UPS is widely used in the information collection, transmission, processing, storage and application to each link, its importance is increased with the increasing importance of information applications.
UPS is divided into three major categories: backup, online and online;The US is the most commonly used backup UPS, such as the four HO series and SD series, it has automatic voltage regulator, power protection UPS the most basic and most important function, although the general conversion period of about 10ms, inverter output AC square wave and non sine wave, but due to the simple structure has the advantages of low cost, high reliability, so it is widely used in computer peripherals, POS, machine etc.;The on-line UPS structure is complex, but the perfect performance, can solve the problem of power supply, such as the four PS series, its remarkable characteristic is to continue zero interrupt output pure sine wave AC power supply, can solve all the problems of the peak surge, frequency drift; due to the need for greater investment, usually in the key equipment and network center the electric power demanding environment application;The other four, APC and other manufacturers also provides online interactive UPS, compared with the backup, online interactive with the function of filtering, anti electrical interference ability is very strong, the conversion time is less than 4ms, the inverter output is analog sine wave, so can be equipped with servers, routers and other network devices, or in a relatively harsh environment of power area; especially the four MD series UPS, the price is far lower than the line, should be a better choice to recommend to the user.
